9/30/2014

Class-H high-output voltage level line driver

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General Description:
The TDA8576T is a two channel class-H high-output voltage line driver for use in car audio applications. The line driver operates as a non-inverting amplifier with a gain of 6 dB and a single-ended output. Due to the class-H voltage lifting principle the voltage swing over the load is more than the supply voltage. With a supply voltage of 9 V the output voltage swing over the load will be more than 14 V (peak-to-peak). The TDA8576T is available in a SO16 package. Line drivers are necessary in car audio systems in which the power amplifiers are driven by long cables. The signal-to-noise ratio of these car audio systems is improved by using the TDA8576T class-H high-output level line driver. The high-output level of TDA8576T enables a reduction of the gain of the power amplifier resulting in an improvement of the power amplifier performance.
Circuit Diagram:
Class-H high-output voltage level line driver
Datasheet for TDA8576: Download
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2 x 20 W BTL amplifiers

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General Description:
The IC incorporates the following functions:
4 × 6 W SE amplifies without SE capacitor, because of the availability of 2 half supply voltage power buffers. 2. 2 × 20 W BTL amplifiers. Automatic switching between 2 and 4 speaker operation. The mode of operation is determined during start-up.
This amplifier is protected for all general short-circuit conditions to battery or ground, overvoltage, 45 V load dump and short-circuits on the speaker outputs. The IC is contained in a 20-pin power HSOP package, but is also available in a 17-pin SIL power package. When packaged in the 20-pin HSOP package additional functions are available:
DDD level selection between 2 and 10% Overrule pin for changing mode of operation (from SE to BTL or from BTL to SE).
Circuit Diagram:
2 x 20 W BTL amplifiers
2 x 20 W BTL amplifiers
Datasheet for TDA8586: Download
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2 x 80 W class-D audio amplifier

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General Description:     
The TDA8927 is the switching power stage of a two-chip set for a high efficiency class-D audio power amplifier system. The system is split into two chips: 
• TDA8927J/ST/TH; a digital power stage in a DBS17P, RDBS17P or HSOP24 power package
• TDA8929T; the analog controller chip in a SO24 package.
     With this chip set a compact 2 × 80 W audio amplifier system can be built, operating with high efficiency and very low dissipation. No heatsink is required, or depending on supply voltage and load, a very small one. The system operates over a wide supply voltage range from ±15 up to ±30 V and consumes a very low quiescent current.
Circuit Diagram:
Circuit diagram for 2 x 80 W class-D audio amplifier
Circuit diagram for 2 x 80 W class-D audio amplifier


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Power stage 2 x 10 or 1 x 20 W class-D audio amplifier

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General Description:
The TDA8928J is a switching power stage for a high efficiency class-D audio power amplifier system. With this power stage a compact 2 × 10 W self oscillating digital amplifier system can be built, operating with high efficiency and very low dissipation. No heatsink is
required. The system operates over a wide supply voltage range from ±7.5 V up to ±30 V and consumes a very low quiescent current.

Circuit Diagram:
Power stage 2 x 10 or 1 x 20 W class-D audio amplifier
Datasheet for TDA8928: Download
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Controller class-D audio amplifier

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General Description:
The TDA8929T is the controller of a two-chip set for a high efficiency class-D audio power amplifier system. The system is divided into two chips:
• TDA8929T; the analog controller chip in a SO24 package
• TDA8926J/ST/TH or TDA8927J/ST/TH; a digital power stage in a DBS17P, RDBS17P or HSOP24 power package.
With this chip set a compact 2 × 50 W or 2 × 100 W audio amplifier system can be built, operating with high efficiency and very low dissipation. No heatsink is required, or depending on supply voltage and load, a very small one. The system operates over a wide supply voltage range from ±15 up to ±30 V and consumes a very low quiescent current.

Circuit Diagram:
Controller class-D audio amplifier

Datasheet for TDA8929T: Download
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TDA8931 Power comparator 1 × 20 W

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General Description:
The TDA8931 is a switching power stage for high efficiency class-D audio power amplifier systems. It contains a Single-Ended (SE) power stage, drive logic, protection control logic, a full differential input comparator and a HVP charger to charge the SE capacitor. With this amplifier a compact 1 × 20 W closed loop self-oscillating digital amplifier system can be built. The TDA8931 has a high efficiency so that a heat sink is not required up to 20 W (RMS). The system operates on an asymmetrical and a symmetrical supply voltage.

Circuit Diagram:
Circuit Diagram for TDA8931 Power comparator 1 × 20 W
Datasheet for TDA8931: Download
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9/29/2014

6 W mono Bridge Tied Load

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General Description:
The TDA8943SF is a single-channel audio power amplifier with an output power of 6 W at an 8 Ω load and a 12 V supply. The circuit contains a Bridge Tied Load (BTL) amplifier with an all-NPN output stage and standby/mute logic. The TDA8943SF comes in a 9-lead single in-line (SIL) medium power package. The TDA8943SF is printed-circuit board (PCB) compatible with all other types in the TDA894x family. One PCB footprint accommodates both the mono and the stereo products.

Circuit diagram:
6 W mono Bridge Tied Load
Datasheet for TDA8943: Download
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2 x 7 W stereo audio amplifier

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General Description:
The TDA8944J is a dual-channel audio power amplifier with an output power of 2 × 7 W at an 8 Ω load and a 12 V supply. The circuit contains two Bridge Tied Load (BTL) amplifiers with an all-NPN output stage and standby/mute logic. The TDA8944J comes in a 17-pin DIL-bent-SIL (DBS) power package. The TDA8944J is printed-circuit board (PCB) compatible with all other types in the TDA894x family. One PCB footprint accommodates both the mono and the stereo products.
Circuit Diagram:
Circuit diagram

Datasheet for TDA8944: Download

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2 x 15 W stereo Bridge Tied Load (BTL) audio amplifier

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General description:
The TDA8946J is a dual-channel audio power amplifier with an output power of 2 × 15 W at an 8 Ω load and a 18 V supply. The circuit contains two Bridge Tied Load (BTL) amplifiers with an all-NPN output stage and standby/mute logic. The TDA8946J comes in a 17-pin DIL-bent-SIL (DBS) power package. The TDA8946J is printed-circuit board (PCB) compatible with all other types in the TDA894x family. One PCB footprint accommodates both the mono and the stereo products.

Features:

  • Few external components
  • Fixed gain
  • Standby and mute mode
  • No on/off switching plops
  • Low standby current
  • High supply voltage ripple rejection
  • Outputs short-circuit protected to ground, supply and across the load
  • Thermally protected
  • Printed-circuit board compatible
Circuit Diagram:
Circuit Diagram for 2 x 15 W stereo Bridge Tied Load (BTL) audio amplifier
PCB layout:
PCB layout TDA8946

Datasheet for TDA8946J: Download
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Audio FM processor for VHS hi-fi audio

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General Description:
The TDA9610H is a dual audio FM processing IC for VHS hi-fi audio, digitally controlled via the I2C-bus. The FM (de)modulator and peak noise reduction functions are highly integrated, resulting in few external components and adjustments.  In addition special functions for audio editing, mixing and dubbing have been implemented. 
Circuit Diagram:
Audio FM processor for VHS hi-fi audio
Datasheet for TDA9610H: Download

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Dual channel TV FM intercarrier sound demodulator

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General Description:
The TDA9821 is a monolithic, integrated, TV FM intercarrier sound demodulator for all FM standards. The circuit contains two separate FM demodulators using Phase Locked Loop (PLL) reference frequency generation. The circuit requires a minimum number of  external components.
Circuit Diagram:
Dual channel TV FM intercarrier sound demodulator
Datasheet for TDA9821: Download
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AM-demodulator and audio source switch

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General Description:
The TDA9830, a monolithic integrated circuit, is designed for AM-sound demodulation used in L- and L’-standard. The IC provides an audio source selector and also mute switch.
Circuit Diagram:
AM-demodulator and audio source switch
Datasheet for TDA9830: Download
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TV and VTR stereo/dual sound processor with digital identification

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General Description:
The TDA9847 is a stereo/dual sound processor for TV and VTR sets. Its identification ensures safe operation by using internal digital PLL technique with extremely small bandwidth, synchronous detection and digital integration (switching time maximum 2.0 s; identification concerning the main functions).
Circuit Diagram:
TV and VTR stereo/dual sound processor with digital identification
Datasheet for TDA9847: Download

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SAP decoder and audio processor

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The TDA9852 is a bipolar-integrated BTSC stereo decoder with hi-fi audio processor (I2C-bus controlled) for application in TV sets, VCRs and multimedia.

Circuit Diagram:
SAP decoder and audio processor

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Stereo Decoder and Audio Processor

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The TDA9853H is a bipolar-integrated BTSC stereo decoder and audio processor for application in TV sets, VCRs and multimedia PCs.

Circuit Diagram:
Circuit diagram for Stereo Decoder and Audio Processor TDA9853H

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Universal HiFi audio processor for TV

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General Description:

The TDA9861 provides control facilities for the main, the headphone and the SCART channel of a TV set. Due to extended switching possibilities, signals from 3 stereo sources can be handled.

Circuit Diagram:
Circuit Diagram Universal HiFi audio processor for TV

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Stereo Sound Decoder

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General Description:
The TDA9873H is an economic multistandard dual FM demodulator and analog carrier stereo decoder with I2C-bus control.
Circuit Diagram:
Stereo Sound Decoder
Datasheet for TDA9873: Download
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Digital TV sound demodulator/decoder

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 FEATURES
• Sound IF (SIF) input switch
• SIF AGC with 24 dB control range
• Switchable 10 dB SIF input attenuator
• SIF 8-bit Analog-to-Digital Converter (ADC)
• Easy TV standard programming option
• Differential Quadrature Phase Shift Keying (DQPSK) demodulation for different standards, simultaneously with 1-channel FM demodulation
• NICAM decoding (B/G, D/K, I and L standard)
• 2-carrier multi-standard FM demodulation (B/G, D/K and M standard)
• Single carrier high deviation FM mono demodulation mode
• Decoding for three analog multi-channel systems (A2) and satellite sound
• Adaptive de-emphasis for satellite
• Programmable identification (B/G, D/K and M standard) and different identification times
• FM pilot carrier presence detector
• Optional AM demodulation for system L, simultaneously with NICAM
• Monitor selection for FM/AM demodulator outputs and FM and NICAM signals with peak option
• Automatic FM dematrixing option
• Digital crossbar switch
• I2S-bus serial audio output with matrix, level adjustment and mute
• Dual audio Digital-to-Analog Converter (DAC) from digital crossbar switch to analog crossbar switch, bandwidth = 15 kHz
• Automatic Volume Level (AVL) control
• Analog crossbar switch with inputs for mono and stereo
• Output selection of mono, stereo, dual, dual A or dual B
• Additional mono output with automatic select
• 20 kHz bandwidth for analog path
• Standby mode
• Automatic output selection for TV applications.
GENERAL DESCRIPTION
The TDA9874A is a single-chip Digital TV Sound Demodulator/Decoder (DTVSD) for analog and digital multi-channel sound systems in TV/VCR sets and satellite  receivers.
Circuit Diagram:
Digital TV sound demodulator/decoder

Datasheet for TDA9874: Download
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TDA9875 Digital TV Sound Processor

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GENERAL DESCRIPTION:

The TDA9875 is a single-chip Digital TV Sound Processor (DTVSP) for analog and digital multi-channel sound systems in TV sets and satellite receivers.
Circuit Diagram:

TDA9875 Digital TV Sound Processor
Datasheet for TDA9875: Download

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FM sound IF-PLL demodulator

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GENERAL DESCRIPTION
The TDA9880(T) is an integrated circuit for multistandard vision IF signal processing and FM demodulation in TV and VTR sets.
Circuit Diagram:
FM sound IF-PLL demodulator
Datasheet for TDA9880: Download

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I 2C-bus controlled multistandard alignment-free IF-PLL demodulator with FM radio

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FEATURES:
• 5 V supply voltage
• Gain controlled wide-band Vision Intermediate Frequency (VIF) amplifier, AC-coupled
• Multistandard true synchronous demodulation with active carrier regeneration: very linear demodulation, good intermodulation figures, reduced harmonics, and excellent pulse response
• Gated phase detector for L and L-accent standard
• Fully integrated VIF Voltage Controlled Oscillator (VCO), alignment-free, frequencies switchable for all negative and positive modulated standards via I2C-bus
• Digital acquisition help, VIF frequencies of 33.4, 33.9, 38.0, 38.9, 45.75, and 58.75 MHz
• 4 MHz reference frequency input: signal from Phase-Locked Loop (PLL) tuning system or operating as crystal oscillator
• VIF Automatic Gain Control (AGC) detector for gain control, operating as peak sync detector for negative modulated signals and as a peak white detector for positive modulated signals
• VIF-AGC monitor output at pin OP2
• External VIF-AGC setting via pin OP1
• Precise fully digital Automatic Frequency Control (AFC) detector with 4-bit digital-to-analog converter, AFC bits readable via I2C-bus
• TakeOver Point (TOP) adjustable via I2C-bus or alternatively with potentiometer
• Fully integrated sound carrier trap for 4.5, 5.5, 6.0, and 6.5 MHz, controlled by FM-PLL oscillator
• Sound IF (SIF) input for single reference Quasi Split Sound (QSS) mode, PLL controlled
• SIF-AGC for gain controlled SIF amplifier, single reference QSS mixer able to operate in high performance single reference QSS mode and in intercarrier mode, switchable via I2C-bus 
• AM demodulator without extra reference circuit
• Alignment-free selective FM-PLL demodulator with high linearity and low noise
• I2C-bus control for all functions
• I2C-bus transceiver with pin programmable Module Address (MAD)
• Four selectable I2C-bus addresses
• SIF and FM-AGC for radio (optional)
• Radio IF (RIF) input using the sound IF SAW input for converting to 10.7 MHz, input frequencies are 41.3 MHz for NTSC (M/N standard) applications and 33.3 MHz for other applications
• Alignment-free FM radio demodulation at 10.7 MHz
• Radio AFC
• External FM input and demodulation.
GENERAL DESCRIPTION:
The TDA9887 is an alignment-free multistandard (PAL, SECAM and NTSC) vision and sound IF signal PLL demodulator for positive and negative modulation, including sound AM and FM processing. A special function is implemented for the demodulation of FM radio signals (fRIF = 10.7 MHz).
Circuit Diagram:
I 2C-bus controlled multistandard alignment-free IF-PLL demodulator with FM radio

Datasheet for TDA9887: Download



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Interference and noise suppression circuit for FM receivers TDA1001B

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GENERAL DESCRIPTION:
The TDA1001B is a monolithic integrated circuit for suppressing interference and noise in FM mono and stereo receivers.
Features:
• Active low-pass and high-pass filters
• Interference pulse detector with adjustable and controllable response sensitivity
• Noise detector designed for FM i.f. amplifiers with ratio detectors or quadrature detectors
• Schmitt trigger for generating an interference suppression pulse
• Active pilot tone generation (19 kHz)
• Internal voltage stabilization
Circuit Diagram:
Interference and noise suppression circuit for FM receivers TDA1001B
Datasheet for TDA1001B: Download
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5-band stereo equalizer circuit

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FEATURES:
• Monolithic integrated 5-band stereo equalizer circuit
• Five filters for each channel
• Centre frequency, bandwidth and maximum boost/cut defined by external components
• Choise for variable or constant Q-factor via I2C software
• Defeat mode
• All stages are DC-coupled
• I2C-bus control for all functions
• Two different modul addresses programmable.

GENERAL DESCRIPTION:
The 5-band stereo equalizer is an 12C-bus controlled tone processor for application in car radio sets, TV sets and music centres. It offers the possibility of sound control as well as equalization of sound pressure behaviour of different rooms or loudspeakers, especially in cars.

Circuit diagram:
5-band stereo equalizer circuit

Datasheet for TEA6360: Download


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Integrated Circuit Module Hybrid Audio Output 4.5W for Car Radio & CB

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Absolute Maximum Ratings: (TA = +25°C unless otherwise specified)
Power Supply Voltage, VCC - 18V
Power Dissipation (TC = +75°C), PD - 4.5W
Operating Temperature Range, Topr  −20° to +75°C
Storage Temperature Range, Tstg   −55° to +125°C

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2-W Stereo Audio Power Amplifier

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DESCRIPTION:
The EUA5202 is a stereo audio power amplifier that delivering 2W of continuous RMS power per channel  into 3-Ω loads. When driving 1W into 8-Ω speakers, the  EUA5202 has less than 0.04% THD+N across its  specified frequency range. Included within this device is 
integrated de-pop circuitry that virtually eliminates  transients that cause noise in the speakers.  Amplifier gain is externally configured by means of two  resistors per input channel and does not require external  compensation for settings of 2 to 20 in BTL mode (1 to  10 in SE mode). An internal input MUX allows two sets  of stereo inputs to the amplifier. In notebook  applications, where internal speakers are driven as BTL  and the line (often headphone drive) outputs are required  to be SE, the EUA5202 automatically switches into SE  mode when the SE/BTL inputs is activated. Consume  only 7mA of supply current during normal operation,  and the EUA5202 also features a shutdown function for  power sensitive applications, holding the supply current  at 1µA. 

FEATURES:
Output Power at 3Ω Load 2W/ch at VDD=5V 800mW/ch at 3V 
Low Supply Current and Shutdown Current 
Integrated Depop Circuit 
Mute and Shutdown Control Function 
Thermal Shutdown Protection 
Stereo Input MUX 
Bridge-Tied Load (BTL) or Single-Ended (SE) Modes. 
TSSOP-24 with Thermal Pad 

Circuit Diagram:
2-W Stereo Audio Power Amplifier 
Datasheet for EUA5202: Download


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2-W FILTERLESS STEREO CLASS-D AUDIO POWER AMPLIFIER

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Features:

  • 2 W Into 3-Ω Speakers (THD+N< 0.4%) < 0.08% THD+N at 1 W, 1 kHz, Into 4-Ω Load
  • Extremely Efficient Third Generation 5-V lass-D Technology:
  • Low Supply Current (No Filter) . . . 8 mA
  • Low Supply Current (Filter) . . . 15 mA
  • Low Shutdown Current . . . 1 µA
  • Low Noise Floor . . . 56 µVRMS
  • Maximum Efficiency Into 3 Ω, 65-70%
  • Maximum Efficiency Into 8 Ω, 75-85%
  • 4 Internal Gain Settings . . . 8-23.5 dB
  • PSRR . . . -77 dB
  • Integrated Depop Circuitry
Description:
The TPA2000D2 is the third generation 5-V class-D amplifier from Texas Instruments. Improvements to previous generation devices include: lower supply current, lower noise floor, better efficiency, four different gain settings, smaller packaging, and fewer external components. The most significant advancement with this device is its modulation scheme that allows the amplifier to operate without the output filter. Eliminating the output filter saves
the user approximately 30% in system cost and 75% in PCB area. The TPA2000D2 is a monolithic class-D power IC stereo audio amplifier, using the high switching speed of power MOSFET transistors. These transistors reproduce the analog signal through high-frequency switching of the output stage. The TPA2000D2 is configured as a bridge-tied load (BTL) amplifier capable of delivering greater than 2 W of continuous average power into a 3-Ω load at less than 1% THD+N from a 5-V power supply in the high fidelity range (20 Hz to 20 kHz). With 1 W being delivered to a 4-Ω load at 1 kHz, the typical THD+N is less than 0.08%. A BTL configuration eliminates the need for external coupling capacitors on the output. Low supply current of 8 mA makes the device ideal for battery-powered applications. Protection circuitry increases device reliability: thermal, over-current, and under-voltage shutdown. Efficient class-D modulation enables the TPA2000D2 to operate at full power into 3-Ω loads at an ambient temperature of 85°C.

Circuit Diagram:

2-W FILTERLESS STEREO CLASS-D AUDIO POWER AMPLIFIER
Datasheet for TPA2000D2: Download
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Dual Low Noise Preamplifier

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Dual Low Noise Preamplifier

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9/18/2014

DIGITAL CONTROLLED STEREO AUDIO PROCESSOR WITH LOUDNESS

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Circuit Diagram:
DIGITAL CONTROLLED STEREO AUDIO PROCESSOR WITH LOUDNESS

Datasheet for TDA7313: Download 

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One Chip AM/FM Radio with Audio Power Amplifier

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Description:
The integrated circuit TDA1083 includes, with exception of the FM front end, a complete AM-/FM-radio-circuit with audio power amplifier. An internal Z-diode stabilizes the supply voltage at VS 13 V, which allows with the aid of a resistor and a rectifier, the circuit to be driven by a higher external supply voltage.

Features:
  • Large supply voltage range VS = 3 to 12 V
  • High AM-Sensitivity
  • Limiting threshold voltage Vi = 50 V
  • Audio output power P0 = 0.7 W
  • AFC-connection for VHF-tuner
  • AM-FM switching without high frequency voltages

Applications:
  • AM-/FM- and audio-amplifier
Circuit Diagram:
Circuit diagram for One Chip AM/FM Radio with Audio Power Amplifier

Datasheet for TDA1083: Download
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5W AUDIO AMPLIFIER WITH MUTING

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Circuit Diagram:
CIRCUIT DIAGRAM FOR 5W AUDIO AMPLIFIER WITH MUTING

Datasheet for TDA1905: Download
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4 x 45 W quad bridge car radio amplifier

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Features:

High output power capability:
4 x 45 W / 4  max.
4 x 26 W / 4  @ 14.4 V, 1 kHz, 10 %
Low distortion
Low output noise
Standby function
Mute function
Automute at min. supply voltage detection
Low external component count:
Internally fixed gain (26 dB)
No external compensation
No bootstrap capacitors

Protections:

Output short circuit to gnd, to VS, across the load
Very inductive loads
Overrating chip temperature with soft thermal limiter
Load dump voltage
Fortuitous open GND
Reversed battery
ESD

Description:

The TDA7388 is an AB class audio power amplifier, packaged in Flexiwatt 25 and designed 
for high end car radio applications. Based on a fully complementary PNP/NPN configuration, the TDA7388 allows a rail to rail output voltage swing with no need of bootstrap capacitors. The extremely reduced boundary components count allows very compact sets.

MUTE and ST-BY utilization:
sstandby and mute operations


Ciruit Diagram:
TDA7388 4 x 45 W quad bridge car radio amplifier circuit diagram
Datasheet for TDA7388: Download

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High Gain, Low Noise Amplifier

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Circuit Diagram:
Circuit Diagram High Gain, Low Noise Amplifier
DataSheet for SMA428A:

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Tone control and surround digitally controlled audio processor with AGC

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Circuit Diagram:

Tone control and surround digitally controlled audio processor with AGC
Datasheet for TDA7443: Download
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9/17/2014

RF FRONT-END FOR DIGITAL RADIO

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Circuit Diagram:
CIRCUIT DIAGRAM FOR RF FRONT-END FOR DIGITAL RADIO
Datasheet for STA001: Download
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Dual audioprocessor with compander and subwoofer output

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Circuit Diagram:
Circuit diagram for dual audioprocessor with compander and subwoofer output
Datasheet for TDA7462D: Download
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AM/FM TUNER FOR CAR RADIO AND HIFI APPLICATIONS

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General Description:
The TDA 7511 is a high performance tuner circuit for AM/FM car radio. It contains mixers, IF amplifiers, demodulators for AM and FM, quality detection, ISS filter and PLL synthesizer with IF counter on a single chip.
Circuit Diagram:
CIRCUIT DIAGRAM AM/FM TUNER FOR CAR RADIO AND HIFI APPLICATIONS

Datasheet for TDA7511: Download


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Low noise dual operational amplifier

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Features:
  • Low voltage noise: 4.5 nV/√Hz
  • High gain bandwidth product: 15 MHz
  • High slew rate: 7 V/µs
  • Low distortion: 0.002%
  • Excellent frequency stability
  • ESD protection 2 kV

General Description:

The LM833 is a monolithic dual operational amplifier particularly well-suited to audio applications. It offers low voltage noise (4.5 nV/√Hz) and high  frequency performances (15 MHz gain bandwidth  product, 7 V/µs slew rate). In addition, the LM833 has a very low distortion  (0.002%) and excellent phase/gain margins.

Circuit Diagram:
Low noise dual operational amplifier
Datasheet for LM833: Download
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Digitally controlled audio processor with surround sound matrix and voice canceller

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General Description:
The TDA7430/TDA7431 is volume tone (bass middle and treble) balance (Left/Right) processors voice canceller for quality audio applications in car radio and Hi-Fi systems. The reproduce surround sound by using programmable phase shifters and a signal matrix. Control of all functions is accomplished by serial bus. The AC signal setting is botained by resisstor networks and switches combined with operational amplifiers. 
Circuit Diagram:
Circuit diagram for Digitally controlled audio processor with surround sound matrix and voice canceller

Datasheet for TDA7430: Download
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10 + 10W stereo amplifier with mute and st-by

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Circuit Diagram:
10 + 10W stereo amplifier with mute and st-by

Datasheet for TDA7269: Download
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70V - 60W DMOS Audio Amplifier

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General Description:
The TDA7296 is a monolithic integrated circuit in Multiwatt15 package, intended for use as audio class AB amplifier in Hi-Fi field applications (Home Stereo, self powered loudspeakers, Topclass TV)

Circuit Diagram:
Circuit diagram for 70V - 60W DMOS Audio Amplifier



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28W Hi-Fi AUDIO POWER AMPLIFIER WITH MUTE / STAND-BY

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Circuit Diagram:
Circuit diagram for 28W Hi-Fi AUDIO POWER AMPLIFIER WITH MUTE / STAND-BY

Datasheet for TDA7298: Download
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Serial bus controlled audio processor

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Circuit Diagram:
Serial bus controlled audio processor
Datasheet for TDA7310: Download

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9/16/2014

3 BAND DIGITAL CONTROLLED AUDIO PROCESSOR

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TDA7319 Circuit diagram for 3 band digital controlled audio processor

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Stereo Decoder TDA7338

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TDA7338 Stereo Decoder

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TDA7348 Digitally controlled audio processor

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Features:
  • Input multiplexer
  • Three stereo and one mono inputs
  • Selectable input gain for optimal adaptation to different sources
  • Volume control in 0.3db steps including gain up to 20dB
  • Zero crossing mute and direct mute
  • Pause detector with programmable threshold
  • Soft mute controlled by software or hardware PIN
  • Bass and treble control
  • Four speaker attenuators
  • Four independent speakers control in 1.25dB steps for balance and fader facilities
  • Independent mute function
  • All functions programmable via serial I2C bus 
Description

The TDA7348 is an upgrade of the TDA7318 audioprocessor. Thanks to the used BIPOLAR/CMOS technology, very low distortion, low noise and DC-stepping are obtained. Due to a highly linear signal processing, using CMOS-switching techniques  instead of standard bipolar multipliers, very low distortion and very low noise are obtained Several new features like softmute, zero-crossing mute and pause detector are implemented. The Soft Mute function can be activated in two  ways, either via the serial bus (bit D0, Mute Byte),  or directly on pin 22 through an I/O line of the  microcontroller Very low DC stepping is obtained by use of a BICMOS technology.

Circuit Diagram:
Circuit Diagram
Datasheet TDA7348: Download
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