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Showing posts with the label TDA Amplifiers

22 Watt Car Subwoofer Amplifier

Circuit Description
     The stereo signals coming from the line outputs of the car radio amplifier are mixed at the input and, after the Level Control, the signal enters the buffer IC1A and can be phase reversed by means of SW1. This control can be useful to allow the subwoofer to be in phase with the loudspeakers of the existing car radio. Then, a 12dB/octave variable frequency Low Pass filter built around IC1B, Q1 and related components follows, allowing to adjust precisely the low pass frequency from 70 to 150Hz. Q2, R17 and C9 form a simple dc voltage stabilizer for the input and filter circuitry, useful to avoid positive rail interaction from the power amplifier to low level sections.      This unit is intended to be connected to an existing car stereo amplifier, adding the often required extra "punch" to the music by driving a subwoofer. As very low frequencies are omnidirectional, a single amplifier is necessary to drive this dedicated loudspeaker. The power amplifie…

8W AUDIO AMPLIFIER TDA1908

General Description:
The TDA1908 is a monolithic integrated circuit in 12 lead quad in-line plastic package intended for low frequency power applications.The mounting is compatible with the old types TBA800, TBA810S, TCA830S and TCA940N. Its main features are:
Features:
flexibility in use with a max output curent of 3A and an operating supply voltage range of 4V to 30V;protection against chip overtemperature;soft limiting in saturation conditions;low ”switch-on” noise;low number of external components;high supply voltage rejection;
Circuit Diagram

TDA1015 Audio Amplifier 1x4W

TDA1015general description:

The TDA1015 is a monolithic integrated audio amplifier circuit in a 9-lead single in-line (SIL) plastic package. The device is especially designed for portable radio and recorder applications and delivers up to 4 W in a 4Ω load impedance. The very low applicable supply voltage of 3,6 V permits 6 V spplications.
TDA1015 features:

single in-line (SIL) construction for easy mountingseparated preamplifier and power amplifierhigh output powerthermal protectionhigh input impedancelow current drainlimited noise behaviour at radio frequencies
TDA1015 reference data:

Supply voltage range VP 3,6 to 18 VPeak output current IOM max. 2,5 AOutput power at dtot= 10%VP = 12 V; RL = 4 Ω Po typ. 4,2 WVP = 9 V; RL = 4 Ω Po typ. 2,3 WVP = 6 V; RL = 4 Ω Po typ. 1,0 WTotal harmonic distortion at Po = 1 W; RL = 4 Ω dtot typ. 0,3 %Input impedance preamplifier (pin 8) |Zi | > 100 kΩ power amplifier (pin 6) |Zi| typ. 20 kΩTotal quiescent current Itot typ. 14 mAOperating ambient temperat…

TDA2005 Audio Amplifier 2x10w

TDA2005 description:

The TDA2005 is a class B dual audio power amplifier in Multiwatt11 package specifically designed for car radio applications. Power booster amplifiers can be easily designed  using this device that provides a high current  capability (up to 3.5 A) and can drive very low  impedance loads (down to 1.6  in stereo  applications) obtaining an output power of more than 20 W (bridge configuration). TDA2005 Audio Amplifier 2x10w
TDA2005 features:High output power:
Po = 10 + 10 W @ RL = 2 , THD = 10 %
Po = 20 W @ RL = 4 , THD = 10 %.
Protection against:
Output DC and AC short circuit to ground
Overrating chip temperature
Load dump voltage surge
Fortuitous open ground
Very inductive loads
Loudspeaker protection during short circuit for one wire to ground

TDA2005 circuit diagram:
TDA2005 layout:

TDA7338 FM stereo decoder circuit design

The pilot detector output is designed as an open collector output, therefore an external pull up resistor is needed. To force the decoder to `MONO` Pin 19 has to be clamped to a voltage below 0. 8V. visit page.

12 W Bridge Amplifier circuit diagram

The following schematic shows 12 W Bridge Amplifier circuit diagram as an application of the TDA2007A a class AB dual audio power amplifier which is designed for stereo application in music centers, TV receivers and portable radios. According to the datasheet, this TDA2007A has features such high output power, high current capability, AC short circuit protection, and thermal overload. via next.gr

4 x 45 W power amplifier

General description
The TDA8593J is a complementary quad BTL audio power amplifier made in BCDMOS technology. It contains four independent amplifiers in Bridge Tied Load (BTL) configuration. Through the I2C-bus, the diagnostic information of each amplifier and speaker can be read separately. Both front and both rear channel amplifiers can be configured independently in line driver mode with a gain of 20 dB.
Features
I2C-bus controlHardware programmable I2C-bus addressCan drive a 2 Ω load with a battery voltage of up to 16 V and a 4 Ω load with a battery voltage of up to 18 VDC-load detection: open, short and presentAC-load (tweeter) detectionProgrammable clip detection: 1 % or 3 %Programmable thermal protection pre-warningIndependent short-circuit protection per channelLow gain line driver mode (20 dB)Loss-of-ground and open VP safeAll outputs protected from short-circuit to ground, to VP, or across the loadAll pins protected from short-circuit to groundSoft thermal clipping to prevent a…

2 x 32W DUAL BRIDGE CAR RADIO AMPLIFIER TDA7393

Features:
HIGH OUTPUT POWER CAPABILITY:2 x 35W max./4Ω2 x 32W EIAJ/4Ω2 x 22W typ./4Ω @ 14.4V, 1KHz, 10%2 x 19W typ./4Ω @ 13.2V, 1KHz, 10%2 x 28W typ./2Ω @ 14.4V, 1KHz, 10%2 x 25W typ./2Ω @ 13.2V, 1KHz, 10%LOW DISTORTIONLOW OUTPUT NOISEST-BY FUNCTIONMUTE FUNCTIONAUTO-MUTE AT MIN. SUPPLY VOLTAGEDETECTIONLOW EXTERNAL COMPONENT COUNT– INTERNALLY FIXED GAIN (32dB)– NO EXTERNAL COMPENSATION– NO BOOTSTRAP CAPACITORSADDITIONAL MONO INPUTOUTPUT AC/DC SHORT CIRCUIT TO GNDAND TO VSVERY INDUCTIVE LOADSOVERRATING CHIP TEMPERATURE WITHSOFT THERMAL LIMITER
Circuit Diagram:

4 x 22W FOUR BRIDGE CHANNELS CAR RADIO AMPLIFIER TDA7382

Circuit Diagram:

22W BRIDGE / STEREO AUDIO AMPLIFIER WITH CLIPPING DETECTOR TDA7360

General Description:

TDA7360 is a new technology class AB Audio Power Amplifier in the Multiwatt package
designed for car radio applications.
Circuit Diagram

14 + 14W STEREO AMPLIFIER WITH MUTE & ST-BY

Features

WIDE SUPPLY VOLTAGE RANGE UP TO
±20V
SPLIT SUPPLY
HIGH OUTPUT POWER
14 + 14W @ THD =10%, RL = 8Ω, VS = +16V
NO POP AT TURN-ON/OFF
MUTE (POP FREE)
STAND-BY FEATURE (LOW Iq)
SHORT CIRCUIT PROTECTION TO GND
THERMAL OVERLOAD PROTECTION

Circuit Diagram:


10+10W DUAL BRIDGE AMPLIFIER TDA7266B

Features


WIDE SUPPLY VOLTAGE RANGE (6V -18V)MINIMUM EXTERNAL COMPONENTSNO SVR CAPACITORNO BOOTSTRAPNO BOUCHEROT CELLSINTERNALLY FIXED GAINSTAND-BY & MUTE FUNCTIONSSHORT CIRCUIT PROTECTIONTHERMAL OVERLOAD PROTECTION

DESCRIPTION

The TDA7266B is a dual bridge amplifier specially designed for TV and Portable Radio applications
Circuit Diagram



7+7W DUAL BRIDGE AMPLIFIER

Features:

WIDE SUPPLY VOLTAGE RANGE (3-18V)MINIMUM EXTERNAL COMPONENTSNO SWR CAPACITORNO BOOTSTRAPNO BOUCHEROT CELLSINTERNALLY FIXED GAINSTAND-BY & MUTE FUNCTIONSSHORT CIRCUIT PROTECTIONTHERMAL OVERLOAD PROTECTIOCircuit Diagram:

25 + 25W STEREO AMPLIFIER WITH MUTE/ST-BY

Features

WIDE SUPPLY VOLTAGE RANGE (UP TO 50V ABS MAX.)SPLIT SUPPLYHIGH OUTPUT POWER: 25 + 25W @ THD =10%, RL = 8Ω, VS = +20VNO POP AT TURN-ON/OFFMUTE (POP FREE)STAND-BY FEATURE (LOW IQ)FEW EXTERNAL COMPONENTSSHORT CIRCUIT PROTECTIONTHERMAL OVERLOAD PROTECTIONCircuit Diagram
Layout:



12 +12W STEREO AMPLIFIER WITH MUTING

20+20W STEREO AMPLIFIER WITH STAND-BY

8W AMPLIFIER WITH MUTING

Features:

WIDE SUPPLY VOLTAGE RANGE
8W @ VS=26V, RL = 8Ω, THD=10%
MUTE FACILITY (POP FREE) WITH LOW
CONSUMPTION
AC SHORT CIRCUIT PROTECTION
THERMAL OVERLOAD PROTECTION
(150°C)

DESCRIPTION

The TDA7253 is class AB audio power amplifier assembled in the new Clipwatt package.
Circuit Diagram:

60 W HI-FI DUAL AUDIO DRIVER

Features:
WIDESUPPLY VOLTAGE RANGE : 20 TO 90 V (± 10 to ± 45 V)VERY LOW DISTORTIONAUTOMATIC QUIESCENT CURRENTCONTROL FOR THE POWER TRANSISTORS WITHOUT TEMPERATURE SENSE ELEMENTSOVERLOAD CURRENT PROTECTION FORTHE POWER TRANSISTORSMUTE/STAND-BY FUNCTIONSLOW POWER CONSUMPTIONOUTPUT POWER 60 W/8 Ω AND 100 W/4 Ω

DESCRIPTION:
The TDA7250 stereo audio driver is designed to drive two pair of complementary output transistor in the Hi-Fi power amplifiers.
Circuit Diagram:

5W AUDIO AMPLIFIER WITH MUTING AND STAND-BY TDA7245

Features

MUTING AND STAND-BY FUNCTIONSVOLTAGE RANGE UP TO 30VHIGH SUPPLY VOLTAGE REJECTIONSVR TYP = 50dB (f = 100Hz)MUSIC POWER = 12W (RL = 4Ω, d = 10%)PROTECTION AGAINST CHIP OVERTEMPERATUREGeneral Description

The TDA7245 is a monolithic integrated circuit in 9+9 POWERDIP package, intended for use as low frequency power amplifier in a wide range of applications in radio and TV sets
Circuit Diagram

Low voltage mono/stereo power amplifier

GENERAL DESCRIPTION
The TDA7050T is a low voltage audio amplifier for small radios with headphones (such as watch, pen and pocket radios) in mono (bridge-tied load) or stereo applications.
Features
Limited to battery supply application only (typ. 3 and 4 V)Operates with supply voltage down to 1,6 VNo external components requiredVery low quiescent currentFixed integrated gain of 26 dB, floating differential inputFlexibility in use − mono BTL as well as stereoSmall dimension of encapsulation (see package design example).Circuit Diagram