AmplifierCircuits

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 louds...

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 8W AUDIO AMPLIFIER TDA1908

TDA1015   g eneral 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 mounting separated preamplifier and power amplifier high output power thermal protection high input impedance low current drain limited noise behaviour at radio frequencies TDA1015  reference data : Supply voltage range VP 3,6 to 18 V Peak output current IOM max. 2,5 A Output power at dtot= 10% VP = 12 V; RL = 4 Ω Po typ. 4,2 W VP = 9 V; RL = 4 Ω Po typ. 2,3 W VP = 6 V; RL = 4 Ω Po typ. 1,0 W Total harmonic distortion at Po = 1 W; RL = 4 Ω dtot typ. 0,3 % Input impedance preamplifier (pin 8) |Zi | > 100 kΩ...

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 Audio Amplifier 2x10w TDA2005 layout: PCB TDA2005 Audio Amplifier 2x10w Layout TDA2005 Audio Amplifier 2x10w...

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. TDA7338 FM stereo decoder circuit design

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 12 W Bridge Amplifier circuit diagram

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 I 2C-bus control Hardware programmable I2C-bus address Can 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 V DC-load detection: open, short and present AC-load (tweeter) detection Programmable clip detection: 1 % or 3 % Programmable thermal protection pre-warning Independent short-circuit protection per channel Low gain line driver mode (20 dB) Loss-of-ground and open VP safe All outputs protected from short-circuit to ground, to VP, or across the load All p...

Features: HIGH OUTPUT POWER CAPABILITY: 2 x 35W max./4Ω 2 x 32W EIAJ/4Ω 2 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 DISTORTION LOW OUTPUT NOISE ST-BY FUNCTION MUTE FUNCTION AUTO-MUTE AT MIN. SUPPLY VOLTAGE DETECTION LOW EXTERNAL COMPONENT COUNT – INTERNALLY FIXED GAIN (32dB) – NO EXTERNAL COMPENSATION – NO BOOTSTRAP CAPACITORS ADDITIONAL MONO INPUT OUTPUT AC/DC SHORT CIRCUIT TO GND AND TO VS VERY INDUCTIVE LOADS OVERRATING CHIP TEMPERATURE WITH SOFT THERMAL LIMITER Circuit Diagram: 2 x 32W DUAL BRIDGE CAR RADIO AMPLIFIER

Circuit Diagram: 4 x 22W FOUR BRIDGE CHANNELS CAR RADIO AMPLIFIER TDA7382

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

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: Circuit diagram for 14 + 14W STEREO AMPLIFIER WITH MUTE & ST-BY

Features WIDE SUPPLY VOLTAGE RANGE (6V -18V) MINIMUM EXTERNAL COMPONENTS NO SVR CAPACITOR NO BOOTSTRAP NO BOUCHEROT CELLS INTERNALLY FIXED GAIN STAND-BY & MUTE FUNCTIONS SHORT CIRCUIT PROTECTION THERMAL OVERLOAD PROTECTION DESCRIPTION The TDA7266B is a dual bridge amplifier specially designed for TV and Portable Radio applications Circuit Diagram Circuit Diagram 10+10W DUAL BRIDGE AMPLIFIER Layout

Features: WIDE SUPPLY VOLTAGE RANGE (3-18V) MINIMUM EXTERNAL COMPONENTS NO SWR CAPACITOR NO BOOTSTRAP NO BOUCHEROT CELLS INTERNALLY FIXED GAIN STAND-BY & MUTE FUNCTIONS SHORT CIRCUIT PROTECTION THERMAL OVERLOAD PROTECTIO Circuit Diagram: TDA7266 layout Circuit Diagram 7+7W DUAL BRIDGE AMPLIFIER

Features WIDE SUPPLY VOLTAGE RANGE (UP TO  50V ABS MAX.) SPLIT SUPPLY HIGH OUTPUT POWER:  25 + 25W @ THD =10%, RL = 8Ω, VS = +20V NO POP AT TURN-ON/OFF MUTE (POP FREE) STAND-BY FEATURE (LOW IQ) FEW EXTERNAL COMPONENTS SHORT CIRCUIT PROTECTION THERMAL OVERLOAD PROTECTION Circuit Diagram 25 + 25W STEREO AMPLIFIER WITH MUTE/ST-BY Layout: PCB layout

12 +12W STEREO AMPLIFIER WITH MUTING

Circuit diagram TDA7262 20+20W STEREO AMPLIFIER WITH STAND-BY

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: Circuit Diagram for 8W AMPLIFIER WITH MUTING

Features: WIDESUPPLY VOLTAGE RANGE : 20 TO 90 V  (± 10 to ± 45 V) VERY LOW DISTORTION AUTOMATIC QUIESCENT CURRENT CONTROL FOR THE POWER TRANSISTORS  WITHOUT TEMPERATURE  SENSE  ELEMENTS OVERLOAD CURRENT PROTECTION FOR THE POWER TRANSISTORS MUTE/STAND-BY FUNCTIONS LOW POWER CONSUMPTION OUTPUT 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: Circuit diagram for 60 W HI-FI DUAL AUDIO DRIVER

Features MUTING AND STAND-BY FUNCTIONS VOLTAGE RANGE UP TO 30V HIGH SUPPLY VOLTAGE REJECTION SVR TYP = 50dB (f = 100Hz) MUSIC POWER = 12W (RL = 4Ω, d = 10%) PROTECTION AGAINST CHIP OVER TEMPERATURE General 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 Circuit diagram for 5W AUDIO 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 V No external components required Very low quiescent current Fixed integrated gain of 26 dB, floating differential input Flexibility in use − mono BTL as well as stereo Small dimension of encapsulation (see package design example). Circuit Diagram Circuit diagram Low voltage mono/stereo power amplifier