AmplifierCircuits

TDA7490   g eneral description: The TDA7490 is a dual audio class D amplifier assembled in Flexiwatt 25 package; it is specially designed for high efficiency application mainly for TV and Home Stereo sets. TDA7490 features:  25W + 25W OUTPUT POWER: RL = 8Ω/4Ω; THD = 10% HIGH EFFICIENCY WIDE SUPPLY VOLTAGE RANGE (FROM ±10 TO ±25V) SPLIT SUPPLY TURN OFF/ON POP FREE ST-BY AND MUTE FEATURES SHORT CIRCUIT PROTECTION ACROSS THE LOAD THERMAL OVERLOAD PROTECTION EXTERNALLY SINCHRONIZABLE BRIDGE CONFIGURATION TDA7490 amplifier diagram, circuits: TDA7490 Audio Amplifier 2x25W TDA7490 layout, pcb: TDA7490 layout, pcb TDA7490 layout, pcb

TDA7490   g eneral description: The TDA7490 is a dual audio class D amplifier assembled in Flexiwatt 25 package; it is specially designed for high efficiency application mainly for TV and Home Stereo sets.   TDA7490 Audio Amplifier 2 x 25W / 1 x 50W TDA7490  features : 25W + 25W OUTPUT POWER: RL = 8Ω/4Ω; THD = 10% HIGH EFFICIENCY WIDE SUPPLY VOLTAGE RANGE (FROM ±10 TO ±25V) SPLIT SUPPLY TURN OFF/ON POP FREE ST-BY AND MUTE FEATURES SHORT CIRCUIT PROTECTION ACROSS THE LOAD THERMAL OVERLOAD PROTECTION EXTERNALLY SINCHRONIZABLE BRIDGE CONFIGURATION TDA7490  sterio circuit diagram : TDA7490 Audio Amplifier 2 x 25W / 1 x 50W circuit diagram TDA7490  mono circuit diagram : TDA7490 Audio Amplifier 2 x 25W / 1 x 50W mono circuit diagram TDA7490  sterio circuit pcb : TDA 7490 pcb layout 

Features: „ Wide supply voltage range (up to ±22.5 V) „ Split supply „ High output power  25 W + 25 W into 8 Ω  with VS = ±20 V and THD = 10% „ No “pop” at turn on/off  „ Mute (“pop”-free)  „ Standby feature (low Iq)  „ Few external components „ Short-circuit protection  „ Thermal overload protection Description: The TDA7264 is class-AB dual audio power   amplifier assembled in a Multiwatt package. It is specially designed for high-quality sound  applications such as hi-fi music centers and  stereo TV sets. Circuit Diagram: Circuit diagram for 25 W + 25 W stereo amplifier with mute and standby Datasheet for TDA7264:   Download

GENERAL DESCRIPTION: The AD199x is a two channel Bridge Tied Load (BTL)   switching audio power amplifier with integrated ∑∆ modulator.   The modulator accepts a 1Vrms input signal (maximum power)   and generates a switching waveform to drive speakers directly.   One of the two modulators can control both output stages   providing twice the current for single-channel applications. A digital, microcontroller-compatible interface provides control of  reset, mute and PGA gain as well as output signals for thermal  and over-current error conditions. The output stage can operate   from supply voltages ranging from 8V to 20V. The analog   modulator and digital logic operate from a 5V supply.  AD1990: 5Wx2 (10Wx1)  AD1992: 10Wx2 (20Wx1)  AD1994: 25Wx2 (50Wx1)  AD1996: 40Wx2 (80Wx1)  FEATURES: Integrated Stereo Modulator & Power Stage  0.005% THD+N  101.5dB Dynamic Range  PSRR >...

FEATURES: High efficiency (> 94 %) Operating voltage from ±7.5 V to ±30 V Very low quiescent current High output power Diagnostic output Usable as a stereo Single-Ended (SE) amplifier Electrostatic discharge protection (pin to pin) No heatsink required. APPLICATIONS: Television sets Home-sound sets Multimedia systems All mains fed audio systems. GENERAL DESCRIPTION: The TDA8925 is a switching power stage for a high  efficiency class-D audio power amplifier system.  With this power stage a compact 2 × 15 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: Circuit diagram for Power stage 2 x 15 to 25 W class-D

Features High output power capability: 2 x 40 W max./ 4  2 x 35 W/4  EIAJ 2 x 25 W/4  (14.4 V, 1 kHz, 10 %) 2 x 25 W/ 2 (14.4 V, 1 kHz, 10 %) Differential inputs Minimum external components count Internally fixed gain (26 db) Mute function (cmos compatible) Automute at minimum supply voltage detection Standby function No audible pop during mute and standby  operations Clipping detector with programmable distortion  threshold short circuit (out to ground, out to supply  voltage, across the load) overrating chip temperature with soft  thermal limiter load dump voltage fortuitous open ground  loudspeaker dc current ESD Description The TDA7376B is a new technology dual bridge  audio amplifier in Multiwatt 15 package designed  for car radio applications. Thanks to the fully  complementary PNP/NPN output stage  configuration the TDA7376B delivers a rail-to-rail  voltage swing with no need of bootstrap  capaci...

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

FEATURES Low dissipation due to switching from Single-Ended  (SE) to Bridge-Tied Load (BTL) mode Differential inputs with high Common Mode Rejection  Ratio (CMRR) Mute/standby/operating (mode select pin) Load dump protection circuit Short-circuit safe to ground, to supply voltage and  across load Loudspeaker protection circuit Offset detection for each channel Device switches to single-ended operation at excessive  junction temperatures Thermal protection at high junction temperature (170°C) Clip detection at THD = 2.5 % Diagnostic information  (clip/protection/prewarning/offset). GENERAL DESCRIPTION The TDA1564 is a monolithic power amplifier in a 17-lead  single-in-line (SIL) plastic power package. It contains two  identical 25 W amplifiers. The dissipation is minimized by  switching from SE to BTL mode, only when a higher output  voltage swing is needed. The device is primarily  developed for car radi...

FEATURES Low dissipation due to switching from Single-Ended  (SE) to Bridge-Tied Load (BTL) mode Differential inputs with high Common Mode Rejection  Ratio (CMRR) Mute/standby/operating (mode select pin) Zero crossing mute circuit Load dump protection circuit Short-circuit safe to ground, to supply voltage and  across load Loudspeaker protection circuit Device switches to SE operation at excessive junction  temperatures Thermal protection at high junction temperature (170°C) Diagnostic information (clip detection and  protection/temperature) Clipping information can be selected between THD = 2.5% or 10% GENERAL DESCRIPTION The TDA1563Q is a monolithic power amplifier in a  17-lead DIL-bent-SIL plastic power package. It contains  two identical 25 W amplifiers. The dissipation is minimized  by switching from SE to BTL mode when a higher output  voltage swing is needed. The device is primarily  developed ...