AmplifierCircuits

20 watt BTL Audio Power Amplifier

FEATURES: Requires very few external components High output power 4 Ω and 2 Ω load impedance Low output offset voltage Fixed gain Diagnostic facility (distortion, short-circuit and  temperature detection) Good ripple rejection Mode select switch (operating, mute and standby) Load dump protection Short-circuit safe to ground, to VP and across the load Low power dissipation in any short-circuit condition Thermally protected Reverse polarity safe Electrostatic discharge protection No switch-on/switch-off plop Flexible leads Low thermal resistance. GENERAL DESCRIPTION: The TDA8563AQ is an integrated class-B output amplifier  in a 13-lead single-in-line (SIL) power package.  It contains 2 × 40 W/2 Ω amplifiers in BTL configuration.  The device is primarily developed for car radio  applications. Circuit Diagram: 2 × 40 W/2 Ω stereo BTL car radio power amplifier

Features: Low Operating Current with 14mA ImprovedDepop Circuitry to Eliminate Turn-on and Turn-off Transients in Outputs  High PSRR 32 Steps VolumeAdjustable by DC Voltage  with Hysteresis 2W per Channel Output Power into 4W Load  at 5V, BTL Mode Two Output ModesAllowable with BTL  and SE Modes Selected by SE/BTL pin Low Current Consumption in Shutdown Mode  (50mA) Short Circuit Protection Power Off Depop Circuit Integration PDIP-16 & SOP-16 PackagesAvailable Lead FreeAvailable (RoHS Compliant) General Description: APA2065 is a monolithic integrated circuit, which  provides precise DC volume control, and a stereo  bridged audio power amplifiers capable of producing  2.7W(2.0W) into 3W withless than10%(1.0%)THD+N.  The attenuatorrange of the volumecontrol inAPA2065  is from 20dB (DC_Vol=0V) to -80dB (DC_Vol=3.54V)  with 32 steps. The advantage of internal gain setting  can be less component...

General Description The TDA1553CQ is a monolithic integrated class-B output  amplifier in a 13-lead plastic DIL-bent-SIL power package.  It contains 2 × 22 W amplifiers in BTL configuration. Circuit Diagram 2 × 22 W stereo BTL car radio power amplifier with loudspeaker protection