Recording/Playback Pre-/Power Amplifier IC for 3V Microcassette

Features:

• Rec. playback pre-/power amp. IC
• VAS function built-in
• Earphone monitor at recording is possible
• 350mW BTL, OCL power amp. built-in
• Mic. amp built-in
• ALC function built-in
• Rec./Play switching is possible with a single circuit switch

Circuit Diagram:

Circuit Diagram for Recording/Playback Pre-/Power Amplifier IC for 3V Microcassette

60W Hi-Fi Power Amplifier Circuit

Circuit Diagram:

60W Hi-Fi Power Amplifier Circuit

5W Mono channel SEPP audio power amplifier IC

General Overview:
The AN5279 is a monolithic integrated circuit designed for 5.0 W (19 V, 8 Ω) output audio power amplifier. It is a mono channel SEPP IC suitable for TV application.
Features:
• Few external components :
• No Boucherot cells(output C, R)
• No Bootstrap Capacitors
• No Negative Feeback Capacitors
• Built-in muting circuit
• Built-in stand-by circuit
• Built-in various protection circuits
(Load-short, thermal, over-voltage and current)
• High ripple rejection(55 dB)
• Operating voltage range 10 V to 24 V(19 V typ.)

Circuit Diagram:

Circuit diagram for 5W Mono channel SEPP audio power amplifier IC

10W Dual Channel SEPP Power Amplifier

Overview

The AN5277 is a monolithic integrated circuit designed for 10.0 W (26 V, 8 Ω)output audio power amplifier. It is a dual channel SEPP IC suitable for stereo operation in TV application.

Features

• Few external components :
• No Boucherot cells(output C, R)
• No Bootstrap Capacitors
• No Negative Feedback Capacitors
• Built-in muting circuit
• Built-in standby circuit
• Built-in various protection circuits (Load-short, thermal, over-voltage and current)
• High ripple rejection(55 dB)
• Compatible with AN5275, AN5276
• Operating voltage range 10 ∼ 32 V(26 V typ.)

Circuit Diagram:

Circuit Diagram for 10W Dual Channel SEPP Power Amplifier

15W x 2Ch Low Frequency Power Amplifier Circuit for TV

Block Diagram for AN5275:

15W x 2Ch Low Frequency Power Amplifier Circuit for TV

4.4 Watts Audio Power Amp

• Absolute Maximum Ratings: (TA = +25°C unless otherwise specified)
• Supply Voltage, V9−2 . . . . . . . . . . . . . . . . . . . . . . . . . 18V
• Supply Current, Itot . . . . . . . . . . . . . . . . . . . . . . . . . . 1.2A
• Power Dissipation, PT . . . .. . . . . . . . . . . . . . . . . . . . . 4.5W
• Operating Ambient Temperature, Topr . . . . . . . . . . . . −20° to +70°C
• Storage Temperature, Tstg . . . . . . . . . . . . . . . . . . . . −55° to +150°C
• Supply Voltage, VCC . . . . . . . . . . . . . . . . . . . . . . . . . 13V
• Output Power (RL = 4Ω), PO . . . . . . . . . . . . . . .  . . . 4.4W
• Voltage Gain, GV . .  . . . . . . . . . . . . . . . . . . . . . . . . . 45dB

Pin Connection:

Circuit Diagram 4.4 Watts Audio Power Amp  

5Wx2 10Wx2 25Wx2 40Wx2 Dual BTL class-D power audio amplifier AD199x

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 > 65 dB 
• RDS-ON < 0.3 Ω (per transistor) 
• Efficiency > 80% @ 5W/6 Ω 
• EMI Optimized Modulator 
• On-Off-Mute Pop Noise Suppression 
• Short Circuit Protection 
• Over-Temperature Protection 
• Low Cost DMOS Process 

APPLICATIONS:

• Flat Panel Televisions
• Automotive Amplifiers 
• PC Audio Systems 
• Mini Components 

Circuit Diagram:

Dual BTL class-D power audio amplifier  AD199x

Datasheet for AD199x: Download