AmplifierCircuits: 2x10W

Showing posts with label 2x10W. Show all posts

2/10/2015

February 10, 2015

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 Audio Amplifier 2x10w

TDA2005 layout:

PCB TDA2005 Audio Amplifier 2x10w

Layout TDA2005 Audio Amplifier 2x10w

11/02/2014

November 02, 2014

Auto Radio Amplifier Circuit

„ Features

Dual 10 W audio power amplifier
Built-in muting circuit
Incorporating protection circuit
Low frequency amplifier
SIL-12 pin plastic package (Power-type with fin)

Circuit Diagram:

Auto Radio Amplifier Circuit

10/07/2014

October 07, 2014

10 + 10W Stereo Amplifier for car radio

General Description:

The TDA2004A is a class B dual audio power amplifier in MULTIWATT package specifically designedforcar radioapplications; stereoamplifiersare easily designed using this device that provides a high current capability (up to 3.5 A) and that can drive very low impedance loads (down to 1.6Ω ).

Circuit diagram:

Circuit diagram for 10 + 10W Stereo Amplifier for car radio

Datasheet for TDA2004A: Download

9/30/2014

September 30, 2014

Power stage 2 x 10 or 1 x 20 W class-D audio amplifier

General Description:

The TDA8928J is a switching power stage for a high efficiency class-D audio power amplifier system. With this power stage a compact 2 × 10 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:

Power stage 2 x 10 or 1 x 20 W class-D audio amplifier

Datasheet for TDA8928: Download

9/17/2014

September 17, 2014

10 + 10W stereo amplifier with mute and st-by

Circuit Diagram:

10 + 10W stereo amplifier with mute and st-by

Datasheet for TDA7269: Download

9/02/2014

September 02, 2014

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

September 02, 2014

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

8/15/2014

August 15, 2014

2.1 channel high-efficiency digital audio system

Features
 Wide supply voltage range (10 V - 36 V)
 Three power output configurations
– 2 x 10 W + 1 x 20 W
– 2 x 20 W
– 1 x 40 W
 Thermal protection
 Under-voltage protection
 Short-circuit protection
 PowerSO-36 slug down package
 2.1 channels of 24-bit DDX®
 100-dB SNR and dynamic range
 32 kHz to 192 kHz input sample rates
 Digital gain/attenuation +48 dB to -80 dB in
0.5-dB steps
 Four 28-bit user programmable biquads (EQ)
per channel
 I²C control
 2-channel I²S input data interface
 Individual channel and master gain/attenuation
 Individual channel and master soft and hard
mute
 Individual channel volume and EQ bypass
 DDX® POP free operation
 Bass/treble tone control
 Dual independent programmable
limiters/compressors
 AutoModes™ settings for:
– 32 preset EQ curves
– 15 preset crossover settings
– Auto volume controlled loudness
– 3 preset volume curves
– 2 preset anti-clipping modes
– Preset night-time listening mode
– Preset TV AGC
 Input and output channel mapping
 AM noise-reduction and PWM frequency
shifting modes
 Soft volume update and muting
 Auto zero detect and invalid input detect
muting selectable DDX® ternary or binary
PWM output plus variable PWM speeds
 Selectable de-emphasis
 Post-EQ user programmable mix with default
2.1 bass-management settings
 Variable max power correction for lower
full-power THD
 Four output routing configurations
 Selectable clock input ratio
 96 kHz internal processing sample rate, 24 to
28-bit precision
 Video application supports 576 * fs input mode

Circuit Diagram