The HA1394 dual audio power amplifier is specifically designed for audio outputs in modular stereos and mutiplex sound TV's. This HItachi amplifier can deliveri 8.2w per ch when Vcc=25V.
Circuit Diagram:
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| Dual 6 to 8 watt audio power amplifier |
11/13/2014
Description:
The LM380 is a power audio amplifier for consumer applications. In order to hold system cost to a minimum, gain is internally fixed at 34 dB. A unique input stage allows ground referenced input signals. The output automatically selfcenters to one-half the supply voltage.
Circuit diagram: |
| 2.5W Audio Power Amplifier |
General Description:
The TDA1554Q is an integrated class-B output amplifier in a 17-lead single-in-line (SIL) plastic power package.The circuit contains 4 x 11 W single-ended or 2 x 22 W bridge amplifiers. The device is primarily developed for car radio applications.
Circuit Diagram:
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| circuit diagram 2 x 22 W audio power amplifier |
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| circuit diagram 4 x 11 W audio power amplifier |
Datasheet for TDA1554Q: Download
11/11/2014
General Description:
The TA8211AH is dual audio power amplifier for consumer applications. This IC provides an output power of 6 watts per channel (at VCC = 20 V, f = 1 kHz, THD = 10%, RL = 8 Ω).
It is suitable for power amplifier of TV and home stereo.
Features:
- High output power: Pout = 6 W/channel (Typ.)
- (VCC = 20 V, RL = 8 Ω, f = 1 kHz, THD = 10%)
- Low noise: Vno = 0.14 mVrms (Typ.)
- (VCC = 28 V, RL = 8 Ω, GV = 34dB, Rg = 10 kΩ,
- BW = 20 Hz~20 kHz)
- Very few external parts
- Built in thermal shut down protector circuit
- Operating supply voltage range: VCC (opr) = 10~30 V (Ta = 25°C)
Circuit Diagram:
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| Circuit diagram for Dual Audio Power Amplifier |
General Description:
The TDA1515BQ is a monolithic integrated class-B output amplifier in a 13-lead single in-line (SIL) plastic power package. The device is primarily developed for car radio applications, and also to drive low-impedance loads (down to 1,6 Ω). At a supply voltage VP = 14,4 V, an output power of 24 W can be delivered into a 4 Ω BTL (Bridge Tied Load), or, when used as stereo amplifier, it delivers 2 × 12 W into 2 Ω or 2 × 7 W into 4 Ω.
Features:
- flexibility in use − mono BTL as well as stereo
- high output power
- low offset voltage at the output (important for BTL)
- large usable gain variation
- very good ripple rejection
- internal limited bandwidth for high frequencies
- low stand-by current possibility (typ. 1 µA), to simplify required switches; TTL drive possible
- low number and small sized external components
- high reliability.
- he following currently required protections are incorporated in the circuit. These protections also have positive influence
- on reliability in the applications.
- load dump protection
- a.c. and d.c. short-circuit safe to ground up to VP = 18 V
- thermal protection
- speaker protection in bridge configuration
- SOAR protection
- outputs short-circuit safe to ground in BTL
- reverse polarity safe.
Circuit Diagram:
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| Circuit diagram for 24 W BTL or 2 x 12 W stereo car radio power amplifier |
Datasheet for TDA1515BQ
General Description:
Features:
High Output Power
Low Transient Noise at Power Supplu Switch ON
Mirror Image Pin Configurations
Protection Circuits are Provided for the Following:
Load Dump Protection
Thermal Shut–Down Protection
Overvoltage Protection
Output Terminal Short–Circuit Protection
Pinout:
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| Audio Power Amplifier 5.8W |
11/10/2014
General Description:
The CS44130 is a high-efficiency power stage for digital Class-D amplifiers designed to recieve PWM signals from a modulator such as the CS44800/600. The power stage outputs can be configured as four half-bridge channels, two half-bridge channels and one full-bridge channel, two full-bridge channels, or one parallel full-bridge channel.
Features:
Configurable Outputs (10% THD+N)
– 2 x 30 W into 8 Ω, Full-Bridge
– 1 x 60 W into 4 Ω, Parallel Full-Bridge
– 4 x 15 W into 4 Ω, Half-Bridge
– 2 x 15 W into 4 Ω, Half-Bridge + 1 x 30 W
into 8 Ω, Full-Bridge
Space-Efficient, Thermally-Enhanced QFN
Package
PWM Popguard® Technology for Quiet Startup
> 100 dB Dynamic Range - System Level
< 0.12% THD+N @ 1 W - System Level
Built-In Protection with Error Reporting
– Over-Current
– Thermal Warning
– Thermal Fault
– Under-Voltage
Single (+10.8 V to +21 V) High Voltage Supply
High Efficiency (90%)
Low RDS(ON)
Low Quiescent Current
Low Power Standby Mode
Common Applications
Digital Televisions
MP3 Docking Stations
Mini Shelf Systems
Networked Audio/POE Systems
Desktop Speakers
Circuit Diagram:
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| 60 W Quad Half-Bridge Digital Amplifier |
Datasheet for CS44130: Download
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