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LC-22DV510
LC-24DV510
5. AUDIO AMPLIFIER STAGE WITH AZAD2102(U163, U164)
5.1.General Description
17MB60 uses two 2,5W Class D Mono Audio Amplifers for from 16” to 24” TVs. AZAD2102B is a 2.9 Watts
(max. can offer 3.0 Watts @ Load = 3Ω,THD=10%, AVdd=DVdd=5.5Volt)with high efficiency filter
-free
class-D audio power amplifier in a 1613 mm x 1613 mm wafer chip scale package (WCSP). AZAD2102B uses
Current-switch technology to achieve high performance class-d amplifier that features 0.03% THD, 85%
efficiency, –70 dB PSRR, to improve RF-rectification immunity. AZAD2102B provide a Vibration-Spectrum
modulation clock for PWM Output. This vibration frequency is around 10KHZ shift (+/- 5KHZ of Fpwm).
The advantage of the small size package (WCSP) makes AZAD2102B very suitable for mobile phone and
PDA device application. And the Class-D amplifier structure let AZAD2102B to have highly efficiency
power consumption than Class-AB amplifier. AZAD2102B can shrink the application board, reduce system
cost, and external components.
ESD level protection I/O embedded in AZAD2102B. For general applications, doesn’t need to add extra
ESD protection device (like Varistors) in application system for AZAD2102B’s I/O.
5.2.Features
CMOS Technology
High Efficiency 85%
High PSRR 70dB at 217Hz
Differential OP-amp Input
AZAD2102B provides Vibration-Spectrum Modulation clock for reduce EMI
Provide Mute function(set Mute_B to GND will go into Mute status)
For the input stage AZAD2102B built-in a 10Kohm resistors (Gain setting=29.5dB)
Maximum Battery Life and Minimum Heat
Efficiency With an 8-
Ω Speaker:
3.5 mA Quiescent Current
Output Power at 10% THD
2.85Watts at AVdd=DVdd=5.0Volt, Rload=4Ω
1.45Watts at
AVdd=DVdd=3.6Volt, Rload=4Ω
0.30Watts at AVdd=DVdd=3.0Volt, Rload=4Ω
1.75Watts at AVdd=DVdd=5.5Volt, Rload=8Ω
0.87Watts at AVdd=DVdd=3.6Volt, Rload=8Ω
0.41Watts at AVdd=DVdd=3.0Volt, Rload=8Ω
Eliminate Power on and Power-off “Pop” noise
A Fewer External Components
Optimized PWM Output Stage Eliminates LC Output Filter
Internally generate 290 kHz Switching Frequency to eliminate Capacitor and Resistor
Improve PSRR (–70 dB) and Wide Supply Voltage (3.0 V to 5.5 V)
Fully Differential Design Reduces RF Rectification
This chip has been built-in a very strong ESD protection.
System level ESD 4KV (IEC 61000-4-2 ESD Contact Level)
Wafer Chip Scale Package (WCSP)
TSSOP Package with Exposed Pad
Summary of Contents for LC-22DV510K
Page 19: ...19 LC 22DV510 LC 24DV510 1 1 General Block Diagram 1 1 General Block Diagram ...
Page 27: ...27 LC 22DV510 LC 24DV510 4 4 Frequency response ...
Page 29: ...29 LC 22DV510 LC 24DV510 5 3 Absolute Ratings 5 3 1 Electrical Characteristics ...
Page 30: ...30 LC 22DV510 LC 24DV510 5 3 2 Operating Specifications ...
Page 31: ...31 LC 22DV510 LC 24DV510 5 4 Pinning ...
Page 33: ...33 LC 22DV510 LC 24DV510 6 3 2 Operating Specifications 6 4 Pinning ...
Page 35: ...35 LC 22DV510 LC 24DV510 Ì µ µ ò Ú ĞÉîê ĞÉîé µ º ò Ú ĞÍïêô ĞÍïéô ĞÍêğ µ µ ò ...
Page 48: ...48 LC 22DV510 LC 24DV510 12 4 Pinning 11 4 ...
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Page 65: ...65 LC 22DV510 LC 24DV510 23 3 VGA CN132 22 3 ...
Page 68: ...68 LC 22DV510 LC 24DV510 23 3 Options Options Options 1 Options 2 ...
Page 74: ...74 LC 22DV510 LC 24DV510 4 Hardware Architecture Connector Arrangement ...
Page 75: ...75 LC 22DV510 LC 24DV510 Block Diagram ...
Page 86: ...86 LC 22DV510 LC 24DV510 NOTES ...
Page 100: ...100 LC 22DV510 LC 24DV510 29 PRINTED WIRING BOARD Main Unit PWB Top Side ...
Page 120: ...120 LC 22DV510 LC 24DV510 Notes ...
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