LC-22DV240K - Sharp TV Parts Guide (repair manual). Page 20

17MB62 uses two 2,5W Class D Mono Audio Amplifers for from 16” to 24” TVs. 
$=$'% LV D  :DWWV PD[ FDQ RIIHU  :DWWV # / RDG   ȍ7+' 

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.

x

CMOS Technology 

x

High Efficiency 85% 

x

High PSRR 70dB at 217Hz 

x

Differential OP-amp Input 

x

AZAD2102B provides Vibration-Spectrum Modulation clock for reduce EMI 

x

Provide Mute function(set Mute_B to GND will go into Mute status) 

x

For the input stage AZAD2102B built-in a 10Kohm resistors (Gain setting=29.5dB) 

x

Maximum Battery Life and Minimum Heat 

x

Efficiency With an 8-ȍ6SHDNHU

x

3.5 mA Quiescent Current 

x

Output Power at 10% THD 

x

:DWWVDW$9 GG '9 GG 9 RO

W5O

RDG ȍ

x

:DWWVDW$9 GG '9 GG 9 RO

W5O

RDG ȍ

x

:DWWVDW$9 GG '9 GG 9 RO

W5O

RDG ȍ

x

:DWWVDW$9 GG '9 GG 9 RO

W5O

RDG ȍ

x

:DWWVDW$9 GG '9 GG 9 RO

W5O

RDG ȍ

x

0.41Watts at AVdd=DVdd=3.0Volt, 5ORDG ȍ

x

Eliminate Power on and Power-off “Pop” noise 

x

A Fewer External Components 

x

Optimized PWM Output Stage Eliminates LC Output Filter 

x

Internally generate 290 kHz Switching Frequency to eliminate Capacitor and 
Resistor 

x

Improve PSRR (–70 dB) and Wide Supply Voltage (3.0 V to 5.5 V) 

x

Fully Differential Design Reduces RF Rectification 

x

This chip has been built-in a very strong ESD protection. 

x

System level ESD 4KV (IEC 61000-4-2 ESD Contact Level) 

x

Wafer Chip Scale Package (WCSP) 

x

TSSOP Package with Exposed Pad