Sanyo LCD-32XR10F Service Manual page 24

performance
 M iscellaneous

· E mbedded 8-bit MCU
· C lock generation from a single 24MHz crystal
· S upports I2C interface with bypass mode
· O perating voltage: 3.3V and 1.2V
· 4 8-pin LQFP package
3、 Audio power amplifier RENESAS R2A15112
R2A15112FP is a Digital Power Amplifier IC developed for TV.
R2A15112FP has a maximum power of 15W(typ) × 2ch.
(VD = 24V,THD = 1%, SE) at a 4 Ω load.
It is possible to replace a conventional analog amplifier
with a digital amplifier easily.
●Maximum power out put (No external heat sink)
(note) These apply when the thermal pad is soldered to
the printed-circuit board directly.
Recommended Power Condition
SE operation mode :15Wx2ch(VD=24V,4Ω load,THD+N:1%）
BTL operation mode:30Wx1ch(VD=21V,8Ω load,THD+N:10%）
●Highly efficient, low noise, and low distortion
●Popless
●Built-in protection - Overcurrent, overheat, and undervoltage
●Built-in Mute and Standby function
●The gain can be changed to four settings by two terminals.
●Power supply voltage : 11V to 25V
●Speaker Impedance : from 4 to 8Ω
IN1
IN2
CBIAS
ROSC
MUTEL
STBYL
GAIN1 GAIN2
A
SE/BTL
A
Oscillator
Control
Logic
Under Voltage
Detection
PROT
PWM
Gen.
PWM
Gen.
Over Current
Detection
Over Temp.
Detection
GND