Sharp LC-32LE440U, Service Manual

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1.3. U6102 (YAMAHA YDA175)
Features
・
Supply Voltage Range VDDP 5V*1) to 18V
・ Input Digital Audio Interface (Stereo)
Sampling Frequency: 32kHz, 44.1kHz, 48kHz
Left-justified, MSB first, 1-bit delay, Digital Audio Data 24-bits
・
Max. Instantaneous Output 15W×2ch (VDDP=15V, RL=8 Ω , THD+N=10%)
10W×2ch (VDDP=12V, RL=8 Ω , THD+N=10%)
10W×2ch (VDDP=12V, RL=6 Ω , THD+N=10%)
・
Max. Continuous Output 15W*2)×2ch (VDDP=15V, RL=8 Ω , Ta=70 ºC, 4-layer Board)
10W*2)×2ch (VDDP=12V, RL=8 Ω , Ta=70 ºC, 4-layer Board)
10W*2)×2ch (VDDP=12V, RL=6 Ω , Ta=70 ºC, 4-layer Board) *TBD
・
Distortion Ratio (THD+N) 0.05% (VDDP=12V, RL=8 Ω , Po=4.5W, 1kHz)
・ Residual Noise 50µVrms (VDDP=12V, RL=8 Ω , A-Weighted Filter)
・
S/N Ratio 105dB (VDDP=12V, RL=8 Ω , A-Weighted Filter)
・ Efficiency 92% (VDDP=12V, RL=8 Ω , Po=10W)
・
Channel Separation 80 dB (VDDP=12V, RL=8 Ω , 1kHz)
・
Power Limit Function (15W, RL=8 Ω , min, THD+N=10%)
・ Output Mute Function (Quick Mute/Quick Start)
・
Sleep Function
・ Pop Noise Reduction Function
・
Overcurrent Protection Function (OCP)
・
Over Temperature Protection Function (OTP)
・ Under Voltage Lockout (UVLO)
・
DC Detection Function (DCDET)
・ Clock Detection Function (CKDET)
・
Package Lead-free 32-pin Plastic QFN (Exposed die pad) : YDA175-QZ
*1: When operating below 8V (VDDP), the speaker impedance must be 8 Ω or higher.
*2: These values are based on
evaluations on a Yamaha's PCB board implementation.
1.4. U1101 (TRS3221ECDBR SSOP16)
FEATURES
· ESD Protection for RS-232 Pins
– ±15-kV Human-Body Model (HBM)
– ±8 kV (IEC 61000-4-2, Contact Discharge)
– ±15 kV (IEC 61000-4-2, Air-Gap Discharge)
· Meets or Exceeds the Requirements of
TIA/EIA-232-F and ITU v.28 Standards