LG GCE 8480B Service Manual page 52

22 FOO
23 TRO
24 PWMOUT
25 DMO
26 FMO
27 FMO2
51 PDMVDD
52 2VREF
53 VREF
54 PDMVSS
Mega Interface (2)
11 EJECT#
12 PLAY#
NC (3)
155 NC
156 NC
157 NC
IPLL VCO Interface (2)
104 IPLLV DD
105 IPLLVSS
EFMPLL VCO Interface (4)
207 EFMPLLV DD Analog power(3.3V) Power supply for EFMPLL circuitry.
208 EFMVCOCIN
1 EFMLPFGND
2 EFMPLLVSS
Audio Output Interface (1)
163 ADGO
Internal Audio DAC Interface (5)
164 AUDACVSS
165 LO
166 DACVREF
167 RO
168 AUDACVDD Analog Power(3.3V) Power supply for internal audio DAC circuitry.
Analog Output Focus servo output. PDM output of focus servo compensator.
Analog Output Tr acking servo output. PDM output of tracking servo
compensator.
Analog Output General purpose PWM output.
Analog Output Disk motor control output. PWM output.
Analog Output Feed motor control. PWM output.
Analog Output Feed motor 2 control. PWM output.
Analog Power(3.3V) Power supply for PDM circuitry.
Analog input 2.90 V reference voltage input.
Analog input 1.45 V reference voltage input.
Ground Ground for PDM circuitry.
3.3V LVTTL I/O, Eject/stop key input, active low.
75K pull-up,
4mA driving
3.3V LVTTL I/O, Play/pause key input, active low.
75K pull-up,
4mA driving
Analog power(3.3V) Power supply for IPLL circuitry.
Ground Ground pin for IPLL circuitry.
Analog input EFMPLL VCO input. For external loop filter connection.
Analog input EFMPLL LPF ground input.
Ground Ground pin for EFMPLL circuitry.
3.3V LV TTL I/O, Digital Audio Output. The signal is the Digital Audio Output
Slew rate, which supplies the IEC-958 digital audio data.
75K pull-up, Alternate function : HRST_ extension selection input during
4mA, 8mA driving power-on stage (PRST falling edge). A logical low input
indicates raw HRST_ is used. A logical high input indicates
extended HRST_ is used.
Ground Ground pin for internal audio DAC circuitry.
Analog Output Left channel of audio.
Analog Output Reference voltage for external audio filter circuit.
Analog Output Right channel of audio.
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