LG BP440K Manual De Servicio página 90

PIN NO. SYMBOL
E2 INE
E1 INF
D1 ING
D2 INH
F4 MPXOUT1
F2 MPXOUT2
F1 MPXOUT3
K3 FEOSCEN
G2 RFIN
H2 RFIN2
G1 RFIP
H1 RFIP2
J3 TLO
T2 FETRAYIN_
U4 FETRAYOUT_
P2 FETRAYPWM
A2 TRINA
B3 TRINB
A1 TRINC
B2 TRIND
J2 TRO
H3 V14
E5 VDAC0
B4 FVREF
C6 VWDC2O
A4 VWDC3O
TYPE
Analog Input Input of Sub-Beam Signal (E)
Analog Input Input of Sub-Beam Signal (F)
Analog Input Input of Sub-Beam Signal (G)
Analog Input Input of Sub-Beam Signal (H)
Multiplexer Output 1 for Signal Monitoring.
The pin is not allowed to pull-up in circuit layout.
Analog Output
Alternate function : Internal monitored signal output / General
output.
Multiplexer Output 2 for Signal Monitoring. T
he pin is not allowed to pull-up in circuit layout.
Analog Output
Alternate function : Internal monitored signal output / General
output.
Multiplexer Output 3 for Signal Monitoring.
The pin is not allowed to pull-up in circuit layout.
Analog Output
Alternate function : Internal monitored signal output / General
output.
3.3V LVTTL I/O,
5V-tolerance, High frequency modulation enable signal output, or LDD serial
Slow slew, interface CLK or 12C SCL.
2, 4, 6, 8 mA PDR, The pin is spike-free at power-on stage.
75K pull-up (3.3 V)
Analog Input Differential Input of AC Coupling RF SUM Signal (Negative)
Analog Input Differential Input of AC Coupling RF SUM Signal (Negative)
Analog Input Differential Input of AC Coupling RF SUM Signal (Positive)
Analog Input Differential Input of AC Coupling RF SUM Signal (Positive)
Analog Output Tilt servo output
3.3V LVTTL I/O, Tray_is_in Input. A Logical Low Indicates the Tray is IN. Feed-
5V-tolerance, back Flag is from Tray Connector.
6 mA, The pin is spike-free at power-on stage.
75K pull-up (3.3 V) Alternate function : General IO.
3.3V LVTTL I/O, Tray_is_out Input. A Logical Low Indicates the Tray is OUT.
5V-tolerance, Feedback Flag is from Tray Connector.
6 mA, The pin is spike-free at power-on stage.
75K pull-up (3.3 V) Alternate function : General IO.
Analog Output Tray DAC / PWM control output. Controlled by microP
Analog Input Input of Tracking Signal (A)
Analog Input Input of Tracking Signal (B)
Analog Input Input of Tracking Signal (C)
Analog Input Input of Tracking Signal (D)
Tracking servo output.
Analog Output
PDM output of tracking servo compensator.
Analog Output Output of voltage eference (1.4V)
Analog Output Output of General DAC
Analog Output Output of Voltage Reference
Analog Output Output Voltage 2 of Laser Diode Control in APC
Analog Output Output Voltage 3 of Laser Diode Control in APC
4-7
DESCRIPTION