37
Pin
Numbers
Symbol
Type
Description
24 RRF/WRF
Analog
Output
(1). Output of Read RF (RRF) Signal
(2). Output of Write RF (WRF) Signal
26
WRFSUM
Analog Input
Input of Write RF (WRF) Summing Signal to ROPC Block
27
ROPCO
Analog Output
Output of Amplified B-Level of Write RF Signal
28 ROPCC Analog
Input
Vin(-) of Amplifier for Sampled B-Level of WRF Signal
125 H11T
Digital Input (TTL),
SMT
S/H Control Pulse of WRF Signal
ATIP (Absolute Time In Pre-groove)
81
AGC1C
Analog Output
External Capacitor Connection for AGC1 in ATIP Block
82
AGC2C
Analog Output
External Capacitor Connection for AGC2 in ATIP Block
83
AGC3C
Analog Output
External Capacitor Connection for AGC3 in ATIP Block
85
ATFM
Analog Output
Output of Analog Wobble Signal
116 ATFG
Digital Output
(TTL), 4mA Driving
Digital Output of Wobble Signal after Slicing
114 WBLCLK
Digital Input (TTL),
SMT
External Clock Input for Wobble BPF (SCF)
APC (Auto Power Control for Laser)
54
FPDO
Analog Input
Input of Laser Monitor Voltage
65
FPDOLP
Analog Input
Input of Laser Monitor Voltage after Low Pass Filtering
52
FVREF
Analog Input
Reference Voltage of APC Loops
128
RLDON
Digital Input (TTL) Laser Diode Control for Read Mode
127
WLDON
Digital Input (TTL) Laser Diode Control for Write Mode
112 RFPDSH
Digital Input (TTL),
SMT
S/H Control Pulse for Read APC Mode
111 WFPDSH
Digital Input (TTL),
SMT
S/H Control Pulse for Write APC Mode
55 RREF Analog
I/O
(1). Input of Power Setting Voltage for Read APC; (2). Output of
Read APC Reference Voltage Generated by Built -in DAC
59 VRDCN
Analog
Input
Vin(-) of Midcourse Amplifier for Read APC Loop
58
VRDC
Analog Output
Midcourse Output of Laser Diode Controlling in Read Mode
63
VRDCO
Analog Output
Output Voltage of Laser Diode Controlling in Read APC
53 WREF1 Analog
I/O
(1). Input of Power Setting Voltage for Write APC 1; (2). Output of
Write APC Reference Voltage Generated by Built-in DAC
57 VWDC1N
Analog
Input
Vin(-) of Midcourse Amplifier for Write APC 1
56
VWDC1
Analog Output
Midcourse Output of Laser Diode Controlling in Write APC
62
VWDC1O
Analog Output
Output Voltage of Laser Diode Controlling in Write APC
61
VWDC2O
Analog Output
Output Voltage 2 of Laser Diode Controlling in Write APC
Reference Voltages & DACs
75
VHAVC
Analog Output
Output of Voltage Reference (2.0V)
78
VREF
Analog Output
Output of Voltage Reference (2.0V)
77
V14
Analog Output
Output of Voltage Reference (1.4V)
76
V28
Analog Output
Output of Voltage Reference (2.8V)
74
VFVREF
Analog Output
Output of Voltage Reference (2.5V~3.0V)
69
VDAC0
Analog I/O
Output of General Purposed 8-Bit DAC (0V ~ 2.0V)
51
VDAC1
Analog Output
Output of General Purposed 10-Bit DAC (0V ~ 4V)
MPXOUT (Multiplexer Circuit for Various Signals) and Testing Interface
68 AUX1 Analog
Input
Auxiliary Input 1 for Signal Monitoring
67 AUX2 Analog
Input
Auxiliary Input 2 for Signal Monitoring
66 AUX3 Analog
Input
Auxiliary Input 3 for Signal Monitoring