Ic Pin Function Description - Sony MDS-DRE1 Service Manual

6-24. IC PIN FUNCTION DESCRIPTION

• BD BOARD IC101 CXA1981AR (RF AMP, FOCUS/TRACKING ERROR AMP)
Pin No. Pin Name
1 VC
2 to 7 A to F
8 FI
9 FO
10 PD
11 APCREF
12 TEMPI
13 GND
14 AAPC
15 DAPC
TEMPR
16
17 XRST
18 SWDT
19 SCLK
20 XLAT
21 VREF
22 TENV
23 THLD
24 VCC
25 TFIL
26 TE
27 TLB
28 CSLED
29 SE
30 ADFM
31 ADIN
32 ADAGC
33 ADFG
34 AUX
35 FE
36 FLB
37 ABCD
38 BOTM
39 PEAK
40 RFAGC
41 RF
42 ISET
43 AGCI
44 RFO
45 MORFI
46 MORFO
47 I
48 J
I/O
O Middle point voltage (+2.5V) generation output terminal
I
Signal input from the optical pick-up detector
I
Operational input for the F signal
O
Operational output for the F signal
I
Light amount monitor input from the optical pick-up block laser diode
I
Reference voltage input terminal for setting laser power
I
Connected to the temperature sensor
— Ground terminal
O
Laser amplifier output terminal to the automatic power control circuit
O
Not used (open)
O
Output terminal for a temperature sensor reference voltage
I
Reset signal input from the system controller (IC101) "L": reset
I
Writing serial data input from the system controller (IC101)
I
Serial data transfer clock signal input from the system controller (IC101)
I Serial data latch pulse signal input from the system controller (IC101)
O
Reference voltage output terminal Not used (open)
O
Not used (open)
I
Connected to the external capacitor for set the internal circuit
— Power supply terminal (+5V)
I
Connected to the external capacitor for set the internal circuit
O
Tracking error signal output to the CXD2535CR (IC121)
I Adder signal input of the tracking error
I
Connected to the external capacitor for low-pass filter of the sled error signal
O
Sled error signal output to the CXD2535CR (IC121)
O
FM signal output of the ADIP
I Receives a ADIP FM signal in AC coupling
I
Connected to the external capacitor for ADIP AGC
ADIP duplex signal (22.05 kHz ± 1 kHz) output to the CXD2535CR (IC121)
O
O
Auxiliary signal (I signal/temperature signal) output to the CXD2535CR (IC121)
3
O Focus error signal output to the CXD2535CR (IC121)
I
Adder signal input of the focus error Not used (open)
O
Light amount signal (ABCD) output to the CXD2535CR (IC121)
O
Light amount signal (RF/ABCD) bottom hold output to the CXD2535CR (IC121)
O
Light amount signal (RF/ABCD) peak hold output to the CXD2535CR (IC121)
I
Connected to the external capacitor for RF auto gain control circuit
O
Playback EFM RF signal output to the CXD2535CR (IC121)
I Connected to the external capacitor for set the internal circuit 22 kHz, BPF center frequency
I
Receives a RF signal in AC coupling
O
RF signal output terminal
I
Receives a MO RF signal in AC coupling
O MO RF signal output terminal
I
I-V converted RF signal I input from the optical pick-up block detector
I
I-V converted RF signal J input from the optical pick-up block detector
Function
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