Ic Pin Functions; Ic101 Digital Signal Processor (Cxd2545Q)/Bd Board - Sony MCE-K700 Service Manual

6-10. IC PIN FUNCTIONS

• IC101 DIGITAL SIGNAL PROCESSOR (CXD2545Q)/BD board

Pin No. Pin Name
1 SRON
2 SRDR
3 SFON
4 TFDR
5 TRON
6 TRDR
7 TFON
8 FFDR
9 FRON
10 FRDR
11 FFON
12 VCOO
13 VCOI
14 TEST
15 DV
SS
16 TES2
17 TES3
18 PDO
19
VPCO
20 VCKI
21 AVD2
22 IGEN
23 AVS2
24 ADIO
25 RFC
26 RFDC
27 TE
28 SE
29 FE
30 VC
31 FILO
32 FILI
33 PCO
34 CLTV
35 AVS1
36 RFAC
37
BIAS
38 ASYI
39 ASYO
40 AVD1
• Abbreviation
EFM : Eight to Fourteen Modulation
PLL : Phase Locked Loop
VCO : Voltage Controlled Oscillator
I/O
O Sled drive output (Not used)
O Sled drive output
O
Sled drive output (Not used)
O Tracking drive output
O Tracking drive output (Not used)
O Tracking drive output
O Tracking drive output (Not used)
O Focus drive output
O Focus drive output (Not used)
O Focus drive output
O Focus drive output (Not used)
O VCO output for analog EFM PLL (Not used)
I VCO output for analog EFM PLL (Ground)
I TEST pin connected normally to Ground
– Digital Ground
I TEST pin connected normally to Ground
I TEST pin connected normally to Ground
O Charge-pump output for analog EFM PLL (Not used)
O Charge-pump output for variable pitch PLL (Not used)
I Clock input from variable pitch external VCO (Ground)
– Analog power supply
I Power supply pin for operational amplifiers
– Analog Ground
I (Not used)
O (Not used)
I RF signal input
I Tracking error signal input
I Sled error signal input
I Focus error signal input
I Center voltage input pin
O
Filter output for master PLL
I Filter input for master PLL
O Charge-pump output for master PLL
I
Control voltage input for master VCO
– Analog Ground
I EFM signal input
I Asymmetry circuit constant current input
I Asymmetry comparate voltage input
O EFM full swing output
– Analog power supply
— 55 —
Function