— 25 —
4-9.
IC PIN FUNCTIONS
• IC101 DIGITAL SIGNAL PROCESSOR (CXD2545Q)
Pin Name
SRON
SRDR
SFON
TFDR
TRON
TRDR
TFON
FFDR
FRON
FRDR
FFON
VCOO
VCOI
TEST
DVss
TES2
TES3
PDO
VPCO
VCKI
AVD2
IGEN
AVS2
ADIO
RFC
RFDC
TE
SE
FE
VC
AVD1
Pin No.
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
40
I/O
O
O
O
O
O
O
O
O
O
O
O
O
I
I
—
I
I
O
O
I
—
I
—
I
O
I
I
I
I
I
O
I
O
I
—
I
I
I
O
—
Function
Sled drive output (Not used)
Sled drive output
Sled drive output (Not used)
Tracking drive output
Tracking drive output (Not used)
Tracking drive output
Tracking drive output (Not used)
Focus drive output
Focus drive output (Not used)
Focus drive output
Focus drive output (Not used)
VCO output for analog EFM PLL (Not used)
VCO input for analog EFM PLL (Ground)
TEST pin connected normally to ground
Digital ground
TEST pin connected normally to ground
TEST pin connected normally to ground
Charge-pump output for analog EFM PLL (Not used)
Charge-pump output for variable pitch PLL (Not used)
Clock input from variable pitch external VCO (Ground)
Analog power supply
Power supply pin for operational amplifiers
Analog ground
(Not used)
(Not used)
RF signal input
Tracking error signal input
Sled error signal input
Focus error signal input
Center voltage input pin
Filter output for master PLL
Filter input for master PLL
Charge-pump output for master PLL
Control voltage input for master VCO
Analog ground
EFM signal input
Asymmetry circuit constant current input
Asymmetry comparate voltage input
EFM full swing output
Analog power supply
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