SM9103M Datasheet, PDF (3/14 Pages) Nippon Precision Circuits Inc – DVDRAM Head Amplifier LSI

SM9103M
PIN DESCRIPTION
Number
Name
I/O¹
Function
1
MODE
Ipd Mode switching/offset correction control input 1
2
WRITE
Ipd Mode switching/offset correction control input 2
3
DGND
– Logic circuit ground. Connect to the analog ground if there is no dedicated pickup or logic ground.
4
DVCC
– Logic circuit supply. Connect to the analog supply if there is no dedicated pickup or logic supply.
5
TEMPO
O Thermal sensor test output. Leave open for normal operation
6
TEMPI
I Thermal sensor test input. Leave open for normal operation
7
T1
I Tracking PD input A
8
T2
I Tracking PD input B
9
T3
I Tracking PD input C
10
T4
I Tracking PD input D
11
F1
I Focus PD input E
12
F2
I Focus PD input F
13
AGND
– Analog circuit ground
14
VREF
I 2.0 V reference voltage input
15
FSUBB
I Focus error signal feedback input
16
FSUB
O Focus error signal output
17
FADDB
I Focus sum signal feedback input
18
FADD
O Focus sum signal output
19
AGND
– Analog circuit ground
20
AVCC
– Analog circuit supply
21
DPDD
O Buffered tracking signal output D for DPD servo
22
DPDC
O Buffered tracking signal output C for DPD servo
23
DPDB
O Buffered tracking signal output B for DPD servo
24
DPDA
O Buffered tracking signal output A for DPD servo
25
DATAN
O Phase-modulated data signal differential inverting output
26
DATAP
O Phase-modulated data signal differential non-inverting output
27
TSUBB
I Tracking push-pull signal feedback input
28
TSUB
O Tracking push-pull signal output
29
CAPAN
O ID data signal differential inverting output
30
CAPAP
O ID data signal differential non-inverting output
31
TADDB
I Tracking PD sum signal feedback input
32
TADD
O Tracking PD sum signal output
33
CALREQ
O Offset correction status/request output
34
SENB
I Serial interface enable input
35
SDATA
I/O Serial interface data input/acknowledge output
36
SCLK
I Serial interface clock input
1. I = input, Ipd = Input with built-in pull-down resistor, I/O = input/output, O = output
NIPPON PRECISION CIRCUITS—3