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SM9403BM PDF 데이터시트 ( Data , Function )

부품번호 SM9403BM 기능
기능 DVDRAM Servo-amplifier LSI
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SM9403BM 데이터시트, 핀배열, 회로
NIPPON PRECISION CIRCUITS INC.
SM9403BM
DVDRAM Servo-amplifier LSI
OVERVIEW
The SM9403BM is a DVDROM and DVDRAM servo preprocessor LSI, designed for double-speed format
DVDROM and DVDRAM drives.
The SM9403BM is fabricated using a BiCMOS process, and incorporates an analog signal processing circuit
that generates signals needed by the digital servo processor, a DPD signal processing circuit (DVDROM), and
a CAPA (Complementary Allocated Pit Address) detection circuit (DVDRAM) all in a single chip. It operates
from a single 5 V supply, and is available in 36-pin plastic SSOP packages.
FEATURES
s DPD signal processor
s Tracking error signal output
s Focus error signal output
s Tracking error signal sample-and-hold
s Focus error signal sample-and-hold
s CAPA detection function
s Track count pulse generator
s Off-track detection
s 2V and 4V reference voltage generator
s Serial interface for setting internal parameters
s Sleep-mode function
s Single 5 V supply
s 36-pin plastic SSOP
APPLICATIONS
s Double-speed DVDROM drives
s Double-speed DVDRAM drives
ORDERING INFORMATION
Device
SM9403BM
Package
36-pin SSOP
PINOUT
36-pin SSOP (Top View)
NC 1
NC 2
FER 3
FHOLD 4
FSUB 5
ISET 6
DPDD 7
DPDC 8
DPDB 9
DPDA 10
AGND 11
MMTI 12
CAPAN 13
CAPAP 14
CAPLFC 15
TSUB 16
THOLD 17
TRE 18
36 DPDG
35 DPDI
34 DEFECT
33 DGND
32 SCLK
31 SDATA
30 SENB
29 DVCC
28 CAPSEEK
27 CAPSEL
26 CAPIN
25 AVCC
24 CAPOUT
23 CAPAREA
22 TRP
21 TROFF
20 VREF2
19 VREF4
NIPPON PRECISION CIRCUITS—1




SM9403BM pdf, 반도체, 판매, 대치품
SM9403BM
SPECIFICATIONS
Absolute Maximum Ratings
GND = 0 V
Parameter
Supply voltage range
Input voltage range
Operating temperature range
Storage temperature range
Power dissipation
Soldering temperature
Soldering time
Symbol
VCC
V IN
Topr
T stg
PD
T sld
tsld
Condition
Recommended Operating Conditions
GND = 0 V
Parameter
Specifications supply voltage range
Operating supply voltage range
Operating temperature range
Symbol
VCC
VCC
Topr
Condition
Recommended External Components
Pin No.
4
6
12
15
17
19
20
35
36
Pin name
FHOLD
ISET
MMTI
CAPLFC
THOLD
VREF4
VREF2
DPDI
DPDG
Component
1000pF capacitor
47kresistor
0.01µF capacitor
120kresistor
0.01µF capacitor
1000pF capacitor
0.1µF capacitor
0.1µF capacitor
47kresistor
33kresistor
Rating
0.5 to 7.0
0.5 to VCC + 0.5
0 to 70
40 to 125
250
260
10
Unit
V
V
°C
°C
mW
°C
s
Rating
4.75 to 5.25
4.5 to 5.5
0 to 70
Unit
V
V
°C
Tolerance
K (±10%)
±1%
Z (+80% to 2 0 % )
±1%
Z (+80% to 2 0 % )
K (±10%)
Z (+80% to 2 0 % )
Z (+80% to 2 0 % )
±1%
±1%
NIPPON PRECISION CIRCUITS—4

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SM9403BM 전자부품, 판매, 대치품
SM9403BM
DPD Error Signal Detector Characteristics (DPDA/DPDB/DPDC/DPDD TRP)
VCC = 5V ± 5%, GND = 0V, Ta = 0 to 70°C
Parameter1
Condition
Rating
min typ max
Unit
DPDA/DPDB/DPDC/DPDD input voltage
ra n g e
VREF2 reference
0 . 5 5
+1
V
DPDA/DPDB/DPDC/DPDD input
impedance
1 – – M
Signal gain relative accuracy
Gain relative to DPDA, DPDB, DPDC,
DPDD inputs
±0.17
dB
Equalizer gain
1MHz setting
5MHz setting
DG2 =LOW
DG2 = HIGH
DG2 =LOW
DG2 = HIGH
1.2 1.6 2.3
1.8 2.2 2.9
dB
5.5 6.1 6.6
6.1 6.7 7.2
Equalizer frequency response
Peak gain frequency (EQE = HIGH)
3dB frequency (EQE = LOW )
3.75 5.0 6.25
MHz
11 22 33
Equalizer frequency response relative
accuracy
fpeak, (A + C) vs. (B + D)
– – ±1.5 %
A C coupling time circuit 3dB frequency
Time constant 1
Time constant 2
DG2 = LOW
DG2 = HIGH
56 84 109
kHz
17 24 32
AC coupling time constant relative
accuracy
3dB frequency, (A + C) vs. (B + D)
– – ±2 %
Delay control range
See table 4.
See table 4.
ns
Phase difference detector minimum time DG1 = DG2 = LOW
2 – – ns
Phase difference detector maximum time DG1 = DG2 = HIGH
– – 1 µs
Phase difference detector minimum
repeat time
Input pulse interval
120 –
– ns
Phase difference to voltage conversion
coefficient
DG1 = DG2 = LOW
– See table 5. typ ± 20% mV/ns
Phase difference to voltage conversion
coefficient change accuracy
See table 8.
±1
dB
Phase difference output offset voltage VREF2 reference
– – ±0.1 V
Phase difference output offset voltage
temperature drift
VREF2 reference
– – ±570 µV/°C
DEFECT signal response time
– – 1 µs
DPD enable response time
DPE flag
– – 2 µs
Abnormal waveform TRP droop
characteristic
V O U T = V R E F 2 ± 200mV, VREF2 reference
– 0.1 %/µs
TRP output voltage range
VREF2 reference
1.25 0 +1.25 V
TRP output signal frequency response 3dB frequency
500 –
– kHz
1. The tracking error signal TRE is positive with respect to VREF2 if the (DPDA + DPDC) signal phase difference is leading.
The detected phase difference is the difference between the point when one internal comparator output changes (from CMA and CMB both HIGH or
both LOW) until the second output changes before the first changes again. The phase difference is converted to a voltage and sampled for output.
Other signals are held constant in the output stage when a phase difference is detected.
NIPPON PRECISION CIRCUITS—7

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부품번호상세설명 및 기능제조사
SM9403BM

DVDRAM Servo-amplifier LSI

Nippon Precision Circuits Inc
Nippon Precision Circuits Inc

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