SM9103M Datasheet, PDF (9/14 Pages) Nippon Precision Circuits Inc – DVDRAM Head Amplifier LSI

SM9103M
Parameter
Condition
min
FSUB offset voltage
RAM read/write, ROM
read max gain
–
No input signal,
V_REF reference, RAM read, min to max
post-correction, gain
–
T_a = 25°C
RAM read/write
differential gain max.
–
FADD offset voltage
No input signal, V_REF reference
–
FSUB offset voltage temperature
coefficient
–
FSUB variable gain range
−16
FSUB variable gain step width
–
FSUB gain switching absolute accuracy
V_OUT = V_REF ±
0.35 V
−16 to +8 dB
+10 to +14 dB
–
–
1. FSUB = K × [I_F1 − I_F2], gain = 0 dB
2. FADD = K × [I_F1 + I_F2]
3. F1, F2: 14 pF input load capacitance
FSUB, FADD: 10 pF output load capacitance, 10 kΩ load resistance
Mode Control Logic
Rating
typ
–
–
–
–
–
–
2
–
–
max
±7.0
±21
±4
±50
±0.22
+14
–
±0.5
±1.0
Unit
mV
mV
mV/°C
dB
dB
dB
WRITE
LOW or open
LOW or open
HIGH
HIGH
Control input
MODE
LOW or open
HIGH
LOW or open
HIGH
Operating mode
RAM read
ROM read
RAM write
Offset correction
Active
Inactive
Offset Correction Characteristics
V_CC = 5 V ± 5%, GND = 0 V, T_a = 0 to 70 °C
Parameter
Symbol
Condition
Rating
Unit
min
typ
max
TSUB offset residual
V_REF reference, T_a = 25 °C
–
FSUB offset residual
V_REF reference, T_a = 25 °C
–
Supply voltage droop detect level
V₁
1.9
Correction circuit startup supply voltage
V₂
3.2
V₁ and V₂ difference
V₂ − V₁
0.7
Correction thermal sensor detect
temperature
15
–
±8.5
mV
–
±5.5
mV
2.8
3.7
V
3.8
4.4
V
1.0
1.3
V
20
25
°C
Offset correction time
–
–
150
ms
NIPPON PRECISION CIRCUITS—9