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DP84910 bảng dữ liệu(PDF) 13 Page - National Semiconductor (TI)

[Old version datasheet] Texas Instruments acquired National semiconductor.
tên linh kiện DP84910
Giải thích chi tiết về linh kiện  Integrated Read Channel
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DP84910 bảng dữ liệu(HTML) 13 Page - National Semiconductor (TI)

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DC Electrical CharacteristicsPulse Detector Servo and Filter guaranteed over
operating conditions (see table) unless otherwise specified Minimum andor maximum limits are guaranteed by outgoing testing
unless otherwise specified (Continued)
Symbol
Circuit
Parameter
Conditions
Min
Typ
Max
Units
Block
(Note 24)
ISETHYS
CHAN
Set Hysteresis Input Bias
VSETHYSD e VSETHYSS e 045V
b
38
b
24
m
A
INPUTS
Current
(Note 11)
IVREF
CHAN
VREF Input Bias Current
VREF e 05V
b
30
b
155
m
A
INPUTS
IDIFC
CHAN
Differentiator Bias Current
VDIFC2 e 35V or
13
18
mA
INPUTS
VDIFC1 e 35V
Vth(HYSTS)
CHAN
Hysteresis Comparator
(Note 9)
194
239
mVPP
INPUTS
Threshold Voltage for Servo
Hysteresis Level
VthHYSD(111)
CHAN
Data Field Hysteresis
Ctrl Reg Bits HYS
VTHO e 1
INPUTS
Comparator Threshold
HYS
VTH1 e HYS
VTH2 e 1
133
159
mVPP
Voltage
(Note 9)
VthHYSD(110)
CHAN
Data Field Hysteresis
Ctrl Reg Bits HYS
VTH0 e 0
INPUTS
Comparator Threshold
HYS
VTH2 e HYS
VTH1 e 1
166
201
mVPP
Voltage
(Note 9)
VthHYSD(101)
CHAN
Data Field Hysteresis
Ctrl Reg Bits HYST
VTH1 e 0
INPUTS
Comparator Threshold
HYS
VTH0 e HYS
VTH2 e 1
207
246
mVPP
Voltage
(Note 9)
VthHYSD(011)
CHAN
Data Field Hysteresis
Ctrl Reg Bits HYS
VTH2 e 0
INPUTS
Comparator Threshold
HYS
VTH0 e HYS
VTH1 e 1
282
315
mVPP
Voltage
(Note 9)
VthHYSD(000)
CHAN
Data Field Hysteresis
Ctrl Reg Bits HYS
VTH0 e
INPUTS
Comparator Threshold
HYS
VTH1 e HY
VTH2 e 0
372
418
mVPP
Voltage
(Note 9)
ZSCAP(DIS)
SERVO
SCAP Pin Discharge
VHOLD e 03V VS4 e 4V
4
62
85
kX
Impedance
VSCAP1–4 e 2V (Note 12)
AvQT(gd)
SERVO
Servo Channel Gain for
VHOLD e 3V
46
55
78
VV
Quarter Track Mispositioning
(Note 14)
VINTERCEPT
SERVO
Servo Channel Output
VHOLD e 4V
1
14
%
Voltage for 0 VPP Input
(Notes 13 and 15)
GLgd
SERVO
Gated Detector Gain
VHOLD e 4V
03
1
%
Linearity
(Notes 13 16 and 17)
VOSgd
SERVO
Gated Detector Output
VHOLD e 4V
10
25
mV
Voltage Offset
(Note 18)
ILgd
SERVO
Gated Detector Leakage
VS1 e VS2 e VS3 e VS4 e 03V
002
005
m
A
Current
VHOLD e 4V (Note 19)
VOS(DA)
SERVO
Servo Difference
(Note 20)
512
mV
Amplifier Offset Voltage
AVDA
SERVO
Servo Difference
Gain is Measured from
Amplifier Gain
SCAP Pins to Difference
045
0475
05
VV
Amplifier Output
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