lm9831 National Semiconductor Corporation, lm9831 Datasheet - Page 3

• Manufacturer Part Number: lm9831
• Description: 42-bit Color, 1200dpi Usb Image Scanner
• Manufacturer: National Semiconductor Corporation

Electrical Characteristics
The following specifications apply for AGND=DGND=0V, V
f
DC and Logic Electrical Characteristics
The following specifications apply for AGND=DGND=0V, V
f
CCD/CIS Source Requirements for Full Specified Accuracy and Dynamic Range (Note 12)
Analog Input Characteristics
Internal Voltage Reference Characteristics
V
Digital Input Characteristics for D0-D15 (DRAM Interface)
Digital Input Characteristics for PAPER SENSE 1-2, MISC I/O 1-6, SDA, BUS POWER, CRYSTAL/EXT CLOCK, 24/48, RESET,
CMODE
Digital Input Characteristics for D+, D-
CRYSTAL IN
CRYSTAL IN
V
Symbol
V
V
Symbol
CCDPEAK
V
V
BANDGAP
REGULA-
REF MID
REF LO
V
V
V
V
V
V
REF HI
TOR
C
C
C
I
I
I
IN(1)
IN(0)
IN(1)
IN(0)
IN(1)
IN(0)
IN
IN
IN
IN
IN
IN
= 48MHz. Boldface limits apply for T
= 48MHz. Boldface limits apply for T
Sensor’s Maximum Output Signal
Amplitude before LM9831 Analog Front
End Saturation
Average OS
OS
Voltage Reference Output Voltage
Negative Reference Output Voltage
Midpoint Reference Output Voltage
Positive Reference Output Voltage
USB I/O Voltage Regulator
Logical “1” Input Voltage
Logical “0” Input Voltage
Input Leakage Current
Input Capacitance
Logical “1” Input Voltage
Logical “0” Input Voltage
Input Leakage Current
Input Capacitance
Logical “1” Input Voltage
Logical “0” Input Voltage
Input Leakage Current
Input Capacitance
R
, OS
G
, OS
R
, OS
Parameter
B
Parameter
Input Current
G
, OS
B
Input Current
(Continued)
A
A
=T
=T
J
J
=T
=T
MIN
Gain = 0.933
Gain = 3.0
Gain = 9.0
CDS Enabled, OS = 3.5V
CDS Disabled, OS = 3.5V
MIN
V
V
V
V
V
V
V
V
A
A
DRAM
DRAM
DRAM
DRAM
D
D
D
D
=V
=V
to T
to T
=5.25V
=4.75V
=5.25V
=4.75V
D
D
=V
=V
MAX
MAX
=5.25V
=3.6V
=4.75V
=2.85V
3
DRAM
DRAM
; all other limits T
; all other limits T
Conditions
Conditions
=+5.0V
=+5.0V
DC
DC
,
unless otherwise noted,
DC
DC
A
A
=T
=T
J
J
=25°C. (Notes 8, 9, & 10)
=25° C. (Notes 8, 9, & 10)
V
V
REF MID
REF MID
(Note 9)
Typical
(Note 9)
V
Typical
0.19
1.23
±26
A
1.9
0.6
±3
3.4
±0.1
±0.1
±0.1
/2.0
5
5
5
+1.0
-1.0
(Note 10)
(Note 10)
Limits
Limits
±30
2.0
2.0
0.8
0.8
2.0
0.8
2.0
0.8
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µA (max)
(Limits)
(Limits)
V (max)
V (max)
V (max)
V (max)
V (min)
V (min)
V (min)
V (min)
Units
Units
nA
µA
pF
µA
pF
µA
pF
V
V
V
V
V
V
V
V