LM9801CCV NSC [National Semiconductor], LM9801CCV Datasheet - Page 7

• Manufacturer Part Number: LM9801CCV
• Description: Greyscale/24-Bit Color Linear CCD Sensor Processor
• Manufacturer: NSC [National Semiconductor]

Electrical Characteristics
Note 1 Absolute Maximum Ratings indicate limits beyond which damage to the device may occur Operating Ratings indicate conditions for which the device is
functional but do not guarantee specific performance limits For guaranteed specifications and test conditions see the Electrical Characteristics The guaranteed
specifications apply only for the test conditions listed Some performance characteristics may degrade when the device is not operated under the listed lest
conditions
Note 2 All voltages are measured with respect to GND
Note 3 When the input voltage (V
50 mA maximum package input current rating limits the number of pins that can simultaneously safely exceed the power supplies with an input current of 25 mA to
two
Note 4 The maximum power dissipation must be derated at elevated temperatures and is dictated by T
allowable power dissipation at any temperature is P
board mounted is 52 C W for the V52A PLCC package and 70 C W for the VEG52A TQFP package
Note 5 Human body model 100 pF capacitor discharged through a 1 5 k
Note 6 See AN450 ‘‘Surface Mounting Methods and Their Effect on Product Reliability’’ or the section titled ‘‘Surface Mount’’ found in any National Semiconductor
Linear Data Book for other methods of soldering surface mount devices
Note 7 A Zener diode clamps the OS analog input to AGND as shown below This input protection in combination with the external clamp capacitor and the output
impedance of the CCD prevents damage to the LM9801 from transients during power-up
Note 8 To guarantee accuracy it is required that V
Note 9 Typicals are at T
Note 10 Tested limits are guaranteed to National’s AOQL (Average Outgoing Quality Level)
Note 11 For CCDs V
pixel output voltage for a white (full scale) image with respect to the reference level V
reset feedthrough pulse For CIS V
correctable range of pixel-to-pixel V
the LM9801 can correct for using its internal PGA
Note 12 Integral linearity error is defined as the deviation of the analog value expressed in LSBs from the straight line that best fits the actual transfer function of
the ADC
Note 13 Reference voltages below 1 19V may decrease SNR Reference voltages above 1 26V may cause clipping errors inside the LM9801 The
LM4041EIM3-1 2 (SOT-23 package) or the LM4041EIZ-1 2 (TO-92 package) bandgap voltage references are recommended for this application
Note 14 PGA Gain Error is the maximum difference between the measured gain for any PGA code and the ideal gain calculated by using the formula
Gain
Note 15 VGA Gain Error is the maximum difference between the measured gain for any VGA code and the ideal gain calculated by using the formula
Gain
Typical Performance Characteristics
PGA
VGA
(dB)
V
V
e
e
C
1
VGA code
a
16
BLACK
C
PGA code
J
CCD Output Signal
256
e
where C
is defined as the CCD OS voltage for the reference period following the reset feedthrough pulse V
T
A
e
IN
where C
) at any pin exceeds the power supplies (V
WHITE
WHITE
25 C f
e
(VGA RANGE)
is defined as the peak CCD pixel output voltage for a white (full scale) image with respect to GND (0V) The maximum
variation is defined as the maximum variation in V
e
MCLK
(PGA RANGE
e
A
D
20 MHz and represent most likely parametric norm
and V
e
(Continued)
16
15
e
(T
and VGA RANGE
D
TL H 12814– 5
Times Through a Series Resistance
vs Load Capacitance
Jmax
AGND
b
be connected together to the same power supply with separate bypass capacitors at each supply pin
1
1)
–T
256
255
2 RS and TR Rise and Fall
A
e
)
and PGA RANGE
DGND
JA
T
e
Jmax
resistor
e
IN k
the VGA adjustment range (in dB) of the LM9801 under test
7
DGND
e
GND or V
150 C for this device The typical thermal resistance (
BLACK
(I O)
e
the PGA adjustment range (in V V) of the LM9801 under test
e
WHITE
IN l
- V
0V unless otherwise specified
RFT
V
A
(due to PRNU light source intensity variation optics etc ) that
is defined as the peak positive deviation above V
or V
Jmax
D
TL H 12814 – 4
) the current at that pin should be limited to 25 mA The
JA
CIS Output Signal
and the ambient temperature T
TL H 12814 – 8
WHITE
is defined as the peak CCD
http
JA
) of this part when
A
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The maximum
TL H 12814 – 6
BLACK
of the