AD9945KCP Analog Devices Inc, AD9945KCP Datasheet - Page 3

• Manufacturer Part Number: AD9945KCP
• Description: IC CCD SIGNAL PROCESSOR 32-LFCSP
• Manufacturer: Analog Devices Inc
• Type: CCD Signal Processor, 12-Bitr

Specifications of AD9945KCP

• Rohs Status: RoHS non-compliant
• Input Type: Logic
• Output Type: Logic
• Interface: 3-Wire Serial
• Mounting Type: Surface Mount
• Package / Case: 32-LFCSP
• Analog Front End Type: CCD
• Analog Front End Category: Video
• Interface Type: Serial (3-Wire)
• Sample Rate: 40MSPS
• Input Voltage Range: 0.5V
• Operating Supply Voltage (min): 2.7V
• Operating Supply Voltage (typ): 3V
• Operating Supply Voltage (max): 3.6V
• Resolution: 12b
• Number Of Adc's: 1
• Power Supply Type: Analog/Digital
• Operating Temp Range: -20C to 85C
• Operating Temperature Classification: Commercial
• Mounting: Surface Mount
• Pin Count: 32
• Package Type: LFCSP EP
• Number Of Channels: 1
• Current - Supply: -
• Lead Free Status / RoHS Status: Not Compliant

REV. B
SYSTEM SPECIFICATIONS
Parameter
CDS
VARIABLE GAIN AMPLIFIER (VGA)
BLACK LEVEL CLAMP
A/D CONVERTER
VOLTAGE REFERENCE
SYSTEM PERFORMANCE
*Input Signal Characteristics defined as follows:
RESET TRANSIENT
Specifications subject to change without notice.
Maximum Input Range before Saturation*
Allowable CCD Reset Transient*
Maximum CCD Black Pixel Amplitude*
Gain Control Resolution
Gain Monotonicity
Gain Range
Clamp Level Resolution
Clamp Level
Resolution
Differential Nonlinearity (DNL)
No Missing Codes
Data Output Coding
Full-Scale Input Voltage
Reference Top Voltage (REFT)
Reference Bottom Voltage (REFB)
Gain Range
Gain Accuracy
Peak Nonlinearity, 500 mV Input Signal
Total Output Noise
Power Supply Rejection (PSR)
Low Gain Mode
500mV TYP
Minimum Gain
Maximum Gain
Minimum Clamp Level
Maximum Clamp Level
Low Gain (VGA Code = 0)
Maximum Gain (VGA Code = 1023)
OPTICAL BLACK PIXEL
100mV TYP
INPUT SIGNAL RANGE
1V TYP
(T
unless otherwise noted.)
MIN
to T
Min
40.0
12
40.0
−1.5
MAX
Straight Binary
Guaranteed
Guaranteed
, AVDD = DVDD = DRVDD = 3.0 V, f
± 0.5
Typ
1.0
500
100
5.3
41.5
256
0
255
2.0
2.0
1.0
5.3
41.5
0.1
1.2
40
1024
0
1.0
+1.5
Max
–3–
Unit
Vp-p
mV
mV
Steps
dB
dB
dB
Steps
LSB
LSB
Bits
LSB
V
V
V
dB
dB
dB
%
LSB rms
dB
See Figure 7 for VGA Gain Curve
See Variable Gain Amplifier section for VGA gain equation
See Table 1, Internal Register Map, for register information
Notes
See Input Waveform in Footnote
Measured at ADC Output
Specifications Include Entire Signal Chain
12 dB Gain Applied
AC Grounded Input, 6 dB Gain Applied
SAMP
= 40 MHz, Register 0xD = 0x838,
AD9945