AD9945KCP Analog Devices Inc, AD9945KCP Datasheet - Page 9

• 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
SERIAL INTERFACE
SDATA
SDATA
SCK
SL
SCK
SL
NOTES
1. MULTIPLE SEQUENTIAL REGISTERS MAY BE LOADED CONTINUOUSLY.
2. THE FIRST (LOWEST ADDRESS) REGISTER ADDRESS IS WRITTEN, FOLLOWED BY MULTIPLE 12-BIT DATA-WORDS.
3. THE ADDRESS WILL AUTOMATICALLY INCREMENT WITH EACH 12-BIT DATA-WORD (ALL 12 BITS MUST BE WRITTEN).
4. SL IS HELD LOW UNTIL THE LAST DESIRED REGISTER HAS BEEN LOADED.
5. NEW DATA IS UPDATED AT THE NEXT SL RISING EDGE.
t
DS
A0
NOTES
1. SDATA BITS ARE INTERNALLY LATCHED ON THE RISING EDGES OF SCK.
2. SYSTEM UPDATE OF LOADED REGISTERS OCCURS ON SL RISING EDGE.
3. ALL 12 DATA BITS D0 TO D11 MUST BE WRITTEN. IF THE REGISTER CONTAINS FEWER THAN 12 BITS, ZEROS SHOULD BE
1
USED FOR THE UNDEFINED BITS.
A1
A0
2
t
A2
LS
A1
3
t
DH
A3
Figure 5. Continuous Serial Write Operation to All Registers
4
A2
D0
5
A3
D1
DATA FOR STARTING
REGISTER ADDRESS
6
D2
D0
7
Figure 4. Serial Write Operation
D3
8
D1
D4
9
D2
D5
10
D3
...
...
...
–9–
D4
D10
15
D11
D5
16
D0
D6
17
D1
REGISTER ADDRESS
18
DATA FOR NEXT
D7
...
...
...
D8
D10 D11
D9
27
28
D10
t
D0
LH
29
D11
D1
30
D2
AD9945
31
...
...
...