AD9898KCP-20 Analog Devices Inc, AD9898KCP-20 Datasheet - Page 23

• Manufacturer Part Number: AD9898KCP-20
• Description: IC CCD SIGNAL PROC/GEN 48-LFCSP
• Manufacturer: Analog Devices Inc
• Type: CCD Signal Processor, 10-Bitr

Specifications of AD9898KCP-20

• Rohs Status: RoHS non-compliant
• Input Type: Logic
• Output Type: Logic
• Interface: 3-Wire Serial
• Mounting Type: Surface Mount
• Package / Case: 48-LFCSP
• Analog Front End Type: CCD
• Analog Front End Category: Video
• Interface Type: Serial (3-Wire)
• Input Voltage Range: 0.5V
• Operating Supply Voltage (min): 2.7V
• Operating Supply Voltage (typ): 3V
• Operating Supply Voltage (max): 3.6V
• Resolution: 10b
• 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: 48
• Package Type: LFCSP EP
• Number Of Channels: 3
• Current - Supply: -
• Lead Free Status / RoHS Status: Not Compliant

EXTERNAL SYNCHRONIZATION (MASTER MODE)
External synchronization can be used to synchronize the VD
and HD signal by applying an external pulse on the SYNC/
VGATE pin (Pin 45) for master mode operation. The SYNC/
VGATE pin is configured as an external SYNC input for mas-
ter mode operation by setting the SLAVE_MODE register
(Addr 0xD6) = 0. (The AD9898 defaults to slave mode at
power-up.)
SYNCCNT (Addr 0x0A) and SYNCPOL (Addr 0x01) are the
only two registers used for configuring the AD9898 for external
synchronization. The SYNCPOL is a 1-bit register used for
configuring the SYNC input as either active low or active high.
The AD9898 defaults to active low at power-up. The function
of the SYNCCNT register is described in Table X. Figures 16
and 17 provide two examples of external synchronization with
SYNCPOL = 0.
REV. 0
OPERATION
SYNC
WRITES
SERIAL
MODE
VD
SYNC
VD
Figure 16. Example of Synchronization with SYNCPOL = 0 and SYNCCNT = 1
Figure 17. Example of Synchronization with SYNCPOL = 0 and SYNCCNT = 3
2 CLI
2 CLI
4 CLI
4 CLI
MIN
MIN
MODE A
–23–
SYNCCNT
0
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
4 CLI
4 CLI
Table X. External Synchronization (Master Mode)
External Synchronization Options
Disable External Synchronization
VD Sync at every SYNC Pulse
VD Sync after Second Applied SYNC Pulse
VD Sync after Third Applied SYNC Pulse
VD Sync after Fourth Applied SYNC Pulse
VD Sync after Fifth Applied SYNC Pulse
VD Sync after Sixth Applied SYNC Pulse
VD Sync after Seventh Applied SYNC Pulse
VD Sync after Eighth Applied SYNC Pulse
VD Sync after Ninth Applied SYNC Pulse
VD Sync after Tenth Applied SYNC Pulse
VD Sync after Eleventh Applied SYNC Pulse
VD Sync after Twelfth Applied SYNC Pulse
VD Sync after Thirteenth Applied SYNC Pulse
VD Sync after Fourteenth Applied SYNC Pulse
VD Sync after First Applied SYNC Pulse Only
CHANGE TO MODE B
4 CLI
4 CLI
MODE B
AD9898