AD9643 Analog Devices, AD9643 Datasheet - Page 28

• Manufacturer Part Number: AD9643
• Description: 14-Bit, 170/210/250 MSPS, 1.8 V Dual Analog-to-Digital Converter (ADC)
• Manufacturer: Analog Devices

Specifications of AD9643

• Resolution (bits): 14bit
• # Chan: 2
• Sample Rate: 250MSPS
• Interface: LVDS,Par
• Analog Input Type: Diff-Bip
• Ain Range: 1.75 V p-p
• Adc Architecture: Pipelined
• Pkg Type: CSP

AD9643
CHANNEL/CHIP SYNCHRONIZATION
The AD9643 has a SYNC input that allows the user flexible
synchronization options for synchronizing the internal blocks.
The SYNC feature is useful for guaranteeing synchronized
operation across multiple ADCs. The input clock divider can be
synchronized using the SYNC input. The divider can be enabled
to synchronize on a single occurrence of the SYNC signal or on
every occurrence by setting the appropriate bits in Register 0x3A.
Rev. B | Page 28 of 36
The SYNC input is internally synchronized to the sample clock.
However, to ensure that there is no timing uncertainty between
multiple parts, the SYNC input signal should be synchronized
to the input clock signal. The SYNC input should be driven
using a single-ended CMOS type signal.
Data Sheet