AD6643 datasheet(26/36 Pages) AD

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AD6643 Datasheet(PDF) 26 Page - Analog Devices

Part #	AD6643

Description	Dual IF Receiver 1.8 V supply voltages Internal ADC voltage reference

PDF	36 Pages

Scroll/Zoom	100%

Manufacturer	AD [Analog Devices]

Direct Link	http://www.analog.com

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26 / 36 page

AD6643

Rev. 0 | Page 26 of 36

CHANNEL/CHIP SYNCHRONIZATION

The AD6643 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.

The SYNC input is internally synchronized to the sample clock.

However, to ensure that there is no timing uncertainty between

multiple parts, synchronize the SYNC input signal to the input

clock signal. Drive the SYNC input using a single-ended CMOS

type signal.

Using Bit 1 in Register 0x59, the SYNC input can be set to either

level or edge sensitive mode. If the SYNC input is set to edge

sensitive mode, use Bit 0 of Register 0x59 to determine whether

the rising or falling edge is used.

Manufacturer	Part #	Datasheet	Description
Sanyo Semicon Device	LA8608V	310Kb / 14P	1.8 V Low-Voltage Narrowband FM-IF System
Texas Instruments	ADS5102	334Kb / 23P	1.8-V ANALOG SUPPLY, 10-BIT, 65/40 MSPS ANALOG-TO-DIGITAL CONVERTERS WITH INTERNAL REFERENCE
Analog Devices	AD6642	1Mb / 32P	Dual IF Receiver REV. 0
Analog Devices	AD6659	1Mb / 40P	Dual IF Receiver REV. A
Texas Instruments	TLV3012-Q1	504Kb / 17P	NANOPOWER 1.8-V COMPARATOR WITH VOLTAGE REFERENCE
National Semiconductor ...	RD-170	5Mb / 14P	Low IF Receiver Reference Design
Analog Devices	AD6643	1Mb / 40P	Dual IF Receiver REV. C
	AD9268	2Mb / 45P	1.8 V Dual Analog-to-Digital Converter (ADC)
	AD6642	1Mb / 33P	Dual IF Receiver
	AD6643	1Mb / 41P	Dual IF Receiver

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