AD9508 - ADI

The pictures are for reference only, and the specific specifications can be found in the product manual.

Part No

AD9508
Manufacturer

ADI
ChipWorker Part#

CW983489107
Description

1.65GHz Clock Fanout Buffer with Output Dividers and Delay Adjust
Documentation

Datasheet

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AD9508 Specifications

Attribute	Attribute Value

Part Number	AD9508
Manufacturer	ADI
ChipWorker Part#	CW983489107
Documentation	Datasheet
	expand all
Product Lifecycle Status	Recommended for New Designs

Product Description

Product Details
The AD9508 provides clock fanout capability in a design that emphasizes low jitter to maximize system performance. This device benefits applications like clocking data converters with demanding phase noise and low jitter requirements.
There are four independent differential clock outputs, each with various types of logic levels available. Available logic types include LVDS (1.65 GHz), HSTL (1.65 GHz), and 1.8 V CMOS (250 MHz). In 1.8 V CMOS output mode, the differential output becomes two CMOS single-ended signals. The CMOS outputs are 1.8 V logic levels, regardless of the operating supply voltage.
Each output has a programmable divider that can be bypassed or be set to divide by any integer up to 1024. In addition, the AD9508 supports a coarse output phase adjustment between the outputs.
The device can also be pin programmed for various fixed configurations at power-up without the need for SPI or I2C programming.
The AD9508 is available in a 24-lead LFCSP and operates from a either a single 2.5 V or 3.3 V supply. The temperature range is −40°C to +85°C.
Applications
Low jitter, low phase noise clock distribution
Clocking high speed ADCs, DACs, DDSs, DDCs, DUCs, MxFEs
High performance wireless transceivers
High performance instrumentation
Broadband infrastructure
### Features and Benefits
1.65 GHz differential clock inputs/outputs
10-bit programmable dividers, 1 to 1024, all integers
Up to 4 differential outputs or 8 CMOS outputs
Pin strapping capability for hardwired programming at power-up
<115 fs rms broadband random jitter
Additive output jitter: 41 fs rms typical (12 kHz to 20 MHz)
Excellent output-to-output isolation
Automatic synchronization of all outputs
See data sheet for additional features
AD9508-EP supports defense and aerospace applications (AQEC standard)
Download AD9508-EP data sheet (pdf)
Extended temperature range: −55°C to +105°C
Controlled manufacturing baseline
One assembly/test site
One fabrication site
Enhanced product change notification
Qualification data available on request
V62/13626 DSCC Drawing Number

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