844256DGLF

Obsolete

Renesas Electronics Corporation

IC CLK/FREQ SYNTH 24TSSOP

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844256DGLF

Obsolete

Renesas Electronics Corporation

IC CLK/FREQ SYNTH 24TSSOP

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Description Specifications Series Pricing CAD Documents

Description

General part information

844256D Series

The 844256DI is a Crystal-to-LVDS Clock Synthesizer/Fanout Buffer designed for SONET and Gigabit Ethernet applications. The output frequency can be set using the frequency select pins and a 25MHz crystal for Ethernet frequencies, or a 19.44MHz crystal for SONET. The low phase noise characteristics of the 844256DI make it an ideal clock for these demanding applications.

Technical Specifications

Parameters and characteristics for this part

Specification	844256DGLF

Differential Input	No
Differential Output	Yes
Divider	Yes
Frequency - Max	625 MHz
Input	Crystal
Input Ratio	1
Mounting Type	Surface Mount
Multiplier	No
Number of Circuits	1
Operating Temperature (Max)	70 °C
Operating Temperature (Min)	0 °C
Output	LVDS
Output Ratio	6
Package Features	Exposed Pad
Package Length	0.173 in
Package Name	24-TSSOP, 24-TSSOP-EP
Package Width	4.4 mm
PLL	Yes with Bypass
Type	Clock/Frequency Synthesizer, Fanout Distribution
Voltage - Supply (Maximum)	3.465 V
Voltage - Supply (Minimum)	3.135 V

844256D Series

FemtoClock Crystal-to-LVDS Frequency Synthesizer with Integrated Fanout Buffer

Part	Number of Circuits	Output	Mounting Type	Voltage - Supply (Minimum)	Voltage - Supply (Maximum)	Frequency - Max	Input	PLL	Operating Temperature (Min)	Operating Temperature (Max)	Differential Output	Differential Input	Output Ratio	Input Ratio	Type	Package Length	Package Name	Package Features	Package Width	Multiplier	Divider
Renesas Electronics Corporation 844256DGILFT	1	LVDS	Surface Mount	3.135 V	3.465 V	625 MHz	Crystal	Yes with Bypass	-40 °C	85 °C	Yes	No	6	1	Clock/Frequency Synthesizer Fanout Distribution	0.173 in	24-TSSOP 24-TSSOP-EP	Exposed Pad	4.4 mm	No	Yes
Renesas Electronics Corporation 844256DGLF	1	LVDS	Surface Mount	3.135 V	3.465 V	625 MHz	Crystal	Yes with Bypass	0 °C	70 °C	Yes	No	6	1	Clock/Frequency Synthesizer Fanout Distribution	0.173 in	24-TSSOP 24-TSSOP-EP	Exposed Pad	4.4 mm	No	Yes

Pricing

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CAD

3D models and CAD resources for this part

Documents

Technical documentation and resources

844256DGLF | Datasheet