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See Technical Specifications

843004AGLFT +BOM

FemtoClock® LVCMOS/Crystal-to-3.3V LVPECL Frequency Synthesizer

Manufacturer:

Renesas Electronics Corporation
Mfr.Part #:

843004AGLFT
Datasheet:

843004AGLFT Datasheet (PDF)
Series:

FemtoClock®
Programmabe:

Not Verified
Type:

Frequency Synthesizer
PLL:

Yes with Bypass
EDA/CAD Models:

Request Free CAD Models for 843004AGLFT

843004AGLFT General Description

The 843004 is a 4 output LVPECL synthesizer optimized to generate Fibre Channel reference clock frequencies. Using a 26.5625MHz 18pF parallel resonant crystal, the following frequencies can be generated based on the 2 frequency select pins (F_SEL[1:0]): 212.5MHz, 187.5MHz, 159.375MHz, 156.25, 106.25MHz, and 53.125MHz. The 843004 uses IDT's 3rd generation low phase noise VCO technology and can achieve 1ps or lower typical rms phase jitter, easily meeting Fibre Channel jitter requirements. The 843004 is packaged in a small 24-pin TSSOP package.

Key Features

Four 3.3Vdifferential LVPECL output pairs
Selectable crystal oscillator interface or LVCMOS/LVTTL single-ended clock input
Supports the following output frequencies: 212.5MHz, 187.5MHz, 159.375MHz, 156.25MHz, 106.25MHz, 53.125MHz
VCO range: 560MHz – 680MHz
RMS phase jitter @ 212.5MHz, using a 26.5625MHz crystal (637kHz – 10MHz): 0.72ps (typical)
Offset Noise Power
100Hz -95.0 dBc/Hz
1kHz -114.3 dBc/Hz
10kHz -123.8 dBc/Hz
100kHz -124.6 dBc/Hz
Full 3.3V supply mode
-30°C to 85°C ambient operating temperature
Available in lead-free (RoHS 6) package

Specifications

Series	FemtoClock®	Programmabe	Not Verified
Type	Frequency Synthesizer	PLL	Yes with Bypass
Input	Crystal	Output	LVPECL
Number of Circuits	1	Ratio - Input:Output	1:4
Differential - Input:Output	No/Yes	Frequency - Max	226.66MHz
Divider/Multiplier	Yes/No	Voltage - Supply	3.135V ~ 3.465V
Operating Temperature	-30°C ~ 85°C	Mounting Type	Surface Mount
Base Product Number	843004A