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840004I-01

Part Number	840004I-01
Manufacturer	Renesas
Description	Crystal-to-LVCMOS/LVTTL Frequency Synthesizer
Published	Jan 16, 2024
Detailed Description	FemtoClock® Crystal-to-LVCMOS/ LVTTL Frequency Synthesizer 840004I-01 Datasheet General Description Features The 840...
Datasheet	840004I-01 PDF File

Overview

FemtoClock® Crystal-to-LVCMOS/ LVTTL Frequency Synthesizer 840004I-01 Datasheet General Description Features The 840004I-01 is a 4 output LVCMOS/LVTTL Synthesizer optimized to generate Ethernet reference clock frequencies.
Using a 25MHz, 18pF parallel resonant crystal, the following frequencies can be generated based on the 2 frequency select pins (F_SEL1:0): 156.
25MHz, 125MHz, and 62.
5MHz.
The 840004I-01 uses IDT’s 3rd generation low phase noise VCO technology and can achieve 1ps or lower typical random rms phase jitter, easily meeting Ethernet jitter requirements.
The 840004I-01 is packaged in a small 20-pin TSSOP package.
• Four single-ended LVCMOS/LVTTL outputs 17 typical output impedance • Selectable crystal oscillator interface or single-ended input, Supports the following output frequencies: 156.
25MHz, 125MHz and 62.
5MHz • VCO range: 560MHz - 700MHz • RMS phase jitter at 156.
25MHz (1.
875MHz – 20MHz): 0.
52ps (typical) • Output supply modes: Core/Output 3.
3V/3.
3V 3.
3V/2.
5V 2...

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840004I-01 Crystal-to-LVCMOS/LVTTL Frequency Synthesizer - Renesas

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