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840022I-02

Renesas
Part Number 840022I-02
Manufacturer Renesas
Description Crystal-to-LVCMOS/LVTTL Clock Generator
Published Oct 28, 2021
Detailed Description FemtoClock® Crystal-to-LVCMOS/LVTTL ICS840022I-02 Clock Generator DATA SHEET General Description The ICS840022I-02 is ...
Datasheet PDF File 840022I-02 PDF File

840022I-02
840022I-02

Overview
FemtoClock® Crystal-to-LVCMOS/LVTTL ICS840022I-02 Clock Generator DATA SHEET General Description The ICS840022I-02 is a Gigabit Ethernet Clock Generator.
The ICS840022I-02 uses a 25MHz crystal to synthesize 125MHz or 62.
5MHz.
The ICS840022I-02 has excellent phase jitter performance, over the 12kHz – 20MHz integration range.
The ICS840022I-02 is packaged in a small 16-pin VFQFN, making it ideal for use in systems with limited board space.
Features • One LVCMOS/LVTTL outputs, 20 output impedance • Crystal oscillator interface designed for 25MHz, 18pF parallel resonant crystal • Output frequencies: 125MHz or 62.
5MHz • RMS phase jitter at 125MHz using a 25MHz crystal (12kHz - 20MHz): 0.
57ps (typical) • Supply modes: Core/Output 3.
3V/3.
3V 3.
3V/2.
5V 2.
5V/2.
5V • -40°C to 85°C ambient operating temperature • Available in lead-free (RoHS 6) package Function Table Inputs FREQ_SEL 0 1 Output Frequency Range (with a 25MHz crystal) 125MHz 62.
5MHz Block Diagram FREQ_SEL Pulldown XTAL_IN 25MHz XTAL_OUT OSC Phase Detector VCO PWR_DN Pullup M = ÷25 (fixed) Pin Assignment VDD nc nc GND 16 15 14 13 PWR_DN 1 12 Q ÷5 0 XTAL_OUT 2 Q XTAL_IN 3 11 nc 10 VDDO ÷10 1 GND 4 9 VDD 5 6 78 GND nc FREQ_SEL GND ICS840022I-02 16 Lead VFQFN Top View ICS840022AKI-02 May 27, 2017 1 ©2017 Integrated Device Technology, Inc.
ICS840022I-02 Data Sheet FEMTOCLOCK® CRYSTAL-TO-LVCMOS/LVTTL CLOCK GENERATOR Table 1.
Pin Descriptions Number 1 Name PWR_DN Type Input Pullup Description Output state control pin.
See Table 3.
LVCMOS/LVTTL interface levels.
2, 3 XTAL_OUT, XTAL_IN Input Crystal oscillator interface.
XTAL_IN is the input.
XTAL_OUT is the output.
4, 5, 8, 13 6, 11, 14, 15 GND nc Power Unused Power supply ground.
No connect.
7 9, 16 10 12 FREQ_SEL VDD VDDO Q Input Power Power Output Pulldown Frequency select pin.
LVCMOS/LVTTL interface levels.
Power supply pins.
Output supply pin.
Single-ended clock output.
20 typical output impedance.
LVCMOS/LVTTL i...


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