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System Peripheral Clock Source

封装信息

Lead Count (#) 20
Pkg. Code PCG20
Pitch (mm) 0.64
Pkg. Type QSOP
Pkg. Dimensions (mm) 8.7 x 3.8 x 1.47

环境和出口类别

Moisture Sensitivity Level (MSL) 1
Pb (Lead) Free Yes
ECCN (US) NLR
HTS (US) 8542390001

产品属性

Lead Count (#) 20
Carrier Type Tube
Moisture Sensitivity Level (MSL) 1
Qty. per Reel (#) 0
Qty. per Carrier (#) 55
Pb (Lead) Free Yes
Pb Free Category e3 Sn
Temp. Range -40 to +85°C
Accepts Spread Spec Input No
C-C Jitter Max P-P (ps) 75
Core Voltage (V) 3.3, 5
Die Form No
Feedback Input No
Input Freq (MHz) 25 - 25
Input Type Crystal, LVCMOS
Inputs (#) 6
Length (mm) 8.7
MOQ 3025
Output Banks (#) 1
Output Freq Range (MHz) 12 - 100
Output Type LVCMOS
Output Voltage (V) 3.3, 5
Outputs (#) 7
Package Area (mm²) 33.1
Period Jitter Max P-P (ps) 500.000
Pitch (mm) 0.64
Pkg. Dimensions (mm) 8.7 x 3.8 x 1.47
Pkg. Type QSOP
Prog. Clock No
Reference Output No
Requires Terms and Conditions Does not require acceptance of Terms and Conditions
Spread Spectrum No
Supply Voltage (V) 0 - 0
Tape & Reel No
Thickness (mm) 1.47
Width (mm) 3.8
Xtal Freq (KHz) 25 - 25
Xtal Inputs (#) 1

描述

 

The ICS650-21 is a low cost, low-jitter, high-performance clock synthesizer for system peripheral applications. Using analog/digital Phase Locked Loop (PLL) techniques, the device accepts a parallel resonant 25 MHz crystal input to produce up to eight output clocks. The device provides clocks for PCI, SCSI, Fast Ethernet, Ethernet, USB, and AC97. The user can select one of three USB frequencies and also one of two AC97 audio frequencies. The OE pin puts all outputs into a high-impedance state for board level
testing. All frequencies are generated with less than one ppm error, meeting the demands of SCSI and Ethernet clocking.