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ICS650-21

Features: • Packaged in 20 pin tiny SSOP (QSOP)• Lower jitter version of ICS650-01• Operating VDD of 3.3V or 5V• Zero ppm synthesis error in all clocks• Inexpensive 25 MHz crystal or clock input• Provides Ethernet and Fast Ethernet clocks• Provides SCSI cl...

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SeekIC No. : 004370855 Detail

ICS650-21: Features: • Packaged in 20 pin tiny SSOP (QSOP)• Lower jitter version of ICS650-01• Operating VDD of 3.3V or 5V• Zero ppm synthesis error in all clocks• Inexpensive 25 ...

ICS650-21 Data Sheet

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Part Number:
ICS650-21
Supply Ability:
5000

Price Break

  • Qty
  • 1~5000
  • Unit Price
  • Negotiable
  • Processing time
  • 15 Days
Total Cost: $ 0.00

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Upload time: 2024/12/25

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Product Details

Description



Features:

• Packaged in 20 pin tiny SSOP (QSOP)
• Lower jitter version of ICS650-01
• Operating VDD of 3.3V or 5V
• Zero ppm synthesis error in all clocks
• Inexpensive 25 MHz crystal or clock input
• Provides Ethernet and Fast Ethernet clocks
• Provides SCSI clocks
• Provides PCI clocks
• Selectable AC97 audio clock
• Selectable USB clock
• OE pin tri-states the outputs for testing
• Selectable frequencies on three clocks
• Duty cycle of 45/55 for Processor clock and Audio clock
• Advanced, low power CMOS process


Pinout

Connection Diagram


Specifications

Parameter Conditions Minimum Maximum Units
Supply voltage, VDD Referenced to GND   7 V
Inputs and Clock Outputs Referenced to GND -0.5 VDD+0.5 V
Ambient Operating Temperature   0 70 °C
Soldering Temperature Max of 20 seconds   260 °C
Storage temperature   -65 150 °C



Description

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 of the ICS650-21 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.

The ICS650-21 can be mask customized to produce any frequencies from 1 to 150 MHz.




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