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CY24488 Datasheet(PDF) 1 Page - Cypress Semiconductor

Part No. CY24488
Description  Quad PLL Clock Generator with Serial Interface (I2C)
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Manufacturer  CYPRESS [Cypress Semiconductor]
Direct Link  http://www.cypress.com
Logo CYPRESS - Cypress Semiconductor

CY24488 Datasheet(HTML) 1 Page - Cypress Semiconductor

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Quad PLL Clock Generator with Serial
Interface (I2C)
CY24488
Cypress Semiconductor Corporation
• 198 Champion Court
• San Jose
, CA 95134-1709
408-943-2600
Document #: 001-09608 Rev. *A
Revised October 31, 2006
Features
•Three output frequencies plus reference out
•Programmable output frequencies via I2C serial interface
•Output frequencies from 4.9152 to 148.5 MHz
•Uses an external 27 MHz crystal or 27 MHz input clock
•Optional analog VCXO
•Programmable output drive strength to minimize EMI
•The non-I2C equivalent is the CY22388 / 89 / 91
•16-pin TSSOP package
•3.3V operation with 2.5V output buffer option
Benefits
•Meets most Digital Set Top Box, DVD Recorder, and DTV
application requirements
•Multiple high-performance PLLs allow synthesis of
unrelated frequencies
•Integration eliminates the need for external loop filter
components
•Complete VCXO solution with ±120 ppm (typical pull range)
Block Diagram
Pin Configuration
PLL1
PLL2
PLL3
PLL4
Dividers
&
Multiplexers
VCXO
Serial
Interface
&
Select
Logic
XIN/CLKIN
XOUT
VIN
SCLK
SDAT
CLKC
CLKD
CLKE
CLKF
CLKG
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
XIN/CLKIN
SCLK
SDAT
VIN
VDD1
VSS
CLKC
CLKD
CLKE
CLKF
CLKG
VSS
VDD2
DNC
AVDD
XOUT
Table 1. Applications and Frequencies
Output Clock
Application
Frequencies (MHz)
CLKC
Audio
6.144, 8.192, 11.2896, 12.288, 16.384, 16.9344, 18.432, 22.5792, 24.576,
33.8688, 36.864
iLink
24.576
HDMI
25.175, 28.322
CLKD
Video
27, 27.027, 54, 54.054, 81
USB
12, 24, 48
Video-Pixel Freq.
74.25/1.001, 74.25, 148.5/1.001, 148.5
Modem
4.9152, 11.0592
iLink
24.576
CLKE
Video
13.5, 27, 54, 81, 108
Ethernet
25
PCI
33.3333, 66.6666
Processor
20, 30, 40, 50, 60, 80, 100
CLKF
see CLKC/D/E
REFOUT or Copy of CLKC, CLKD or CLKE
CLKG
see CLKC/D/E
REFOUT or Copy of CLKC, CLKD or CLKE
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