CDCE925 Datasheet, PDF (1/27 Pages) Texas Instruments – PROGRAMMABLE 2-PLL VCXO CLOCK SYNTHESIZER WITH 1.8-V, 2.5-V and 3.3-V LVCMOS OUTPUTS

CDCE925
CDCEL925
www.ti.com
SCAS847F – JULY 2007 – REVISED MARCH 2010
PROGRAMMABLE 2-PLL VCXO CLOCK SYNTHESIZER WITH 1.8-V, 2.5-V and 3.3-V
LVCMOS OUTPUTS
Check for Samples: CDCE925, CDCEL925
FEATURES
1
•234 Member of Programmable Clock Generator
Family
– CDCE913/CDCEL913: 1-PLL, 3 Outputs
– CDCE925/CDCEL925: 2-PLL, 5 Outputs
– CDCE937/CDCEL937: 3-PLL, 7 Outputs
– CDCE949/CDCEL949: 4-PLL, 9 Outputs
• Flexible Clock Driver
– Three User-Definable Control Inputs
[S0/S1/S2] e.g., SSC Selection, Frequency
Switching, Output Enable or Power Down
– Programmable SSC Modulation
– Enables 0-PPM Clock Generation
– Generates Common Clock Frequencies
Used With Texas Instruments DaVinci™,
OMAP™, DSPs
– Generates Highly Accurate Clocks for
Video, Audio, USB, IEEE1394, RFID,
Bluetooth™, WLAN, Ethernet™, and GPS
• In-System Programmability and EEPROM
– Serial Programmable Volatile Register
– Nonvolatile EEPROM to Store Customer
Setting
• Flexible Input Clocking Concept
– External Crystal: 8 MHz to 32 MHz
– On-Chip VCXO: Pull Range ±150 ppm
– Single-Ended LVCMOS up to 160 MHz
• Selectable Output Frequency up to 230 MHz
• Low-Noise PLL Core
– PLL Loop Filter Components Integrated
– Low Period Jitter (Typ 60 ps)
• 1.8-V Device Power Supply
• Separate Output Supply Pins
– CDCE925: 3.3 V and 2.5 V
– CDCEL925: 1.8 V
• Temperature Range –40°C to 85°C
• Packaged in TSSOP
• Development and Programming Kit for Easy
PLL Design and Programming (TI Pro-Clock™)
APPLICATIONS
• D-TV, STB, IP-STB, DVD-Player, DVD-Recorder,
Printer
VDD
GND
VDDOUT
Vctr
VCXO
XO
LVCMOS
S2/S1/S0 or
SDA/SCL
EEPROM
3 _Programming
and
Control Register
PLL1
With SSC
PLL2
With SSC
Divider
and
Output
Control
LV
CMOS
LV
CMOS
LV
CMOS
LV
CMOS
LV
CMOS
Y1
Xin/Clk 1
Y2
S0 2
Vdd 3
Y3
Vctr 4
GND 5
Vddout 6
Y4
Y4 7
Y5 8
Y5
16 Xout
15 S1/SDA
14 S2/SCL
13 Y1
12 GND
11 Y2
10 Y3
9 Vddout
1
Please be aware that an important notice concerning availability, standard warranty, and use in critical applications of Texas
Instruments semiconductor products and disclaimers thereto appears at the end of this data sheet.
DaVinci, OMAP, Pro-Clock are trademarks of Texas Instruments.
2
Bluetooth is a trademark of Bluetooth SIG.
3
Ethernet is a trademark of Xerox Corporattion.
4
PRODUCTION DATA information is current as of publication date.
Products conform to specifications per the terms of the Texas
Instruments standard warranty. Production processing does not
necessarily include testing of all parameters.
Copyright © 2007–2010, Texas Instruments Incorporated