CDCE949 Datasheet, PDF (1/31 Pages) Texas Instruments – Programmable 4-PLL VCXO Clock Synthesizer with 1.8V, 2.5V and 3.3V LVCMOS Outputs

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CDCE949
CDCEL949
SCAS844 – JUNE 2007
Programmable 4-PLL VCXO Clock Synthesizer with 1.8V, 2.5V and 3.3V LVCMOS Outputs
FEATURES
• Member of Programmable Clock Generator
Family
– CDCE949/CDCEL949: 4 PLLs, 9 Outputs
– CDCE937/CDCEL937: 3 PLLs, 7 Outputs
– CDCE925/CDCEL925: 2 PLLs, 5 Outputs
– CDCE913/CDCEL913: 1 PLLs, 3 Outputs
• In-System Programmability and EEPROM
– Serial Programmable Volatile Register
– Non-Volatile EEPROM to Store Customer
Settings
• Very Flexible Input Clocking Concept
– External Crystal: 8 to 32 MHz
– On-Chip VCXO: Pull-Range ±150 ppm
– Single-Ended LVCMOS up to 160 MHz
• Selectable Output Frequency up to 230 MHz
• Very Low-Noise PLL Core
– Integrated PLL Loop Filter Components
– Very Low Period Jitter (typ 60 ps)
• Highly 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 TI DaVinci™, OMAP™, DSPs
– Generates Highly-Accurate Clocks for
Video, Audio, USB, IEEE1394, RFID,
BlueTooth™, WLAN, Ethernet and GPS
• 1.8 V Device Power Supply
• Separate Output Supply Pins
– CDCE949: 3.3 V and 2.5 V
– CDCEL949: 1.8 V
• Wide Temperature Range –40°C to 85°C
• Packaged in TSSOP
• Development and Programming Kit for Ease
PLL Design and Programming (TI-Pro Clock)
APPLICATIONS
• D-TV, HD-TV, STB, IP-STB, DVD-Player,
DVD-Recorder, Printer
• General Purpose Frequency Synthesizing
V_DD
Vctr
VCXO
XO
LVCMOS
S2/S1/S0 or
SDA/SCL
EEPROM
3 _Programming
and
Control Register
GND
PLL1
with SSC
PLL2
with SSC
PLL3
with SSC
Divider
and
Output
Control
V_DDOUT
LV
CMOS
LV
CMOS
LV
CMOS
LV
CMOS
LV
CMOS
LV
CMOS
LV
CMOS
Y1
Y2
Y3 Xin/Clk 1
S0 2
Vdd 3
Y4
Vctr 4
GND 5
Vddout 6
Y5
Y4 7
Y5 8
Y6
GND 9
Vddout 10
Y8 11
Y7
Y9 12
24 Xout
23 S1/SDA
22 S2/SCL
21 Y1
20 GND
19 Y2
18 Y3
17 Vddout
16 Y6
15 Y7
14 GND
13 Vdd
PLL4
with SSC
LV
CMOS
Y8
LV
CMOS
Y9
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.
BlueTooth is a trademark of Bluetooth SIG, Inc.
I2C is a trademark of Philips Electronics.
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, Texas Instruments Incorporated