Y4

Y5

V

DD

GND

Vctr

V

DDOUT

S2/S1/S0or

SDA/SCL

Y1

VCXO

XO

LVCMOS

3

Y2

Y3

LV

CMOS

LV

CMOS

PLL1

withSSC

LV

CMOS

LV

CMOS

LV

CMOS

PLL2

withSSC

Y6

Y7

LV

CMOS

LV

CMOS

PLL3

withSSC

Y8

Y9

LV

CMOS

LV

CMOS

PLL4

withSSC

Xin/Clk 1

24 Xout

S0 2

Vdd 3

Vctr 4

21 Y1

GND 5

20 GND

Vddout 6

19 Y2

Y4 7

18 Y3

Y5 8

17 Vddout

GND 9

16 Y6

Vddout 10

15 Y7

Y8 11

14 GND

Y9 12

13 Vdd

Divider

and

Output

Control

EEPROM

Programming

and

ControlRegister

CDCE949

CDCEL949

www.ti.com

SCAS844D – AUGUST 2007 – REVISED MARCH 2010

Programmable 4-PLL VCXO Clock Synthesizer with 1.8V, 2.5V and 3.3V LVCMOS Outputs

Check for Samples: CDCE949, CDCEL949

1

FEATURES

•

Flexible Input Clocking Concept

234

•

Member of Programmable Clock Generator

–

External Crystal: 8 to 32 MHz

Family

–

On-Chip VCXO: Pull-Range ±150 ppm

–

CDCE913/CDCEL913: 1 PLLs, 3 Outputs

–

Single-Ended LVCMOS up to 160 MHz

–

CDCE925/CDCEL925: 2 PLLs, 5 Outputs

•

Low-Noise PLL Core

–

CDCE937/CDCEL937: 3 PLLs, 7 Outputs

–

Integrated PLL Loop Filter Components

–

CDCE949/CDCEL949: 4 PLLs, 9 Outputs

–

Very Low Period Jitter (typ 60 ps)

•

In-System Programmability and EEPROM

•

Separate Output Supply Pins

–

Serial Programmable Volatile Register

–

CDCE949: 3.3 V and 2.5 V

–

Non-Volatile EEPROM to Store Customer

–

CDCEL949: 1.8 V

Settings

•

1.8 V Device Power Supply

•

Highly Flexible Clock Driver

•

Wide Temperature Range –40° C to 85° C

–

Three User-Definable Control Inputs

•

Packaged in TSSOP

[S0/S1/S2] e.g. SSC-Selection, Frequency

•

Development and Programming Kit for Ease

Switching, Output Enable or Power Down

PLL Design and Programming (TI-Pro Clock)

–

Generates Highly-Accurate Clocks for

Video, Audio, USB, IEEE1394, RFID,

APPLICATIONS

Generates Common Clock Frequencies

•

D-TV, HD-TV, STB, IP-STB, DVD-Player,

Used with TI DaVinci™, OMAP™, DSPs

DVD-Recorder, Printer

–

BlueTooth™, WLAN, Ethernet and GPS

•

General Purpose Frequency Synthesizing

–

Programmable SSC Modulation

–

Enables 0-PPM Clock Generation

•

Selectable Output Frequency up to 230 MHz

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.

2

DaVinci, OMAP, Pro Clock are trademarks of Texas Instruments.

3

BlueTooth is a trademark of Bluetooth SIG, Inc.

4

PRODUCTION DATA information is current as of publication date.

Copyright © 2007–2010, Texas Instruments Incorporated

Products conform to specifications per the terms of the Texas

Instruments standard warranty. Production processing does not

necessarily include testing of all parameters.