CDCE937-Q1_15 Datasheet, PDF (1/30 Pages) Texas Instruments – PROGRAMMABLE 3-PLL VCXO CLOCK SYNTHESIZER

www.ti.com
CDCE937-Q1
CDCEL937-Q1
SCAS892B – FEBRUARY 2010 – REVISED MAY 2010
PROGRAMMABLE 3-PLL VCXO CLOCK SYNTHESIZER
WITH 1.8-V, 2.5-V, AND 3.3-V LVCMOS OUTPUTS
Check for Samples: CDCE937-Q1, CDCEL937-Q1
FEATURES
1
• Qualified for Automotive Applications
• 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
• 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
– Integrated PLL Loop Filter Components
– Low Period Jitter (Typ 60 ps)
• Separate Output Supply Pins
– CDCE937: 3.3 V and 2.5 V
– CDCEL937: 1.8 V
• 1.8-V Device Power Supply
• Flexible Clock Driver
– Three User-Definable Control Inputs
[S0/S1/S2]; e.g., SSC Selection, Frequency
Switching, Output Enable or Power Down
– Generates Highly Accurate Clocks for
Video, Audio, USB, IEEE1394, RFID,
Bluetooth™, WLAN, Ethernet™, and GPS
– Generates Common Clock Frequencies
Used With TI DaVinci™, OMAP™, DSPs
– Programmable SSC Modulation
– Enables 0-PPM Clock Generation
• Latch-Up Performance Meets 100 mA
Per JESD 78, Class I
• Wide Temperature Range –40° C to 125° C
• Packaged in TSSOP
• Development and Programming Kit for Easy
PLL Design and Programming (TI Pro-Clock™)
APPLICATIONS
• D-TV, HD-TV, STB, IP-STB, DVD-Player,
DVD-Recorder, Printer
V_DD
Vctr
VCXO
XO
LVCMOS
S2/S1/S0 or
SDA/SCL
3
EEPROM
Programming
and
Control Register
GND
Vddout
PLL1
with SSC
PLL2
with SSC
PLL3
with SSC
LV
CMOS
Y1
LV
CMOS
Y2
LV
CMOS
Y3
Divider
and
Output
LV
CMOS
Y4
Control
LV
CMOS
Y5
LV
CMOS
Y6
LV
CMOS
Y7
Xin/Clk 1
S0 2
Vdd 3
Vctr 4
GND 5
Vddout 6
Y4 7
Y5 8
GND 9
Vddout 10
20 Xout
19 S1/SDA
18 S2/SCL
17 Y1
16 GND
15 Y2
14 Y3
13 Vddout
12 Y6
11 Y7
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.
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 © 2010, Texas Instruments Incorporated