CDCE913_15 Datasheet, PDF (1/35 Pages) Texas Instruments – Programmable 1-PLL VCXO Clock Synthesizer

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CDCE913, CDCEL913
SCAS849F – JUNE 2007 – REVISED APRIL 2015
CDCEx913 Programmable 1-PLL VCXO Clock Synthesizer
With 1.8-V, 2.5-V, and 3.3-V Outputs
1 Features
•1 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
Settings
• 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
• Free Selectable Output Frequency up to 230 MHz
• Low-Noise PLL Core
– PLL Loop Filter Components Integrated
– Low Period Jitter (Typical 50 ps)
• Separate Output Supply Pins
– CDCE913: 3.3 V and 2.5 V
– CDCEL913: 1.8 V
• Flexible Clock Driver
– Three User-Definable Control Inputs
[S0/S1/S2], for Example, 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
• 1.8-V Device Power Supply
• Wide Temperature Range –40°C to 85°C
• Packaged in TSSOP
• Development and Programming Kit for Easy PLL
Design and Programming (TI Pro-Clock™)
3 Description
The CDCE913 and CDCEL913 devices are modular
PLL-based,
low-cost,
high-performance,
programmable clock synthesizers. They generate up
to three output clocks from a single input frequency.
Each output can be programmed in-system for any
clock frequency up to 230 MHz, using the integrated
configurable PLL.
The CDCx913 has separate output supply pins,
V_DDOUT, which is 1.8 V for CDCEL913 and 2.5 V to
3.3 V for CDCE913.
The input accepts an external crystal or LVCMOS
clock signal. A selectable on-chip VCXO allows
synchronization of the output frequency to an external
control signal.
The PLL supports SSC (spread-spectrum clocking)
for better electromagnetic interference (EMI)
performance.
The device supports nonvolatile EEPROM
programming for easy customization of the device to
the application. All device settings are programmable
through the SDA/SCL bus, a 2-wire serial interface.
The CDCx913 operates in a 1.8-V environment. It
operates in a temperature range of –40°C to 85°C.
Device Information⁽¹⁾
PART NUMBER
PACKAGE
BODY SIZE (NOM)
CDCE913
CDCEL913
TSSOP (14)
5.00 mm × 4.40 mm
(1) For all available packages, see the orderable addendum at
the end of the data sheet.
Typical Application Schematic
Ethernet
CDCE(L)9xx
WiFi
PHY
Clock
USB
Controller
25
MHz
FPGA
2 Applications
D-TVs, STBs, IP-STBs, DVD Players, DVD
Recorders, and Printers
1
An IMPORTANT NOTICE at the end of this data sheet addresses availability, warranty, changes, use in safety-critical applications,
intellectual property matters and other important disclaimers. PRODUCTION DATA.