CDCE913数据手册集成电路（IC）的时钟发生器PLL频率合成器规格书PDF

描述 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, VDDOUT, 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.

特性 Features

• 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™)
• APPLICATIONS
• D-TVs, STBs, IP-STBs, DVD Players, DVD Recorders, and Printers

All other trademarks are the property of their respective owners