CDCE913中文资料具有 2.5V 或 3.3V LVCMOS 输出的可编程 1-PLL VCXO 时钟合成器数据手册TI规格书

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
• CDCE925/CDCEL925: 2-PLL, 5 Outputs
• CDCE949/CDCEL949: 4-PLL, 9 Outputs
• In-System Programmability and EEPROM
• Nonvolatile EEPROM to Store Customer Settings
• Flexible Input Clocking Concept
• On-Chip VCXO: Pull Range ±150 ppm
• Free Selectable Output Frequency Up to 230  MHz
• PLL Loop Filter Components Integrated
• Separate Output Supply Pins
• CDCEL913: 1.8 V
• Flexible Clock Driver
• Generates Highly Accurate Clocks for Video, Audio, USB, IEEE1394, RFID, Bluetooth®, WLAN, Ethernet™, and GPS
• Programmable SSC Modulation
• 1.8-V Device Power Supply
• Packaged in TSSOP
• APPLICATIONS
• D-TVs, STBs, IP-STBs, DVD Players, DVD Recorders, and Printers

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