CDCE913中文資料具有 2.5V 或 3.3V LVCMOS 輸出的可編程 1-PLL VCXO 時(shí)鐘合成器數(shù)據(jù)手冊(cè)TI規(guī)格書

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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簡(jiǎn)介

CDCE913屬于集成電路（IC）的時(shí)鐘發(fā)生器PLL頻率合成器。由TI制造生產(chǎn)的CDCE913時(shí)鐘發(fā)生器，PLL，頻率合成器時(shí)鐘發(fā)生器、PLL 和頻率合成器集成電路 (IC) 可為邏輯器件提供參考信號(hào)的穩(wěn)定定時(shí)脈沖，這些器件包括計(jì)算機(jī)、微控制器、數(shù)據(jù)通信系統(tǒng)和圖形/視頻發(fā)生器。這些集成電路可能包括緩沖器、驅(qū)動(dòng)器、分頻器、倍頻器、多路復(fù)用器、合成器、扇出分配器和預(yù)分頻器。