產品詳細資料

Function Clock synthesizer Number of outputs 5 Output frequency (max) (MHz) 230 Core supply voltage (V) 1.8 Output supply voltage (V) 2.5, 3.3 Input type LVCMOS, XTAL Output type LVCMOS Operating temperature range (°C) -40 to 85 Features Integrated EEPROM, Multiplier or divider, Spread-spectrum clocking (SSC) Rating Catalog
Function Clock synthesizer Number of outputs 5 Output frequency (max) (MHz) 230 Core supply voltage (V) 1.8 Output supply voltage (V) 2.5, 3.3 Input type LVCMOS, XTAL Output type LVCMOS Operating temperature range (°C) -40 to 85 Features Integrated EEPROM, Multiplier or divider, Spread-spectrum clocking (SSC) Rating Catalog
TSSOP (PW) 16 32 mm² 5 x 6.4
  • Member of Programmable Clock Generator Family
    • CDCEx913: 1-PLL, 3 Outputs
    • CDCEx925: 2-PLL, 5 Outputs
    • CDCEx925: 3-PLL, 7 Outputs
    • CDCEx949: 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 60 ps)
  • Separate Output Supply Pins
    • CDCE925: 3.3 V and 2.5 V
    • CDCEL925: 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

  • Member of Programmable Clock Generator Family
    • CDCEx913: 1-PLL, 3 Outputs
    • CDCEx925: 2-PLL, 5 Outputs
    • CDCEx925: 3-PLL, 7 Outputs
    • CDCEx949: 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 60 ps)
  • Separate Output Supply Pins
    • CDCE925: 3.3 V and 2.5 V
    • CDCEL925: 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

The CDCE925 and CDCEL925 are modular PLL-based low-cost, high-performance, programmable clock synthesizers, multipliers, and dividers. They generate up to five output clocks from a single input frequency. Each output can be programmed in-system for any clock frequency up to 230 MHz, using up to two independent configurable PLLs.

The CDCEx925 has a separate output supply pin, VDDOUT, which is 1.8 V for CDCEL925 and 2.5 V to 3.3 V for CDCE925.

The input accepts an external crystal or LVCMOS clock signal. In case of a crystal input, an on-chip load capacitor is adequate for most applications. The value of the load capacitor is programmable from 0 to 20 pF. Additionally, an on-chip VCXO is selectable which allows synchronization of the output frequency to an external control signal, that is, PWM signal.

The deep M/N divider ratio allows the generation of zero-ppm audio/video, networking (WLAN, Bluetooth, Ethernet, GPS), or interface (USB, IEEE1394, memory stick) clocks from a 27-MHz reference input frequency, for example.

All PLLs support SSC (spread-spectrum clocking). SSC can be center-spread or down-spread clocking, which is a common technique to reduce electromagnetic interference (EMI).

Based on the PLL frequency and the divider settings, the internal loop filter components are automatically adjusted to achieve high stability and optimized jitter transfer characteristic of each PLL.

The device supports nonvolatile EEPROM programming for easy customization of the device in the application. It is preset to a factory default configuration and can be reprogrammed to a different application configuration before it goes onto the PCB or reprogrammed by in-system programming. All device settings are programmable through the SDA/SCL bus, a 2-wire serial interface.

Three, free programmable control inputs, S0, S1, and S2, can be used to select different frequencies, or change the SSC setting for lowering EMI, or other control features like outputs disable to low, outputs in high-impedance state, power down, PLL bypass, and so forth.

The CDCx925 operates in a 1.8-V environment and in a temperature range of –40°C to 85°C.

The CDCE925 and CDCEL925 are modular PLL-based low-cost, high-performance, programmable clock synthesizers, multipliers, and dividers. They generate up to five output clocks from a single input frequency. Each output can be programmed in-system for any clock frequency up to 230 MHz, using up to two independent configurable PLLs.

The CDCEx925 has a separate output supply pin, VDDOUT, which is 1.8 V for CDCEL925 and 2.5 V to 3.3 V for CDCE925.

The input accepts an external crystal or LVCMOS clock signal. In case of a crystal input, an on-chip load capacitor is adequate for most applications. The value of the load capacitor is programmable from 0 to 20 pF. Additionally, an on-chip VCXO is selectable which allows synchronization of the output frequency to an external control signal, that is, PWM signal.

The deep M/N divider ratio allows the generation of zero-ppm audio/video, networking (WLAN, Bluetooth, Ethernet, GPS), or interface (USB, IEEE1394, memory stick) clocks from a 27-MHz reference input frequency, for example.

All PLLs support SSC (spread-spectrum clocking). SSC can be center-spread or down-spread clocking, which is a common technique to reduce electromagnetic interference (EMI).

Based on the PLL frequency and the divider settings, the internal loop filter components are automatically adjusted to achieve high stability and optimized jitter transfer characteristic of each PLL.

The device supports nonvolatile EEPROM programming for easy customization of the device in the application. It is preset to a factory default configuration and can be reprogrammed to a different application configuration before it goes onto the PCB or reprogrammed by in-system programming. All device settings are programmable through the SDA/SCL bus, a 2-wire serial interface.

Three, free programmable control inputs, S0, S1, and S2, can be used to select different frequencies, or change the SSC setting for lowering EMI, or other control features like outputs disable to low, outputs in high-impedance state, power down, PLL bypass, and so forth.

The CDCx925 operates in a 1.8-V environment and in a temperature range of –40°C to 85°C.

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類型 標題 日期
* Data sheet CDCE(L)925: Flexible Low Power LVCMOS Clock Generator With SSC Support for EMI Reduction datasheet (Rev. I) PDF | HTML 2016年 10月 27日
Application note VCXO Application Guideline for CDCE(L)9xx Family (Rev. A) 2012年 4月 23日
User guide CDCE(L)9XX & CDCEx06 Programming Evaluation Module Manual (Rev. A) 2010年 11月 22日
User guide CDCE(L)9xx Performance Evaluation Module (Rev. A) 2010年 7月 7日
Application note General I2C / EEPROM usage for the CDCE(L)9xx family 2010年 1月 26日
Application note Troubleshooting I2C Bus Protocol 2009年 10月 19日
Application note Usage of I2C for CDCE(L)949, CDCE(L)937, CDCE(L)925, CDCE(L)913 2009年 9月 23日
User guide CDCE(L)9XX & CDCEx06 Programming Evaluation Module Manual 2008年 12月 9日
Application note Generating Low Phase-Noise Clocks for Audio Data Converters from Low Frequency 2008年 3月 31日
Application note Practical consideration on choosing a crystal for CDCE(L)9xx family 2008年 3月 24日

設計與開發

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開發板

CDCE925PERF-EVM — CDCE925 性能評估模組

The CDCE925Perf-Evaluation Module allows the verification of the functionality and performance of CDCE925 and CDCEL925 with the options of crystal and 1.8 V LVCMOS inputs. The outputs can be connected to the Oscilloscope directly with SMA cables.

使用指南: PDF
TI.com 無法提供
開發板

CDCEL9XXPROGEVM — CDCE(L)949 系列 EEPROM 程式設計基板

The clock generator CDCE(L)949 family has integrated EEPROM that allows the default frequency settings to be saved upon start up. CDCEL9XXPROGEVM is a programming board that allows a fast programming of prototyping samples or small production quantities. It applies to all 8 devices in the family: (...)

使用指南: PDF
TI.com 無法提供
開發板

DP83822EVM — DP83822I 10 Mbps 和 100 Mbps 乙太網路 PHY 評估模組

DP83822EVM 支援 100BASE-FX、100BASE-TX 和 10BASE-Te。此設計已通過 UNH 測試和驗證,符合相關規範。其亦通過 A 類排放認證,額定值為 ±8-kV IEC61000-4-2 (觸點放電)。

DP83822EVM 包含兩個板載狀態 LED,以及一個具有板載 LDO 穩壓器的 5-V USB 連接器。此 EVM 可使用 USB-2 MDIO 工具進行 SMI 存取。4 級束帶讓您無須直接存取 PHY 暫存器即可配置系統。外部電源供應器可連接至各指定電壓軌,以進行額外系統評估。DP83822EVM 支援節能乙太網路、區域網路喚醒、訊框起始偵測 IEEE (...)

使用指南: PDF
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應用軟體及架構

SCAC097 Executable File Without LabVIEW 8.2 Run Time Engine

支援產品和硬體

支援產品和硬體

產品
時鐘產生器
CDCE706 300-MHz、LVCMOS、可編程的 3-PLL 時脈合成器/倍頻器/分頻器 CDCE906 167-MHz、LVCMOS、可編程的 3-PLL 時脈合成器/倍頻器/分頻器 CDCE913 具 2.5-V 或 3.3-V LVCMOS 輸出的可編程 1-PLL VCXO 時脈合成器 CDCE925 具 2.5-V 或 3.3-V LVCMOS 輸出的可編程 2-PLL VCXO 時脈合成器 CDCE937 具 2.5-V 或 3.3-V LVCMOS 輸出的可編程 3-PLL VCXO 時脈合成器 CDCE949 具 2.5-V 或 3.3-V LVCMOS 輸出的可編程 4-PLL VCXO 時脈合成器
驅動程式或資料庫

CDCE925SW-LINUX — 適用於 CDCE925 的 Linux 驅動程式

The Linux driver supports the CDCE925 Programmable 2-PLL VCXO Clock Synthesizer with 2.5-V or 3.3-V LVCMOS Outputs. The Linux driver supports communication through the I2C bus.
Linux Mainline Status

Available in Linux Main line: Yes
Available through git.ti.com: N/A

Supported Devices:
  • cdce925
Linux (...)
驅動程式或資料庫

SCAC131 Drivers for the CDCEL9xx programmer EVM

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支援產品和硬體

產品
時鐘產生器
CDCE913 具 2.5-V 或 3.3-V LVCMOS 輸出的可編程 1-PLL VCXO 時脈合成器 CDCE925 具 2.5-V 或 3.3-V LVCMOS 輸出的可編程 2-PLL VCXO 時脈合成器 CDCE937 具 2.5-V 或 3.3-V LVCMOS 輸出的可編程 3-PLL VCXO 時脈合成器 CDCE949 具 2.5-V 或 3.3-V LVCMOS 輸出的可編程 4-PLL VCXO 時脈合成器 CDCEL913 具 1.8-V LVCMOS 輸出的可編程 1-PLL VCXO 時脈合成器 CDCEL925 具 1.8-V LVCMOS 輸出的可編程 2-PLL VCXO 時脈合成器 CDCEL937 具 1.8-V LVCMOS 輸出的可編程 3-PLL VCXO 時脈合成器 CDCEL949 具 1.8-V LVCMOS 輸出的可編程 4-PLL VCXO 時脈合成器
硬體開發
開發板
CDCE906-706PROGEVM CDCE906 和 CDCE706 可編程 EVM CDCE925PERF-EVM CDCE925 性能評估模組 CDCE949PERF-EVM CDCE949 性能評估模組 CDCEL913PERF-EVM CDCEL913 性能評估模組 CDCEL925PERF-EVM CDCEL925 性能評估模組 CDCEL949PERF-EVM CDCEL949 性能評估模組
支援軟體

CLOCKPRO ClockPro Software

TI's ClockPro software allows users to program/configure the following devices in a friendly GUI interface:

  • CDCE949
  • CDCE937
  • CDCE925
  • CDCE913
  • CDCE906
  • CDCE706
  • CDCEL949
  • CDCEL937
  • CDCEL925
  • CDCEL913

It is intended to be used with the evaluation modules of the above devices.

支援產品和硬體

支援產品和硬體

產品
時鐘產生器
CDCE706 300-MHz、LVCMOS、可編程的 3-PLL 時脈合成器/倍頻器/分頻器 CDCE906 167-MHz、LVCMOS、可編程的 3-PLL 時脈合成器/倍頻器/分頻器 CDCE913 具 2.5-V 或 3.3-V LVCMOS 輸出的可編程 1-PLL VCXO 時脈合成器 CDCE925 具 2.5-V 或 3.3-V LVCMOS 輸出的可編程 2-PLL VCXO 時脈合成器 CDCE937 具 2.5-V 或 3.3-V LVCMOS 輸出的可編程 3-PLL VCXO 時脈合成器 CDCE949 具 2.5-V 或 3.3-V LVCMOS 輸出的可編程 4-PLL VCXO 時脈合成器 CDCEL913 具 1.8-V LVCMOS 輸出的可編程 1-PLL VCXO 時脈合成器 CDCEL925 具 1.8-V LVCMOS 輸出的可編程 2-PLL VCXO 時脈合成器 CDCEL937 具 1.8-V LVCMOS 輸出的可編程 3-PLL VCXO 時脈合成器 CDCEL949 具 1.8-V LVCMOS 輸出的可編程 4-PLL VCXO 時脈合成器
硬體開發
開發板
CDCE906-706PROGEVM CDCE906 和 CDCE706 可編程 EVM CDCE913PERF-EVM CDCE913 性能評估模組 CDCE925PERF-EVM CDCE925 性能評估模組 CDCE949PERF-EVM CDCE949 性能評估模組 CDCEL913PERF-EVM CDCEL913 性能評估模組 CDCEL925PERF-EVM CDCEL925 性能評估模組 CDCEL949PERF-EVM CDCEL949 性能評估模組 CDCEL9XXPROGEVM CDCE(L)949 系列 EEPROM 程式設計基板
軟體
軟體程式設計工具
CLOCKPRO ClockPro™ 程式設計軟體
支援軟體

SCAC073 TI-Pro-Clock Programming Software

支援產品和硬體

支援產品和硬體

產品
時鐘產生器
CDC706 200-MHz、LVCMOS、客製編程的 3-PLL 時脈合成器、倍頻器和分頻器 CDC906 167-MHz、LVCMOS、客製編程的 3-PLL 時脈合成器、倍頻器和分頻器 CDCE706 300-MHz、LVCMOS、可編程的 3-PLL 時脈合成器/倍頻器/分頻器 CDCE906 167-MHz、LVCMOS、可編程的 3-PLL 時脈合成器/倍頻器/分頻器 CDCE913 具 2.5-V 或 3.3-V LVCMOS 輸出的可編程 1-PLL VCXO 時脈合成器 CDCE925 具 2.5-V 或 3.3-V LVCMOS 輸出的可編程 2-PLL VCXO 時脈合成器 CDCE937 具 2.5-V 或 3.3-V LVCMOS 輸出的可編程 3-PLL VCXO 時脈合成器 CDCE949 具 2.5-V 或 3.3-V LVCMOS 輸出的可編程 4-PLL VCXO 時脈合成器 CDCEL913 具 1.8-V LVCMOS 輸出的可編程 1-PLL VCXO 時脈合成器 CDCEL925 具 1.8-V LVCMOS 輸出的可編程 2-PLL VCXO 時脈合成器 CDCEL937 具 1.8-V LVCMOS 輸出的可編程 3-PLL VCXO 時脈合成器 CDCEL949 具 1.8-V LVCMOS 輸出的可編程 4-PLL VCXO 時脈合成器
設計工具

CLOCK-TREE-ARCHITECT — 時鐘樹架構程式設計軟體

Clock tree architect is a clock tree synthesis tool that streamlines your design process by generating clock tree solutions based on your system requirements. The tool pulls data from an extensive database of clocking products to generate a system-level multi-chip clocking solution.
模擬工具

PSPICE-FOR-TI — PSpice® for TI 設計與模擬工具

PSpice® for TI is a design and simulation environment that helps evaluate functionality of analog circuits. This full-featured, design and simulation suite uses an analog analysis engine from Cadence®. Available at no cost, PSpice for TI includes one of the largest model libraries in the (...)
封裝 針腳 CAD 符號、佔位空間與 3D 模型
TSSOP (PW) 16 Ultra Librarian

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  • 認證摘要
  • 進行中持續性的可靠性監測
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  • 晶圓廠位置
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