Overview
The CDCE913PWRG4, produced by Texas Instruments, is a programmable 1-PLL VCXO clock synthesizer. It is part of the CDCE(L)913 family, which includes devices with various PLL and output configurations. The CDCE913 specifically generates up to three output clocks from a single input frequency, making it a versatile component for a wide range of applications. This device is known for its high performance, low cost, and flexibility in clock generation, making it suitable for use in various electronic systems.
Key Specifications
| Parameter | Description | Value |
|---|---|---|
| Number of PLLs | 1 | - |
| Number of Outputs | 3 | - |
| Input Clock Frequency | External crystal or LVCMOS clock signal | 8 MHz to 32 MHz |
| Output Frequency Range | Up to 230 MHz | - |
| Output Supply Voltage | CDCE913: 2.5V or 3.3V, CDCEL913: 1.8V | - |
| VCXO Pull Range | ±150 ppm | - |
| Period Jitter | Typical 50 ps | - |
| Temperature Range | -40°C to 85°C | - |
| Package Type | TSSOP, 14-pin | 5mm × 6.4mm |
Key Features
- In-system programmability and nonvolatile EEPROM to store customer settings.
- Flexible input clocking concept with support for external crystal or LVCMOS clock signal.
- Selectable on-chip VCXO for synchronization of the output frequency to an external control signal.
- Low-noise PLL core with integrated PLL loop filter components.
- Support for spread-spectrum clocking (SSC) to reduce electromagnetic interference (EMI).
- Three user-definable control inputs (S0, S1, S2) for functions like SSC selection, frequency switching, output enable, or power down.
- Separate output supply pins (VDDOUT) for flexible power management.
- Low period jitter (typical 50 ps) and high accuracy in clock generation.
Applications
- Generation of highly accurate clocks for video, audio, USB, IEEE1394, RFID, Bluetooth, WLAN, Ethernet, and GPS applications.
- Common clock frequencies used with TI DaVinci, OMAP, and DSPs.
- Networking and interface applications such as WLAN, Bluetooth, Ethernet, and USB.
- Zero-ppm audio/video and interface clocks from a reference input frequency.
Q & A
- What is the CDCE913PWRG4 used for?
The CDCE913PWRG4 is a programmable clock synthesizer used to generate highly accurate clocks for various applications such as video, audio, USB, and networking.
- How many output clocks can the CDCE913 generate?
The CDCE913 can generate up to three output clocks from a single input frequency.
- What is the range of the output frequency for the CDCE913?
The output frequency range for the CDCE913 is up to 230 MHz.
- What types of input clock signals does the CDCE913 support?
The CDCE913 supports external crystal or LVCMOS clock signals.
- What is the temperature range for the CDCE913?
The CDCE913 operates in a temperature range of -40°C to 85°C.
- Does the CDCE913 support spread-spectrum clocking (SSC)?
- How is the CDCE913 programmed?
The CDCE913 is programmed through the SDA/SCL bus, a 2-wire serial interface, and supports nonvolatile EEPROM programming.
- What are the user-definable control inputs used for on the CDCE913?
The three user-definable control inputs (S0, S1, S2) can be used for functions such as SSC selection, frequency switching, output enable, or power down.
- What is the package type and size of the CDCE913?
The CDCE913 is packaged in a 14-pin TSSOP with a size of 5mm × 6.4mm.
- What are some common applications of the CDCE913?
The CDCE913 is used in applications such as video, audio, USB, IEEE1394, RFID, Bluetooth, WLAN, Ethernet, and GPS.
