Overview
The CDCE62005RGZT from Texas Instruments is a high-performance clock generator and jitter cleaner designed for precise timing applications. This device features a unique dual-VCO architecture, supporting a wide tuning range from 1.750 GHz to 2.356 GHz. It is specifically tailored for clocking data converters and high-speed digital signals, achieving low output jitter of less than 1 ps RMS (10 kHz to 20 MHz integration bandwidth). The CDCE62005RGZT incorporates a synthesizer block, a clock distribution block with programmable output formats, and an input block with an innovative smart multiplexer. This component is highly configurable via a SPI interface and includes programmable start-up modes determined by on-chip EEPROM.
Key Specifications
| Parameter | Value | Unit |
|---|---|---|
| Package Type | VQFN (RGZ) | - |
| Pins | 48 | - |
| Operating Temperature Range | -40°C to +85°C | °C |
| Output Frequency Range (Synthesizer Mode) | 4.25 MHz to 1.175 GHz | Hz |
| Output Frequency Range (Fan-Out Mode) | Up to 1.5 GHz | Hz |
| Output Formats | LVPECL, LVDS, LVCMOS, Special High Swing | - |
| Input Frequency Range | 40 kHz to 500 MHz | Hz |
| Supply Voltage Range | 3.0 to 3.6 V | V |
| Jitter Performance (Clock Generator) | 550 fs rms typical (10 kHz to 20 MHz) | fs |
| Jitter Performance (Jitter Cleaner) | 2.6 ps rms typical (10 kHz to 20 MHz) | ps |
Key Features
- Superior Performance: Low noise clock generator and jitter cleaner with jitter performance well under 1 ps RMS.
- Flexible Frequency Planning: 5 fully configurable outputs supporting LVPECL, LVDS, LVCMOS, and special high swing output modes.
- Dual-VCO Architecture: Supports a wide tuning range from 1.750 GHz to 2.356 GHz.
- High Flexibility: Integrated EEPROM determines device configuration at power-up, and a smart input multiplexer automatically switches between one of three reference inputs.
- Programmable Outputs: Each output can be programmed to a unique output frequency and skew relationship via a programmable delay block.
- Compact Packaging: 7-mm × 7-mm 48-Pin VQFN package.
Applications
- Wireless Infrastructure
- Switches and Routers
- Medical Electronics
- Military and Aerospace
- Industrial
Q & A
- What is the primary function of the CDCE62005RGZT? The CDCE62005RGZT is a high-performance clock generator and jitter cleaner designed for precise timing applications.
- What are the supported output formats? The device supports LVPECL, LVDS, LVCMOS, and special high swing output modes.
- What is the tuning range of the dual-VCO architecture? The dual-VCO architecture supports a wide tuning range from 1.750 GHz to 2.356 GHz.
- How many outputs can the CDCE62005RGZT support? The device can support up to 5 fully configurable outputs or up to 10 outputs if all are configured in single-ended mode (e.g., LVCMOS).
- What is the operating temperature range of the CDCE62005RGZT? The operating temperature range is -40°C to +85°C.
- How does the smart input multiplexer work? The smart input multiplexer automatically switches between one of three reference inputs and can operate in manual or automatic mode.
- What is the typical jitter performance of the clock generator? The typical jitter performance is 550 fs rms (10 kHz to 20 MHz integration bandwidth).
- What is the typical jitter performance of the jitter cleaner? The typical jitter performance is 2.6 ps rms (10 kHz to 20 MHz integration bandwidth).
- How is the device configured at power-up? The device configuration at power-up is determined by the integrated EEPROM.
- What interface is used for programming the device? The device is programmed via a SPI interface.
