Overview
The AD9552BCPZ-REEL7, manufactured by Analog Devices Inc., is a fractional-N phase locked loop (PLL) based clock generator. This device is designed to replace high-frequency crystal oscillators and resonators by converting a low-frequency input reference signal to a high-frequency output signal. It is particularly useful in applications requiring precise frequency synthesis and low jitter.
Key Specifications
| Attribute | Value |
|---|---|
| Manufacturer | Analog Devices Inc. |
| Part Number | AD9552BCPZ-REEL7 |
| Package | LFCSP-32 (5x5 mm) |
| Input Frequencies | 6.6 MHz to 112.5 MHz |
| Output Frequencies | Up to 900 MHz |
| Supply Voltage | 3.3 V |
| Power Consumption | < 400 mW (typical) |
| Operating Temperature | -40°C to +85°C |
| RMS Jitter | < 0.5 ps |
| Output Logic Levels | LVPECL, LVDS, CMOS |
| Programming Interface | 3-wire SPI |
Key Features
- Fractional-N PLL with sigma-delta modulator (SDM) for precise frequency synthesis.
- Preset pin programmable frequency translation ratios and arbitrary frequency translation ratios via SPI port.
- Accepts a crystal resonator and/or an external oscillator as a reference frequency source.
- Secondary output (either integer-related to the primary output or a copy of the reference input).
- Low power consumption and small package size (5 mm x 5 mm).
- Compatible with LVPECL, LVDS, and single-ended CMOS logic levels.
- PLL locked indicator and internal power-on reset circuit.
Applications
- SONET/SDH (including FEC), 10 Gb Ethernet, Fibre Channel, and DOCSIS.
- High-definition video frequency translation.
- Wireless infrastructure.
- Test and measurement (including handheld devices).
- Cost-effective replacement of high-frequency VCXO, OCXO, and SAW resonators.
Q & A
- What is the primary function of the AD9552BCPZ-REEL7?
The AD9552BCPZ-REEL7 is a fractional-N phase locked loop (PLL) based clock generator designed to convert a low-frequency input reference signal to a high-frequency output signal.
- What are the input and output frequency ranges of the AD9552BCPZ-REEL7?
The input frequencies range from 6.6 MHz to 112.5 MHz, and the output frequencies can go up to 900 MHz.
- What types of logic levels are supported by the AD9552BCPZ-REEL7?
The device supports LVPECL, LVDS, and single-ended CMOS logic levels.
- How is the AD9552BCPZ-REEL7 programmed?
The device can be programmed using a 3-wire SPI interface, allowing for custom input-to-output frequency ratios.
- What is the operating temperature range of the AD9552BCPZ-REEL7?
The device operates over the extended industrial temperature range of -40°C to +85°C.
- What is the typical power consumption of the AD9552BCPZ-REEL7?
The typical power consumption is less than 400 mW.
- What are some common applications of the AD9552BCPZ-REEL7?
Common applications include SONET/SDH, 10 Gb Ethernet, Fibre Channel, DOCSIS, high-definition video, wireless infrastructure, and test and measurement.
- Does the AD9552BCPZ-REEL7 support multiple output configurations?
Yes, it supports a secondary output that can be either integer-related to the primary output or a copy of the reference input.
- How does the AD9552BCPZ-REEL7 handle power-on reset?
The device has an internal power-on reset circuit that initiates VCO calibration using the external reference or crystal oscillator input.
- What is the significance of the PLL locked indicator in the AD9552BCPZ-REEL7?
The PLL locked indicator provides a status signal indicating when the PLL has achieved lock, ensuring the output frequency is stable.
