Overview
The AD9576BCPZ-REEL7, produced by Analog Devices Inc., is a dual phase-locked loop (PLL) asynchronous clock generator. This component is designed to provide multiple output clock generation with flexible frequency translation capabilities, making it an ideal solution for systems requiring robust and reliable clock sources. The AD9576 features two dedicated PLL cores: a fractional-N PLL for high-performance, low-jitter frequency synthesis and an integer-N PLL for general-purpose clocks suitable for CPU and FPGA reference clocks. It also includes automatic switchover between redundant crystal inputs to ensure extended operating life within frequency tolerance and minimized switching transients.
Key Specifications
| Parameter | Min | Typ | Max | Unit | Test Conditions/Comments |
|---|---|---|---|---|---|
| Output Frequency (HSTL, OUT0 to OUT3) | - | - | 1000 MHz | - | - |
| Output Frequency (HSTL, OUT4 to OUT7) | - | - | 1250 MHz | - | - |
| Output Rise Time, tRL (HSTL) | 108 ps | 136 ps | 163 ps | - | Measured differentially; output at 100 MHz |
| Output Fall Time, tFL (HSTL) | 108 ps | 136 ps | 161 ps | - | Measured differentially; output at 100 MHz |
| Duty Cycle (HSTL) | 45% | 55% | - | - | - |
| Differential Output Voltage Swing (HSTL) | 861 mV | 1080 mV | 1374 mV | - | Magnitude of voltage across pins; output driver static |
| Common-Mode Output Voltage (HSTL) | 840 mV | 940 mV | 1034 mV | - | Output driver static |
| Operating Temperature Range | -40°C | - | +85°C | - | - |
| Supply Voltage | 2.5 V | - | 3.3 V | - | - |
| Package Type | - | - | 64-Lead LFCSP (9mm x 9mm x 0.75mm) | - | - |
Key Features
- Dual phase-locked loop (PLL) cores: fractional-N PLL for high-performance, low-jitter frequency synthesis and integer-N PLL for general-purpose clocks.
- Flexible frequency translation capability.
- Automatic switchover between redundant crystal inputs to ensure extended operating life within frequency tolerance and minimized switching transients.
- Eleven differential output clocks configurable via pin strapping or serial port interface (SPI).
- Low jitter and high accuracy clock generation suitable for CPU, FPGA, and other high-speed applications.
- Single supply operation at 2.5 V or 3.3 V.
- Operating temperature range of -40°C to +85°C.
- Packaged in a 64-lead LFCSP (9mm x 9mm x 0.75mm).
Applications
- High-speed data communication systems requiring robust and reliable clock sources.
- Telecommunication equipment, including network routers and switches.
- High-performance computing systems, such as servers and data centers.
- FPGA and ASIC development where precise clocking is critical.
- Medical imaging and diagnostic equipment requiring low-jitter clock signals.
Q & A
- What is the primary function of the AD9576BCPZ-REEL7?
The AD9576BCPZ-REEL7 is a dual PLL asynchronous clock generator, providing multiple output clock generation with flexible frequency translation capabilities.
- What types of PLLs are included in the AD9576BCPZ-REEL7?
The AD9576BCPZ-REEL7 includes a fractional-N PLL for high-performance, low-jitter frequency synthesis and an integer-N PLL for general-purpose clocks.
- How does the AD9576BCPZ-REEL7 handle redundant crystal inputs?
The AD9576BCPZ-REEL7 features automatic switchover between redundant crystal inputs to ensure extended operating life within frequency tolerance and minimized switching transients.
- What is the configuration method for the output clocks?
The output clocks can be configured via pin strapping or through a serial port interface (SPI).
- What is the operating temperature range of the AD9576BCPZ-REEL7?
The operating temperature range is -40°C to +85°C.
- What are the supply voltage options for the AD9576BCPZ-REEL7?
The AD9576BCPZ-REEL7 can operate with a single supply voltage of either 2.5 V or 3.3 V.
- What is the package type of the AD9576BCPZ-REEL7?
The AD9576BCPZ-REEL7 is packaged in a 64-lead LFCSP (9mm x 9mm x 0.75mm).
- What are some typical applications of the AD9576BCPZ-REEL7?
Typical applications include high-speed data communication systems, telecommunication equipment, high-performance computing systems, FPGA and ASIC development, and medical imaging equipment.
- How many output clocks does the AD9576BCPZ-REEL7 provide?
The AD9576BCPZ-REEL7 provides eleven differential output clocks.
- What is the significance of the differential output voltage swing in the AD9576BCPZ-REEL7?
The differential output voltage swing is a measure of the magnitude of voltage across the output pins, indicating the signal strength and quality.
