Overview
The AD9520-5BCPZ-REEL7, produced by Analog Devices Inc., is a high-performance clock generator and distribution IC. This component is designed to provide low jitter and low phase noise, making it ideal for applications requiring precise clock signals. The AD9520-5 features an on-chip PLL that can be used with an external VCO, and it supports both SPI and I²C serial control interfaces. The device includes an in-package EEPROM for storing user-defined register settings for power-up and chip reset.
Key Specifications
| Parameter | Min | Typ | Max | Unit | Test Conditions/Comments |
|---|---|---|---|---|---|
| Power Supply (VS) | 3.135 | 3.3 | 3.465 | V | 3.3 V ± 5% |
| Output Driver Supply (VS_DRV) | 2.375 | - | 3.3 | V | Nominally 2.5 V to 3.3 V ± 5% |
| Operating Temperature | -40 | - | 85 | °C | - |
| LVPECL Output Frequency | - | - | 1.6 GHz | - | - |
| CMOS Output Frequency | - | - | 250 MHz | - | - |
| Output Rise/Fall Time | 130 | 170 | - | ps | 20% to 80%, measured differentially |
| Phase Offset (REF-to-LVPECL) | 560 | 1060 | 1310 | ps | In zero delay mode |
Key Features
- Multioutput clock distribution with 12 LVPECL outputs in four groups, configurable as 24 CMOS outputs.
- On-chip PLL with support for an external VCO.
- SPI and I²C serial control interfaces.
- In-package EEPROM for storing user-defined register settings.
- Automatic synchronization of all outputs on power-up and manual output synchronization available.
- Dividers for each group of outputs allowing both divide ratio (1 to 32) and phase offset or coarse time delay to be set.
- Single 3.3 V supply operation with external VCO operating voltage up to 5.5 V.
- 64-lead LFCSP package.
Applications
- Clock generation and translation for SONET, 10Ge, 10GFC, Synchronous Ethernet, OTU2/3/4.
- Forward error correction (G.710).
- Clocking high-speed ADCs, DACs, DDSs, DDCs, DUCs, MxFEs.
- High-performance wireless transceivers.
- ATE and high-performance instrumentation.
- Broadband infrastructures.
Q & A
- What is the primary function of the AD9520-5BCPZ-REEL7? The primary function is to provide a multioutput clock distribution with low jitter and low phase noise.
- What types of output signals does the AD9520-5BCPZ-REEL7 support? It supports 12 LVPECL outputs and 24 CMOS outputs.
- What is the operating voltage range for the AD9520-5BCPZ-REEL7? The device operates from a single 3.3 V supply, with the external VCO operating up to 5.5 V.
- What interfaces are available for controlling the AD9520-5BCPZ-REEL7? It supports both SPI and I²C serial control interfaces.
- How is the configuration of the AD9520-5BCPZ-REEL7 stored? The configuration is stored in an in-package EEPROM.
- What is the maximum frequency of the LVPECL outputs? The maximum frequency of the LVPECL outputs is 1.6 GHz.
- What is the maximum frequency of the CMOS outputs? The maximum frequency of the CMOS outputs is 250 MHz.
- What is the typical rise/fall time of the LVPECL outputs? The typical rise/fall time is 170 ps.
- What are some common applications of the AD9520-5BCPZ-REEL7? Common applications include clock generation for SONET, 10Ge, high-speed ADCs, and high-performance wireless transceivers.
- What is the package type of the AD9520-5BCPZ-REEL7? It is available in a 64-lead LFCSP package.
