Overview
The AD9522-3BCPZ, produced by Analog Devices Inc., is a highly versatile clock generator and distribution IC. It features an integrated 2 GHz VCO and provides a multioutput clock distribution function with subpicosecond jitter performance. This device is designed to meet the stringent requirements of various high-speed applications, including networking, high-speed data conversion, and wireless transceivers.
The AD9522-3BCPZ supports both SPI and I²C serial interfaces and includes an in-package EEPROM for storing user-defined register settings. It operates from a single 3.3 V supply and is available in a 64-lead LFCSP package.
Key Specifications
| Parameter | Min | Typ | Max | Unit | Comments |
|---|---|---|---|---|---|
| Supply Voltage | 3.135 V | - | 3.465 V | V | Single supply operation |
| Operating Temperature | -40°C | - | 85°C | °C | Industrial range |
| VCO Frequency Range | 1.72 GHz | - | 2.25 GHz | GHz | On-chip VCO |
| External VCO/VCXO Frequency | - | - | 2.4 GHz | GHz | Optional external VCO/VCXO |
| LVDS Output Frequency | - | - | 800 MHz | MHz | Each group can be reconfigured as 250 MHz CMOS outputs |
| Output Configuration | - | - | 12 LVDS or 24 CMOS | - | Four groups of outputs |
| Divider Ratio | 1 | - | 32 | - | Per group of outputs |
| Package Type | - | - | 64-Lead LFCSP (9mm x 9mm w/ EP) | - | Surface mount |
Key Features
- Integrated 2 GHz VCO: The on-chip VCO tunes from 1.72 GHz to 2.25 GHz, and an external 3.3 V/5 V VCO/VCXO up to 2.4 GHz can also be used.
- Multioutput Clock Distribution: Provides 12 LVDS outputs in four groups, with the option to reconfigure any LVDS output as two 250 MHz CMOS outputs.
- Flexible Configuration: Supports various reference frequencies, PFD comparison frequencies, VCO frequencies, and loop dynamics through programmable register settings.
- Dual Reference Inputs: Accepts one differential or two single-ended reference inputs, with automatic revertive and manual PLL reference clock switching.
- Low Jitter Performance: Subpicosecond jitter performance, making it suitable for high-speed applications.
- Serial Interface: Supports both SPI and I²C interfaces, with an in-package EEPROM for storing user-defined register settings.
- Operating Temperature Range: Specified for operation over the standard industrial range of -40°C to +85°C.
Applications
- Networking: Supports redundant references and automatic holdover functions, making it suitable for networking applications.
- High-Speed Data Conversion: Ideal for clocking high-speed ADCs, DACs, DDSs, DDCs, DUCs, and MxFEs.
- Wireless Transceivers: Used in high-performance wireless transceivers due to its low jitter and flexible configuration.
- ATE and High-Performance Instrumentation: Suitable for automated test equipment and high-performance instrumentation.
- Broadband Infrastructures: Used in broadband infrastructure applications requiring high-speed clock distribution).
Q & A
- What is the frequency range of the on-chip VCO in the AD9522-3BCPZ?
The on-chip VCO tunes from 1.72 GHz to 2.25 GHz.
- Can the AD9522-3BCPZ use an external VCO/VCXO?
Yes, it can use an external 3.3 V/5 V VCO/VCXO up to 2.4 GHz.
- What types of output configurations are available on the AD9522-3BCPZ?
The device provides 12 LVDS outputs in four groups, which can be reconfigured as 24 CMOS outputs.
- What is the operating temperature range of the AD9522-3BCPZ?
The device operates over the standard industrial range of -40°C to +85°C.
- Does the AD9522-3BCPZ support both SPI and I²C interfaces?
Yes, it supports both SPI and I²C serial interfaces.
- What is the purpose of the in-package EEPROM in the AD9522-3BCPZ?
The in-package EEPROM stores user-defined register settings for power-up and chip reset.
- Can the AD9522-3BCPZ handle redundant reference inputs?
Yes, it supports automatic revertive and manual PLL reference clock switching between two single-ended reference inputs.
- What are some common applications of the AD9522-3BCPZ?
Common applications include networking, high-speed data conversion, wireless transceivers, ATE, and high-performance instrumentation.
- What is the package type of the AD9522-3BCPZ?
The device is available in a 64-lead LFCSP (9mm x 9mm w/ EP) package.
- Is the AD9522-3BCPZ lead-free and RoHS compliant?
Yes, it is lead-free and RoHS compliant.
