Overview
The AD9520-4BCPZ, produced by Analog Devices Inc., is a high-performance clock generator and distribution IC. It features a multioutput clock distribution function with subpicosecond jitter performance, an on-chip PLL, and a VCO. The on-chip VCO tunes from 1.4 GHz to 1.8 GHz, and an external 3.3 V/5 V VCO/VCXO of up to 2.4 GHz can also be used. This device is designed to provide flexible and precise clock generation and distribution, making it suitable for various high-frequency applications.
Key Specifications
| Parameter | Value | Unit | Comments |
|---|---|---|---|
| Number of Outputs | 12 LVPECL / 24 CMOS | - | Configurable outputs |
| VCO Frequency Range | 1.4 GHz to 1.8 GHz | GHz | On-chip VCO |
| External VCO/VCXO Frequency | Up to 2.4 GHz | GHz | External option |
| Supply Voltage | 3.3 V | V | Main supply voltage |
| Output Driver Power Supply | 2.375 V to 3.465 V | V | Separate power supply for output drivers |
| Operating Temperature Range | −40°C to +85°C | °C | Industrial temperature range |
| Package Type | 64-lead LFCSP | - | Package type and pin count |
| Serial Interface | SPI and I²C | - | Supported serial interfaces |
| EEPROM | In-package, programmable through serial interface | - | For storing user-defined register settings |
Key Features
- Multioutput Clock Distribution: Provides 12 LVPECL outputs in four groups, with the option to reconfigure any of the LVPECL outputs as two 250 MHz CMOS outputs.
- On-Chip PLL and VCO: Features an on-chip PLL and VCO with a frequency range of 1.4 GHz to 1.8 GHz.
- External VCO/VCXO Support: Can use an external 3.3 V/5 V VCO/VCXO up to 2.4 GHz.
- Flexible Output Configuration: Each group of three outputs has a divider that allows setting both the divide ratio (from 1 to 32) and the phase offset or coarse time delay.
- Serial Interface: Supports both SPI and I²C ports for programming and control.
- In-Package EEPROM: Allows storing user-defined register settings for power-up and chip reset through the serial interface.
- Low Jitter Performance: Subpicosecond jitter performance, making it suitable for high-frequency and precision applications.
Applications
- High Performance Wireless Transceivers: Suitable for use in advanced wireless communication systems.
- ATE and High Performance Instrumentation: Used in automated test equipment and other high-performance instrumentation.
- Broadband Infrastructures: Applicable in broadband communication infrastructure systems.
- DACs, DDSs, DDCs, DUCs, and MxFEs: Used in various digital signal processing and conversion applications.
Q & A
- What is the primary function of the AD9520-4BCPZ?
The AD9520-4BCPZ is a multioutput clock distribution IC with integrated PLL and VCO, providing high-performance clock generation and distribution.
- What is the frequency range of the on-chip VCO?
The on-chip VCO tunes from 1.4 GHz to 1.8 GHz.
- Can the AD9520-4BCPZ 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 outputs does the AD9520-4BCPZ provide?
The AD9520-4BCPZ provides 12 LVPECL outputs, which can be reconfigured as 24 CMOS outputs.
- What is the operating temperature range of the AD9520-4BCPZ?
The operating temperature range is −40°C to +85°C.
- What serial interfaces are supported by the AD9520-4BCPZ?
The AD9520-4BCPZ supports both SPI and I²C serial interfaces.
- Does the AD9520-4BCPZ have an in-package EEPROM?
Yes, it has an in-package EEPROM that can be programmed through the serial interface.
- What is the package type of the AD9520-4BCPZ?
The AD9520-4BCPZ is available in a 64-lead LFCSP package.
- What are some typical applications of the AD9520-4BCPZ?
Typical applications include high-performance wireless transceivers, ATE, high-performance instrumentation, and broadband infrastructures.
- How can the output configuration of the AD9520-4BCPZ be adjusted?
The output configuration can be adjusted using dividers that allow setting both the divide ratio (from 1 to 32) and the phase offset or coarse time delay for each group of outputs.
