Overview
The AD9517-4BCPZ, produced by Analog Devices Inc., is a 12-output clock generator that integrates a 1.6 GHz voltage-controlled oscillator (VCO) and a phase-locked loop (PLL). This device is designed to provide low jitter and phase noise, making it ideal for applications that require high precision clock distribution. The AD9517-4 is particularly beneficial for maximizing data converter performance and can be used in various applications with stringent phase noise and jitter requirements.
Key Specifications
| Parameter | Value | Unit | Comments |
|---|---|---|---|
| VCO Frequency Range | 1.45 GHz to 1.80 GHz | GHz | On-chip VCO |
| External VCO/VCXO Frequency Range | Up to 2.4 GHz | GHz | Optional |
| LVPECL Output Frequency | Up to 1.6 GHz | GHz | |
| LVDS Output Frequency | Up to 800 MHz | MHz | |
| CMOS Output Frequency | Up to 250 MHz | MHz | |
| Output Configuration | 4 LVPECL (2 pairs), 4 LVDS (2 pairs), each LVDS can be reconfigured as 2 CMOS | ||
| Supply Voltage | 3.3 V (nominal) | V | Single supply, VCP can be 5 V for external VCO |
| Operating Temperature Range | −40°C to +85°C | °C | Industrial range |
| Package Type | 48-lead LFCSP |
Key Features
- Integrated 1.6 GHz VCO with a tuning range of 1.45 GHz to 1.80 GHz
- Optional external VCO/VCXO up to 2.4 GHz
- Low jitter and phase noise performance
- Four LVPECL outputs (in two pairs) and four LVDS outputs (in two pairs), with each LVDS output reconfigurable as two CMOS outputs
- Dividers for each output pair allowing adjustable divide ratio and coarse delay (or phase)
- Reference monitoring capability and automatic revertive and manual reference switchover/holdover modes
- Single 3.3 V supply operation with optional 5 V charge pump supply for external VCO
- Industrial temperature range operation from −40°C to +85°C
Applications
- Data converters requiring high precision clock distribution
- High performance wireless transceivers
- Automatic test equipment (ATE) and high performance instrumentation
- Digital upconverters (DUCs) and multi-function frequency synthesizers (MxFEs)
Q & A
- What is the primary function of the AD9517-4?
The AD9517-4 is a 12-output clock generator with an integrated 1.6 GHz VCO and PLL, designed for low jitter and phase noise clock distribution.
- What is the frequency range of the on-chip VCO?
The on-chip VCO tunes from 1.45 GHz to 1.80 GHz.
- Can the AD9517-4 use an external VCO/VCXO?
- What types of output signals does the AD9517-4 provide?
The AD9517-4 provides four LVPECL outputs (in two pairs), four LVDS outputs (in two pairs), and each LVDS output can be reconfigured as two CMOS outputs.
- What is the operating frequency range for each type of output?
LVECL outputs operate up to 1.6 GHz, LVDS outputs up to 800 MHz, and CMOS outputs up to 250 MHz.
- What is the supply voltage requirement for the AD9517-4?
The AD9517-4 operates from a single 3.3 V supply, with the option to use a 5 V charge pump supply for an external VCO.
- What is the operating temperature range of the AD9517-4?
The AD9517-4 is specified for operation over the industrial range of −40°C to +85°C.
- What package type is the AD9517-4 available in?
The AD9517-4 is available in a 48-lead LFCSP package.
- What are some common applications for the AD9517-4?
Common applications include data converters, high performance wireless transceivers, ATE, and high performance instrumentation.
- How can the output dividers be configured?
Each pair of outputs has dividers that allow both the divide ratio and coarse delay (or phase) to be set. The LVPECL outputs have a division range of 1 to 32, while the LVDS/CMOS outputs have a division range up to 1024.
