Overview
The AD9516-4BCPZ-REEL7, produced by Analog Devices Inc., is a 14-output clock generator that integrates a phase-locked loop (PLL) and a voltage-controlled oscillator (VCO). This device is designed to provide multi-output clock distribution with subpicosecond jitter performance, making it ideal for applications requiring low jitter and phase noise. The on-chip VCO tunes from 1.45 GHz to 1.80 GHz, and an external VCO/VCXO up to 2.4 GHz can also be used. The AD9516-4 is optimized for maximizing data converter performance and is suitable for various high-performance applications.
Key Specifications
| Parameter | Value | Unit | Comments |
|---|---|---|---|
| Number of Outputs | 14 | - | 6 LVPECL, 4 LVDS (configurable as CMOS) |
| On-chip VCO Frequency Range | 1.45 GHz to 1.80 GHz | GHz | - |
| 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 | - |
| Divide Ratio (LVPECL) | 1 to 32 | - | - |
| Divide Ratio (LVDS/CMOS) | Up to 1024 | - | - |
| Supply Voltage | 3.3 V | V | Single supply, with optional VCP to 5 V for external VCO |
| Operating Temperature Range | -40°C to +85°C | °C | - |
| Package Type | 64-lead LFCSP | - | 9mm x 9mm with EP |
Key Features
- Low phase noise and subpicosecond jitter performance
- On-chip VCO tunes from 1.45 GHz to 1.80 GHz
- Optional external VCO/VCXO up to 2.4 GHz
- 1 differential or 2 single-ended reference inputs
- Reference monitoring capability
- Automatic revertive and manual reference switchover/holdover modes
- Accepts LVPECL, LVDS, or CMOS references up to 250 MHz
- Programmable delays in path to PFD
- Digital or analog lock detect, selectable
- 6 pairs of 1.6 GHz LVPECL outputs with 1-to-32 dividers and coarse phase delay
- 4 pairs of 800 MHz LVDS clock outputs with cascaded 1-to-32 dividers and coarse phase delay
- Each LVDS output can be reconfigured as two 250 MHz CMOS outputs
- Automatic synchronization of all outputs on power-up and manual output synchronization available
Applications
- Low jitter, low phase noise clock distribution
- 10/40/100 Gb/sec networking line cards, including SONET, 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
Q & A
- What is the frequency range of the on-chip VCO in the AD9516-4?
The on-chip VCO tunes from 1.45 GHz to 1.80 GHz. - Can the AD9516-4 use an external VCO/VCXO?
Yes, an external VCO/VCXO up to 2.4 GHz can be used. - How many outputs does the AD9516-4 have?
The AD9516-4 has 14 outputs: 6 LVPECL outputs and 4 LVDS outputs (which can be reconfigured as CMOS outputs). - What is the operating frequency range for LVPECL, LVDS, and CMOS outputs?
LVPECL outputs operate up to 1.6 GHz, LVDS outputs up to 800 MHz, and CMOS outputs up to 250 MHz. - What is the divide ratio range for LVPECL and LVDS/CMOS outputs?
The divide ratio for LVPECL outputs is 1 to 32, and for LVDS/CMOS outputs, it is up to 1024. - What is the supply voltage for the AD9516-4?
The AD9516-4 operates from a single 3.3 V supply, with optional VCP to 5 V for external VCO. - What is the operating temperature range for the AD9516-4?
The operating temperature range is -40°C to +85°C. - What package type is the AD9516-4 available in?
The AD9516-4 is available in a 64-lead LFCSP package. - What are some typical applications of the AD9516-4?
Typical applications include low jitter clock distribution, high-speed networking, forward error correction, clocking high-speed converters, high-performance wireless transceivers, and ATE and high-performance instrumentation. - Does the AD9516-4 support automatic synchronization of outputs?
Yes, the AD9516-4 supports automatic synchronization of all outputs on power-up and manual output synchronization.
