Overview
The AD9516-0BCPZ from Analog Devices Inc. is a 14-output clock generator integrated with a 2.8 GHz Voltage-Controlled Oscillator (VCO). This device is designed to provide high-performance clock distribution with subpicosecond jitter, making it ideal for applications requiring low phase noise and jitter. The AD9516-0 features an on-chip PLL and VCO, which can be optionally supplemented with an external VCO/VCXO up to 2.4 GHz. The device is optimized for use in various high-speed applications, including data converters, wireless transceivers, and high-performance instrumentation.
Key Specifications
| Parameter | Value | Unit | Comments |
|---|---|---|---|
| VCO Frequency Range | 2.55 GHz to 2.95 GHz | GHz | On-chip VCO range |
| External VCO/VCXO Range | Up to 2.4 GHz | GHz | Optional external VCO/VCXO range |
| LVPECL Outputs | 6 (in 3 pairs) | - | Operate up to 1.6 GHz |
| LVDS Outputs | 4 (in 2 pairs) | - | Operate up to 800 MHz, reconfigurable as CMOS outputs |
| CMOS Outputs | Up to 8 (from LVDS reconfiguration) | - | Operate up to 250 MHz |
| Output Jitter (LVPECL) | 225 fs rms | fs | Additive output jitter |
| Output Jitter (LVDS) | 275 fs rms | fs | Additive output jitter |
| Channel-to-Channel Skew | < 10 ps | ps | Paired outputs |
| Supply Voltage | 3.3 V (nominal) | V | Single supply operation |
| Operating Temperature | -40°C to +85°C | °C | Industrial temperature range |
| Package | 64-lead LFCSP | - | 9mm x 9mm with exposed pad |
Key Features
- Low phase noise and phase-locked loop (PLL) for high-performance clock distribution
- On-chip VCO tunes from 2.55 GHz to 2.95 GHz, with optional external VCO/VCXO up to 2.4 GHz
- 1 differential or 2 single-ended reference inputs
- Reference monitoring capability and automatic revertive and manual reference switchover/holdover modes
- Six LVPECL outputs (in three pairs) operating up to 1.6 GHz, and four LVDS outputs (in two pairs) operating up to 800 MHz, reconfigurable as CMOS outputs
- Programmable delays and dividers for each output pair
- Digital or analog lock detect, selectable
- Subpicosecond jitter performance
- Single 3.3 V supply operation with optional extended voltage range for external VCO
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 AD9516-0?
The on-chip VCO tunes from 2.55 GHz to 2.95 GHz.
- Can the AD9516-0 use an external VCO/VCXO?
- How many LVPECL and LVDS outputs does the AD9516-0 have?
The AD9516-0 has six LVPECL outputs (in three pairs) and four LVDS outputs (in two pairs).
- What is the maximum frequency for LVPECL, LVDS, and CMOS outputs?
The LVPECL outputs operate up to 1.6 GHz, LVDS outputs up to 800 MHz, and CMOS outputs up to 250 MHz.
- What is the typical additive output jitter for LVPECL and LVDS outputs?
The typical additive output jitter is 225 fs rms for LVPECL outputs and 275 fs rms for LVDS outputs.
- What is the channel-to-channel skew for paired outputs?
The channel-to-channel skew for paired outputs is less than 10 ps.
- What is the operating supply voltage for the AD9516-0?
The AD9516-0 operates from a single 3.3 V supply.
- What is the operating temperature range for the AD9516-0?
The operating temperature range is from -40°C to +85°C.
- In what package is the AD9516-0 available?
The AD9516-0 is available in a 64-lead LFCSP package.
- What are some typical applications of the AD9516-0?
Typical applications include low jitter clock distribution, high-speed networking, forward error correction, clocking high-speed converters, and high-performance instrumentation.
