Overview
The AD9516-2BCPZ-REEL7, produced by Analog Devices Inc., is a 14-output clock generator designed to provide high-performance clock distribution with subpicosecond jitter. This device features an integrated 2.2 GHz Voltage-Controlled Oscillator (VCO) and a Phase-Locked Loop (PLL), making it ideal for applications requiring low jitter and phase noise.
The AD9516-2 emphasizes the importance of minimizing jitter and phase noise to optimize the performance of data converters and other high-speed applications. It operates from a single 3.3 V supply and can accommodate an external VCO/VCXO up to 2.4 GHz by adjusting the charge pump supply.
Key Specifications
| Parameter | Description | Value |
|---|---|---|
| VCO Frequency Range | On-chip VCO tuning range | 2.05 GHz to 2.33 GHz |
| External VCO/VCXO Range | Optional external VCO/VCXO frequency range | Up to 2.4 GHz |
| Reference Inputs | Type and frequency of reference inputs | 1 differential or 2 single-ended, up to 250 MHz (LVPECL, LVDS, or CMOS) |
| LVPECL Outputs | Number and frequency of LVPECL outputs | 6 outputs (in 3 pairs), up to 1.6 GHz |
| LVDS Outputs | Number and frequency of LVDS outputs, and reconfiguration capability | 4 outputs (in 2 pairs), up to 800 MHz, reconfigurable as 8 CMOS outputs up to 250 MHz |
| Output Jitter | Additive output jitter for LVPECL and LVDS outputs | LVPECL: 225 fs rms, LVDS: 275 fs rms |
| Channel-to-Channel Skew | Synchronization skew between paired outputs | < 10 ps |
| Divider Range | Division range for LVPECL and LVDS outputs | LVPECL: 1 to 32, LVDS/CMOS: up to 1024 |
| Package | Type and number of pins | 64-lead LFCSP |
| Operating Temperature | Industrial operating temperature range | −40°C to +85°C |
Key Features
- Low Jitter and Phase Noise: Optimized for subpicosecond jitter performance to enhance data converter accuracy.
- Integrated VCO and PLL: On-chip VCO tunes from 2.05 GHz to 2.33 GHz, with optional external VCO/VCXO support up to 2.4 GHz.
- Multiple Output Types: Six LVPECL outputs (up to 1.6 GHz), four LVDS outputs (up to 800 MHz), and reconfigurable LVDS outputs as CMOS outputs (up to 250 MHz).
- Programmable Delays and Dividers: Programmable delays and dividers for both LVPECL and LVDS outputs, allowing for flexible phase and frequency adjustments.
- Automatic and Manual Synchronization: Automatic synchronization of all outputs on power-up and manual output synchronization available.
- Reference Monitoring and Switchover: Reference monitoring capability with automatic revertive and manual reference switchover/holdover modes.
- Digital or Analog Lock Detect: Selectable digital or analog lock detect for the PLL.
Applications
- Low Jitter, Low Phase Noise Clock Distribution: Ideal for high-speed data transmission systems.
- Networking Line Cards: Supports 10/40/100 Gb/sec networking, including SONET, Synchronous Ethernet, OTU2/3/4.
- Forward Error Correction: Used in forward error correction applications (G.710).
- High-Speed ADCs, DACs, DDSs, DDCs, DUCs, MxFEs: Clocking for high-speed analog-to-digital converters, digital-to-analog converters, and other high-speed signal processing components.
- High Performance Wireless Transceivers: Suitable for high-performance wireless communication systems.
- ATE and High Performance Instrumentation: Used in automated test equipment and high-performance instrumentation.
Q & A
- What is the frequency range of the on-chip VCO in the AD9516-2?
The on-chip VCO in the AD9516-2 tunes from 2.05 GHz to 2.33 GHz.
- Can the AD9516-2 use an external VCO/VCXO?
Yes, the AD9516-2 can use an external VCO/VCXO up to 2.4 GHz.
- What types of output signals does the AD9516-2 provide?
The AD9516-2 provides six LVPECL outputs, four LVDS outputs (reconfigurable as CMOS outputs), and each LVDS output can be reconfigured as two CMOS outputs.
- What is the operating frequency range for LVPECL, LVDS, and CMOS outputs?
LVECL outputs operate up to 1.6 GHz, LVDS outputs up to 800 MHz, and CMOS outputs up to 250 MHz.
- What is the additive output jitter for LVPECL and LVDS outputs?
The 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 division range for LVPECL and LVDS outputs?
The division range for LVPECL outputs is 1 to 32, and for LVDS/CMOS outputs, it is up to 1024.
- What is the package type and pin count of the AD9516-2?
The AD9516-2 is available in a 64-lead LFCSP package.
- What is the operating temperature range for the AD9516-2?
The operating temperature range is from −40°C to +85°C.
- Can the AD9516-2 be powered from a single supply voltage?
Yes, the AD9516-2 can be operated from a single 3.3 V supply.
