Overview
The AD9517-1BCPZ, produced by Analog Devices Inc., is a high-performance 12-output clock generator with an integrated 2.5 GHz 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 AD9517-1 features an on-chip Phase-Locked Loop (PLL) and VCO, which can be tuned from 2.30 GHz to 2.65 GHz. Additionally, an external VCO/VCXO up to 2.4 GHz can be used if required. The device supports various output formats, including LVPECL, LVDS, and CMOS, catering to a wide range of clocking needs.
Key Specifications
| Parameter | Value | Unit | Comments |
|---|---|---|---|
| VCO Frequency Range | 2.30 GHz to 2.65 GHz | GHz | On-chip VCO |
| External VCO/VCXO Frequency | Up to 2.4 GHz | GHz | Optional |
| LVPECL Output Frequency | Up to 1.6 GHz | GHz | Two pairs of outputs |
| LVDS Output Frequency | Up to 800 MHz | MHz | Two pairs of outputs, reconfigurable as CMOS |
| CMOS Output Frequency | Up to 250 MHz | MHz | Reconfigurable from LVDS |
| 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, with optional 5 V for VCP |
| Operating Temperature | -40°C to +85°C | °C | Industrial range |
| Package Type | 48-lead LFCSP | 7mm x 7mm x 0.85mm w/ EP |
Key Features
- Integrated 2.5 GHz VCO with a tuning range of 2.30 GHz to 2.65 GHz
- Optional external VCO/VCXO up to 2.4 GHz
- Four LVPECL outputs (in two pairs) operating up to 1.6 GHz
- Four LVDS outputs (in two pairs) operating up to 800 MHz, reconfigurable as two CMOS outputs each
- Subpicosecond jitter performance for low jitter and phase noise
- Programmable dividers and coarse phase delay for each output pair
- Automatic synchronization of all outputs on power-up and manual output synchronization available
- Reference monitoring capability with automatic revertive and manual reference switchover/holdover modes
- Accepts LVPECL, LVDS, or CMOS references up to 250 MHz
- Digital or analog lock detect, selectable
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 (Automated Test Equipment) and high-performance instrumentation
Q & A
- What is the frequency range of the integrated VCO in the AD9517-1?
The integrated VCO in the AD9517-1 tunes from 2.30 GHz to 2.65 GHz.
- Can the AD9517-1 use an external VCO/VCXO?
- What types of output signals does the AD9517-1 support?
The AD9517-1 supports LVPECL, LVDS, and CMOS output signals.
- What is the maximum frequency for LVPECL outputs?
The LVPECL outputs operate up to 1.6 GHz.
- What is the maximum frequency for LVDS outputs?
The LVDS outputs operate up to 800 MHz and can be reconfigured as CMOS outputs.
- What is the typical jitter performance of the AD9517-1?
The AD9517-1 has subpicosecond jitter performance, with additive output jitter of 225 fs rms for LVPECL and 275 fs rms for LVDS.
- What is the operating temperature range of the AD9517-1?
The AD9517-1 operates over the industrial temperature range of -40°C to +85°C.
- What is the package type of the AD9517-1?
The AD9517-1 is available in a 48-lead LFCSP package.
- What are some common applications of the AD9517-1?
- Does the AD9517-1 support automatic synchronization of outputs?
