Overview
The AD9518-3ABCPZ is a 6-output clock generator produced by Analog Devices Inc., designed to provide high-performance clock distribution with integrated timing solutions. This component features an on-chip phase-locked loop (PLL) and a voltage-controlled oscillator (VCO) that tunes from 1.75 GHz to 2.25 GHz, with the option to use an external VCO/VCXO up to 2.4 GHz. It is optimized for low jitter and phase noise, making it ideal for applications requiring precise clocking, such as high-speed data converters, wireless transceivers, and advanced test equipment (ATE).
Key Specifications
| Parameter | Value | Unit | Comments |
|---|---|---|---|
| VCO Frequency Range | 1.75 GHz to 2.25 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 | Three pairs of outputs |
| Output Jitter | 225 fs rms | fs | Additive output jitter |
| Divider Range | 1 to 32 | For each output pair | |
| Supply Voltage | 3.3 V (nominal) | V | Single supply; VCP can be 5 V for external VCO |
| LVPECL Power Supply | 2.5 V to 3.3 V | V | Nominal |
| Operating Temperature | −40°C to +85°C | °C | Industrial range |
| Package Type | 48-Lead LFCSP | Exposed Pad, CSP |
Key Features
- Integrated 2.0 GHz VCO with a tuning range of 1.75 GHz to 2.25 GHz and optional external VCO/VCXO up to 2.4 GHz.
- Six LVPECL outputs in three pairs, operating up to 1.6 GHz.
- Low jitter and phase noise to maximize data converter performance and benefit other demanding applications.
- Dividers for each output pair allowing both divide ratio and coarse phase delay to be set, with a division range of 1 to 32.
- Single 3.3 V supply operation with the option for an external VCO requiring a 5 V charge pump supply.
- Industrial temperature range operation from −40°C to +85°C.
Applications
- Clocking high-speed ADCs, DACs, DDSs, DDCs, DUCs, and MxFEs.
- High-performance wireless transceivers.
- Advanced Test Equipment (ATE) and high-performance instrumentation.
- Forward error correction (G.710) and OTU2/3/4 clocking.
Q & A
- What is the frequency range of the integrated VCO in the AD9518-3?
The integrated VCO tunes from 1.75 GHz to 2.25 GHz.
- Can the AD9518-3 use an external VCO/VCXO?
- How many LVPECL outputs does the AD9518-3 have?
- What is the maximum frequency of the LVPECL outputs?
- What is the additive output jitter of the AD9518-3?
- What is the divider range for each output pair?
- What is the typical supply voltage for the AD9518-3?
- What is the operating temperature range of the AD9518-3?
- In what package type is the AD9518-3 available?
- What are some typical applications of the AD9518-3?
