Overview
The AD9517-1ABCPZ, produced by Analog Devices Inc., is a highly advanced clock generator and distribution IC designed to provide multi-output clock distribution with exceptional subpicosecond jitter performance. It features an integrated 2.5 GHz Voltage-Controlled Oscillator (VCO) and a Phase-Locked Loop (PLL), making it ideal for applications requiring low jitter and phase noise.
This component is particularly beneficial for maximizing the performance of data converters and other systems with stringent phase noise and jitter requirements. It operates from a single 3.3 V supply and is available in a 48-lead Lead Frame Chip Scale Package (LFCSP).
Key Specifications
| Parameter | Min | Typ | Max | Unit | Test Conditions/Comments |
|---|---|---|---|---|---|
| Supply Voltage (VS) | 3.135 | 3.3 | 3.465 | V | 3.3 V ± 5% |
| LVPECL Supply Voltage (VS_LVPECL) | 2.375 | - | 3.3 | V | Nominally 2.5 V to 3.3 V ± 5% |
| Charge Pump Supply Voltage (VCP) | - | - | 5.25 | V | Extended voltage range for external VCO |
| Operating Temperature | -40 | - | 85 | °C | Industrial range |
| LVPECL Output Frequency | - | - | 1.6 GHz | - | - |
| LVDS Output Frequency | - | - | 800 MHz | - | - |
| CMOS Output Frequency | - | - | 250 MHz | - | - |
| VCO Frequency Range | 2.30 GHz | - | 2.65 GHz | - | - |
Key Features
- Integrated 2.5 GHz VCO with a tuning range of 2.30 GHz to 2.65 GHz
- On-chip PLL for precise clock generation
- 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
- CMOS outputs operating up to 250 MHz
- Dividers for each output pair allowing adjustable divide ratio and coarse delay/phase setting
- Automatic synchronization of all outputs on power-up and manual output synchronization available
- Single 3.3 V supply operation with optional extended voltage range for external VCO
- 48-lead LFCSP package
- Industrial temperature range operation from -40°C to +85°C
Applications
- Low jitter, low phase noise clock distribution in 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, and MxFEs
- High-performance wireless transceivers
- Automatic Test Equipment (ATE) and high-performance instrumentation
Q & A
- What is the primary function of the AD9517-1ABCPZ?
The AD9517-1ABCPZ is a multi-output clock generator and distribution IC with integrated PLL and VCO, designed for low jitter and phase noise applications.
- What is the frequency range of the integrated VCO?
The integrated VCO tunes from 2.30 GHz to 2.65 GHz.
- What types of output signals does the AD9517-1ABCPZ provide?
The AD9517-1ABCPZ provides four LVPECL outputs, four LVDS outputs (reconfigurable as CMOS outputs), and each LVDS output can be reconfigured as two CMOS outputs.
- What are the maximum operating frequencies for each type of output?
LVECL outputs operate up to 1.6 GHz, LVDS outputs up to 800 MHz, and CMOS outputs up to 250 MHz.
- Can the AD9517-1ABCPZ be used with an external VCO/VCXO?
Yes, the AD9517-1ABCPZ can be used with an external VCO/VCXO up to 2.4 GHz.
- What is the power supply requirement for the AD9517-1ABCPZ?
The AD9517-1ABCPZ operates from a single 3.3 V supply, with optional extended voltage range for external VCO by connecting the charge pump supply (VCP) to 5 V.
- What is the operating temperature range of the AD9517-1ABCPZ?
The AD9517-1ABCPZ operates over the industrial temperature range of -40°C to +85°C.
- What package type is the AD9517-1ABCPZ available in?
The AD9517-1ABCPZ is available in a 48-lead Lead Frame Chip Scale Package (LFCSP).
- What are some typical applications of the AD9517-1ABCPZ?
Typical applications include low jitter clock distribution in networking line cards, clocking high-speed converters, high-performance wireless transceivers, and ATE/instrumentation.
- Can the AD9517-1ABCPZ be synchronized automatically on power-up?
Yes, the AD9517-1ABCPZ features automatic synchronization of all outputs on power-up, with manual synchronization also available.
