Overview
The AD9516-5 from Analog Devices Inc. is a 14-output clock generator designed to provide high-performance clock distribution with subpicosecond jitter performance. This device features an on-chip phase-locked loop (PLL) that can be used with an external voltage-controlled oscillator (VCO) or voltage-controlled crystal oscillator (VCXO) up to 2.4 GHz. The AD9516-5 is optimized for low jitter and phase noise, making it ideal for applications that require precise clock signals, such as data converters and other systems with demanding phase noise and jitter requirements.
Key Specifications
| Parameter | Value |
|---|---|
| Package Type | 64-Lead LFCSP (9mm x 9mm w/ EP) |
| Supply Voltage | 3.3 V (nominal), VCP up to 5.5 V, LVPECL power supply 2.375 V to 3.6 V |
| Operating Temperature | −40°C to +85°C |
| Output Types | Six LVPECL outputs (in three pairs), four LVDS outputs (in two pairs), each LVDS output can be reconfigured as two CMOS outputs |
| Output Frequencies | LVPECL: up to 1.6 GHz, LVDS: up to 800 MHz, CMOS: up to 250 MHz |
| Divider Range | LVPECL: 1 to 32, LVDS/CMOS: up to 1024 |
| PLL Input Frequency (Max) | 2.4 GHz (with external VCO/VCXO) |
Key Features
- Subpicosecond jitter performance for high precision clock distribution.
- On-chip PLL with the ability to use an external VCO/VCXO up to 2.4 GHz.
- Six LVPECL outputs (in three pairs) and four LVDS outputs (in two pairs), with each LVDS output reconfigurable as two CMOS outputs.
- Dividers for each output pair allowing adjustable divide ratio and coarse delay (or phase).
- Single 3.3 V supply operation with optional extended voltage range for external VCO.
- Industrial temperature range operation from −40°C to +85°C.
Applications
The AD9516-5 is suitable for various applications requiring high-quality clock signals, including:
- Data converters and other systems demanding low jitter and phase noise.
- Wireless infrastructure and networking equipment.
- Instrumentation and test equipment.
- Broadband and telecommunications systems.
- Automated Test Equipment (ATE).
Q & A
- What is the primary function of the AD9516-5?
The AD9516-5 is a 14-output clock generator designed for high-performance clock distribution with subpicosecond jitter performance.
- What types of outputs does the AD9516-5 provide?
The device provides six LVPECL outputs (in three pairs), four LVDS outputs (in two pairs), and each LVDS output can be reconfigured as two CMOS outputs.
- What is the maximum frequency for each output type?
LVPECL outputs operate up to 1.6 GHz, LVDS outputs up to 800 MHz, and CMOS outputs up to 250 MHz.
- Can the AD9516-5 use an external VCO/VCXO?
Yes, the AD9516-5 can use an external VCO/VCXO up to 2.4 GHz.
- What is the operating temperature range of the AD9516-5?
The device operates over the industrial temperature range of −40°C to +85°C.
- What is the supply voltage requirement for the AD9516-5?
The device operates from a single 3.3 V supply, with optional extended voltage ranges for external VCO and LVPECL power supply.
- How many outputs does the AD9516-5 have?
The AD9516-5 has a total of 14 outputs.
- What is the package type of the AD9516-5?
The device is available in a 64-Lead LFCSP (9mm x 9mm w/ EP) package.
- Can the divider ratio and phase be adjusted for each output pair?
Yes, each pair of outputs has dividers that allow both the divide ratio and coarse delay (or phase) to be set.
- What are some typical applications for the AD9516-5?
The device is suitable for data converters, wireless infrastructure, instrumentation, broadband, and automated test equipment (ATE), among other applications requiring high-quality clock signals.
