Overview
The AD9508SCPZ-EP, manufactured by Analog Devices Inc., is a high-performance clock fanout buffer designed to maximize system performance by minimizing jitter and phase noise. This device is particularly beneficial for applications requiring precise clock distribution, such as clocking data converters, high-speed ADCs, DACs, DDSs, DDCs, DUCs, and MxFEs. It operates from a single 2.5 V power supply and is available in a 24-lead LFCSP package with an exposed pad for enhanced thermal performance.
Key Specifications
| Parameter | Value | Unit |
|---|---|---|
| Number of Outputs | 4 | - |
| Output Logic Types | LVDS, HSTL, 1.8 V CMOS | - |
| LVDS/HSTL Frequency | 1.65 GHz | - |
| CMOS Frequency | 250 MHz | - |
| Power Supply Voltage | 2.5 V | V |
| Temperature Range | -55°C to +105°C | °C |
| Package Type | 24-lead LFCSP | - |
| Additive Output Jitter | 41 fs rms (12 kHz to 20 MHz) | fs |
| Output Divider Range | 1 to 1024 | - |
Key Features
- Four independent differential clock outputs with LVDS, HSTL, and 1.8 V CMOS logic levels.
- Programmable output dividers that can be bypassed or set to divide by any integer up to 1024.
- Coarse output phase adjustment between the outputs.
- Automatic synchronization of all outputs.
- Internal low dropout (LDO) voltage regulator for enhanced power supply immunity.
- Serial control port (SPI/I²C) or pin programmable mode.
- Single 2.5 V power supply operation.
- Extended temperature range: −55°C to +105°C.
- Compliant with AQEC standard for defense and aerospace applications.
Applications
- Low jitter, low phase noise clock distribution.
- Clocking high-speed ADCs, DACs, DDSs, DDCs, DUCs, and MxFEs.
- High-performance wireless transceivers.
- High-performance instrumentation.
- Broadband infrastructure.
Q & A
- What is the primary function of the AD9508SCPZ-EP?
The AD9508SCPZ-EP is a clock fanout buffer designed to distribute clock signals with low jitter and phase noise.
- What are the available output logic types for the AD9508SCPZ-EP?
The available output logic types are LVDS, HSTL, and 1.8 V CMOS.
- What is the maximum frequency for LVDS and HSTL outputs?
The maximum frequency for LVDS and HSTL outputs is 1.65 GHz.
- What is the temperature range of the AD9508SCPZ-EP?
The temperature range is −55°C to +105°C.
- Can the AD9508SCPZ-EP be programmed using different methods?
Yes, it can be programmed using SPI, I²C, or pin programming methods.
- What is the power supply voltage for the AD9508SCPZ-EP?
The power supply voltage is 2.5 V.
- Does the AD9508SCPZ-EP support coarse output phase adjustment?
Yes, it supports coarse output phase adjustment between the outputs.
- What is the additive output jitter of the AD9508SCPZ-EP?
The additive output jitter is 41 fs rms (12 kHz to 20 MHz).
- Is the AD9508SCPZ-EP suitable for defense and aerospace applications?
Yes, it is compliant with the AQEC standard for defense and aerospace applications.
- What package type is the AD9508SCPZ-EP available in?
The AD9508SCPZ-EP is available in a 24-lead LFCSP package with an exposed pad.
