Overview
The AD9548BCPZ-REEL7, produced by Analog Devices Inc., is a highly versatile and robust quad/octal input network clock generator and synchronizer. This component is designed to provide precise clock generation and distribution, making it ideal for various applications requiring high stability and low jitter clock signals. The AD9548 operates over an industrial temperature range of −40°C to +85°C, ensuring reliability in diverse environmental conditions.
Key Specifications
| Parameter | Min | Typ | Max | Unit | Test Conditions/Comments |
|---|---|---|---|---|---|
| Supply Voltage | 3.0 | - | 3.6 | V | - |
| Supply Current | - | 350 | - | mA | Typical value at 3.3V supply |
| Power Dissipation | - | 1150 | - | mW | Typical value at 3.3V supply |
| Reference Input Frequency Range | 1 Hz | - | 750 MHz | - | Differential or single-ended inputs |
| Output Frequency Range | - | - | 450 MHz | - | Differential LVDS/LVPECL or single-ended CMOS outputs |
| Input Reference Divider Range | 1 | - | 2^30 - 1 | - | 30-bit programmable |
| Feedback Divider Range | 1 | - | 2^30 - 1 + (2^10 - 1)/2^10 | - | 30-bit integer and 10-bit fractional programmable |
Key Features
- Supports Stratum 2 stability in holdover mode and hitless reference switchover.
- Auto/manual holdover and reference switchover with phase build-out.
- Four pairs of reference input pins, each pair configurable as a single differential input or as two independent single-ended inputs.
- Programmable input reference switchover priority and 30-bit programmable input reference divider.
- Four pairs of clock output pins, each pair configurable as a single differential LVDS/LVPECL output or as two single-ended CMOS outputs.
- Digital PLL for reducing input time jitter or phase noise associated with external references.
- Continuous generation of a clean, low-jitter output clock even when all references have failed.
Applications
The AD9548BCPZ-REEL7 is suitable for a wide range of applications, including telecommunications, wireless infrastructure, instrumentation, networking, and broadband systems. Its high stability and low jitter make it particularly useful in environments where precise clock synchronization is critical.
Q & A
- What is the operating temperature range of the AD9548BCPZ-REEL7?
The AD9548BCPZ-REEL7 operates over an industrial temperature range of −40°C to +85°C. - What types of input references does the AD9548BCPZ-REEL7 support?
The component supports differential or single-ended input references with frequencies ranging from 1 Hz to 750 MHz. - What is the maximum output frequency of the AD9548BCPZ-REEL7?
The maximum output frequency is up to 450 MHz. - Does the AD9548BCPZ-REEL7 support hitless reference switchover?
Yes, it supports hitless reference switchover. - How many pairs of clock output pins does the AD9548BCPZ-REEL7 have?
The component has four pairs of clock output pins. - What is the purpose of the digital PLL in the AD9548BCPZ-REEL7?
The digital PLL reduces input time jitter or phase noise associated with external references. - Can the AD9548BCPZ-REEL7 generate a clean output clock when all references have failed?
Yes, it continuously generates a clean, low-jitter output clock even when all references have failed. - What is the range of the programmable input reference divider?
The input reference divider is 30-bit programmable. - What types of output configurations are available for the clock output pins?
Each pair of clock output pins can be configured as a single differential LVDS/LVPECL output or as two single-ended CMOS outputs. - Is the AD9548BCPZ-REEL7 suitable for telecommunications applications?
Yes, it is suitable for telecommunications and other applications requiring high stability and low jitter clock signals.
