Overview
The AD9574BCPZ-REEL7, produced by Analog Devices Inc., is a multiple output clock generator designed specifically for Ethernet and gigabit Ethernet applications. This integrated circuit utilizes a dedicated phase-locked loop (PLL) core to provide high-performance, low-jitter frequency synthesis. The device is part of Analog Devices' portfolio of high-performance frequency synthesizers, aimed at maximizing network performance.
The AD9574 is packaged in a 48-lead 7 mm × 7 mm LFCSP and operates on a single 3.3 V supply. It supports an operating temperature range of −40°C to +85°C, making it versatile for various environments.
Key Specifications
| Specification | Value |
|---|---|
| Package Type | 48-lead LFCSP |
| Package Size | 7 mm × 7 mm |
| Supply Voltage | 3.3 V |
| Operating Temperature Range | −40°C to +85°C |
| Input Frequency | 19.44 MHz or 25 MHz |
| Output Frequencies | Various frequencies including 25 MHz, 33.33 MHz, 50 MHz, 66.67 MHz, 80 MHz, 100 MHz, 125 MHz, 133.3 MHz, 156.25 MHz, 160 MHz, 312.5 MHz |
| Output Drive Formats | HSTL, LVDS, HCSL, and 1.8 V and 3.3 V CMOS |
| RMS Jitter (10 kHz to 10 MHz at 156.25 MHz) | 0.234 ps |
| RMS Jitter (12 kHz to 20 MHz at 156.25 MHz) | 0.243 ps |
Key Features
- Redundant input reference clock capability
- Reference monitoring function
- Fully integrated VCO/PLL core
- Low jitter and phase noise performance
- Preset frequency translations
- Integrated loop filter requiring a single external capacitor
- Device configuration via strapping pins (PPRx)
- Space-saving package
- Two copies of reference clock output
Applications
- Ethernet line cards, switches, and routers
- SATA and PCI Express
- Low jitter, low phase noise clock generation in various applications
Q & A
- What is the primary function of the AD9574BCPZ-REEL7?
The AD9574BCPZ-REEL7 is a multiple output clock generator optimized for Ethernet and gigabit Ethernet applications.
- What is the package type and size of the AD9574BCPZ-REEL7?
The device is packaged in a 48-lead 7 mm × 7 mm LFCSP.
- What are the supported input frequencies for the AD9574BCPZ-REEL7?
The device supports input frequencies of 19.44 MHz or 25 MHz.
- What are the output drive formats available on the AD9574BCPZ-REEL7?
The output drive formats include HSTL, LVDS, HCSL, and 1.8 V and 3.3 V CMOS.
- What is the RMS jitter performance of the AD9574BCPZ-REEL7 at 156.25 MHz?
The RMS jitter is 0.234 ps (10 kHz to 10 MHz) and 0.243 ps (12 kHz to 20 MHz) at 156.25 MHz.
- How is the device configured for different applications?
The device is configured via strapping pins (PPRx) using external pull-up or pull-down resistors.
- What are some of the key applications for the AD9574BCPZ-REEL7?
The device is used in Ethernet line cards, switches, routers, SATA, and PCI Express applications.
- What is the operating temperature range of the AD9574BCPZ-REEL7?
The operating temperature range is −40°C to +85°C.
- Does the AD9574BCPZ-REEL7 have redundant input reference clock capability?
- What type of loop filter does the AD9574BCPZ-REEL7 use?
The device uses an integrated loop filter that requires a single external capacitor.
