Overview
The AD9571ACPZPEC-RL, produced by Analog Devices Inc., is a highly integrated Ethernet clock generator designed specifically for Ethernet line card applications. This component features a dedicated PLL core optimized for low jitter and low phase noise, making it ideal for demanding network environments. The AD9571 includes a low noise phase frequency detector (PFD), a precision charge pump (CP), a low phase noise voltage controlled oscillator (VCO), and preprogrammed feedback and output dividers. It operates from a single 3.3 V supply and is available in a compact 6 mm × 6 mm 40-lead LFCSP package.
Key Specifications
| Parameter | Value | Unit | Comments |
|---|---|---|---|
| Maximum Frequency | 156.25 MHz | ||
| Supply Voltage | 2.97 V to 3.63 V | V | |
| Operating Temperature | -40°C to +85°C | °C | |
| Output Formats | LVPECL, LVDS, CMOS | ||
| Output Frequencies | 25 MHz (6 copies), 33.33 MHz (1), 100 MHz or 125 MHz (2), 156.25 MHz (1) | Hz | |
| Package Type | 40-lead LFCSP | ||
| Power Dissipation (LVDS) | 0.48 W | W | |
| Power Dissipation (LVPECL) | 0.69 W | W |
Key Features
- Highly integrated clock generator with dedicated PLL core for low jitter and low phase noise.
- Supports multiple output formats: LVPECL, LVDS, and CMOS.
- No external loop filter components required, conserving design time and board space.
- Integrated loop filters, regulators for supply noise immunity, and multiple output buffers.
- Choice of reference clock input or external crystal for frequency generation.
- Compact 6 mm × 6 mm 40-lead LFCSP package.
- Single 3.3 V supply operation.
Applications
- Ethernet line cards, switches, and routers.
- SCSI, SATA, and PCI-express applications.
- Other applications requiring low phase noise and jitter, such as high-speed data transmission systems.
Q & A
- What is the primary function of the AD9571ACPZPEC-RL?
The AD9571ACPZPEC-RL is a multioutput clock generator optimized for Ethernet line card applications, providing low jitter and low phase noise clock signals.
- What are the supported output formats of the AD9571ACPZPEC-RL?
The component supports LVPECL, LVDS, and CMOS output formats.
- What is the maximum operating frequency of the AD9571ACPZPEC-RL?
The maximum operating frequency is 156.25 MHz.
- What is the operating voltage range of the AD9571ACPZPEC-RL?
The operating voltage range is from 2.97 V to 3.63 V.
- What is the operating temperature range of the AD9571ACPZPEC-RL?
The operating temperature range is from -40°C to +85°C.
- Does the AD9571ACPZPEC-RL require external loop filter components?
No, the AD9571ACPZPEC-RL does not require external loop filter components.
- What types of applications is the AD9571ACPZPEC-RL suited for?
The component is suited for Ethernet line cards, switches, routers, SCSI, SATA, PCI-express, and other applications requiring low phase noise and jitter.
- What is the package type of the AD9571ACPZPEC-RL?
The component is available in a 40-lead LFCSP package.
- How much power does the AD9571ACPZPEC-RL dissipate in LVDS operation?
The power dissipation in LVDS operation is 0.48 W.
- How much power does the AD9571ACPZPEC-RL dissipate in LVPECL operation?
The power dissipation in LVPECL operation is 0.69 W.
