The PEF88601V1.1 is a single-chip ADSL/ADSL2/ADSL2+ analog front-end (AFE) solution from Infineon Technologies. It is designed to interface with a digital modem chip to provide the complete analog functionality required for an ADSL modem. It enables high-speed internet access over existing telephone lines.

Applications:

• ADSL modems
• ADSL routers
• Integrated Access Devices (IADs)
• Set-top boxes with integrated ADSL functionality

Features:

• Integrated high-performance ADC and DAC
• Low power consumption
• Programmable gain settings
• Line driver with adjustable output power
• Receive path with integrated filters and amplifiers
• Supports ADSL, ADSL2, and ADSL2+ standards
• Integrated impedance matching
• Digital interface for connection to a modem chip

Benefits:

• Enables high-speed internet access over existing telephone lines
• Reduces system cost and complexity due to single-chip integration
• Minimizes power consumption for energy-efficient designs
• Provides flexibility in system design through programmable gain settings
• Ensures reliable data transmission with integrated filters and amplifiers
• Complies with industry-standard ADSL specifications for interoperability
• Simplifies board design with integrated impedance matching

Additional Details:

The PEF88601V1.1 AFE typically operates with a 3.3V power supply. It includes both transmit and receive paths. The transmit path includes a high-performance DAC and a line driver capable of driving signals over the telephone line. The receive path includes a low-noise amplifier (LNA) and an ADC. The device supports various ADSL standards, including G.dmt (ADSL), G.lite, ADSL2, and ADSL2+. The device has a digital interface to connect to a digital modem chip, allowing for complete ADSL modem functionality. The gain of both the transmit and receive paths can be adjusted to optimize performance for different line conditions. Its highly integrated design reduces the number of external components required, simplifying the overall design and reducing the bill of materials cost.