AFE1230E/1K

Analog Front End (AFE) Overview

The AFE1230E/1K is a G.SHDSL and HDSL2 analog front-end integrated circuit manufactured by Texas Instruments. It integrates a transmitter and receiver section to interface between a Digital Signal Processor (DSP) and the local loop, supporting data rates from 64kbps to 2.5Mbps. The device features 16-bit delta-sigma converters for both transmission and reception. Key specifications include a programmable gain amplifier (PGA), on-chip line driver capable of 14.5dBm output, and digital filters. It operates on a single 5V analog supply with a 3.3V to 5V digital supply, housed in an SSOP-28 package.

Analog Front End (AFE) Feature Summary

• Integrated G.SHDSL/HDSL2 transceiver with 16-bit delta-sigma D/A and A/D converters
• On-chip differential line driver providing up to 14.5dBm power into a 135Ω line
• Programmable receive PGA with gain range from 0dB to +21dB in 3dB steps
• Digital transmit and receive filters with user-programmable cutoff frequencies

Analog Front End (AFE) Applications

• G.SHDSL line interface designs
• HDSL2 application designs requiring external drivers
• Subrate E1/T1 operation systems

Analog Front End (AFE) Procurement Notes

Verify that the /1K suffix indicates Tape and Reel packaging containing 1000 devices per reel. Confirm the base part number corresponds to the SSOP-28 package variant. Ensure the ordering quantity aligns with the 1000-unit increment requirement specified for this packaging option.

Analog Front End (AFE) Selection Notes

Select the internal line driver configuration for G.SHDSL applications requiring up to 14.5dBm output. For HDSL2 applications requiring higher power (up to 17dBm), utilize the AFE1230 as a buffer with an external driver such as the OPA2677. Ensure the DSP supports the required serial interface timing and master clock frequencies up to 40.8MHz.

Analog Front End (AFE) Part Context

The AFE1230E/1K belongs to the AFE1230 family of analog front-ends designed for DSL applications. The 'E' designation identifies the commercial temperature range (-40°C to +85°C) and SSOP-28 package. The '/1K' suffix specifically denotes the tape and reel shipping format with a quantity of 1000 units.

Analog Front End (AFE) Replacement Considerations

Public confirmed substitute part numbers are not available in the provided documentation.