MAX19700ETM+T

Analog Front End (AFE) Overview

The MAX19700ETM+T is a low-power, mixed-signal Analog Front End (AFE) designed for TD-SCDMA applications. It integrates dual 10-bit 7.5Msps receive ADCs and dual 10-bit 7.5Msps transmit DACs with an integrated TD-SCDMA baseband filter. The device operates on a single +2.7V to +3.3V analog supply and a +1.8V to +3.3V digital I/O supply. Key performance metrics include a typical power consumption of 36.3mW in Tx-Rx FAST mode at 5.12Msps, Rx ADC SINAD of 54.9dB, and SFDR of 78dBc. It features a 48-pin TQFN package.

Analog Front End (AFE) Feature Summary

• Integrates dual 10-bit 7.5Msps Rx ADCs and dual 10-bit 7.5Msps Tx DACs
• Includes integrated TD-SCDMA baseband filter with >55dB stopband rejection
• Features three 12-bit fast-settling auxiliary DAC channels
• Supports 3-wire serial interface for control and multiplexed parallel digital I/O

Analog Front End (AFE) Applications

• TD-SCDMA mobile phones
• TD-SCDMA data cards
• Portable communication devices

Analog Front End (AFE) Procurement Notes

Verify the suffix 'T' indicates tape-and-reel packaging versus the tube-packaged MAX19700ETM+. Confirm component status as discontinued or limited supply through official Analog Devices channels before procurement planning.

Analog Front End (AFE) Selection Notes

Select this AFE for TD-SCDMA designs requiring integrated filtering and low power consumption. Ensure design compatibility with the required 1.024V reference voltage and differential I/Q input structures. Verify that the 48-TQFN thermal pad requirements are met by the PCB layout.

Analog Front End (AFE) Part Context

The MAX19700 series serves as a complete RF solution for TD-SCDMA terminals, often paired with other Maxim Integrated components like the MAX2392 or MAX2507. The ETM+ variant specifies lead-free construction within the 48-WFQFN exposed pad package.

Analog Front End (AFE) Replacement Considerations

Check for direct pin-compatible replacements within the MAX19700 family, such as the MAX19700ETM+, noting differences in packaging (tube vs. reel). No other specific cross-model substitutes are documented in the provided source material.