MAX19707ETM+

Analog Front End (AFE) Overview

The MAX19707ETM+ is an ultra-low-power, mixed-signal analog front-end (AFE) designed for power-sensitive communication equipment. It integrates dual 10-bit, 45Msps receive (Rx) ADCs and dual 10-bit, 45Msps transmit (Tx) DACs. The device also includes three fast-settling 12-bit auxiliary DAC channels and a 10-bit, 333ksps housekeeping auxiliary ADC with a 4:1 multiplexer. Typical operating power in Tx-Rx FAST mode is 84.6mW at a 45MHz clock frequency. The Rx ADCs provide 54.2dB SNR and 71.2dBc SFDR at fIN = 5.5MHz and fCLK = 45MHz. The Tx DACs feature 73.2dBc SFDR at fOUT = 2.2MHz and fCLK = 45MHz.

Analog Front End (AFE) Feature Summary

• Dual 10-bit, 45Msps Rx ADCs and Dual 10-bit, 45Msps Tx DACs
• Ultra-Low Power Consumption: 84.6mW in Fast Mode, 77.1mW in Slow Mode
• Three 12-bit, 1µs Aux-DACs and a 10-bit, 333ksps Aux-ADC
• Multiplexed Parallel Digital I/O and 3-Wire Serial Interface Control

Analog Front End (AFE) Applications

• WiMAX CPEs
• 802.11a/b/g WLAN
• VoIP Terminals
• Portable Communication Equipment

Analog Front End (AFE) Procurement Notes

Verify the component against official Analog Devices documentation to confirm specifications and authenticity. Ensure the package matches the 48-pin thin QFN form factor. Check RoHS compliance status as indicated in the datasheet. Confirm the operating temperature range meets application requirements of -40°C to +85°C.

Analog Front End (AFE) Selection Notes

Select this AFE for applications requiring high dynamic performance at ultra-low power. Consider the 10-bit resolution and 45Msps sampling rate for signal processing needs. Evaluate the programmable Tx DAC common-mode DC level and I/Q offset trim for radio lineup optimization. Verify compatibility with TDD systems using the shared digital bus.

Analog Front End (AFE) Part Context

The MAX19707ETM+ belongs to the MAX19707 family of analog front-ends. It is specified over the extended temperature range (-40°C to +85°C). The device is available in a 48-pin, thin QFN package (7mm x 7mm x 0.8mm). Other pin-compatible versions exist within the same AFE family.

Analog Front End (AFE) Replacement Considerations

Consult the Selector Guide in the MAX19707 datasheet for other pin-compatible versions in the AFE family.