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MAX19707ETM Datasheet(PDF) 1 Page - Maxim Integrated Products |
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MAX19707ETM Datasheet(HTML) 1 Page - Maxim Integrated Products |
1 / 37 page General Description The MAX19707 is an ultra-low-power, mixed-signal ana- log front-end (AFE) designed for power-sensitive com- munication equipment. Optimized for high dynamic performance at ultra-low power, the device integrates a dual, 10-bit, 45Msps receive (Rx) ADC; dual, 10-bit, 45Msps transmit (Tx) DAC; three fast-settling 12-bit aux-DAC channels for ancillary RF front-end control; and a 10-bit, 333ksps housekeeping aux-ADC. The typ- ical operating power in Tx-Rx FAST mode is 84.6mW at a 45MHz clock frequency. The Rx ADCs feature 54.2dB SNR and 71.2dBc SFDR at fIN = 5.5MHz and fCLK = 45MHz. The analog I/Q input amplifiers are fully differential and accept 1.024VP-P full-scale signals. Typical I/Q channel match- ing is ±0.03° phase and ±0.01dB gain. The Tx DACs feature 73.2dBc SFDR at fOUT = 2.2MHz and fCLK = 45MHz. The analog I/Q full-scale output volt- age is ±400mV differential. The Tx DAC common-mode DC level is programmable from 0.71V to 1.05V. The I/Q channel offset is programmable to optimize radio lineup sideband/carrier suppresion. The typical I/Q channel matching is ±0.01dB gain and ±0.07° phase. The Rx ADC and Tx DAC share a single, 10-bit parallel, high-speed digital bus allowing half-duplex operation for time-division duplex (TDD) applications. A 3-wire serial interface controls power-management modes, the aux-DAC channels, and the aux-ADC channels. The MAX19707 operates on a single 2.7V to 3.3V ana- log supply and 1.8V to 3.3V digital I/O supply. The MAX19707 is specified for the extended (-40°C to +85°C) temperature range and is available in a 48-pin, thin QFN package. The Selector Guide at the end of the data sheet lists other pin-compatible versions in this AFE family. Applications Features ♦ Dual, 10-Bit, 45Msps Rx ADC and Dual, 10-Bit, 45Msps Tx DAC ♦ Ultra-Low Power 84.6mW at fCLK = 45MHz, Fast Mode 77.1mW at fCLK = 45MHz, Slow Mode Low-Current Standby and Shutdown Modes ♦ Programmable Tx DAC Common-Mode DC Level and I/Q Offset Trim ♦ Excellent Dynamic Performance SNR = 54.2dB at fIN = 5.5MHz (Rx ADC) SFDR = 73.2dBc at fOUT = 2.2MHz (Tx DAC) ♦ Three 12-Bit, 1µs Aux-DACs ♦ 10-Bit, 333ksps Aux-ADC with 4:1 Input Mux and Data Averaging ♦ Excellent Gain/Phase Match ±0.03° Phase, ±0.01dB Gain (Rx ADC) at fIN = 5.5MHz ♦ Multiplexed Parallel Digital I/O ♦ Serial-Interface Control ♦ Versatile Power-Control Circuits Shutdown, Standby, Idle, Tx/Rx Disable ♦ Miniature 48-Pin Thin QFN Package (7mm x 7mm x 0.8mm) 10-Bit, 45Msps, Ultra-Low-Power Analog Front-End ________________________________________________________________ Maxim Integrated Products 1 19-3826; Rev 1; 6/07 For pricing, delivery, and ordering information, please contact Maxim Direct at 1-888-629-4642, or visit Maxim’s website at www.maxim-ic.com. EVALUATION KIT AVAILABLE Ordering Information PART* PIN-PACKAGE PKG CODE MAX19707ETM 48 Thin QFN-EP** T4877-4 MAX19707ETM+ 48 Thin QFN-EP** T4877-4 *All devices are specified over the -40°C to +85°C operating range. **EP = Exposed paddle. +Denotes lead-free package. Functional Diagram and Selector Guide appear at end of data sheet. D9 D8 D6 OVDD D4 D3 D2 D0 D1 OGND D5 D7 VDD IDN IDP GND VDD QDN QDP REFN EXPOSED PADDLE (GND) REFIN DAC1 COM DAC2 37 38 39 40 41 42 43 44 45 46 47 48 12 34 5 67 89 10 24 23 22 21 20 19 18 17 16 15 14 13 THIN QFN MAX19707 TOP VIEW 11 12 36 35 34 33 32 31 30 29 28 27 26 25 Pin Configuration WiMAX CPEs 802.11a/b/g WLAN VoIP Terminals Portable Communication Equipment |
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