EVALUATION KIT AVAILABLE MAX2140 Complete SDARS Receiver General Description Features The MAX2140 complete receiver is designed for satellite Integrated Receiver, Requires Only One SAW Filter digital audio radio services (SDARS). The device includes Self-Contained RF AGC Loop a fully monolithic VCO and only needs a SAW at the IF Differential I/Q Interface and a crystal to generate the reference frequency. Complete Integrated Frequency Generation To form a complete SDARS radio, the MAX2140 requires only a low-noise amplifier (LNA), which can be controlled Bias Supply for External LNAs by a baseband controller. The small number of external Overcurrent Protection components needed makes the MAX2140-based platform Low-Power Standby Mode the lowest cost and the smallest solution for SDARS. Very Small 44-Pin Thin QFN Package The receiver includes a self-contained RF AGC loop and baseband-controlled IF AGC loop, effectively providing a Ordering Information total dynamic range of over 92dB. PART TEMP RANGE PIN-PACKAGE Channel selectivity is ensured by the SAW filter and by MAX2140ETH -40C to +85C 44 Thin QFN-EP* on-chip monolithic lowpass filters. MAX2140ETH+ -40C to +85C 44 Thin QFN-EP* The fractional-N PLL allows a very small frequency step, *EP = Exposed pad. making possible the implementation of an AFC loop. +Denotes a lead(Pb)-free/RoHS-compliant package. Additionally, the reference is provided by an external XTAL and on-chip oscillator. A reference buffer output is Block Diagram/Pin Configuration also provided. 2 A 2-wire interface (I C-bus compatible) programs the circuit for a wide variety of conditions, providing features such as: 44 43 42 41 40 39 38 37 36 35 34 XM TUNER Programmable gains VCC FE0 1 33 VTUNE Lowpass filters tuning RFIN+ 2 32 VCCREG MAX2140 Individual functional block shutdown RFIN- 3 31 VCC VCO The MAX2140 minimizes the requirement on the base- VCC FE1 4 30 VCC FE3 1/N RF band controller. No compensation or calibration proce- IFOUT+ 5 AGC 29 CPOUT - MOD PFD CHP dures are required. The device is available in a 7mm x 1/R IFOUT- 6 28 LOCK 7mm 44-pin thin QFN package. RFAGC C 7 27 VCC A Applications VCC FE2 8 LPF HPF 26 VCC D Satellite Digital Audio Radio Services (SDARS) AGCPWM /4/8 25 9 REFOUT QUAD 2.4GHz ISM Radios IFIN+ 10 24 XTAL LPF HPF IFIN- 11 23 VCC XTAL 12 13 14 15 16 17 18 19 20 21 22 ACTUAL SIZE 7mm x 7mm 19-3123 Rev 4 4/15 VCC BE1 SDA VCC BE2 SCL 2 VCC BE3 I CA1 2 VINANT I CA2 VOUTANT VCC BE4 IF2QO- IF2IO- IF2II- IF2QI- IF2QO+ IF2IO+ IF2QI+ IF2II+ QOUT- IOUT- QOUT+ IOUT+MAX2140 Complete SDARS Receiver Absolute Maximum Ratings V to GND ...................................................-0.3V to +4.3V Continuous Power Dissipation (T = +70C) CC XX A VINANT to GND ...................................................-0.3V to +5.6V 44-Pin TQFN (derate 26.31mW/C above +70C) ....2105mW AGCPWM to GND ................................................-0.3V to +3.0V Operating Temperature Range ........................... -40C to +85C Digital Input Current .........................................................10mA Junction Temperature ......................................................+150C Maximum VSWR Without Damage ........................................4:1 .....................................................................................1C/W JC Maximum VSWR Without Oscillations ................................... 4:1 Storage Temperature Range ............................ -65C to +150C All Other Pins ........................................... -0.3V to (V + 0.3V) Lead Temperature (soldering, 10s) .................................+300C CC Stresses beyond those listed under Absolute Maximum Ratings may cause permanent damage to the device. These are stress ratings only, and functional operation of the device at these or any other conditions beyond those indicated in the operational sections of the specifications is not implied. Exposure to absolute maximum rating conditions for extended periods may affect device reliability. CAUTION ESD SENSITIVE DEVICE DC Electrical Characteristics (V = 3.1V to 3.6V VINANT V , VOUTANT in open circuit, T = -40C to +85C. Typical values are at V = 3.3V, V = CC CC A CC VINANT 3.3V, and T = +25C, unless otherwise noted.) (Note 1) A PARAMETER SYMBOL CONDITIONS MIN TYP MAX UNITS V 3.1 3.3 3.6 CC Supply Voltage Range (Note 2) V V 3.1 3.3 5.3 INANT I All blocks on 150 180 mA CC Operating Supply Current I All blocks off 30 A SHDN Lock Indicator High (Locked) V V - 0.5 V IH LK CC Lock Indicator Low (Unlocked) V 0.5 V IL LK Digital Input-Logic High V V - 0.5 V IH CC Digital Input-Logic Low V 0.5 V IL Input Current for Digital Control I -1 +1 A DIG Pins Input Current for AGCPWM I -10 +290 A AGCPWM Voltage Drop VINANT to V Maximum current sink at VOUTANT is ANTDC- VOUTANT in Normal Operating 0.35 V 150mA DROP Mode Current Sink at VOUTANT to Flag I VOUTANT shorted to ground (Note 4) 195 500 mA ANTDC H Bit ACP = 1 Current Sink at VOUTANT to Flag I 12 20 30 mA ANTDC L Bit AND = 1 Maxim Integrated 2 www.maximintegrated.com