MAX2202 19-5496 Rev 1 2/11 RMS Power Detector General Description Features The MAX2202 RMS power detector is designed to -29dBm to 0dBm Power-Detection Range operate from 800MHz to 2.0GHz. The device is ideal for 33mV/dB (typ) Log Detector wideband code-division multiple access (WCDMA), cdma2000 , and high-speed downlink/uplink packet 0.1dB (typ) RMS Accuracy from WCDMA access. The device accepts an RF signal at the input Modulation Change and outputs the same voltage regardless of the peak- 0.4dB Detection Error Due to Temperature average of the input signal. The output voltage and input power is linear in dB. The device has a +2.5V to +4.2V Single-Supply Operation -29dBm to 0dBm detection range, and every dB Space-Saving 6-Bump WLP Package change in input power gives 33mV (typ) change in out- put voltage. The device operates from a 2.5V to 4.2V supply and is Ordering Information specified over the -40C to +85C extended tempera- ture range. The device is available in a 6-bump WLP PIN- TOP package. PART TEMP RANGE PACKAGE MARK Applications MAX2202EWT+T10 -40C to +85C 6 WLP AA +Denotes a lead(Pb)-free/RoHS-compliant package. LTE, WCDMA, cdma2000, 1xEVDO T = Tape and reel. High-Speed Downlink Packet Access (HSDPA) High-Speed Uplink Packet Access (HSUPA) Typical Operating Circuit TERMINATION RESISTOR NOT NEEDED IF TWO OR MORE DIRECTIONAL COUPLERS ARE USED AND CONFIGURED AS IN FIGURE 1. RF INPUT FROM MAX2202 DIRECTIONAL + COUPLER 220pF SMA A1 A2 RFIN/ GND ENA 50 24.3k 1% B1 B2 ENABLE C1 FILT GND LOGIC INPUT 0.1F MUST BE X5R OR X7R TYPE V CC TEST POINT TYPE C1 (F) C2 (nF) 10k C1 C2 TO ADC WCDMA 0.1 4.7 V OUT CC C2 1F 0.1F NCDMA 0.33 15 4700pF cdma2000 is a registered trademark of the Telecommunications Industry Association. Maxim Integrated Products 1 For pricing, delivery, and ordering information, please contact Maxim Direct at 1-888-629-4642, or visit Maxims website at www.maxim-ic.com. EVALUATION KIT AVAILABLERMS Power Detector ABSOLUTE MAXIMUM RATINGS V to GND...........................................................-0.3V to +4.5V Operating Temperature Range ...........................-40C to +85C CC ENA, OUT, FILT to GND........................................-0.3V to +3.0V Storage Temperature Range .............................-65C to +160C RFIN Input Power ...........................................................+10dBm Junction Temperature .....................................................+150C Continuous Power Dissipation (T = +70C) Soldering Temperature (reflow, Note 1)...........................+260C A 6-Bump WLP (derate 2.9mW/C above +70C)...........232mW Note 1: Refer to Application Note 1891: Wafer-level packaging (WLP) and its applications. 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 PACKAGE THERMAL CHARACTERISTICS (NOTES 2) 6 WLP Junction-to-Ambient Thermal Resistance ( ) ...........95C/W JA Note 2: Package thermal resistances were obtained using the method described in JEDEC specification JESD51-7, using a four- layer board. For detailed information on package thermal considerations, refer to www.maxim-ic.com/thermal-tutorial. DC ELECTRICAL CHARACTERISTICS (V = 2.5V to 4.2V, T = -40C to +85C, V = 2.7V, no RF signal applied. Typical values are at V = 2.8V, T = +25C, unless CC A ENA CC A otherwise noted.) (Note 3) PARAMETER SYMBOL CONDITIONS MIN TYP MAX UNITS Supply Voltage V 2.5 2.8 4.2 V CC Supply Current I V = 2.8V, RF input = -29dBm to 0dBm 5.5 8.5 mA CC CC Shutdown Supply Current V = 0V 0.5 10 A ENA ENA Logic-High Threshold V 1.1 2.7 V IH ENA Logic-Low Threshold V 0 0.6 V IL ENA Input Current V = 1.1V or 0.6V 25 A ENA AC ELECTRICAL CHARACTERISTICS (V = 2.8V, T = -40C to +85C, V = 2.7V, f = 800MHz to 2GHz, unless otherwise noted. Typical values are at T = +25C.) CC A ENA RF A (Note 3) PARAMETER SYMBOL CONDITIONS MIN TYP MAX UNITS RF Input Frequency 800 2000 MHz Maximum Output Voltage RFIN at 0dBm 1.05 1.31.5V Minimum Output Voltage No RF input power, V = 2.7V 250 450 mV ENA +1dB input power step results in V OUT Minimum Input Power Level -29 dBm increase > 23mV/dB (Note 4) Log Slope (V at -1dBm) - (V at -29dBm) /28 23 33 43 mV/dB OUT OUT Log Conformance Error with (Notes 4, 5) -1.0+1.0dB 10dB Step Power-Detector Accuracy Due to RF input at -4dBm to -1dBm, T = -20C to A 0.4dB Temperature +25C, and T = +25C to +85C A Note 3: Guaranteed by production test at T = +85C and 800MHz. Guaranteed by design and characterization at T = -40C and A A T = +25C, and over frequency limits. A Note 4: Guaranteed by design and characterization. Note 5: Log conformance is defined with respect to 4 calibration points, -1dBm, -7dBm, -19dBm, and -29dBm, at T = +25C. A 2 MAX2202