MAX9984 19-3648 Rev 0 4/05 SiGe High-Linearity, 400MHz to 1000MHz Downconversion Mixer with LO Buffer/Switch General Description Features The MAX9984 high-linearity downconversion mixer pro- 400MHz to 1000MHz RF Frequency Range* vides 8.1dB gain, +25dBm IIP3, and 9.3dB NF for 325MHz to 850MHz LO Frequency Range* 400MHz to 1000MHz base-station receiver applica- (MAX9984) tions*. With an optimized 570MHz to 850MHz LO fre- 960MHz to 1180MHz LO Frequency Range quency range, this particular mixer is ideal for low-side (MAX9986) LO injection receiver architectures in the cellular band. 50MHz to 250MHz IF Frequency Range High-side LO injection is supported by the MAX9986, which is pin-for-pin and functionally compatible with the 8.1dB Conversion Gain MAX9984. +25dBm Input IP3 In addition to offering excellent linearity and noise perfor- +13dBm Input 1dB Compression Point mance, the MAX9984 also yields a high level of compo- 9.3dB Noise Figure nent integration. This device includes a double-balanced 71dBc 2RF-2LO Spurious Rejection at passive mixer core, an IF amplifier, a dual-input LO selec- P = -10dBm RF table switch, and an LO buffer. On-chip baluns are also Integrated LO Buffer integrated to allow for single-ended RF and LO inputs. The MAX9984 requires a nominal LO drive of 0dBm, and Integrated RF and LO Baluns for Single-Ended supply current is guaranteed to be below 265mA. Inputs The MAX9984/MAX9986 are pin compatible with the Low -3dBm to +3dBm LO Drive MAX9994/MAX9996 1700MHz to 2200MHz mixers, Built-In SPDT LO Switch with 54dB LO1 to LO2 making this entire family of downconverters ideal for Isolation and 50ns Switching Time applications where a common PC board layout is used Pin Compatible with MAX9994/MAX9996 1700MHz for both frequency bands. The MAX9984 is also func- to 2200MHz Mixers tionally compatible with the MAX9993. Functionally Compatible with MAX9993 The MAX9984 is available in a compact, 20-pin, thin External Current-Setting Resistors Provide Option QFN package (5mm x 5mm) with an exposed paddle. for Operating Mixer in Reduced Power/Reduced Electrical performance is guaranteed over the extended Performance Mode -40C to +85C temperature range. Lead-Free Package Available Applications 850MHz W-CDMA Base Stations Ordering Information GSM 850/GSM 900 2G and 2.5G EDGE Base Stations PKG PART TEMP RANGE PIN-PACKAGE cdmaOne and cdma2000 Base Stations CODE 20 Thin Q FN- E P ** iDEN Base Stations MAX9984ETP -40 C to + 85 C T2055-3 5m m 5mm 400MHz to 700MHz OFDM/WiMAX CPE and 20 Thin Q FN- E P ** Base-Station Equipment MAX9984ETP-T - 40 C to + 85 C T2055-3 5m m 5mm Predistortion Receivers 20 Thin Q FN- E P ** Fixed Broadband Wireless Access MAX9984ETP+D -40 C to + 85 C T2055-3 5m m 5mm Wireless Local Loop 20 Thin Q FN- E P ** MAX9984ETP + TD - 40 C to + 85 C T2055-3 Private Mobile Radios 5m m 5mm Military Systems *For an RF frequency range below 815MHz (LO frequency below 570MHz), appropriate tuning is required. See Table 2 for details. Microwave Links **EP = Exposed paddle. Digital and Spread-Spectrum Communication Systems + = Lead free. D = Dry pack. T = Tape-and-reel. cdma2000 is a registered trademark of the Telecommunications Industry Association. Pin Configuration/Functional Diagram and Typical cdmaOne is a trademark of CDMA Development Group. Application Circuit appear at end of data sheet. iDEN is a registered trademark of Motorola, Inc. Maxim Integrated Products 1 For pricing, delivery, and ordering information, please contact Maxim/Dallas Direct at 1-888-629-4642, or visit Maxims website at www.maxim-ic.com. EVALUATION KIT AVAILABLESiGe High-Linearity, 400MHz to 1000MHz Downconversion Mixer with LO Buffer/Switch ABSOLUTE MAXIMUM RATINGS V to GND...........................................................-0.3V to +5.5V .................................................................................+38C/W CC JA IF+, IF-, LOBIAS, LOSEL, IFBIAS to GND...-0.3V to (V + 0.3V) .................................................................................+13C/W CC JC TAP........................................................................-0.3V to +1.4V Operating Temperature Range (Note A) ....T = -40C to +85C C LO1, LO2, LEXT to GND........................................-0.3V to +0.3V Junction Temperature......................................................+150C RF, LO1, LO2 Input Power .............................................+12dBm Storage Temperature Range .............................-65C to +150C RF (RF is DC shorted to GND through a balun) .................50mA Lead Temperature (soldering, 10s) .................................+300C Continuous Power Dissipation (T = +70C) A 20-Pin Thin QFN-EP (derate 26.3mW/C above +70C)...........2.1W Note A: T is the temperature on the exposed paddle of the package. C 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. DC ELECTRICAL CHARACTERISTICS (MAX9984 Typical Application Circuit, using component values in Table 1, V = +4.75V to +5.25V, no RF signal applied, IF+ and CC IF- outputs pulled up to V through inductive chokes, R = 953 , R = 619 , T = -40C to +85C, unless otherwise noted. Typical CC 1 2 C values are at V = +5V, T = +25C, unless otherwise noted.) CC C PARAMETER SYMBOL CONDITIONS MIN TYP MAX UNITS Supply Voltage V 4.75 5.00 5.25 V CC Supply Current I 222 265 mA CC LO SEL Input-Logic Low V 0.8 V IL LO SEL Input-Logic High V 2V IH AC ELECTRICAL CHARACTERISTICS (MAX9984 Typical Application Circuit, using component values in Table 1, V = +4.75V to +5.25V, RF and LO ports are driven from CC 50 sources, P = -3dBm to +3dBm, P = -5dBm, f = 815MHz to 1000MHz, f = 570MHz to 850MHz, f = 160MHz, f > f , LO RF RF LO IF RF LO T = -40C to +85C, unless otherwise noted. Typical values are at V = +5V, P = -5dBm, P = 0dBm, f = 910MHz, f = C CC RF LO RF LO 750MHz, f = 160MHz, T = +25C, unless otherwise noted.) (Note 1) IF C PARAMETER SYMBOL CONDITIONS MIN TYP MAX UNITS (Note 2) 815 1000 RF Frequency Range f MHz RF (Notes 2, 3) 400 (Note 2) 570 850 LO Frequency Range f (Notes 2, 3) 325 MHz LO MAX9986 960 1180 IF Frequency Range f (Note 2) 50 250 MHz IF Conversion Gain G f = 910MHz, f = 750MHz, T = +25C 7.2 8.1 9.2 dB C RF LO C Gain Variation Over Temperature T = -40C to +85C- 0.0079 dB/C C Fla tness over an y one of three fr eq uency ban ds: f = 824MHz to 849MHz RF Conversion Gain Flatness 0.25 dB f = 869MHz to 894MHz RF f = 880MHz to 915MHz RF Input Compression Point P (Note 4) 13 dBm 1dB f = 570MHz to 850MHz, f = 160MHz, LO IF 19 P = 0dBm, T = +25C (Note 5) LO C Two tones: Input Third-Order Intercept Point IIP3 dBm f = 910MHz, f = 911MHz, RF1 RF2 22 25 P = -5dBm/tone, f = 750MHz, RF LO P = 0dBm, T = +25C LO C 2 MAX9984