19-2489; Rev 1; 9/02 825MHz to 915MHz, SiGe High-Linearity Active Mixer Features The MAX9982 fully integrated SiGe mixer is optimized to meet the demanding requirements of GSM850, GSM900, and CDMA850 base-station receivers. Each high-linearity device includes a local oscillator (LO) switch, LO driver, and active mixer. On-chip baluns are also integrated to allow for single-ended RF and LO inputs. Since the active mixer provides 2dB of conversion gain, the device effectively replaces the IF amplifier stage, which typically follows most passive mixer implementations. +26.8dBm Input IP3 The MAX9982 provides exceptional linearity with an input IP3 of greater than +26dBm. The integrated LO driver allows for a wide range of LO drive levels from -5dBm to +5dBm. In addition, the built-in switch enables rapid LO selection of less than 250ns, as needed for GSM frequency-hopping applications. The MAX9982 is available in a 20-pin QFN package (5mm 5mm) with an exposed paddle and is specified over the -40C to +85C extended temperature range. 12dB Noise Figure +13dBm Input 1dB Compression Point 825MHz to 915MHz RF Frequency Range 70MHz to 170MHz IF Frequency Range 725MHz to 1085MHz LO Frequency Range 2dB Conversion Gain -5dBm to +5dBm LO Drive 5V Single-Supply Operation Built-In LO Switch ESD Protection Internal RF and LO Baluns for Single-Ended Inputs Applications GSM850/GSM900 2G and 2.5G EDGE Base Station Receivers Cellular cdmaOneTM and cdma2000TM Base Station Receivers Ordering Information PART TEMP RANGE MAX9982ETP -40C to +85C PIN-PACKAGE 20 QFN-EP* (5mm x 5mm) *EP = exposed paddle. TDMA and Integrated Digital Enhanced Network (iDEN)TM Base Station Receivers Pin Configuration/ Functional Diagram Digital and Spread-Spectrum Communication Systems Microwave Links IF- GND 18 17 GND IF+ 19 16 GND 20 TOP VIEW MAX9982 Typical Application Circuit appears at end of data sheet. cdmaOne is a trademark of CDMA Development Group. cdma2000 is a trademark of Telecommunications Industry Association. RF 1 15 LO2 TAP 2 14 GND GND 3 13 GND RFBIAS 4 12 GND GND 5 11 LO1 8 9 10 GND VCC 7 GND LOSEL 6 VCC iDEN is a trademark of Motorola, Inc. QFN ________________________________________________________________ Maxim Integrated Products For pricing, delivery, and ordering information, please contact Maxim/Dallas Direct! at 1-888-629-4642, or visit Maxim's website at www.maxim-ic.com. 1 MAX9982 General Description MAX9982 825MHz to 915MHz, SiGe High-Linearity Active Mixer ABSOLUTE MAXIMUM RATINGS VCC ........................................................................-0.3V to +5.5V IF+, IF-, RFBIAS, LOSEL.............................-0.3V to (VCC + 0.3V) TAP .....................................................................................+5.0V RFBIAS Current.....................................................................5mA RF, LO1, LO2 Input Power .............................................+20dBm Continuous Power Dissipation (TA = +70C) 20-Pin QFN (derate 20.8mW/C above TA = +70C) ....1.66W Operating Temperature Range ...........................-40C to +85C Junction Temperature ......................................................+150C Storage Temperature Range .............................-65C to +150C Lead Temperature (soldering, 10s) .................................+300C 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 (Typical Application Circuit, VCC = 4.75V to 5.25V, no RF signals applied, all RF inputs and outputs terminated with 50, TA = -40C to +85C, unless otherwise noted. Typical values are at VCC = 5V, TA = +25C, unless otherwise noted.) MIN TYP MAX UNITS Supply Voltage PARAMETER VCC 4.75 5.00 5.25 V Supply Current ICC 138 168 193 mA VCC + 0.3V V Input High Voltage Input Low Voltage LOSEL Input Current SYMBOL CONDITIONS VIH 3.5 VIL ILOSEL -5 0.4 V +5 A AC ELECTRICAL CHARACTERISTICS (Typical Application Circuit, VCC = 4.75V to 5.25V, PLO = -5dBm to +5dBm, fRF = 825MHz to 915MHz, fLO = 725MHz to 1085MHz, TA = -40C to +85C, unless otherwise noted. Typical values at VCC = +5.0V, PRF = -5dBm, PLO = 0dBm, fRF = 870MHz, fLO = 770MHz, TA = +25C, unless otherwise noted.) (Notes 1, 2) PARAMETER SYMBOL CONDITIONS MIN TYP MAX UNITS RF Frequency fRF 825 915 MHz LO Frequency fLO 725 1085 MHz IF Frequency fIF 70 170 MHz -5 +5 dBm LO Drive Level Conversion Gain (Note 3) Must meet RF and LO frequency range; IF matching components affect IF frequency range PLO GC VCC = +5.0V, fIF = 100MHz, low-side injection, PRF = 0dBm, PLO = -5dBm Cellular band, fRF = 825MHz to 850MHz dB GSM band, fRF = 880MHz to 915MHz Gain Variation Over Temperature TA = -40C to +85C Gain Variation from Nominal fRF = 825MHz to 915MHz, 3 2 2.6 2.1 -0.0135 dB/C 0.6 dB _______________________________________________________________________________________ 825MHz to 915MHz, SiGe High-Linearity Active Mixer (Typical Application Circuit, VCC = 4.75V to 5.25V, PLO = -5dBm to +5dBm, fRF = 825MHz to 915MHz, fLO = 725MHz to 1085MHz, TA = -40C to +85C, unless otherwise noted. Typical values at VCC = +5.0V, PRF = -5dBm, PLO = 0dBm, fRF = 870MHz, fLO = 770MHz, TA = +25C, unless otherwise noted.) (Notes 1, 2) PARAMETER SYMBOL Inject PIN = -20dBm at fLO + 100MHz into LO port; measure 100MHz at IF port as POUT; no RF signal at RF port Conversion Loss from LO to IF Noise Figure CONDITIONS NF 47 UNITS dB 11.3 11.8 Low-side injection 12.9 High-side injection 14.5 VCC = +5.0V, PRF = 0dBm, PLO = -5dBm, TA = +25C (Notes 3, 4) 26.8 dBm 0.5 dB Input Third-Order Intercept Point IIP3 Input Third-Order Intercept Point Variation Over Temperature IIP3 TA = -40C to +85C 2x2 fRF = 915, fLO = 815MHz, fSPUR = 865MHz, PRF = -5dBm 3x3 MAX Cellular band, fRF = 825MHz to 850MHz P1dB 3 RF - 3 LO Spur Rejection TYP GSM band, fRF = 880MHz to 915MHz Input 1dB Compression Point 2 RF - 2 LO Spur Rejection MIN fRF = 915, fLO = 815MHz, fSPUR = 848.3MHz, PRF = -5dBm PLO = +5dBm 65 PLO = 0dBm 57 PLO = +5dBm 89 PLO = 0dBm 89 dB dBm dBc dBc Maximum LO Leakage at RF Port PLO = -5dBm to +5dBm, fLO = 725MHz to 1085MHz -40 dBm Maximum LO Leakage at IF Port PLO = -5dBm to +5dBm, fLO = 725MHz to 1085MHz -28 dBm Minimum RF to IF Isolation PLO = -5dBm to +5dBm, fRF = 825MHz to 915MHz 11 dB LO1 to LO2 Isolation fRF = 825MHz to 915MHz, PLO1 = PLO2 = +5dBm, fIF = 100MHz (Note 5) 51 dB LO Switching Time 50% of LOSEL to IF settled within 2 250 ns 19 dB RF Return Loss LO Return Loss IF Return Loss Note 1: Note 2: Note 3: Note 4: Note 5: Note 6: LO port active 20 LO port inactive 12 RF and LO terminated (Note 6) 15 dB dB Guaranteed by design and characterization. All limits reflect losses of external components. Output measurements taken at IF OUT of Typical Application Circuit. Production tested. Two tones at 1MHz spacing, 0dBm each at RF port. Measured at IF port at IF frequency. LO1 and LO2 are offset by 1MHz. IF return loss can be optimized by external matching components. _______________________________________________________________________________________ 3 MAX9982 AC ELECTRICAL CHARACTERISTICS (continued) Typical Operating Characteristics (Typical Application Circuit, VCC = 5V, fIF = 100MHz, PRF = -5dBm, PLO = 0dBm, TA = +25C, unless otherwise noted.) CONVERSION GAIN vs. RF FREQUENCY LOW-SIDE INJECTION 165 VCC = 5V 160 VCC = 4.75V 155 TA = -40C 2.5 TA = +25C 2.0 1.5 150 fIF = 120MHz 3.0 -15 10 35 60 85 TA = -40C 2.5 2.0 TA = +25C 1.5 TA = +85C 1.0 TA = +85C 1.0 -40 0.5 820 840 860 880 900 920 820 840 860 900 920 RF FREQUENCY (MHz) CONVERSION GAIN vs. RF FREQUENCY LOW-SIDE INJECTION CONVERSION GAIN vs. RF FREQUENCY HIGH-SIDE INJECTION CONVERSION GAIN vs. RF FREQUENCY LOW-SIDE INJECTION fIF = 120MHz 2.6 2.4 PLO = -5dBm, 0dBm, +5dBm 2.2 fIF = 100MHz 2.8 CONVERSION GAIN (dB) CONVERSION GAIN (dB) 2.4 3.0 MAX9982toc05 MAX9982toc04 2.8 2.6 2.2 2.0 PLO = -5dBm, 0dBm, +5dBm 1.8 2.0 840 860 880 900 VCC = 5V 2.2 840 860 880 900 820 920 840 860 900 920 RF FREQUENCY (MHz) 2 RF - 2 LO vs. RF FREQUENCY LOW-SIDE INJECTION 2 LO - 2 RF RESPONSE vs. RF FREQUENCY HIGH-SIDE INJECTION 2 RF - 2 LO RESPONSE vs. RF FREQUENCY LOW-SIDE INJECTION TA = +25C PRF = -5dBm PLO = +5dBm fIF = 120MHz 2 RF - 2 LO RESPONSE (dBc) 65 56 TA = +85C 54 TA = +25C 52 60 75 MAX9982 toc08 MAX9982 toc07 TA = -40C 70 58 TA = -40C PRF = -5dBm fIF = 100MHz 70 PLO = +5dBm 65 60 PLO = 0dBm 55 50 PLO = -5dBm TA = +85C 50 55 840 860 880 RF FREQUENCY (MHz) 900 920 MAX9982 toc09 RF FREQUENCY (MHz) PRF = -5dBm PLO = +5dBm fIF = 100MHz 820 880 RF FREQUENCY (MHz) 80 75 VCC = 5.25V 2.4 1.8 820 920 2 LO - 2 RF RESPONSE (dBc) 820 VCC = 4.75V 2.6 2.0 1.6 1.8 MAX9982toc06 RF FREQUENCY (MHz) fIF = 100MHz 4 880 TEMPERATURE (C) 3.0 CONVERSION GAIN (dB) MAX9982toc02 3.5 3.0 3.5 CONVERSION GAIN (dB) VCC = 5.25V 170 fIF = 100MHz CONVERSION GAIN (dB) 175 BIAS CURRENT (mA) 4.0 MAX9982toc01 180 CONVERSION GAIN vs. RF FREQUENCY HIGH-SIDE INJECTION MAX9982toc03 BIAS CURRENT vs. TEMPERATURE 2 RF - 2 LO RESPONSE (dBc) MAX9982 825MHz to 915MHz, SiGe High-Linearity Active Mixer 45 820 840 860 880 RF FREQUENCY (MHz) 900 920 820 840 860 880 RF FREQUENCY (MHz) _______________________________________________________________________________________ 900 920 825MHz to 915MHz, SiGe High-Linearity Active Mixer fIF = 100MHz PLO = 0dBm 28 INPUT IP3 (dBm) 55.0 52.5 PLO = +5dBm 50.0 fIF = 120MHz 31 TA = +85C 27 TA = +25C TA = -40C 26 25 840 860 880 900 25 820 840 860 880 900 920 820 860 880 900 RF FREQUENCY (MHz) RF FREQUENCY (MHz) INPUT IP3 vs. RF FREQUENCY LOW-SIDE INJECTION INPUT IP3 vs. RF FREQUENCY HIGH-SIDE INJECTION INPUT IP3 vs. RF FREQUENCY LOW-SIDE INJECTION fIF = 120MHz PLO = -5dBm 29 fIF = 100MHz PLO = -5dBm PLO = +5dBm 28 27 PLO = +5dBm 860 880 900 26.0 820 920 VCC = 5.0V VCC = 4.75V 25 840 27.0 26.5 26 26.5 VCC = 5.25V 27.5 INPUT IP3 (dBm) 27.5 840 860 880 900 920 820 840 860 880 900 RF FREQUENCY (MHz) RF FREQUENCY (MHz) RF FREQUENCY (MHz) INPUT P1dB vs. RF FREQUENCY LOW-SIDE INJECTION INPUT P1dB vs. RF FREQUENCY HIGH-SIDE INJECTION INPUT P1dB vs. RF FREQUENCY LOW-SIDE INJECTION fIF = 120MHz TA = +85C 13.50 15.5 fIF = 100MHz 13.5 920 MAX9982 toc18 fIF = 100MHz MAX9982 toc17 16.0 MAX9982 toc16 14.0 920 28.0 PLO = 0dBm INPUT IP3 (dBm) PLO = 0dBm 30 MAX9982 toc14 fIF = 100MHz 820 840 RF FREQUENCY (MHz) 28.0 INPUT IP3 (dBm) 920 MAX9982 toc13 820 MAX9982 toc15 45.0 TA = +85C 13.0 12.5 15.0 14.5 TA = +25C 14.0 TA = +25C TA = -40C INPUT P1dB (dBm) 13.25 INPUT P1dB (dBm) INPUT P1dB (dBm) TA = +25C 28 TA = +85C 47.5 27.0 29 27 26 PLO = -5dBm TA = -40C 30 INPUT IP3 (dBm) 57.5 32 MAX9982 toc11 PRF = -5dBm fIF = 120MHz INPUT IP3 vs. RF FREQUENCY HIGH-SIDE INJECTION 29 MAX9982 toc10 2 LO - 2 RF RESPONSE (dBc) 60.0 INPUT IP3 vs. RF FREQUENCY LOW-SIDE INJECTION MAX9982 toc12 2 LO - 2 RF RESPONSE vs. RF FREQUENCY HIGH-SIDE INJECTION PLO = -5dBm 13.00 12.75 TA = -40C 12.0 13.0 820 840 860 880 RF FREQUENCY (MHz) 900 920 PLO = 0dBm PLO = +5dBm 13.5 12.50 820 840 860 880 RF FREQUENCY (MHz) 900 920 820 840 860 880 900 920 RF FREQUENCY (MHz) _______________________________________________________________________________________ 5 MAX9982 Typical Operating Characteristics (continued) (Typical Application Circuit, VCC = 5V, fIF = 100MHz, PRF = -5dBm, PLO = 0dBm, TA = +25C, unless otherwise noted.) Typical Operating Characteristics (continued) (Typical Application Circuit, VCC = 5V, fIF = 100MHz, PRF = -5dBm, PLO = 0dBm, TA = +25C, unless otherwise noted.) LO SWITCH ISOLATION vs. RF FREQUENCY LOW-SIDE INJECTION INPUT P1dB (dBm) 13.0 VCC = 5V 12.5 LO OFFSET 1MHz fIF = 100MHz 55 53 LO OFFSET 1MHz fIF = 120MHz LO SWITCH ISOLATION (dB) VCC = 5.25V 13.5 54 MAX9982 toc20 fIF = 100MHz LO SWITCH ISOLATION (dB) MAX9982 toc19 14.0 LO SWITCH ISOLATION vs. RF FREQUENCY HIGH-SIDE INJECTION TA = +85C 52 51 TA = +25C TA = -40C MAX9982 toc21 INPUT P1dB vs. RF FREQUENCY LOW-SIDE INJECTION 50 54 53 TA = +85C 52 TA = +25C 51 TA = -40C VCC = 4.75V 49 840 860 880 900 50 820 920 840 860 920 820 840 LO OFFSET 1MHz fIF = 100MHz -32.5 LO LEAKAGE (dBm) 52 51 PLO = 0dBm 920 PLO = +5dBm -30 -35.0 -37.5 TA = +25C -40.0 900 -20 TA = -40C PLO = -5dBm 880 LO LEAKAGE AT IF PORT vs. LO FREQUENCY MAX9982 toc23 -30.0 MAX9982 toc22 54 860 RF FREQUENCY (MHz) LO LEAKAGE AT IF PORT vs. LO FREQUENCY LO SWITCH ISOLATION vs. RF FREQUENCY LOW-SIDE INJECTION LO SWITCH ISOLATION (dB) 900 RF FREQUENCY (MHz) RF FREQUENCY (MHz) 53 880 LO LEAKAGE (dBm) 820 MAX9982 toc24 12.0 PLO = +5dBm -40 PLO = 0dBm PLO = -5dBm -50 50 -42.5 TA = +85C -45.0 49 840 860 880 900 925 1025 1125 825 925 1025 LO FREQUENCY (MHz) LO LEAKAGE AT RF PORT vs. LO FREQUENCY RF LEAKAGE AT IF PORT vs. RF FREQUENCY RF LEAKAGE AT IF PORT vs. RF FREQUENCY -42 PLO = -5dBm -46 -14 -16 TA = +25C -18 -48 900 1000 LO FREQUENCY (MHz) 1100 MAX9982 toc27 PLO = -5dBm, 0dBm, +5dBm -14 -16 -20 -22 800 1125 -18 TA = +85C -20 -12 RF LEAKAGE (dBc) PLO = 0dBm TA = -40C -12 -10 MAX9982 toc26 -10 MAX9982 toc25 PLO = +5dBm 700 725 LO FREQUENCY (MHz) -40 6 825 RF FREQUENCY (MHz) -38 -44 -60 725 920 RF LEAKAGE (dBc) 820 LO LEAKAGE (dBm) MAX9982 825MHz to 915MHz, SiGe High-Linearity Active Mixer 820 840 860 880 RF FREQUENCY (MHz) 900 920 820 840 860 880 RF FREQUENCY (MHz) _______________________________________________________________________________________ 900 920 825MHz to 915MHz, SiGe High-Linearity Active Mixer NOISE FIGURE vs. RF FREQUENCY HIGH-SIDE INJECTION TA = +85C 15 NOISE FIGURE (dB) TA = +25C 12 TA = -40C 10 14 TA = +25C 13 0 5 12 10 PLO = -5dBm, 0dBm, +5dBm 15 20 25 TA = -40C 11 860 880 900 920 30 840 820 RF FREQUENCY (MHz) 860 880 900 920 840 860 880 900 920 RF FREQUENCY (MHz) IF RETURN LOSS vs. IF FREQUENCY LO RETURN LOSS vs. LO FREQUENCY 0 5 820 RF FREQUENCY (MHz) MEASURED ON LO1 PORT LOSEL IS LOGIC HIGH (LO1 INPUT SELECTED) 0 10 PLO = -5dBm 15 PLO = +5dBm 20 25 IF MATCH IS TUNED FOR 70MHz. MATCHING FOR HIGHER FREQUENCIES IS POSSIBLE. 5 RETURN LOSS (dB) 840 MAX9982 toc31 820 MAX9982 toc32 9 RETURN LOSS (dB) NOISE FIGURE (dB) SINGLE SIDEBAND RETURN LOSS (dB) TA = +85C 13 11 16 MAX9982 toc29 SINGLE SIDEBAND MAX9982 toc28 14 RF RETURN LOSS vs. RF FREQUENCY MAX9982 toc30 NOISE FIGURE vs. RF FREQUENCY LOW-SIDE INJECTION 10 15 20 25 PLO = 0dBm 30 30 700 800 900 1000 LO FREQUENCY (MHz) 1100 70 90 110 130 150 170 IF FREQUENCY (MHz) _______________________________________________________________________________________ 7 MAX9982 Typical Operating Characteristics (continued) (Typical Application Circuit, VCC = 5V, fIF = 100MHz, PRF = -5dBm, PLO = 0dBm, TA = +25C, unless otherwise noted.) 825MHz to 915MHz, SiGe High-Linearity Active Mixer MAX9982 Pin Description PIN NAME FUNCTION 1 RF 2 TAP RF Balun Center Tap. Connect bypass capacitors from this pin to ground. 3, 5, 7, 9, 12, 13, 14, 16, 17, 20, EP GND Ground 4 RFBIAS 6, 10 VCC 8 LOSEL 11 LO1 Local Oscillator Input 1. This input is internally matched to 50 and is DC shorted to ground when selected. Requires a DC-blocking capacitor. 15 LO2 Local Oscillator Input 2. This input is internally matched to 50 and is DC shorted to ground when selected. 18, 19 IF-, IF+ Differential IF Output. Connect 560nH pullup inductors and 137 pullup resistors from each of these pins to VCC for a 70MHz to 120MHz IF range. RF Input. This input is internally matched to 50 and is DC shorted to ground. Bias control for the mixer. Connect a 249 resistor from this pin to ground to set the bias current for the mixer. Power-Supply Connections. Connect a 0.1F bypass capacitor from each VCC pin to ground. Local Oscillator Select. Set this pin to logic HIGH to select LO1; set to logic LOW to select LO2. Table 1. Component List COMPONENT VALUE SIZE C1, C2, C6, C7 33pF 0603 Murata GRM1885C1H330J C3 0.033F 0603 Murata GRM188R71E333K C4, C5 0.1F 0603 Murata GRM188FS1E104Z C8, C11 220pF 0603 Murata GRM1885C1H221J C9, C10 330pF 0603 Murata GRM1885C1H331J L1, L2 560nH 1008 Coilcraft 1008CS-561XJBB R1 249 1% 0603 Panasonic ERJ-3EKF2490V R3, R4 137 1% 0603 Panasonic ERJ-3EKF1370V T1 4:1 (200:50) -- U1 -- 20-pin 5mm x 5mm QFN Detailed Description The MAX9982 downconverter mixer is designed for GSM and CDMA base station receivers with an RF frequency between 825MHz and 915MHz. It implements an active mixer that provides 2dB of overall conversion gain to the receive path, removing the need for an additional IF amplifier. The mixer has excellent input IP3 measuring +26.8dBm. The device also features integrated RF and LO baluns that allow the mixers to be driven with single-ended signals. 8 PART Mini-Circuits TC4-1W-7A MAX9982ETP RF Inputs The MAX9982 has one input (RF) that is internally matched to 50 requiring no external matching components. A 33pF DC-blocking capacitor is required at the input since the input is internally DC shorted to ground through a balun. The input frequency range is 825MHz to 915MHz. LO Inputs The mixer can be used for either high-side or low-side injection applications with an LO frequency range of _______________________________________________________________________________________ 825MHz to 915MHz, SiGe High-Linearity Active Mixer Internal LO buffers allow for a wide power range on the LO ports. The LO signal power can vary from -5dBm to +5dBm. LO1 and LO2 are internally matched to 50, so only a 33pF DC-blocking capacitor is required at each LO port. IF Outputs This mixer has an IF frequency range of 70MHz to 170MHz. The differential IF output ports require external pullup inductors to VCC to resonate out the differential on-chip capacitance of 1.8pF. See the Typical Application Circuit for recommended component values for an IF optimized for 70MHz to 100MHz. Higher IF frequencies can be optimized by reducing the values of L1 and L2. Removing the ground plane from underneath L1 and L2 reduces parasitic capacitive loading and improves VSWR. Bias Circuitry Connect a bias resistor from RFBIAS to ground to set the mixer bias current. A nominal resistor value of 249 sets an input IP3 of +26.8dBm and supply current of 168mA. Applications Information Layout Considerations A properly designed PC board is an essential part of any RF/microwave circuit. Keep RF signal lines as short as possible to reduce losses, radiation, and inductance. For best performance, route the ground pin traces directly to the exposed paddle underneath the package. Solder the exposed pad on the bottom of the device package evenly to the board ground plane to provide a heat transfer path along with RF grounding. If the PC board ground plane is not immediately available on the top metal layer, provide multiple vias between the exposed paddle connection and the PC board ground plane. Power-Supply Bypassing Proper voltage supply bypassing is essential for highfrequency circuit stability. Bypass each VCC pin with a 0.1F capacitor. Bypass TAP by placing a 33pF (C2) to ground within 100 mils of the TAP pin. Chip Information TRANSISTOR COUNT: 179 PROCESS: BiCMOS _______________________________________________________________________________________ 9 MAX9982 725MHz to 1085MHz. An internal LO switch allows for switching between two single-ended LO ports; this is useful for fast frequency changes/frequency hopping. LO switching time is typically less than 250ns. The switch is controlled by a digital input (LOSEL) that when high, selects LO1 and when low, selects LO2. 825MHz to 915MHz, SiGe High-Linearity Active Mixer MAX9982 Typical Application Circuit C9 L1 R3 5V C8 C11 R4 L2 3 T1 6 IF OUT 2 4:1 (200:50) TRANSFORMER 1 4 C1 RFIN C2 GND 16 GND 17 IF18 1 15 2 GND RFBIAS R1 IF+ MAX9982 RF TAP C3 19 20 GND C10 GND 14 3 13 4 12 5 11 LO2 GND LO2 C7 GND GND LO1 LO1 C4 9 10 VCC GND 7 8 LOSEL VCC 5V GND 6 C6 5V C5 LO SELECT 10 ______________________________________________________________________________________ 825MHz to 915MHz, SiGe High-Linearity Active Mixer b CL 0.10 M C A B D2/2 D/2 PIN # 1 I.D. QFN THIN.EPS D2 0.15 C A D k 0.15 C B PIN # 1 I.D. 0.35x45 E/2 E2/2 CL (NE-1) X e E E2 k L DETAIL A e (ND-1) X e CL CL L L e e 0.10 C A C 0.08 C A1 A3 PROPRIETARY INFORMATION TITLE: PACKAGE OUTLINE 16, 20, 28, 32L, QFN THIN, 5x5x0.8 mm APPROVAL DOCUMENT CONTROL NO. REV. 21-0140 C 1 2 ______________________________________________________________________________________ 11 MAX9982 Package Information (The package drawing(s) in this data sheet may not reflect the most current specifications. For the latest package outline information, go to www.maxim-ic.com/packages.) MAX9982 825MHz to 915MHz, SiGe High-Linearity Active Mixer Package Information (continued) (The package drawing(s) in this data sheet may not reflect the most current specifications. For the latest package outline information, go to www.maxim-ic.com/packages.) COMMON DIMENSIONS EXPOSED PAD VARIATIONS NOTES: 1. DIMENSIONING & TOLERANCING CONFORM TO ASME Y14.5M-1994. 2. ALL DIMENSIONS ARE IN MILLIMETERS. ANGLES ARE IN DEGREES. 3. N IS THE TOTAL NUMBER OF TERMINALS. 4. THE TERMINAL #1 IDENTIFIER AND TERMINAL NUMBERING CONVENTION SHALL CONFORM TO JESD 95-1 SPP-012. DETAILS OF TERMINAL #1 IDENTIFIER ARE OPTIONAL, BUT MUST BE LOCATED WITHIN THE ZONE INDICATED. THE TERMINAL #1 IDENTIFIER MAY BE EITHER A MOLD OR MARKED FEATURE. 5. DIMENSION b APPLIES TO METALLIZED TERMINAL AND IS MEASURED BETWEEN 0.25 mm AND 0.30 mm FROM TERMINAL TIP. 6. ND AND NE REFER TO THE NUMBER OF TERMINALS ON EACH D AND E SIDE RESPECTIVELY. 7. DEPOPULATION IS POSSIBLE IN A SYMMETRICAL FASHION. 8. COPLANARITY APPLIES TO THE EXPOSED HEAT SINK SLUG AS WELL AS THE TERMINALS. PROPRIETARY INFORMATION 9. DRAWING CONFORMS TO JEDEC MO220. TITLE: PACKAGE OUTLINE 16, 20, 28, 32L, QFN THIN, 5x5x0.8 mm 10. WARPAGE SHALL NOT EXCEED 0.10 mm. APPROVAL DOCUMENT CONTROL NO. REV. 21-0140 C 2 2 Maxim cannot assume responsibility for use of any circuitry other than circuitry entirely embodied in a Maxim product. No circuit patent licenses are implied. Maxim reserves the right to change the circuitry and specifications without notice at any time. 12 ____________________Maxim Integrated Products, 120 San Gabriel Drive, Sunnyvale, CA 94086 408-737-7600 (c) 2002 Maxim Integrated Products Printed USA is a registered trademark of Maxim Integrated Products.