Features. General Description. Applications. Ordering Information. Functional Diagram

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1 EVALUATION KIT AVAILABLE MAX66/MAX665 General Description The MAX66 and MAX665 are ultra-compact LNAs for VHF/UHF applications. These devices incorporate a broadband LNA with an integrated bypass switch. The MAX66 covers the UHF frequency range from 7MHz to 86MHz, and the MAX665 covers the VHF frequency range from 75MHz to 3MHz. Each device has a zero-power bypass mode for improved high-signal-level handling conditions. Additionally, the output port is internally matched to 5Ω while a single external inductor is used to match the input port to 5Ω. The MAX66 and MAX665 are available in a -bump (.8mm x.8mm x.6mm), lead-free, wafer-level package (WLP). Applications Smartphones/Handsets MP3 Players Home Audio/Video Portable Navigation Devices Features UHF and VHF Frequency Range MAX66: 7MHz to 86MHz MAX665: 75MHz to 3MHz Low Noise Figure MAX66: 1.dB MAX665: 1.1dB High Gain: 15dB Zero-Power Bypass Mode Single +.V to +3.5V Supply Voltage Low Current: 3.3mA Small Footprint:.8mm x.8mm Thin Profile:.6mm Ordering Information PART TEMP RANGE PIN-PACKAGE MAX66EWS+ ºC to +85ºC WLP MAX665EWS+ ºC to +85ºC WLP +Denotes a lead(pb)-free/rohs-compliant package. Functional Diagram TOP SIDE VIEW + GND A1 MAX66 MAX665 A V CC RFIN B1 B RFOUT/ CTRL 1976; Rev 1; 3/15

2 Absolute Maximum Ratings V CC to GND...-.3V to +3.6V Other Pins to GND V to (Operating V CC +.3V) Maximum RF Input Power...+1dBm Short-Circuit Duration: RFIN, RFOUT/CTRL... 1s Continuous Power Dissipation (T A = +7ºC) WLP (derates 9.7mW/ºC above +7ºC)...776mW Operating Temperature Range...ºC to +85ºC Junction Temperature ºC Storage Temperature Range...5ºC to +16ºC Soldering Temperature (reflow)... +6ºC CAUTION! ESD SENSITIVE DEVICE 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 (MAX66 and MAX665 EV kits. V CC =.V to 3.5V, T A = ºC to +85ºC, no RF signals are applied, RFIN and RFOUT/CTRL are open circuit. Typical values are at V CC =.7V and T A = +5ºC, unless otherwise noted.) (Note 1) PARAMETER CONDITIONS MIN TYP MAX UNITS Supply Voltage V Supply Current Digital Input Logic-High Active mode 3.3 ma Bypass mode, logic-low = V 1 µa Digital Input Logic-Low.3 x V CC V Digital Input Current µa.7 x V CC V AC Electrical Characteristics (MAX66 EV kit. V CC =.V to 3.5V, T A = ºC to +85ºC, UHF f RFIN = 67MHz. Typical values are at V CC =.7V and T A = +5ºC, unless otherwise noted.) (Note 1) MAX66 Power Gain Noise Figure PARAMETER CONDITIONS MIN TYP MAX UNITS Third-Order Input Intercept Point (IIP3) Input 1dB Compression Point Normal mode Bypass mode -3 Normal mode 1. Bypass mode 6 Normal mode (Note ) -1 Bypass mode (Note 3) +6 Normal mode Bypass mode +7 db db dbm dbm Maxim Integrated

3 AC Electrical Characteristics (continued) (MAX66 EV kit. V CC =.V to 3.5V, T A = ºC to +85ºC, UHF f RFIN = 67MHz. Typical values are at V CC =.7V and T A = +5ºC, unless otherwise noted.) (Note 1) MAX665 Power Gain Noise Figure PARAMETER CONDITIONS MIN TYP MAX UNITS Third-Order Input Intercept Point (IIP3) Input 1dB Compression Point Normal mode Bypass mode.5-3 Normal mode 1.1 Bypass mode 5.5 Normal mode (Note ) Bypass mode (Note 5) +6 Normal mode -11 Bypass mode +6 Note 1: Min and max limits guaranteed by test at T A = +5ºC and guaranteed by design and characterization at T A = ºC and T A = +85ºC. Note : Tone-1 = 67MHz (5dBm), Tone = 676MHz (5dBm). Note 3: Tone-1 = 67MHz (dbm), Tone = 676MHz (dbm). Note : Tone-1 = 15MHz (5dBm), Tone = 156MHz (5dBm). Note 5: Tone-1 = 15MHz (dbm), Tone = 156MHz (dbm). db db dbm dbm Typical Operating Characteristics (, unless otherwise noted. MAX66 and MAX665 EV kits.) MAX66/MAX665 I CC vs. V CC, CTRL = V CC T A = C MAX66 toc MAX66/MAX665 I CC vs. V CC, CTRL = GND MAX66 toc MAX66/MAX665 I CC vs. V CTRL (V CC =.7V) MAX66 toc3 ICC (ma) ICC (µa) T A = C, +5 C, +85 C ICC (µa) CTRL DECREMENT CTRL INCREMENT V CTRL (V) Maxim Integrated 3

4 Typical Operating Characteristics (continued) (, unless otherwise noted. MAX66 and MAX665 EV kits.) S11 (db) MAX66 S11 MAX66 toc GAIN (db) MAX66 GAIN vs. FREQUENCY T A = C MAX66 toc S1 (db) MAX66 S1 MAX66 toc6 S (db) MAX66 S MAX66 toc MAX66 S11 MAX66 toc8-1 MAX66 S1 MAX66 toc9 S11 (db) -1 S1 (db) Maxim Integrated

5 Typical Operating Characteristics (continued) (, unless otherwise noted. MAX66 and MAX665 EV kits.) -1 MAX66 S1 MAX66 toc1 MAX66 S MAX66 toc11-3 S1 (db) S (db) MAX665 S11 MAX66 toc MAX665 GAIN vs. FREQUENCY T A = C MAX66 toc13 1 S11 (db) -1 GAIN (db) S1 (db) MAX665 S1 MAX66 toc1 S (db) MAX665 S MAX66 toc Maxim Integrated 5

6 Typical Operating Characteristics (continued) (, unless otherwise noted. MAX66 and MAX665 EV kits.) S11 (db) MAX665 S11 MAX66 toc16 S1 (db) MAX665 S1 MAX66 toc MAX665 S1 MAX66 toc18 MAX665 S MAX66 toc19 S1 (db) -1 S (db) GAIN vs. V CC MAX665 (15MHz) MAX66 toc.5. NOISE FIGURE vs. FREQUENCY MAX66 MAX66 toc1 GAIN (db) MAX66 (67MHz) NF (db) T A = C Maxim Integrated 6

7 Typical Operating Characteristics (continued) (, unless otherwise noted. MAX66 and MAX665 EV kits.) NF (db) NOISE FIGURE vs. FREQUENCY MAX66 T A = C MAX66 toc NF (db) NOISE FIGURE vs. FREQUENCY MAX665 T A = C MAX66 toc3 NF (db) NOISE FIGURE vs. FREQUENCY MAX665 T A = C MAX66 toc IIP3 vs. V CC MAX665 (15MHz) MAX66 toc IIP3 vs. V CC MAX665 (15MHz) MAX66 toc6-7 IIP3 vs. TEMPERATURE MAX66 toc7 IIP3 (dbm) MAX66 (67MHz) IIP3 (dbm) MAX66 (67MHz) IIP3 (dbm) MAX665 (15MHz) MAX66 (67MHz) TEMPERATURE ( C) IIP3 vs. TEMPERATURE MAX665 (15MHz) MAX66 toc IP1dB vs. V CC MAX66 (67MHz) MAX66 toc9 1 5 IP1dB vs. V CC MAX665 (15MHz) MAX66 toc3 IIP3 (dbm) MAX66 (67MHz) IP1dB (dbm) BYPASS NORMAL IP1dB (dbm) BYPASS NORMAL TEMPERATURE ( C) Maxim Integrated 7

8 Typical Operating Characteristics (continued) (, unless otherwise noted. MAX66 and MAX665 EV kits.) IP1dB vs. TEMPERATURE MAX66 (67MHz) MAX66 toc IP1dB vs. TEMPERATURE MAX665 (15MHz) MAX66 toc3 IP1dB (dbm) BYPASS NORMAL IP1dB (dbm) BYPASS NORMAL MAX665 BYPASS TO NORMAL RESPONSE MAX66 toc33 MAX665 NORMAL TO BYPASS RESPONSE MAX66 toc3 5mV/div 5mV/div 1µs/div V CC =.7V, f IN = 15MHz, P IN = -3dBm µs/div V CC =.7V, f IN = 15MHz, P IN = -3dBm MAX66 BYPASS TO NORMAL RESPONSE MAX66 toc35 MAX66 NORMAL TO BYPASS RESPONSE MAX66 toc36 5mV/div 5mV/div µs/div V CC =.7V, f IN = 67MHz, P IN = -3dBm µs/div V CC =.7V, f IN = 67MHz, P IN = -3dBm Maxim Integrated 8

9 Bump Configuration TOP VIEW GND + A1 A V CC MAX66 MAX665 RFIN B1 B RFOUT/ CTRL WLP Bump Description BUMP NAME FUNCTION A1 GND Ground. Connect to the PCB ground plane with minimal trace inductance. A V CC Supply Voltage. Bypass to ground with a 1pF capacitor as close as possible to the IC. B1 B RFIN RFOUT/CTRL RF Input. Requires an external matching inductor and DC-blocking capacitor. The nominal internal DC voltage is 75mV. RF Output and Bypass Control (see the Applications Information section). RFOUT is internally matched to 5Ω and incorporates an internal DC-blocking capacitor. Detailed Description The MAX66/MAX665 are low-power LNAs designed for VHF/UHF applications. The devices feature an internal LNA bypass control mode for better linearity under highinput-signal power conditions. The devices are offered in a small WLP package. Input and Output Matching Only an inductor in series with a DC-blocking capacitor is needed to form the input-matching network. The Typical Application Circuit shows the recommended inputmatching network. These values are optimized for the best simultaneous gain, noise figure, and return loss performance. Tables 1 and list typical device S-parameter values. The devices integrate an on-chip 5Ω outputmatching network, eliminating the need for external matching components. Maxim Integrated 9

10 Table 1. MAX66 Typical Device S-Parameter at VCC =.7V, TA = +5ºC, Z = 5Ω Table. MAX665 Typical Device S-Parameter at VCC =.7V, TA = +5ºC, Z = 5Ω Table 3. MAX66 Simulated Device Noise Parameters at VCC =.7V, TA = +5ºC, Z = 5Ω *r n is normalized. S11 S11 S1 S1 S1 S1 S S S11 S11 S1 S1 S1 S1 S S FMIN (db) Г OPT Г OPT r n * Maxim Integrated 1

11 Table. MAX665 Typical Noise Parameters VCC =.7V, TA = +5ºC, Z = 5Ω FMIN (db) Г OPT Г OPT r n * *r n is normalized. Active Bypass Mode Control The devices RFOUT/CTRL pin is used to control the bypass mode of the LNA. When set to logic-high through an external 1kΩ resistor, the devices active mode is enabled. Conversely, when connected to logic-low, the devices bypass mode is enabled. An external DC-blocking capacitor should be used to isolate the control function of this dual-purpose pin (see the Typical Application Circuit). Applications Information A properly designed PCB is essential to any RF microwave circuit. Use controlled-impedance lines on all highfrequency inputs and outputs. Bypass V CC with decoupling capacitors located close to the device. For long V CC lines, it might be necessary to add additional decoupling capacitors. Locate these additional capacitors further away from the device package. Proper grounding of the GND pin is essential. If the PCB uses a topside RF ground, connect it directly to the GND pin. For a board where the ground is not on the component layer, connect the GND pin to the board with multiple vias close to the package. Refer to for the MAX66/ MAX665 S-parameter download, MAX66/MAX665 EV kit schematic, gerbers, PADS layout file, and BOM information. Table 5. Logic Table RFOUT/CTRL High Low Chip Information PROCESS: SiGe BiCMOS PACKAGE TYPE PACKAGE CODE OUTLINE NO. MODE Active Bypass Package Information For the latest package outline information and land patterns (footprints), go to Note that a +, #, or - in the package code indicates RoHS status only. Package drawings may show a different suffix character, but the drawing pertains to the package regardless of RoHS status. LAND PATTERN NO. WLP WA Maxim Integrated 11

12 Typical Application Circuit 1pF Ω V CC.1µF 1µF GND MAX66 MAX665 V CC RFIN (MAX66) 1nH (MAX665) 33nH (MAX66) 7pF (MAX665) pf RFIN RFOUT 1kΩ Ω 1pF RFOUT CTRL (BYPASS CONTROL) Maxim Integrated 1

13 Revision History REVISION NUMBER REVISION DATE DESCRIPTION PAGES CHANGED 8/1 Initial release 1 3/15 Removed automotive reference from data sheet 1 For pricing, delivery, and ordering information, please contact Maxim Direct at 18896, or visit Maxim Integrated s website at Maxim Integrated cannot assume responsibility for use of any circuitry other than circuitry entirely embodied in a Maxim Integrated product. No circuit patent licenses are implied. Maxim Integrated reserves the right to change the circuitry and specifications without notice at any time. The parametric values (min and max limits) shown in the Electrical Characteristics table are guaranteed. Other parametric values quoted in this data sheet are provided for guidance. Maxim Integrated and the Maxim Integrated logo are trademarks of Maxim Integrated Products, Inc. 15 Maxim Integrated Products, Inc. 13