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19-5476; Rev 0; 8/10
TION KIT EVALUA BLE ILA AVA
VHF/UHF Low-Noise Amplifiers MAX2664/MAX2665
General Description
The MAX2664 and MAX2665 are ultra-compact LNAs for VHF/UHF applications. These devices incorporate a broadband LNA with an integrated bypass switch. The MAX2664 covers the UHF frequency range from 470MHz to 860MHz, and the MAX2665 covers the VHF frequency range from 75MHz to 230MHz. Each device has a zero-power bypass mode for improved high-signal-level handling conditions. Additionally, the output port is internally matched to 50I while a single external inductor is used to match the input port to 50I. The MAX2664 and MAX2665 are available in a 4-bump (0.8mm x 0.8mm x 0.64mm), lead-free, wafer-level package (WLP). S UHF and VHF Frequency Range MAX2664: 470MHz to 860MHz MAX2665: 75MHz to 230MHz S Low Noise Figure MAX2664: 1.2dB MAX2665: 1.1dB S High Gain: 15dB S Zero-Power Bypass Mode S Single +2.4V to +3.5V Supply Voltage S Low Current: 3.3mA S Small Footprint: 0.8mm x 0.8mm S Thin Profile: 0.64mm
Features
Applications
Smartphones/Handsets MP3 Players Home Audio/Video Portable Navigation Devices Automotive
PART MAX2664EWS+
Ordering Information
TEMP RANGE -40NC to +85NC PIN-PACKAGE 4 WLP
MAX2665EWS+ 4 WLP -40NC to +85NC +Denotes a lead(Pb)-free/RoHS-compliant package.
Functional Diagram
TOP SIDE VIEW
+ GND
A1
MAX2664 MAX2665
A2
VCC
RFIN
B1
B2
RFOUT/CTRL
_______________________________________________________________ Maxim Integrated Products 1
For pricing, delivery, and ordering information, please contact Maxim Direct at 1-888-629-4642, or visit Maxim's website at www.maxim-ic.com.
VHF/UHF Low-Noise Amplifiers MAX2664/MAX2665
ABSOLUTE MAXIMUM RATINGS
VCC to GND....................................................-0.3V to +3.6V Other Pins to GND.......... ...... -0.3V to (Operating VCC + 0.3V) Maximum RF Input Power ............................................. +10dBm Short-Circuit Duration: RFIN, RFOUT/CTRL .......................... 10s Continuous Power Dissipation (TA = +70NC) WLP (derates 9.7mW/NC above +70NC) ......................776mW
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.
Operating Temperature Range .......................... -40NC to +85NC Junction Temperature .....................................................+150NC Storage Temperature Range............................ -65NC to +160NC Soldering Temperature (reflow) ......................................+260NC
DC ELECTRICAL CHARACTERISTICS
(MAX2664 and MAX2665 EV kits. VCC = 2.4V to 3.5V, TA = -40NC to +85NC, no RF signals are applied, RFIN/RFOUT are open circuit. Typical values are at VCC = 2.7V and TA = 25NC, unless otherwise noted.) (Note 1) PARAMETER Supply Voltage Supply Current Digital Input Logic-High Digital Input Logic-Low Digital Input Current -10 Active mode Bypass mode, logic-low = 0V 0.7 x VCC 0.3 x VCC +10 CONDITIONS MIN 2.4 TYP 2.7 3.3 1 MAX 3.5 UNITS V mA FA V V FA
AC ELECTRICAL CHARACTERISTICS
(MAX2664 EV kit. VCC = 2.4V to 3.5V, TA = -40NC to +85NC, UHF fRFIN = 670MHz. Typical values are at VCC = 2.7V and TA = +25NC, unless otherwise noted.) (Note 1) PARAMETER MAX2664 Power Gain Noise Figure Third-Order Input Intercept Point (IIP3) Input 1dB Compression Point Normal mode Bypass mode Normal mode Bypass mode Normal mode (Note 2) Bypass mode (Note 3) Normal mode Bypass mode 11.8 -8 14.8 -6 1.2 6 -10 +26 -5 +7 18 -3 dB dB dBm dBm CONDITIONS MIN TYP MAX UNITS
2
VHF/UHF Low-Noise Amplifiers
AC ELECTRICAL CHARACTERISTICS
(MAX2665 EV kit. VCC = 2.4V to 3.5V, TA = -40NC to +85NC, UHF fRFIN = 670MHz. Typical values are at VCC = 2.7V and TA = +25NC, unless otherwise noted.) (Note 1) PARAMETER MAX2665 Power Gain Noise Figure Third-Order Input Intercept Point (IIP3) Input 1dB Compression Point Normal mode Bypass mode Normal mode Bypass mode Normal mode (Note 4) Bypass mode (Note 5) Normal mode Bypass mode 11.8 -8 15.1 -5.5 1.1 5.5 -12 +26 -11 +6 18 -3 dB dB dBm dBm CONDITIONS MIN TYP MAX UNITS
MAX2664/MAX2665
Note 1: Min and max limits guaranteed by test at TA = +25NC and guaranteed by design and characterization at TA = -40NC and TA = +85NC. Note 2: Tone-1 = 670MHz (-25dBm), Tone-2 = 676MHz (-25dBm). Note 3: Tone-1 = 670MHz (0dBm), Tone-2 = 676MHz (0dBm). Note 4: Tone-1 = 150MHz (-25dBm), Tone-2 = 156MHz (-25dBm). Note 5: Tone-1 = 150MHz (0dBm), Tone-2 = 156MHz (0dBm).
Typical Operating Characteristics
(TA = +25C, unless otherwise noted. MAX2664 and MAX2665 EV kits.)
MAX2664/MAX2665 ICC vs. VCC NORMAL MODE, CTRL = VCC
MAX2664 toc01
MAX2664/MAX2665 ICC vs. VCC BYPASS MODE, CTRL = GND
MAX2664 toc02
MAX2664/MAX2665 ICC vs. VCTRL (VCC = 2.7V)
90 80 70 ICC (A) 60 50 40 30 20 10 0 CTRL DECREMENT CTRL INCREMENT
MAX2664 toc03
3.5 3.3 3.1 2.9 ICC (mA) 2.7 2.5 2.3 2.1 1.9 1.7 1.5 1.6
TA = -40C
1.0 0.9 0.8 0.7 ICC (A) 0.6 0.5 0.4 0.3 0.2 0.1 0 1.8 2.4 VCC (V) 3.0 TA = -40C, +25C, +85C
100
TA = +85C TA = +25C
2.1
2.6 VCC (V)
3.1
3.6
3.6
0
1 VCTRL (V)
2
3
3
VHF/UHF Low-Noise Amplifiers MAX2664/MAX2665
Typical Operating Characteristics (continued)
(TA = +25C, unless otherwise noted. MAX2664 and MAX2665 EV kits.)
MAX2664 S11 NORMAL MODE
MAX2664 toc04
MAX2664 GAIN vs. FREQUENCY NORMAL MODE
16 14 12 S21 (dB) 10 8 6 4 2 0 TA = +25C TA = +85C TA = -40C
MAX2664 toc05 MAX2664 toc09 MAX2664 toc07
0 -1 -2 -3 S11 (dB) -4 -5 -6 -7 -8 -9 -10 0 500 1000
18
1500
0
300
600 FREQUENCY (MHz)
900
1200
FREQUENCY (MHz)
MAX2664 S12 NORMAL MODE
MAX2664 toc06
MAX2664 S22 NORMAL MODE
0 -1 -2 -3 S22 (dB) -4 -5 -6 -7 -8 -9 -10
0 -5 -10 S12 (dB) -15 -20 -25 -30 -35 -40 0 500 1000
1500
0
500
1000
1500
FREQUENCY (MHz)
FREQUENCY (MHz)
MAX2664 S11 BYPASS MODE
MAX2664 toc08
MAX2664 S21 BYPASS MODE
0 -1 -2 -3 S21 (dB) -4 -5 -6 -7 -8 -9 -10
0 -5 -10 S11 (dB) -15 -20 -25 -30 0 500 1000
1500
0
500
1000
1500
FREQUENCY (MHz)
FREQUENCY (MHz)
4
VHF/UHF Low-Noise Amplifiers
Typical Operating Characteristics (continued)
(TA = +25C, unless otherwise noted. MAX2664 and MAX2665 EV kits.)
MAX2664 S12 BYPASS MODE
MAX2664 toc10
MAX2664/MAX2665
MAX2664 S22 BYPASS MODE
-2 -4 -6 S22 (dB) -8 -10 -12 -14 -16 -18 -20
MAX2664 toc11
0 -1 -2 -3 S12 (dB) -4 -5 -6 -7 -8 -9 -10 0 500 1000
0
1500
0
500
1000
1500
FREQUENCY (MHz)
FREQUENCY (MHz)
MAX2665 S11 NORMAL MODE
MAX2664 toc12
MAX2665 GAIN vs. FREQUENCY NORMAL MODE
18 16 14 S21 (dB) 12 10 8 6 4 2 0 TA = +25C TA = +85C
MAX2664 toc13
0 -2 -4 -6 S11 (dB) -8 -10 -12 -14 -16 -18 -20 0 200 400
20 TA = -40C
600
0
100
200 FREQUENCY (MHz)
300
400
FREQUENCY (MHz)
MAX2665 S12 NORMAL MODE
MAX2664 toc14
MAX2665 S22 NORMAL MODE
-2 -4 -6 S22 (dB) -8 -10 -12 -14 -16 -18 -20
MAX2664 toc15
0 -5 -10 S12 (dB) -15 -20 -25 -30 -35 -40 0 200 400
0
600
0
200
400
600
FREQUENCY (MHz)
FREQUENCY (MHz)
5
VHF/UHF Low-Noise Amplifiers MAX2664/MAX2665
Typical Operating Characteristics (continued)
(TA = +25C, unless otherwise noted. MAX2664 and MAX2665 EV kits.)
MAX2665 S11 BYPASS MODE
MAX2664 toc16
MAX2665 S21 BYPASS MODE
-2 -4 -6 S21 (dB) -8 -10 -12 -14 -16 -18 -20
MAX2664 toc17
0 -5 -10 S11 (dB) -15 -20 -25 -30 -35 -40 0 200 400
0
600
0
200
400
600
FREQUENCY (MHz)
FREQUENCY (MHz)
MAX2665 S12 BYPASS MODE
MAX2664 toc18
MAX2665 S22 BYPASS MODE
-2 -4 -6 S22 (dB) -8 -10 -12 -14 -16 -18 -20
MAX2664 toc19
0 -2 -4 -6 S12 (dB) -8 -10 -12 -14 -16 -18 -20 0 200 400
0
600
0
200
400
600
FREQUENCY (MHz)
FREQUENCY (MHz)
GAIN vs. VCC NORMAL MODE
MAX2664 toc20
NOISE FIGURE vs. FREQUENCY MAX2664 NORMAL MODE
MAX2664 toc21
16 MAX2665 (150MHz) 15 14 GAIN (dB) 13 12 11 10 1 2 VCC (V) 3 MAX2664 (670MHz)
2.5 2.0 TA = +85C NF (dB) 1.5 1.0 0.5 0 400 500 600 700 800
TA = +25C TA = -40C
4
900
FREQUENCY (MHz)
6
VHF/UHF Low-Noise Amplifiers
Typical Operating Characteristics (continued)
(TA = +25C, unless otherwise noted. MAX2664 and MAX2665 EV kits.)
MAX2664/MAX2665
NOISE FIGURE vs. FREQUENCY MAX2664 BYPASS MODE
MAX2664 toc22
NOISE FIGURE vs. FREQUENCY MAX2665 NORMAL MODE
MAX2664 toc23
NOISE FIGURE vs. FREQUENCY MAX2665 BYPASS MODE
6 5 NF (dB) TA = +85C
MAX2664 toc24
8 7 6 5 NF (dB) 4 3 2 1 0 400 500
TA = +85C
1.6 1.4 1.2 NF (dB)
TA = +85C
7
TA = +25C TA = -40C
1.0 0.8 0.6 0.4 0.2 0
TA = +25C
4 3 2 1 0 50 100
TA = +25C TA = -40C
TA = -40C
600
700
800
900
50
100
150 FREQUENCY (MHz)
200
250
150 FREQUENCY (MHz)
200
250
FREQUENCY (MHz)
IIP3 vs. VCC NORMAL MODE
MAX2664 toc25
IIP3 vs. VCC BYPASS MODE
MAX2664 toc26
IIP3 vs. TEMPERATURE NORMAL MODE
-6 -7 -8 IIP3 (dBm) -9 -10 -11 -12 -13 -14 -15 -50 0 50 100 TEMPERATURE (C) MAX2664 (670MHz) MAX2665 (150MHz)
MAX2664 toc27
-9 -10 -11 IIP3 (dBm) -12 -13 -14 -15 1.5 2.0
MAX2665 (150MHz)
30 29 28 27 IIP3 (dBm) 26 25 24 23 22 21 20 MAX2664 (670MHz) MAX2665 (150MHz)
-5
MAX2664 (670MHz)
2.5 VCC (V)
3.0
3.5
1.5
2.0
2.5 VCC (V)
3.0
3.5
IIP3 vs. TEMPERATURE BYPASS MODE
MAX2664 toc28
IP1dB vs. VCC MAX2664 (670MHz)
MAX2664 toc29
IP1dB vs. VCC MAX2665 (150MHz)
MAX2664 toc30
30 29 28 27 26 25 24 23 22 21 20 -50 0 50 MAX2664 (670MHz) MAX2665 (150MHz)
10 8 6 4 IP1dB (dBm) 2 0 -2 -4 -6 -8 -10 NORMAL BYPASS
10 5 IP1dB (dBm) 0 -5 NORMAL -10 -15 BYPASS
IIP3 (dBm)
100
1
2 VCC (V)
3
4
1
2 VCC (V)
3
4
TEMPERATURE (C)
7
VHF/UHF Low-Noise Amplifiers MAX2664/MAX2665
Typical Operating Characteristics (continued)
(TA = +25C, unless otherwise noted. MAX2664 and MAX2665 EV kits.)
IP1dB vs. TEMPERATURE MAX2664 (670MHz)
MAX2664 toc31
IP1dB vs. TEMPERATURE MAX2665 (150MHz)
MAX2664 toc32
10 8 6 4 IP1dB (dBm) 2 0 -2 -4 -6 -8 -10 -50 0 VCC (V) 50 NORMAL BYPASS
10 5 IP1dB (dBm) 0 -5 NORMAL -10 -15 -50 0 VCC (V) 50 BYPASS
100
100
MAX2665 BYPASS TO NORMAL RESPONSE
MAX2664 toc33
MAX2665 NORMAL TO BYPASS RESPONSE
MAX2664 toc34
50mV/div
10s/div VCC = 2.7V, fIN = 150MHz, PIN = -30dBm
50mV/div
4s/div VCC = 2.7V, fIN = 150MHz, PIN = -30dBm
MAX2664 BYPASS TO NORMAL RESPONSE
MAX2664 toc35
MAX2664 NORMAL TO BYPASS RESPONSE
MAX2664 toc36
50mV/div
4s/div VCC = 2.7V, fIN = 670MHz, PIN = -30dBm
50mV/div
4s/div VCC = 2.7V, fIN = 670MHz, PIN = -30dBm
8
VHF/UHF Low-Noise Amplifiers
Bump Configuration
TOP VIEW
+ GND
A1 A2
MAX2664/MAX2665
VCC
MAX2664 MAX2665
RFIN
B1 B2
RFOUT/ CTRL
WLP
Bump Description
BUMP A1 A2 B1 B2 NAME GND VCC RFIN RFOUT/CTRL FUNCTION Ground. Connect to the PCB ground plane with minimal trace inductance. Supply Voltage. Bypass to ground with a 1000pF capacitor as close as possible to the IC. RF Input. Requires an external matching inductor and DC-blocking capacitor. The nominal internal DC voltage is 750mV. RF Output and Bypass Control (see the Applications Information section). RFOUT is internally matched to 50I and incorporates an internal DC-blocking capacitor.
Detailed Description
The MAX2664/MAX2665 are low-power LNAs designed for VHF/UHF applications. The devices feature an internal LNA bypass control mode for better linearity under high-input-signal power conditions. The devices are offered in a small WLP package.
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 input-matching network. These values are optimized for the best simultaneous gain, noise figure, and return loss performance. Table 1 lists typical device S-parameter values. The devices integrate an on-chip 50I outputmatching network, eliminating the need for external matching components.
Input and Output Matching
9
VHF/UHF Low-Noise Amplifiers MAX2664/MAX2665
Table 1. MAX2664 Typical Device S-Parameter at VCC = 2.7V, TA = +25NC, Z0 = 50I
FREQUENCY (MHz) 470 500 530 560 590 620 650 680 710 740 770 800 830 860 |S11| 0.6664 0.6675 0.6674 0.6674 0.6673 0.6667 0.6651 0.6662 0.6651 0.6639 0.6624 0.6610 0.6598 0.6600 S11 ANGLE -55.7 -58.9 -62.0 -65.0 -67.8 -70.6 -73.4 -75.9 -78.4 -80.9 -83.2 -85.5 -87.7 -89.7 |S21| 4.945 4.964 4.979 4.978 4.972 4.958 4.938 4.916 4.885 4.852 4.810 4.764 4.714 4.667 S21 ANGLE 167.1 163.9 160.8 157.8 154.8 152.0 149.1 146.3 143.7 140.9 138.2 135.7 133.1 130.7 |S12| 0.0449 0.0462 0.0474 0.0484 0.0500 0.0507 0.0523 0.0528 0.0539 0.0550 0.0560 0.0570 0.0573 0.0579 S12 ANGLE 36.7 35.5 34.9 33.6 32.4 31.0 30.8 29.5 27.9 26.6 25.6 25.1 24.0 22.1 |S22| 0.2847 0.2795 0.2769 0.2787 0.2819 0.2858 0.2937 0.3011 0.3098 0.3185 0.3276 0.3372 0.3478 0.3571 S22 ANGLE -65.8 -64.5 -63.2 -62.2 -61.3 -60.9 -60.7 -60.7 -61.2 -61.6 -62.5 -63.5 -64.7 -66.1
Table 2. MAX2665 Typical Device S-Parameter at VCC = 2.7V, TA = +25NC, Z0 = 50I
FREQUENCY (MHz) 60 90 120 150 180 210 240 |S11| 0.4608 0.4944 0.5160 0.5368 0.5601 0.5800 0.6006 S11 ANGLE -13.9 -29.2 -42.2 -53.0 -62.9 -71.6 -79.3 |S21| 5.505 5.564 5.507 5.366 5.173 4.979 4.783 S21 ANGLE -176.6 172.6 164.2 156.6 150.4 144.7 139.5 |S12| 0.0519 0.0546 0.0571 0.0593 0.0612 0.0630 0.0649 S12 ANGLE 27.3 21.5 19.2 16.5 15.9 14.3 13.1 |S22| 0.5060 0.4518 0.4270 0.4181 0.4036 0.3948 0.3870 S22 ANGLE -32.8 -33.6 -35.0 -38.4 -41.7 -45.0 -48.4
Table 3. MAX2664 Simulated Device Noise Parameters at VCC = 2.7V, TA = +25NC, Z0 = 50I
FREQUENCY (MHz) 470 500 530 560 590 620 650 680 710 740 770 800 830 860 *rn is normalized. 10 FMIN (dB) 1.014 1.017 1.021 1.024 1.028 1.032 1.036 1.040 1.045 1.049 1.054 1.059 1.064 1.070 | GOPT | 0.2673 0.2680 0.2691 0.2703 0.2718 0.2735 0.2753 0.2774 0.2796 0.2820 0.2845 0.2871 0.2899 0.2927 GOPT ANGLE 47.4 50.1 52.8 55.4 58.0 60.6 63.1 65.5 67.9 70.3 72.6 74.9 77.1 79.3 rn* 0.1724 0.1709 0.1695 0.1681 0.1667 0.1653 0.1639 0.1626 0.1612 0.1599 0.1586 0.1573 0.1560 0.1547
VHF/UHF Low-Noise Amplifiers
Table 4. MAX2665 Typical Noise Parameters VCC = 2.7V, TA = +25NC, Z0 = 50I
FREQUENCY (MHz) 60 90 120 150 180 210 240 *rn is normalized. FMIN (dB) 0.911 0.928 0.940 0.949 0.958 0.967 0.975 | GOPT | 0.1390 0.1458 0.1592 0.1766 0.1962 0.2170 0.2383 GOPT ANGLE 34.5 47.2 58.1 67.0 74.5 80.7 86.2 rn* 0.1241 0.1240 0.1237 0.1233 0.1227 0.1221 0.1213
MAX2664/MAX2665
The devices' RFOUT/CTRL pin is used to control the bypass mode of the LNA. When set to logic-high through an external 1kI resistor, the devices' active mode is enabled. Conversely, when connected to logic-low, the devices' bypass mode is disabled. An external DC-blocking capacitor should be used to isolate the control function of this dual-purpose pin (see the Typical Application Circuit).
Active Bypass Mode Control
Table 5. Logic Table
CTRL High Low MODE Active Bypass
Chip Information
PROCESS: SiGe BiCMOS
Applications Information
A properly designed PCB is essential to any RF microwave circuit. Use controlled-impedance lines on all high-frequency inputs and outputs. Bypass VCC with decoupling capacitors located close to the device. For long VCC 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 www.maxim-ic.com for the MAX2664/MAX2665 S-parameter download, MAX2664/MAX2665 EV kit schematic, gerbers, PADS layout file, and BOM information.
Package Information
For the latest package outline information and land patterns, go to www.maxim-ic.com/packages. 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.
PACKAGE TYPE 4 WLP PACKAGE CODE W40A0+1 OUTLINE NO. 21-0480 LAND PATTERN NO. --
11
VHF/UHF Low-Noise Amplifiers MAX2664/MAX2665
Typical Application Circuit
VCC 1000pF 0I 0.1F GND
MAX2664 MAX2665
10F
VCC
0I RFIN (MAX2664) 10nH (MAX2665) 33nH (MAX2664) 470pF (MAX2665) 2200pF RFIN RFOUT 1kI
1000pF RFOUT
CTRL (BYPASS CONTROL)
12
VHF/UHF Low-Noise Amplifiers
Revision History
REVISION NUMBER 0 REVISION DATE 8/10 Initial release DESCRIPTION PAGES CHANGED --
MAX2664/MAX2665
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.
Maxim Integrated Products, 120 San Gabriel Drive, Sunnyvale, CA 94086 408-737-7600
(c)
13
2010 Maxim Integrated Products
Maxim is a registered trademark of Maxim Integrated Products, Inc.

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