MAXIM MAX2664

19-5476; Rev 0; 8/10
TION KIT
EVALUA BLE
IL
AVA A
VHF/UHF Low-Noise Amplifiers
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).
Features
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
Ordering Information
Applications
Smartphones/Handsets
PART
TEMP RANGE
PIN-PACKAGE
-40NC to +85NC
4 WLP
MP3 Players
MAX2664EWS+
Home Audio/Video
MAX2665EWS+
4 WLP
-40NC to +85NC
+Denotes a lead(Pb)-free/RoHS-compliant package.
Portable Navigation Devices
Automotive
Functional Diagram
TOP SIDE VIEW
+
GND
A1
RFIN
B1
MAX2664
MAX2665
A2
VCC
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.
MAX2664/MAX2665
General Description
MAX2664/MAX2665
VHF/UHF Low-Noise Amplifiers
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
Operating Temperature Range........................... -40NC to +85NC
Junction Temperature......................................................+150NC
Storage Temperature Range............................. -65NC to +160NC
Soldering Temperature (reflow).......................................+260NC
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
(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
CONDITIONS
Supply Voltage
Supply Current
MIN
TYP
MAX
2.4
2.7
3.5
Active mode
Bypass mode, logic-low = 0V
mA
1
FA
V
Digital Input Logic-Low
Digital Input Current
V
3.3
0.7 x
VCC
Digital Input Logic-High
UNITS
-10
0.3 x
VCC
V
+10
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
CONDITIONS
MIN
TYP
MAX
Normal mode
11.8
14.8
18
Bypass mode
-8
-6
-3
UNITS
MAX2664
Power Gain
Noise Figure
Third-Order Input Intercept Point
(IIP3)
Input 1dB Compression Point
2
Normal mode
1.2
Bypass mode
6
Normal mode (Note 2)
-10
Bypass mode (Note 3)
+26
Normal mode
-5
Bypass mode
+7
dB
dB
dBm
dBm
VHF/UHF Low-Noise Amplifiers
(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
CONDITIONS
MIN
TYP
MAX
Normal mode
11.8
15.1
18
Bypass mode
-8
-5.5
-3
UNITS
MAX2665
Power Gain
Noise Figure
Third-Order Input Intercept Point
(IIP3)
Input 1dB Compression Point
Normal mode
1.1
Bypass mode
5.5
Normal mode (Note 4)
-12
Bypass mode (Note 5)
+26
Normal mode
-11
Bypass mode
+6
dB
dB
dBm
dBm
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 = +25°C, unless otherwise noted. MAX2664 and MAX2665 EV kits.)
TA = +85°C
2.7
TA = +25°C
2.5
90
80
0.7
70
0.6
60
0.5
TA = -40°C, +25°C, +85°C
0.4
2.1
0.3
30
1.9
0.2
20
1.7
0.1
10
1.6
2.1
2.6
VCC (V)
3.1
3.6
CTRL
DECREMENT
CTRL
INCREMENT
50
2.3
1.5
MAX2664 toc03
0.8
ICC (µA)
ICC (mA)
2.9
0.9
ICC (µA)
3.1
100
MAX2664 toc02
TA = -40°C
3.3
1.0
MAX2664 toc01
3.5
MAX2664/MAX2665
ICC vs. VCTRL
(VCC = 2.7V)
MAX2664/MAX2665
ICC vs. VCC
BYPASS MODE, CTRL = GND
MAX2664/MAX2665
ICC vs. VCC
NORMAL MODE, CTRL = VCC
40
0
0
1.8
2.4
3.0
VCC (V)
3.6
0
1
2
3
VCTRL (V)
3
MAX2664/MAX2665
AC ELECTRICAL CHARACTERISTICS
Typical Operating Characteristics (continued)
(TA = +25°C, unless otherwise noted. MAX2664 and MAX2665 EV kits.)
18
MAX2664 toc04
0
-1
-2
14
12
-4
S21 (dB)
-5
-6
TA = +25°C
10
TA = +85°C
8
6
-7
-8
4
-9
2
-10
0
500
1000
1500
0
300
600
900
FREQUENCY (MHz)
FREQUENCY (MHz)
MAX2664 S12
NORMAL MODE
MAX2664 S22
NORMAL MODE
0
MAX2664 toc06
0
-5
-1
-2
-10
1200
MAX2664 toc07
0
-3
S22 (dB)
-15
-20
-25
-4
-5
-6
-7
-30
-8
-35
-9
-40
-10
0
500
1000
1500
0
500
1000
FREQUENCY (MHz)
FREQUENCY (MHz)
MAX2664 S11
BYPASS MODE
MAX2664 S21
BYPASS MODE
0
MAX2664 toc08
0
-5
1500
MAX2664 toc09
S11 (dB)
-3
S12 (dB)
TA = -40°C
16
MAX2664 toc05
MAX2664 GAIN vs. FREQUENCY
NORMAL MODE
MAX2664 S11
NORMAL MODE
-1
-2
-3
S21 (dB)
-10
S11 (dB)
MAX2664/MAX2665
VHF/UHF Low-Noise Amplifiers
-15
-20
-4
-5
-6
-7
-8
-25
-9
-30
-10
0
500
1000
FREQUENCY (MHz)
4
1500
0
500
1000
FREQUENCY (MHz)
1500
VHF/UHF Low-Noise Amplifiers
(TA = +25°C, unless otherwise noted. MAX2664 and MAX2665 EV kits.)
MAX2664 S22
BYPASS MODE
MAX2664 S12
BYPASS MODE
-2
-2
-4
-6
-4
S22 (dB)
-5
-6
-12
-7
-14
-8
-16
-9
-18
-20
0
500
1000
0
1500
500
1000
1500
FREQUENCY (MHz)
FREQUENCY (MHz)
MAX2665 S11
NORMAL MODE
MAX2665 GAIN vs. FREQUENCY
NORMAL MODE
20
MAX2664 toc12
0
-2
-4
18
14
-8
12
S21 (dB)
-6
-10
-12
TA = -40°C
16
MAX2664 toc13
-10
S11 (dB)
-8
-10
TA = +25°C
10
TA = +85°C
8
-14
6
-16
4
-18
2
0
-20
0
200
400
0
600
100
200
300
FREQUENCY (MHz)
FREQUENCY (MHz)
MAX2665 S12
NORMAL MODE
MAX2665 S22
NORMAL MODE
0
MAX2664 toc14
0
-5
-2
-4
-10
400
MAX2664 toc15
S12 (dB)
-3
-6
-15
S22 (dB)
S12 (dB)
MAX2664 toc11
0
MAX2664 toc10
0
-1
-20
-8
-10
-12
-25
-14
-30
-16
-35
-18
-20
-40
0
200
400
FREQUENCY (MHz)
600
0
200
400
600
FREQUENCY (MHz)
5
MAX2664/MAX2665
Typical Operating Characteristics (continued)
Typical Operating Characteristics (continued)
(TA = +25°C, unless otherwise noted. MAX2664 and MAX2665 EV kits.)
MAX2665 S11
BYPASS MODE
MAX2665 S21
BYPASS MODE
-5
-2
-4
-6
-15
S21 (dB)
-20
-12
-25
-14
-30
-16
-35
-18
-20
-40
200
400
0
600
200
400
FREQUENCY (MHz)
FREQUENCY (MHz)
MAX2665 S12
BYPASS MODE
MAX2665 S22
BYPASS MODE
0
MAX2664 toc18
0
-2
-4
600
MAX2664 toc19
0
-2
-4
-6
-6
-8
S22 (dB)
S12 (dB)
-8
-10
-10
-8
-10
-12
-12
-14
-14
-16
-16
-18
-18
-20
-20
200
400
600
0
400
600
FREQUENCY (MHz)
GAIN vs. VCC
NORMAL MODE
NOISE FIGURE vs. FREQUENCY
MAX2664 NORMAL MODE
16
MAX2665 (150MHz)
15
2.5
2.0
TA = +85°C
MAX2664 (670MHz)
NF (dB)
14
13
1.5
1.0
12
TA = +25°C
0.5
11
10
1
200
FREQUENCY (MHz)
MAX2664 toc20
0
MAX2664 toc21
S11 (dB)
-10
2
3
VCC (V)
6
MAX2664 toc17
0
MAX2664 toc16
0
GAIN (dB)
MAX2664/MAX2665
VHF/UHF Low-Noise Amplifiers
4
TA = -40°C
0
400
500
600
700
FREQUENCY (MHz)
800
900
VHF/UHF Low-Noise Amplifiers
(TA = +25°C, unless otherwise noted. MAX2664 and MAX2665 EV kits.)
TA = +25°C
TA = -40°C
0.6
2
0.4
1
0.2
0
500
600
TA = -40°C
700
800
900
MAX2664 toc24
2
1
50
100
150
200
0
250
50
100
150
200
IIP3 vs. VCC
NORMAL MODE
IIP3 vs. VCC
BYPASS MODE
IIP3 vs. TEMPERATURE
NORMAL MODE
-12
-13
-14
-15
2.0
2.5
3.0
-5
-6
-7
27
-8
26
-9
25
MAX2664 (670MHz)
24
-11
-12
22
-13
21
-14
20
-15
1.5
2.0
2.5
3.0
3.5
MAX2665 (150MHz)
-10
23
3.5
MAX2664 (670MHz)
-50
0
50
VCC (V)
VCC (V)
TEMPERATURE (°C)
IIP3 vs. TEMPERATURE
BYPASS MODE
IP1dB vs. VCC
MAX2664 (670MHz)
IP1dB vs. VCC
MAX2665 (150MHz)
6
IP1dB (dBm)
26
MAX2664 (670MHz)
24
2
0
-2
23
-4
22
-6
21
-8
20
-10
0
50
TEMPERATURE (°C)
100
5
BYPASS
4
27
10
NORMAL
100
MAX2664 toc30
8
IP1dB (dBm)
MAX2665 (150MHz)
28
10
MAX2664 toc29
29
MAX2664 toc28
30
250
MAX2664 toc27
28
IIP3 (dBm)
MAX2664 (670MHz)
MAX2665 (150MHz)
29
MAX2664 toc26
MAX2664 toc25
30
IIP3 (dBm)
-11
-50
TA = -40°C
3
FREQUENCY (MHz)
-10
25
TA = +25°C
FREQUENCY (MHz)
MAX2665 (150MHz)
1.5
4
FREQUENCY (MHz)
-9
IIP3 (dBm)
TA = +25°C
0
400
IIP3 (dBm)
5
0.8
3
TA = +85°C
6
NF (dB)
1.0
NF (dB)
NF (dB)
1.2
5
4
TA = +85°C
1.4
6
7
MAX2664 toc23
TA = +85°C
7
1.6
MAX2664 toc22
8
NOISE FIGURE vs. FREQUENCY
MAX2665 BYPASS MODE
NOISE FIGURE vs. FREQUENCY
MAX2665 NORMAL MODE
NOISE FIGURE vs. FREQUENCY
MAX2664 BYPASS MODE
BYPASS
0
-5
NORMAL
-10
-15
1
2
3
VCC (V)
4
1
2
3
4
VCC (V)
7
MAX2664/MAX2665
Typical Operating Characteristics (continued)
Typical Operating Characteristics (continued)
(TA = +25°C, unless otherwise noted. MAX2664 and MAX2665 EV kits.)
IP1dB vs. TEMPERATURE
MAX2665 (150MHz)
IP1dB vs. TEMPERATURE
MAX2664 (670MHz)
6
MAX2664 toc32
8
5
IP1dB (dBm)
BYPASS
4
IP1dB (dBm)
10
MAX2664 toc31
10
2
0
NORMAL
-2
BYPASS
0
-5
NORMAL
-4
-6
-10
-8
-10
-50
0
100
50
-15
-50
VCC (V)
MAX2665 BYPASS TO NORMAL RESPONSE
100
50
MAX2665 NORMAL TO BYPASS RESPONSE
MAX2664 toc34
50mV/div
50mV/div
MAX2664 toc33
10µs/div
VCC = 2.7V, fIN = 150MHz, PIN = -30dBm
4µs/div
VCC = 2.7V, fIN = 150MHz, PIN = -30dBm
MAX2664 BYPASS TO NORMAL RESPONSE
MAX2664 NORMAL TO BYPASS RESPONSE
MAX2664 toc36
50mV/div
MAX2664 toc35
4µs/div
VCC = 2.7V, fIN = 670MHz, PIN = -30dBm
8
0
VCC (V)
50mV/div
MAX2664/MAX2665
VHF/UHF Low-Noise Amplifiers
4µs/div
VCC = 2.7V, fIN = 670MHz, PIN = -30dBm
VHF/UHF Low-Noise Amplifiers
TOP VIEW
+
GND
A1
A2
VCC
B2
RFOUT/ CTRL
MAX2664
MAX2665
RFIN
B1
WLP
Bump Description
BUMP
NAME
A1
GND
Ground. Connect to the PCB ground plane with minimal trace inductance.
FUNCTION
A2
VCC
Supply Voltage. Bypass to ground with a 1000pF capacitor as close as possible to the IC.
B1
RFIN
RF Input. Requires an external matching inductor and DC-blocking capacitor. The nominal
internal DC voltage is 750mV.
B2
RFOUT/CTRL
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.
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
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.
9
MAX2664/MAX2665
Bump Configuration
MAX2664/MAX2665
VHF/UHF Low-Noise Amplifiers
Table 1. MAX2664 Typical Device S-Parameter at VCC = 2.7V, TA = +25NC, Z0 = 50I
FREQUENCY (MHz)
|S11|
S11
ANGLE
|S21|
S21
ANGLE
|S12|
S12
ANGLE
|S22|
S22
ANGLE
470
500
530
560
590
620
650
680
0.6664
0.6675
0.6674
0.6674
0.6673
0.6667
0.6651
0.6662
-55.7
-58.9
-62.0
-65.0
-67.8
-70.6
-73.4
-75.9
4.945
4.964
4.979
4.978
4.972
4.958
4.938
4.916
167.1
163.9
160.8
157.8
154.8
152.0
149.1
146.3
0.0449
0.0462
0.0474
0.0484
0.0500
0.0507
0.0523
0.0528
36.7
35.5
34.9
33.6
32.4
31.0
30.8
29.5
0.2847
0.2795
0.2769
0.2787
0.2819
0.2858
0.2937
0.3011
-65.8
-64.5
-63.2
-62.2
-61.3
-60.9
-60.7
-60.7
710
740
0.6651
0.6639
-78.4
-80.9
4.885
4.852
143.7
140.9
0.0539
0.0550
27.9
26.6
0.3098
0.3185
-61.2
-61.6
770
800
830
860
0.6624
0.6610
0.6598
0.6600
-83.2
-85.5
-87.7
-89.7
4.810
4.764
4.714
4.667
138.2
135.7
133.1
130.7
0.0560
0.0570
0.0573
0.0579
25.6
25.1
24.0
22.1
0.3276
0.3372
0.3478
0.3571
-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)
|S11|
S11
ANGLE
|S21|
S21
ANGLE
|S12|
S12
ANGLE
|S22|
S22
ANGLE
60
90
120
150
180
210
240
0.4608
0.4944
0.5160
0.5368
0.5601
0.5800
0.6006
-13.9
-29.2
-42.2
-53.0
-62.9
-71.6
-79.3
5.505
5.564
5.507
5.366
5.173
4.979
4.783
-176.6
172.6
164.2
156.6
150.4
144.7
139.5
0.0519
0.0546
0.0571
0.0593
0.0612
0.0630
0.0649
27.3
21.5
19.2
16.5
15.9
14.3
13.1
0.5060
0.4518
0.4270
0.4181
0.4036
0.3948
0.3870
-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)
Fmin (dB)
470
500
1.014
GOPT ANGLE
47.4
0.1724
1.017
0.2680
50.1
0.1709
530
1.021
0.2691
52.8
0.1695
560
1.024
0.2703
55.4
0.1681
590
1.028
0.2718
58.0
0.1667
620
1.032
0.2735
60.6
0.1653
650
1.036
0.2753
63.1
0.1639
680
1.040
0.2774
65.5
0.1626
710
1.045
0.2796
67.9
0.1612
740
1.049
0.2820
70.3
0.1599
770
1.054
0.2845
72.6
0.1586
800
1.059
0.2871
74.9
0.1573
830
1.064
0.2899
77.1
0.1560
860
1.070
0.2927
79.3
0.1547
*rn is normalized.
10
rn*
| GOPT |
0.2673
VHF/UHF Low-Noise Amplifiers
MAX2664/MAX2665
Table 4. MAX2665 Typical Noise Parameters VCC = 2.7V, TA = +25NC, Z0 = 50I
rn*
FREQUENCY (MHz)
Fmin (dB)
60
0.911
| GOPT |
0.1390
GOPT ANGLE
34.5
0.1241
90
0.928
0.1458
47.2
0.1240
120
0.940
0.1592
58.1
0.1237
150
0.949
0.1766
67.0
0.1233
180
0.958
0.1962
74.5
0.1227
210
0.967
0.2170
80.7
0.1221
240
0.975
0.2383
86.2
0.1213
*rn 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 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).
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.
Table 5. Logic Table
CTRL
MODE
High
Active
Low
Bypass
Chip Information
PROCESS: SiGe BiCMOS
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
PACKAGE
CODE
OUTLINE
No.
LAND
PATTERN No.
4 WLP
W40A0+1
21-0480
—
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.
11
VHF/UHF Low-Noise Amplifiers
MAX2664/MAX2665
Typical Application Circuit
VCC
1000pF
0I
0.1µF
GND
10µF
VCC
MAX2664
MAX2665
0I
RFIN
(MAX2664) 10nH
(MAX2665) 33nH
(MAX2664) 470pF
(MAX2665) 2200pF
RFIN
RFOUT
RFOUT
1kI
CTRL (BYPASS CONTROL)
12
1000pF
VHF/UHF Low-Noise Amplifiers
REVISION
NUMBER
REVISION
DATE
0
8/10
DESCRIPTION
Initial release
PAGES
CHANGED
—
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
© 2010
Maxim Integrated Products 13
Maxim is a registered trademark of Maxim Integrated Products, Inc.
MAX2664/MAX2665
Revision History