Analog-Devices-Inc–Maxim-Integrated-MAX2664EWS-
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EVALUATION KIT AVAILABLE
MAX2664/MAX2665
VHF/UHF Low-Noise Amplifiers
General Description
Features
●
UHF and VHF Frequency Range
• MAX2664:
470MHz to 860MHz
• MAX2665:
75MHz to 230MHz
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.
●
Low Noise Figure
• MAX2664:
1.2dB
• MAX2665:
1.1dB
Each device has a zero-power bypass mode for improved
high-signal-level handling conditions. Additionally, the
output port is internally matched to 50Ω while a single
external inductor is used to match the input port to 50Ω.
●
High Gain: 15dB
●
Zero-Power Bypass Mode
●
Single +2.4V to +3.5V Supply Voltage
●
Low Current: 3.3mA
The MAX2664 and MAX2665 are available in a 4-bump
(0.8mm x 0.8mm x 0.64mm), lead-free, wafer-level pack-
age (WLP).
●
Small Footprint: 0.8mm x 0.8mm
●
Thin Profile: 0.64mm
Applications
●
Smartphones/Handsets
●
MP3 Players
●
Home Audio/Video
●
Portable Navigation Devices
Ordering Information
PART
TEMP RANGE
-40ºC to +85ºC
-40ºC to +85ºC
PIN-PACKAGE
4 WLP
MAX2664
EWS+
MAX2665
EWS+
4 WLP
+
Denotes a lead(Pb)-free/RoHS-compliant package.
Functional Diagram
TOP SIDE VIEW
+
GND
V
CC
A1
A2
MAX2664
MAX2665
RFIN
B1
B2
RFOUT
/
C
TRL
19-5476; Rev 1; 3/15
MAX2664/MAX2665
VHF/UHF Low-Noise Amplifiers
Absolute Maximum Ratings
V
to GND …………………………………………………-0.3V to +3.6V
Operating
T
e
mperature Range……………………….-40ºC to +85ºC
Junction
T
e
mperatur
e
.
…………………………………………….
.
+
150ºC
Storage
T
e
mperature Rang
e
.
……………………….-65ºC to +160ºC
Soldering
T
e
mperature (reflow
)
.
……………………………….
.
+
260ºC
CC
Other Pins to GND ……………… -0.3V to (Operating V
Maximum RF Input Power……………………………………….+10dBm
Short-Circuit Duration: RFIN, RFOUT/CTRL……………………. 10s
+ 0.3V)
CC
Continuous Power Dissipation (T
= +70ºC)
A
WLP (derates 9.7mW/ºC above +70ºC
)
.
…………………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.
DC Electrical Characteristics
(MAX2664 and MAX2665 EV kits. V
open circuit. Typical values are at V
= 2.4V to 3.5
V
, T
=
–
40ºC to +85ºC, no RF signals are applied, RFIN and RFOUT/CTRL are
= 2.7V and T
= +25ºC, unless otherwise noted.) (Note 1)
A
CC
CC
A
PARAMETER
CONDITIONS
MIN
TYP
2.7
3.3
1
MAX
UNITS
V
Supply Voltage
2.4
3.5
Active mode
mA
µA
Supply Current
Bypass mode, logic-low = 0V
0.7 x
Digital Input Logic-High
V
V
CC
0.3 x
Digital Input Logic-Low
Digital Input Current
V
V
CC
-10
+10
µA
AC Electrical Characteristics
(MAX2664 EV kit. V
= 2.4V to 3.5
V
, T
=
–
40ºC to +85ºC, UHF f
= 670MHz. Typical values are at V
= 2.7V and T
= +25ºC,
CC
A
RFIN
CC A
unless otherwise noted.) (Note 1)
PARAMETER
MAX2664
CONDITIONS
MIN
TYP
MAX
UNITS
Normal mode
Bypass mode
Normal mode
Bypass mode
11.8
-8
14.8
-6
18
-3
Power Gain
Noise Figure
dB
dB
1.2
6
Normal mode (Note 2)
Bypass mode (Note 3)
Normal mode
-10
+26
-5
Third-Order Input Intercept Point
(IIP3)
dBm
dBm
Input 1dB Compression Point
Bypass mode
+7
Maxim Integrated
│
2
MAX2664/MAX2665
VHF/UHF Low-Noise Amplifiers
AC Electrical Characteristics (continued)
(MAX2664 EV kit. V
= 2.4V to 3.5
V
, T
=
–
40ºC to +85ºC, UHF f
= 670MHz. Typical values are at V
= 2.7V and T
= +25ºC,
CC
A
RFIN
CC A
unless otherwise noted.) (Note 1)
PARAMETER
MAX2665
CONDITIONS
MIN
TYP
MAX
UNITS
Normal mode
Bypass mode
Normal mode
Bypass mode
11.8
-8
15.1
-5.5
1.1
5.5
-12
+26
-11
18
-3
Power Gain
Noise Figure
dB
dB
Normal mode (Note 4)
Bypass mode (Note 5)
Normal mode
Third-Order Input Intercept Point
(IIP3)
dBm
dBm
Input 1dB Compression Point
Bypass mode
+6
Note 1:
Min and max limits guaranteed by test at T
= +25ºC and guaranteed by design and characterization at T
= -40ºC and
A
A
T
= +85ºC.
A
Note 2:
T
o
ne-1 = 670MHz (-25dBm),
T
o
ne-2 = 676MHz (-25dBm).
Note 3:
T
o
ne-1 = 670MHz (0dBm),
T
o
ne-2 = 676MHz (0dBm).
Note 4:
T
o
ne-1 = 150MHz (-25dBm),
T
o
ne-2 = 156MHz (-25dBm).
Note 5:
T
o
ne-1 = 150MHz (0dBm),
T
o
ne-2 = 156MHz (0dBm).
Typical Operating Characteristics
(T =
+25°C, unless otherwise noted. MAX2664 and MAX2665 EV kits.)
A
MAX2664/MAX2665
vs. V
MAX2664/MAX2665
MAX2664/MAX2665
vs. V
I
I
vs. V
CC CTRL
I
CC
CC
CC
CC
BYPASS MODE, CTRL = GND
(V =
2.7V)
CC
NORMAL MODE, CTRL = V
CC
3.5
3.3
3.1
2.9
2.7
2.5
2.3
2.1
1.9
1.7
1.5
1.0
0.9
0.8
0.7
0.6
0.5
0.4
0.3
0.2
0.1
0
100
90
80
70
60
50
40
30
20
10
0
T
A
= -40°C
CTRL
DECREMENT
T
A
= +85°C
CTRL
INCREMENT
T
A
= +25°C
T
A
= -40°C, +25°C, +85°C
1.6
2.1
2.6
3.1
3.6
1.8
2.4
3.0
3.6
0
1
2
3
V
CC
(V)
V
CC
(V)
V
CTRL
(V)
Maxim Integrated
│
3
MAX2664/MAX2665
VHF/UHF Low-Noise Amplifiers
Typical Operating Characteristics (continued)
(T =
+25°C, unless otherwise noted. MAX2664 and MAX2665 EV kits.)
A
MAX2664 S11
MAX2664 GAIN vs. FREQUENCY
NORMAL MODE
NORMAL MODE
0
18
T
= -40°C
A
-1
-2
16
14
12
10
8
-3
T
A
= +25°C
-4
T
A
= +85°C
-5
-6
6
-7
4
-8
2
-9
-10
0
0
0
0
500
1000
1500
1500
1500
0
0
0
300
600
900
1200
FREQUENCY (MHz)
FREQUENCY (MHz)
MAX2664 S12
NORMAL MODE
MAX2664 S22
NORMAL MODE
0
-5
0
-1
-2
-10
-15
-20
-25
-30
-35
-40
-3
-4
-5
-6
-7
-8
-9
-10
500
1000
500
1000
1500
FREQUENCY (MHz)
FREQUENCY (MHz)
MAX2664 S11
BYPASS MODE
MAX2664 S21
BYPASS MODE
0
-5
0
-1
-2
-3
-10
-15
-20
-25
-30
-4
-5
-6
-7
-8
-9
-10
500
1000
500
1000
1500
FREQUENCY (MHz)
FREQUENCY (MHz)
Maxim Integrated
│
4
MAX2664/MAX2665
VHF/UHF Low-Noise Amplifiers
Typical Operating Characteristics (continued)
(T =
+25°C, unless otherwise noted. MAX2664 and MAX2665 EV kits.)
A
MAX2664 S12
MAX2664 S22
BYPASS MODE
BYPASS MODE
0
0
-1
-2
-2
-4
-3
-6
-4
-8
-5
-10
-12
-14
-16
-18
-20
-6
-7
-8
-9
-10
0
0
0
500
1000
1500
0
500
1000
1500
FREQUENCY (MHz)
FREQUENCY (MHz)
MAX2665 S11
NORMAL MODE
MAX2665 GAIN vs. FREQUENCY
NORMAL MODE
0
-2
20
18
16
14
12
10
8
T
= -40°C
A
-4
-6
-8
T
= +25°C
A
-10
-12
-14
-16
-18
-20
T
= +85°C
A
6
4
2
0
200
400
600
0
100
200
300
400
FREQUENCY (MHz)
FREQUENCY (MHz)
MAX2665 S12
NORMAL MODE
MAX2665 S22
NORMAL MODE
0
-5
0
-2
-4
-10
-15
-20
-25
-30
-35
-40
-6
-8
-10
-12
-14
-16
-18
-20
200
400
600
0
200
400
600
FREQUENCY (MHz)
FREQUENCY (MHz)
Maxim Integrated
│
5
MAX2664/MAX2665
VHF/UHF Low-Noise Amplifiers
Typical Operating Characteristics (continued)
(T =
+25°C, unless otherwise noted. MAX2664 and MAX2665 EV kits.)
A
MAX2665 S11
MAX2665 S21
BYPASS MODE
BYPASS MODE
0
0
-2
-4
-5
-10
-15
-20
-25
-30
-35
-40
-6
-8
-10
-12
-14
-16
-18
-20
0
0
1
200
400
600
600
4
0
200
400
600
600
900
FREQUENCY (MHz)
FREQUENCY (MHz)
MAX2665 S12
BYPASS MODE
MAX2665 S22
BYPASS MODE
0
-2
0
-2
-4
-4
-6
-6
-8
-8
-10
-12
-14
-16
-18
-20
-10
-12
-14
-16
-18
-20
200
400
0
200
400
FREQUENCY (MHz)
FREQUENCY (MHz)
GAIN vs. V
CC
NORMAL MODE
NOISE FIGURE vs. FREQUENCY
MAX2664 NORMAL MODE
16
15
14
13
12
11
10
2.5
2.0
1.5
1.0
0.5
0
MAX2665 (150MHz)
T
= +85°C
A
MAX2664 (670MHz)
T
= +25°C
= -40°C
A
T
A
2
3
400
500
600
700
800
V
CC
(V)
FREQUENCY (MHz)
Maxim Integrated
│
6
MAX2664/MAX2665
VHF/UHF Low-Noise Amplifiers
Typical Operating Characteristics (continued)
(T =
+25°C, unless otherwise noted. MAX2664 and MAX2665 EV kits.)
A
NOISE FIGURE vs. FREQUENCY
NOISE FIGURE vs. FREQUENCY
MAX2664 BYPASS MODE
NOISE FIGURE vs. FREQUENCY
MAX2665 NORMAL MODE
MAX2665 BYPASS MODE
8
7
6
5
4
3
2
1
0
1.6
1.4
1.2
1.0
0.8
0.6
0.4
0.2
0
7
T
= +85°C
A
T
= +85°C
A
T
= +85°C
A
6
5
4
3
2
1
0
T
A
= +25°C
T
= +25°C
= -40°C
A
T
A
= +25°C
T
A
= -40°C
T =
-40°C
A
T
A
400
1.5
-50
500
600
700
800
900
50
1.5
1
100
150
200
250
3.5
4
50
-50
1
100
150
200
250
FREQUENCY (MHz)
FREQUENCY (MHz)
FREQUENCY (MHz)
IIP3 vs. V
NORMAL MODE
IIP3 vs. V
BYPASS MODE
IIP3 vs. TEMPERATURE
NORMAL MODE
CC
CC
-9
-10
-11
-12
-13
-14
-15
30
29
28
27
26
25
24
23
22
21
20
-5
-6
MAX2665 (150MHz)
MAX2665 (150MHz)
-7
-8
MAX2665 (150MHz)
MAX2664 (670MHz)
MAX2664 (670MHz)
-9
-10
-11
-12
-13
-14
-15
MAX2664 (670MHz)
2.0
2.5
(V)
3.0
3.5
2.0
2.5
(V)
3.0
0
50
100
V
V
TEMPERATURE (°C)
CC
CC
IIP3 vs. TEMPERATURE
BYPASS MODE
IP1dB vs. V
IP1dB vs. V
CC
CC
MAX2664 (670MHz)
MAX2665 (150MHz)
30
29
28
27
26
25
24
23
22
21
20
10
8
10
5
MAX2665 (150MHz)
MAX2664 (670MHz)
6
BYPASS
NORMAL
4
BYPASS
NORMAL
2
0
0
-2
-4
-6
-8
-10
-5
-10
-15
0
50
100
2
3
2
3
4
TEMPERATURE (°C)
V
CC
(V)
V
CC
(V)
Maxim Integrated
│
7
MAX2664/MAX2665
VHF/UHF Low-Noise Amplifiers
Typical Operating Characteristics (continued)
(T =
+25°C, unless otherwise noted. MAX2664 and MAX2665 EV kits.)
A
IP1dB vs. TEMPERATURE
IP1dB vs. TEMPERATURE
MAX2664 (670MHz)
MAX2665 (150MHz)
10
10
8
6
5
BYPASS
NORMAL
4
2
BYPASS
0
0
-2
-4
-6
-8
-10
-5
NORMAL
-10
-15
-50
0
50
100
-50
0
50
100
V
CC
(V)
V
CC
(V)
MAX2665 BYPASS TO NORMAL RESPONSE
MAX2665 NORMAL TO BYPASS RESPONSE
MAX2664 toc33
MAX2664 toc34
10µs/div
4µs/div
V
= 2.7V, f
= 150MHz, P
= -30dBm
V
= 2.7V, f
= 150MHz, P
= -30dBm
CC IN
IN
CC
IN
IN
MAX2664 BYPASS TO NORMAL RESPONSE
MAX2664 NORMAL TO BYPASS RESPONSE
MAX2664 toc35
MAX2664 toc36
4µs/div
4µs/div
V
= 2.7V, f
= 670MHz, P
= -30dBm
V
= 2.7V, f
= 670MHz, P
= -30dBm
CC IN
IN
CC
IN
IN
Maxim Integrated
│
8
MAX2664/MAX2665
VHF/UHF Low-Noise Amplifiers
Bump Configuration
TOP VIEW
GND
+
V
A1
A2
CC
MAX2664
MAX2665
RFIN
B1
B2
RFOUT
/
C
TRL
WLP
Bump Description
BUMP
A1
NAME
FUNCTION
GND
Ground. Connect to the PCB ground plane with minimal trace inductance.
A2
V
Supply Voltage. Bypass to ground with a 1000pF capacitor as close as possible to the IC.
CC
RF Input. Requires an external matching inductor and DC-blocking capacitor. The nominal
internal DC voltage is 750mV.
B1
B2
RFIN
RF Output and Bypass Control (see the
Applications Information
section). RFOUT is
internally matched to 50Ω and incorporates an internal DC-blocking capacitor.
RFOUT/CTRL
Input and Output Matching
Detailed Description
Only an inductor in series with a DC-blocking capaci-
tor 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 per-
formance.
T
a
bles 1 and 2 list typical device S-parameter
values. The devices integrate an on-chip 50Ω output-
matching network, eliminating the need for external
matching components.
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.
Maxim Integrated
│
9
MAX2664/MAX2665
VHF/UHF Low-Noise Amplifiers
Table 1. MAX2664 Typical Device S-Parameter at V
= 2.7
V
, T
=
+
25ºC, Z
= 50Ω
CC
A
0
S11
ANGLE
S21
S12
S22
ANGLE
FREQUENCY (MHz)
|S11|
|S21|
|S12|
|S22|
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
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
470
500
530
560
590
620
650
680
710
740
770
800
830
860
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
-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
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
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
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
-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 V
CC
= 2.7
V
, T
=
+
25ºC, Z
= 50Ω
A
0
S11
ANGLE
S21
ANGLE
S12
S22
ANGLE
FREQUENCY (MHz)
|S11|
|S21|
|S12|
|S22|
ANGLE
27.3
21.5
19.2
16.5
15.9
14.3
13.1
60
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
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
90
120
150
180
210
240
Table 3. MAX2664 Simulated Device Noise Parameters at V
= 2.7
V
, T
=
+
25ºC, Z
= 50Ω
A 0
CC
FREQUENCY (MHz)
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
| Г
|
Г
ANGLE
r *
n
OPT
OPT
470
500
530
560
590
620
650
680
710
740
770
800
830
860
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
47.4
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
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
*
r is
normalized.
n
Maxim Integrated
│
10
MAX2664/MAX2665
VHF/UHF Low-Noise Amplifiers
Table 4. MAX2665 Typical Noise Parameters V
= 2.7
V
, T
=
+
25ºC, Z
= 50Ω
A 0
CC
FREQUENCY (MHz)
FMIN (dB)
0.911
| Г
|
Г
ANGLE
OPT
r *
n
OPT
60
0.1390
0.1458
0.1592
0.1766
0.1962
0.2170
0.2383
34.5
0.1241
0.1240
0.1237
0.1233
0.1227
0.1221
0.1213
90
0.928
47.2
58.1
67.0
74.5
80.7
86.2
120
150
180
210
240
0.940
0.949
0.958
0.967
0.975
*
r is
normalized.
n
Active Bypass Mode Control
Table 5. Logic Table
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
’
b
ypass mode is enabled
.
A
n external DC-blocking
capacitor should be used to isolate the control function of
this dual-purpose pin (see the
Typical Application Circuit
).
RFOUT/CTRL
High
MODE
Active
Low
Bypass
Chip Information
PROCESS: SiGe BiCMOS
Applications Information
A properly designed PCB is essential to any RF micro-
wave circuit. Use controlled-impedance lines on all high-
frequency inputs and outputs. Bypass V
with decoupling
CC
capacitors located close to the device. For long V
lines,
Package Information
CC
it might be necessary to add additional decoupling capaci-
tors. 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.
For the latest package outline information and land patterns
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.
MAX2665 S-parameter download, MAX2664/MAX2665
EV kit schematic, gerbers, PADS layout file, and BOM
information.
4 WLP
W40A0+1
—
Maxim Integrated
│
11
MAX2664/MAX2665
VHF/UHF Low-Noise Amplifiers
Typical Application Circuit
V
CC
1000pF
0
Ω
0.1µF
10µF
GND
RFIN
V
CC
MAX2664
MAX2665
1000pF
0
Ω
RFIN
RFOUT
(MAX2664) 10nH
(MAX2665) 33nH
RFOUT
(MAX2664) 470pF
(MAX2665) 2200pF
1k
Ω
CTRL (BYPASS CONTROL)
Maxim Integrated
│
12
MAX2664/MAX2665
VHF/UHF Low-Noise Amplifiers
Revision History
REVISION REVISION
PAGES
CHANGED
DESCRIPTION
NUMBER
DATE
0
1
8/10
3/15
Initial release
Removed automotive reference from data sheet
—
1
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.
2015 Maxim Integrated Products, Inc.
│
13
