MAX2693LEWS+T [MAXIM]
GPS/GNSS Low-Noise Amplifiers with Integrated LDO; GPS / GNSS低噪声放大器，带有集成的LDO
| 型号： | MAX2693LEWS+T |
| 厂家： | 
MAXIM INTEGRATED PRODUCTS |
| 描述： | GPS/GNSS Low-Noise Amplifiers with Integrated LDO |
| 文件： | 总10页 (文件大小：1421K) |
| 中文： | 中文翻译 | 下载： | 下载PDF数据表文档文件 |
19-6258; Rev 0; 3/12
E V A L U A T I O N K I T A V A I L A B L E
General Description
Features
The MAX2686L/MAX2693L low-noise amplifiers (LNAs)
are designed for GPS L1, Galileo, and GLONASS applica-
tions. Designed in Maxim’s advanced SiGe process, the
devices achieve high gain and low noise figure while maxi-
mizing the input-referred 1dB compression point and the
3rd-order intercept point. Both devices include an internal
LDO ideal for battery-powered applications. For current-
sensitive applications, the MAX2693L achieves excellent
performance while consuming only 1.8mA current.
S High Power Gain: 19dB (MAX2686L)
S Low Noise Figure: 0.88dB (MAX2686L)
S Integrated 50Ω Output Matching Circuit
S Low Supply Current: 1.8mA (MAX2693L)
S Wide Supply Voltage Range: 1.6V to 4.2V
S Low Bill of Materials: One Inductor, Two
Capacitors
S Small Footprint: 0.86mm x 0.86mm
S 0.4mm Pitch WLP
The devices operate from a +1.6V to +4.2V single supply.
The optional shutdown feature in the devices reduces the
supply current to less than 20FA. The devices are avail-
able in a very small, lead-free, RoHS-compliant, 0.86mm x
0.86mm x 0.65mm wafer-level package (WLP).
Applications
Automotive Navigation
Ordering Information appears at end of data sheet.
Telematics (Asset Tracking and Management)
Cellular Phones with GPS
Notebook PCs/Ultra-Mobile PCs
Recreational, Marine Navigation
Watches
Digital Cameras
Typical Operating Circuit
MAX2686L
MAX2693L
RFOUT
V
CC
RF
LDO
V
CC
A1
B1
A2
B2
OUTPUT
C2
R1
25kI
SHDN
OPTIONAL SHUTDOWN
C1
L1
RFIN
RF
GND
INPUT
MAX2686L MAX2693L
L1 = 7.3nH
C1 = 100nF
C2 = 10pF
L1 = 12nH
C1 = 100nF
C2 = 10pF
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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.
MAX2686L/MAX2693L
GPS/GNSS Low-Noise Amplifiers
with Integrated LDO
ABSOLUTE MAXIMUM RATINGS
CC
Other Pins to GND ...............-0.3V to (+ Operating V
Maximum RF Input Power...............................................+5dBm
V
to GND..........................................................-0.3V to +4.2V
Maximum Current into RF Input .........................................10mA
Operating Temperature Range.......................... -40°C to +85°C
Junction Temperature .....................................................+150°C
Storage Temperature Range............................ -65°C to +160°C
Soldering Temperature (reflow) (Note 1) ........................+260°C
+ 0.3V)
CC
Continuous Power Dissipation (T = +70°C)
A
WLP (derates 9.7mW/°C above +70°C) ......................776mW
Note 1: Refer to Application Note 1891: Wafer-Level Packaging (WLP) and Its Applications.
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 opera-
tion 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
(MAX2686L/MAX2693L EV kit, V
= 1.6V to 4.2V, T = -40°C to +85°C, no RF signals are applied. Typical values are at V
= 3.3V
CC
A
CC
and T = +25°C, unless otherwise noted.) (Note 2)
A
PARAMETER
CONDITIONS
MIN
TYP
3.3
5
MAX
UNITS
Supply Voltage
1.6
4.2
V
MAX2686L
MAX2693L
= 0V
mA
SHDN = high
1.8
Supply Current
20
µA
V
Shutdown mode, V
SHDN
Digital Input Logic-High
Digital Input Logic-Low
(Note 3)
(Note 3)
1.2
0.45
V
AC ELECTRICAL CHARACTERISTICS
(MAX2686L/MAX2693L EV kit, V
= 1.6V to 4.2V, T = -40°C to +85°C, f
= 1575.42MHz. Typical values are at V = 3.3V and
CC
CC
A
RFIN
T
= +25°C, unless otherwise noted.) (Note 2)
A
PARAMETER
CONDITIONS
MAX2686L
MIN
TYP
1575.42
19.0
MAX
UNITS
RF Frequency
Power Gain
L1 band
MHz
14.65
11.6
V
V
V
= 4.2V (Note 4)
= 1.6V
CC
CC
CC
MAX2693L
MAX2686L
MAX2693L
MAX2686L
MAX2693L
MAX2686L
MAX2693L
MAX2686L
MAX2693L
MAX2686L
MAX2693L
18.4
dB
14.85
11.6
19.1
18.7
0.88
Noise Figure
= 1.6V to 4.2V
dB
dBm
dBm
dBm
dB
1.05
-4.1
In-Band 3rd-Order Input
Intercept Point
(Note 5)
(Note 6)
(Note 7)
-14.3
-0.1
Out-of-Band 3rd-Order Input
Intercept Point
-13.9
-12.1
-11.0
11.2
Input 1dB Compression Point
Input Return Loss
MAX2686L
MAX2693L
10.7
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2
MAX2686L/MAX2693L
GPS/GNSS Low-Noise Amplifiers
with Integrated LDO
AC ELECTRICAL CHARACTERISTICS (continued)
(MAX2686L/MAX2693L EV kit, V
= 1.6V to 4.2V, T = -40°C to +85°C, f
= 1575.42MHz. Typical values are at V = 3.3V and
CC
CC
A
RFIN
T
= +25°C, unless otherwise noted.) (Note 2)
A
PARAMETER
CONDITIONS
MIN
TYP
22.0
14.3
41.0
40.0
MAX
UNITS
MAX2686L
MAX2693L
MAX2686L
MAX2693L
Output Return Loss
Reverse Isolation
dB
dB
Note 2: Min and max limits guaranteed by test at T = +25°C and guaranteed by design and characterization at T = -40°C and
A
A
T
= +85°C, unless otherwise noted.
A
Note 3: Min and max limits guaranteed by test at T = +25°C.
A
Note 4: Min limit guaranteed by design and characterization.
Note 5: Measured with the two tones located at 1MHz and 2MHz offset from the center of the GPS band with -30dBm/tone.
Note 6: Measured with input tones at 1713MHz (-27dBm) and 1851MHz (-39dBm).
Note 7: Measured with a tone located at the center of the GPS band.
Typical Operating Characteristics
(MAX2686L/MAX2693L EV kit. Typical values are at V
= 3.3V, T = +25°C, and f
= 1575.42MHz, unless otherwise noted.)
RFIN
CC
A
MAX2686L
MAX2686L INPUT RETURN LOSS
vs. FREQUENCY
MAX2686L
GAIN vs. FREQUENCY
MAX2686L REVERSE ISOLATION
vs. FREQUENCY
0
-10
-20
-30
20
15
10
5
-30
1.6V
3.2V
4.2V
+25°C
+25°C
V
= 1.6V
CC
V
= 3.2V
CC
-40
V
= 3.2V
CC
V
= 4.2V
CC
V
= 4.2V
CC
-50
-60
-70
V
= 1.6V
CC
0
500
1000
1500
FREQUENCY (MHz)
2000
2500
500
1000
1500
FREQUENCY (MHz)
2000
2500
500
1000
1500
2000
2500
FREQUENCY (MHz)
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3
MAX2686L/MAX2693L
GPS/GNSS Low-Noise Amplifiers
with Integrated LDO
Typical Operating Characteristics (continued)
(MAX2686L/MAX2693L EV kit. Typical values are at V
= 2.85V, T = +25°C, and f
= 1575.42MHz, unless otherwise noted.)
RFIN
CC
A
MAX2686L
MAX2686L OUT-OF-BAND IIP3
vs. SUPPLY VOLTAGE AND TEMPERATURE
(TONE 1 AT 1713MHz, -27dBm;
TONE 2 AT 1851MHz, -39dBm)
3
MAX2686L IN-BAND IIP3 vs. SUPPLY VOLTAGE
AND TEMPERATURE (TWO TONES LOCATED AT
1MHz AND 2MHz OFFSET WITH -30dBm/TONE)
-3
MAX2686L OUTPUT RETURN LOSS
vs. FREQUENCY
0
-5
-40°C
+25°C
-40°C
+25°C
-4
1
+25°C
-10
-15
-20
-25
V
= 3.2V
= 4.2V
CC
V
= 1.6V
CC
+85°C
V
CC
-5
-1
+85°C
-6
-3
500
1000
1500
FREQUENCY (MHz)
2000
2500
1.6
2.1
2.6
3.1
3.6
4.1
1.6
2.0
2.4
2.8
3.2
3.6
4.0
SUPPLY VOLTAGE (V)
SUPPLY VOLTAGE (V)
MAX2686L INPUT P1dB COMPRESSION
vs. SUPPLY VOLTAGE AND TEMPERATURE
MAX2686L NOISE FIGURE vs. SUPPLY
VOLTAGE AND TEMPERATURE
-9
-11
-13
-15
1.6
1.2
0.8
0.4
+85°C
+25°C
-40°C
+25°C
+85°C
-40°C
2.2
2.6
3.0
3.4
3.8
4.2
1.6
2.0
2.4
2.8
3.2
3.6
4.0
SUPPLY VOLTAGE (V)
SUPPLY VOLTAGE (V)
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4
MAX2686L/MAX2693L
GPS/GNSS Low-Noise Amplifiers
with Integrated LDO
Typical Operating Characteristics (continued)
(MAX2686L/MAX2693L EV kit. Typical values are at V
= 2.85V, T = +25°C, and f
A
= 1575.42MHz, unless otherwise noted.)
CC
RFIN
MAX2693L
MAX2693L INPUT RETURN LOSS
MAX2693L GAIN vs. FRQUENCY
vs. FREQUENCY
0
20
10
0
+25°C
+25°C
V
= 1.6V
CC
-4
V
= 1.6V
CC
V
= 3.2V
CC
-8
-12
-16
V
= 4.2V
CC
V
= 3.2V
CC
V
= 4.2V
CC
-10
500
1000
1500
2000
2500
500
1000
1500
FREQUENCY (MHz)
2000
2500
FREQUENCY (MHz)
MAX2693L REVERSE ISOLATION
vs. FREQUENCY
MAX2693L OUTPUT RETURN LOSS
vs. FREQUENCY
-30
-40
-50
-60
-70
0
-4
1.6V
3.2V
4.2V
+25°C
-8
V
= 3.2V
= 4.2V
CC
V
V
= 1.6V
CC
CC
-12
-16
500
1000
1500
2000
2500
500
1000
1500
2000
2500
FREQUENCY (MHz)
FREQUENCY (MHz)
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5
MAX2686L/MAX2693L
GPS/GNSS Low-Noise Amplifiers
with Integrated LDO
Typical Operating Characteristics (continued)
(MAX2686L/MAX2693L EV kit. Typical values are at V
= 2.85V, T = +25°C, and f
= 1575.42MHz, unless otherwise noted.)
RFIN
CC
A
MAX2693L
MAX2693L OUT-OF-BAND IIP3
vs. SUPPLY VOLTAGE AND TEMPERATURE
(TONE 1 AT 1713MHz, -27dBm;
MAX2693L IN-BAND IIP3 vs. SUPPLY
VOLTAGE AND TEMPERATURE
(TWO TONES LOCATED AT 1MHz AND
2MHz OFFSET WITH -30dBm/TONE)
-15
TONE 2 AT 1851MHz, -39dBm)
-13
+85°C
+85°C
-16
-14
-15
+25°C
+25°C
-40°C
-40°C
-17
1.6
2.1
2.6
3.1
3.6
4.1
1.6
2.0
2.4
2.8
3.2
3.6
4.0
SUPPLY VOLTAGE (V)
SUPPLY VOLTAGE (V)
MAX2693L INPUT P1dB COMPRESSION
vs. SUPPLY VOLTAGE AND TEMPERATURE
MAX2693L NOISE FIGURE
vs. SUPPLY VOLTAGE AND TEMPERATURE
-10
-12
-14
-16
-18
1.6
1.2
0.8
0.4
+85°C
+85°C
+25°C
-40°C
+25°C
-40°C
1.6
2.0
2.4
2.8
3.2
3.6
4.0
1.6
2.0
2.4
2.8
3.2
3.6
4.0
SUPPLY VOLTAGE (V)
SUPPLY VOLTAGE (V)
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6
MAX2686L/MAX2693L
GPS/GNSS Low-Noise Amplifiers
with Integrated LDO
Bump Configuration
TOP VIEW
+
V
RFOUT (SHDN)
GND
A1
B1
A2
B2
CC
MAX2686L
MAX2693L
RFIN
WLP
Bump Description
BUMP
NAME
FUNCTION
A1
V
Supply Voltage. Bypass to ground with a 10pF capacitor as close as possible to the IC.
CC
RF Output/SHDN Input. RFOUT is internally matched to 50I and pulled up to V through a 1MI
CC
RFOUT
resistor. SHDN is shared with the RFOUT bump. The devices are in active mode by default once
A2
(SHDN)
V
is applied. RFOUT(SHDN) can be pulled to a DC low through a 25kI resistor to shut down
CC
the IC.
B1
B2
RFIN
GND
RF Input. Requires a DC-blocking capacitor and external matching components.
Ground. Connect to the PCB ground plane.
The value of the input coupling capacitor affects IIP3.
Detailed Description
A smaller coupling capacitor results in lower IIP3. The
devices integrate an on-chip output matching to 50I at
the output, eliminating the need for external matching
components. Table 1 and Table 2 list typical device S
The MAX2686L/MAX2693L are LNAs designed for GPS
L1, Galileo, and GLONASS applications. The devices fea-
ture an optional power-shutdown control mode to elimi-
nate the need for an external supply switch. The devices
achieve high gain and low noise figure in an ultra-small
package ideal for space-sensitive applications. These
integrated ICs eliminate the need for an external LDO.
parameters and K values. Typical noise parameters are
f
shown in Table 3 and Table 4.
Shutdown
The devices include an optional shutdown feature to turn
off the entire chip. The devices are placed in active mode
Input and Output Matching
The devices require an off-chip input matching. Only an
inductor in series with a DC-blocking capacitor is needed
to form the input matching circuit. The Typical Operating
Circuit shows the recommended input-matching net-
work. These values are optimized for the best simulta-
neous gain, noise figure, and return loss performance.
by default once V
is applied, due to the on-chip pul-
CC
lup resistor to V
at the RFOUT bump (shared with the
CC
SHDN input). To shut down the part, apply a logic-low
to the RFOUT bump through an external resistor with an
adequate value, e.g., 25kI, in order not to load the RF
output signal during active operation.
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7
MAX2686L/MAX2693L
GPS/GNSS Low-Noise Amplifiers
with Integrated LDO
Table 1. MAX2686L Typical S Parameter Values and K-Factor
S11
PHASE
(DEGREES)
S21
PHASE
(DEGREES)
S12
PHASE
(DEGREES)
S22
PHASE
(DEGREES)
FREQ
(MHz)
S11 MAG
(dB)
S21 MAG
(dB)
S12 MAG
(dB)
S22 MAG
(dB)
K
f
1000
1100
1200
1300
1400
1500
1575
1600
1700
1800
1900
2000
-2.7
-2.9
-3.2
-3.4
-3.5
-3.3
-3.5
-3.7
-3.6
-3.5
-3.7
-4.0
-88.3
-95.0
7.9
162.0
150.5
136.9
122.2
104.8
85.4
-56.7
-48.5
-45.5
-49.2
-47.4
-50.7
-44.6
-43.4
-49.8
-51.0
-41.9
-41.8
101.9
57.5
64.8
51.0
1.8
-1.9
-2.4
-153.8
-169.9
172.8
153.8
132.5
102.3
46.7
16.1
9.8
7.4
6.6
6.9
7.8
5.9
5.1
6.5
4.0
2.2
2.0
9.6
-101.7
-107.4
-113.3
-120.2
-125.7
-126.8
-131.1
-139.0
-146.3
-152.0
11.2
12.8
14.4
16.0
16.8
16.8
16.5
16.1
15.2
13.8
-3.1
-4.4
-6.8
19.3
29.9
15.5
-7.5
-11.9
-26.0
-24.3
-10.1
-5.4
66.9
58.4
-79.5
34.7
-125.4
-148.1
-169.7
170.5
12.9
39.5
7.5
-7.7
-3.0
-24.4
-10.7
-1.9
Table 2. MAX2693L Typical S Parameter Values and K-Factor
S11
PHASE
(DEGREES)
S21
PHASE
(DEGREES)
S12
PHASE
(DEGREES)
S22
PHASE
(DEGREES)
FREQ
(MHz)
S11 MAG
(dB)
S21 MAG
(dB)
S12 MAG
(dB)
S22 MAG
(dB)
K
f
1000
1100
1200
1300
1400
1500
1575
1600
1700
1800
1900
2000
-1.0
-1.1
-1.2
-1.3
-1.5
-1.6
-1.6
-1.7
-1.9
-1.8
-2.0
-2.1
-77.4
-84.8
-2.5
0.1
-148.6
-159.7
-172.2
171.7
152.1
124.7
99.5
-55.5
-51.0
-48.0
-46.4
-45.9
-46.3
-44.0
-42.4
-45.3
-43.6
-40.1
-39.6
78.6
85.5
70.0
56.0
35.6
22.2
38.3
22.2
-9.5
-0.9
-1.2
-1.6
-2.3
-3.8
-8.0
-14.8
-14.9
-6.5
-3.3
-2.0
-1.5
-138.2
-154.2
-172.0
167.2
140.1
96.8
16.1
9.8
7.4
6.6
6.9
7.8
5.9
5.1
6.5
4.0
2.2
2.0
-92.5
2.7
-99.4
5.6
-106.5
-113.2
-118.5
-120.6
-126.6
-133.6
-140.7
-146.9
8.4
11.0
12.2
12.3
11.5
10.0
8.4
23.5
88.4
-33.4
55.8
-117.5
-152.3
-176.5
164.9
30.2
12.4
-8.1
10.0
6.9
-4.9
-29.9
Table 3. MAX2686L Simulated Typical Noise Parameters (V
= 3.3V, T = +25°C)
A
CC
FREQUENCY (MHz)
FMIN (dB)
0.70
R (I)
N
|G
|
|G
| ANGLE
OPT
OPT
1550
1560
1570
1580
1590
1600
0.43
0.43
0.42
0.42
0.42
0.42
45
45
45
45
46
46
8.45
8.43
8.42
8.41
8.39
8.38
0.70
0.70
0.70
0.70
0.71
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8
MAX2686L/MAX2693L
GPS/GNSS Low-Noise Amplifiers
with Integrated LDO
Table 4. MAX2693L Simulated Typical Noise Parameters (V
= 3.3V, T = +25NC)
A
CC
FREQUENCY (MHz)
FMIN (dB)
0.88
R (I)
N
|G
|
|G
| ANGLE
OPT
OPT
1550
1560
1570
1580
1590
1600
0.69
0.69
0.68
0.68
0.68
0.68
32
32
32
32
32
33
24.27
24.22
24.17
24.12
24.07
24.03
0.88
0.88
0.88
0.88
0.88
Applications Information
Ordering Information
A properly designed PCB is essential to any RF micro-
wave circuit. Use controlled-impedance lines on all
PART
TEMP RANGE
PIN-PACKAGE
4 WLP
MAX2686LEWS+T
MAX2693LEWS+T
-40NC to +85NC
-40NC to +85NC
high-frequency inputs and outputs. Bypass V
with
CC
4 WLP
decoupling capacitors located close to the device. For
long V lines, it may be necessary to add decoupling
+Denotes a lead(Pb)-free/RoHS-compliant package.
T = Tape and reel
CC
capacitors. Locate these additional capacitors further
away from the device package. Proper grounding of the
GND bump is essential. If the PCB uses a topside RF
ground, connect it directly to the GND bump. For a board
where the ground is not on the component layer, connect
the GND bump to the board with multiple vias close to
the package. For general layout guidelines, refer to
www.maxim-ic.com/app-notes/index.mvp/id/5100.
Chip Information
PROCESS: SiGe BiCMOS
Package Information
For the latest package outline information and land patterns
(footprints), 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.
Refer to www.maxim-ic.com/datasheet/index.mvp/id/6934/t/do
for the MAX2686L /MAX2693L EV kit schematic, Gerber
data, PADS layout file, and BOM information.
PACKAGE PACKAGE
OUTLINE
NO.
LAND
PATTERN NO.
TYPE
CODE
Refer to
Application
Note 1891
4 WLP
W40A0+1
21-0480
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9
MAX2686L/MAX2693L
GPS/GNSS Low-Noise Amplifiers
with Integrated LDO
Revision History
REVISION REVISION
PAGES
CHANGED
DESCRIPTION
NUMBER
DATE
0
3/12
Initial release
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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. 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 Products, 120 San Gabriel Drive, Sunnyvale, CA 94086 408-737-7600
10
©
2012 Maxim Integrated Products
Maxim is a registered trademark of Maxim Integrated Products, Inc.
相关型号：
MAX2695EWS+T
Wide Band Low Power Amplifier, 1 Func, BICMOS, 0.86 X 0.86 MM, 0.65 MM HEIGHT, ROHS COMPLIANT, WLP, 4 PIN
MAXIM
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