MAXIM MAX2358ETI

19-2487; Rev 3; 1/04
Quadruple-Mode PCS/Cellular/GPS LNA/Mixers
The MAX2351/MAX2354/MAX2358/MAX2359/MAX2530/
MAX2531/MAX2537/MAX2538 family of single- and multiband LNA/mixer ICs is optimized for CDMA, GSM, and
TDMA applications in both cellular and PCS bands. In
addition, the MAX2530/MAX2531/MAX2537/MAX2538 ICs
feature a GPS LNA/mixer signal path for E911 and traveler
assistance applications. The cellular and PCS signals can
be routed to either IF port. For example, one IF port can be
connected to an IF filter with 30kHz bandwidth, while the
other port can drive an IF filter with a wider bandwidth. The
GPS band has its own IF port.
To optimize dynamic range at minimum current, the
MAX2351/MAX2354/MAX2358/MAX2359/MAX2530/
MAX2531/MAX2537/MAX2538 implement multiple LNA
and mixer states, including high gain/high linearity, high
gain/low linearity, midgain, low gain, and ultra-low gain. In
high-gain/high-linearity mode, the high-IP3 LNA minimizes desensitization in the presence of a large interfering signal. For the other gain states, the LNA current is
reduced to improve standby time. Each band is implemented with a separate mixer to optimize performance for
the specific band, and each mixer provides multiple linearity modes to optimize linearity and current consumption. The ultra-low gain mode operates with very little
current, which results in significant power savings
because the handset typically spends most of its time in
this mode.
Features
♦ Eliminate Up to 35 External Components
♦ Low LNA Noise Figure
PCS: 1.2dB
Cellular: 0.9dB
GPS: 1.0dB
♦ No External GPS VCO Required
♦ No Interstage GPS SAW Filter Required
♦ Triple Band, Quadruple Mode
♦ Ultra-Low Current: <10mA Average in CDMA
Phones
♦ Small 28-Pin QFN Package (5mm ✕ 5mm)
Ordering Information
TEMP RANGE
PIN-PACKAGE
MAX2351ETI
PART
-40°C to +85°C
28 Thin QFN-EP*
MAX2354ETI
-40°C to +85°C
28 Thin QFN-EP*
MAX2358ETI
-40°C to +85°C
28 Thin QFN-EP*
MAX2359ETI
-40°C to +85°C
28 Thin QFN-EP*
MAX2530ETI
-40°C to +85°C
28 Thin QFN-EP*
MAX2531ETI
-40°C to +85°C
28 Thin QFN-EP*
MAX2537ETI
-40°C to +85°C
28 Thin QFN-EP*
MAX2538ETI
-40°C to +85°C
*EP = exposed pad.
28 Thin QFN-EP*
Applications
Pin Configurations
Triple-Band, Quadruple-Mode PCS/Cellular Handsets
BAND
IF_SEL
PMIX_IN
CMIX_IN
IF1-
IF1+
GSM/TDMA Cellular Phones
28
27
26
25
24
23
22
2
Input
Internal doubler
MAX2351
✓
✓
—
GND
3
MAX2354
✓
—
—
Input
—
MAX2358
✓
✓
—
Internal divider
Input
CLNA_IN
4
MAX2359
—
✓
—
—
Input
SHDN
5
MAX2530
✓
✓
✓
Input
Input
MAX2531
✓
✓
✓
Input
Internal doubler
GLNA_IN
6
MAX2537
✓
—
✓
Internal divider
Input
G1
7
MAX2538
✓
✓
✓
Internal divider
Input
MAX2538
÷2
÷1.5
8
9
10
11
12
13
14
LO_IN
PLNA_IN
PLL
PCS VCO
BIAS
CELL VCO
MODE
CELL PCS GPS
GMIX_IN
PART
G2
1
GLNA_OUT
CLNA_OUT
Selector Guide
IF OUTPUT MUX
E911 and Traveler Assistance Through GPS
PLNA_OUT
Single-Band Handsets
21
GIF-
20
GIF+
19
IFO-
18
IFO+
17
VCC
16
LO_OUT
15
BUFFEN
Pin Configurations continued at end of data sheet.
________________________________________________________________ Maxim Integrated Products
For pricing, delivery, and ordering information, please contact Maxim/Dallas Direct! at
1-888-629-4642, or visit Maxim’s website at www.maxim-ic.com.
1
MAX2351/4/8/9/MAX2530/1/7/8
General Description
MAX2351/4/8/9/MAX2530/1/7/8
Quadruple-Mode PCS/Cellular/GPS LNA/Mixers
ABSOLUTE MAXIMUM RATINGS
VCC to GND ...........................................................-0.3V to +4.3V
Digital Input Voltage to GND ......................-0.3V to (VCC + 0.3V)
LNA Input (Low-Gain Mode) Level ...................................15dBm
LO Input Level ....................................................................5dBm
Digital Input Current............................................................10mA
Continuous Power Dissipation (TA = +70°C)
28-Pin QFN-EP (derate 21mW/°C
above +70°C)...................................................................1.6W
Operating Temperature Range ...........................-40°C to +85°C
Junction Temperature ......................................................+150°C
Storage Temperature Range .............................-65°C to +150°C
Lead Temperature (soldering 10s) ..................................+300°C
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
(VCC = 2.7V to 3.3V, RBIAS = 20kΩ, TA = -40°C to +85°C. Typical values are at VCC = 2.75V and TA = +25°C, unless otherwise
noted.) (Note 1)
PARAMETER
CONDITIONS
MIN
TYP
MAX
MAX2358/MAX2359/MAX2530/MAX2538
7.4
9.0
MAX2351/MAX2531
8.1
10
UNITS
PCS MODE (see Table 1 for abbreviations)
ULG
Operating Supply Current
LG
HGHL
MAX2358/MAX2359/MAX2530/MAX2538
8.6
11
MAX2351/MAX2531
9.3
11.5
MAX2358/MAX2359/MAX2530/MAX2538
26.5
32
MAX2351/MAX2531
27.2
33
6.5
8.5
MAX2358/MAX2537/MAX2538
7.7
9.5
MAX2351/MAX2354/MAX2530/MAX2531
13.9
17
mA
CELLULAR MODE (see Table 1 for abbreviations)
ULG
LG
Operating Supply Current
MG
HGLL
HGHL
MAX2351/MAX2354/MAX2530/MAX2531
MAX2358/MAX2537/MAX2538
15.1
18.5
MAX2354/MAX2530
23.5
28
MAX2351/MAX2531
21.5
26
MAX2358/MAX2537/MAX2538
24.7
29.5
MAX2351/MAX2354/MAX2530/MAX2531
20.6
26
MAX2358/MAX2537/MAX2538
21.8
27.5
MAX2354/MAX2530
27.7
35
MAX2351/MAX2531
25.7
33.5
MAX2358/MAX2537/MAX2538
28.9
36
MAX2530/MAX2537/MAX2538
18.9
23
MAX2531
19.6
24
mA
GPS MODE (MAX2530/MAX2531/MAX2538)
Operating Supply Current
PLL =
low
mA
SHUTDOWN MODE
Shutdown Supply Current
SHDN = low, BUFFEN = PLL = low
20
µA
ALL MODES
Digital Input Logic High
1.8
Digital Input Logic Low
2
_______________________________________________________________________________________
V
0.6
V
Quadruple-Mode PCS/Cellular/GPS LNA/Mixers
(VCC = 2.7V to 3.3V, RBIAS = 20kΩ, TA = -40°C to +85°C. Typical values are at VCC = 2.75V and TA = +25°C, unless otherwise
noted.) (Note 1)
PARAMETER
CONDITIONS
Digital Input Current
Measured at guaranteed logic threshold
Additional Current for LO_OUT
Buffer
BUFFEN = high, cellular and PCS modes, PLO = -7dBm
Buffer-Only
Mode Supply
Mode
PLL-Only Mode
MIN
TYP
MAX
UNITS
+10
µA
2.4
3.5
mA
5.4
7
6.1
7.5
4.7
6.5
5.9
7.5
3.2
4.5
-10
PCS MAX2358/MAX2359/MAX2530/MAX2538
SHDN = low,
PCS MAX2351/MAX2531
BUFFEN = high,
CELL MAX2351/MAX2354/MAX2530/MAX2531
PLO = -7dBm
CELL MAX2358/MAX2537/MAX2538
SHDN = low,
PLL = high,
PLO = -7dBm
mA
mA
AC ELECTRICAL CHARACTERISTICS
(EV kits to evaluate the MAX2351/MAX2354/MAX2358/MAX2359/MAX2530/MAX2531/MAX2357/MAX2538, fCELL = 869MHz to
894MHz, fPCS = 1930MHz to 1990MHz, fGPS = 1575.42MHz (MAX2530/MAX2531/MAX2537/MAX2538), fIF = 183.6MHz, high-side
LO for all except GPS, 50Ω system impedance, VCC = 2.7V to 3.3V, RBIAS = 20kΩ, RIF0 = RIF1 = 3.3kΩ, RGIF = 8.2kΩ, LO input
power = -10dBm, TA = -40°C to +85°C. Typical values are at fCELL = 881MHz, fPCS = 1960MHz, VCC = 2.75V, LO input power = 7dBm, unless otherwise noted.) (Note 2)
PARAMETER
CONDITIONS
MIN
TYP
MAX
UNITS
OVERALL PERFORMANCE
IF Frequency Range
IF0 and IF1 (Note 3)
70
183.6
400
MHz
GPS IF Frequency Range
GIF (Note 3)
110
183.6
225
MHz
Cellular RF Frequency Range
(Note 1)
869
894
MHz
PCS RF Frequency Range
(Note 1)
1930
1990
MHz
-40
dBm
LO Leakage to LNA inputs
Cell, BUFFEN = high, 50Ω load, LO input power =
-10dBm (Note 1)
-10
-5
LO Output Power
dBm
PCS, BUFFEN = high, 50Ω load, LO input power =
-10dBm (Note 1)
PLL Output Power
-11
-7
-12
dBm
LNA PERFORMANCE (see Table 1 for abbreviations)
HGHL
HGLL
LNA Gain
(Note 1)
CELL
MG
LG/ULG
TA = +25°C
13.8
TA = -40°C to +85°C
13.3
TA = +25°C
13.5
TA = -40°C to +85°C
13.0
TA = +25°C
1.0
TA = -40°C to +85°C
0.5
TA = +25°C
TA = -40°C to +85°C
-6
-6.5
15
16.0
16.5
14.5
15.5
16.0
1.9
3.0
dB
3.0
-4.9
-4
-3.5
_______________________________________________________________________________________
3
MAX2351/4/8/9/MAX2530/1/7/8
DC ELECTRICAL CHARACTERISTICS (continued)
MAX2351/4/8/9/MAX2530/1/7/8
Quadruple-Mode PCS/Cellular/GPS LNA/Mixers
AC ELECTRICAL CHARACTERISTICS (continued)
(EV kits to evaluate the MAX2351/MAX2354/MAX2358/MAX2359/MAX2530/MAX2531/MAX2357/MAX2538, fCELL = 869MHz to
894MHz, fPCS = 1930MHz to 1990MHz, fGPS = 1575.42MHz (MAX2530/MAX2531/MAX2537/MAX2538), fIF = 183.6MHz, high-side
LO for all except GPS, 50Ω system impedance, VCC = 2.7V to 3.3V, RBIAS = 20kΩ, RIF0 = RIF1 = 3.3kΩ, RGIF = 8.2kΩ, LO input
power = -10dBm, TA = -40°C to +85°C. Typical values are at fCELL = 881MHz, fPCS = 1960MHz, VCC = 2.75V, LO input power = 7dBm, unless otherwise noted.) (Note 2)
PARAMETER
CONDITIONS
HGHL
PCS
LNA Gain
(Note 1)
-3.2
-3.2
TA = +25°C
16
17.7
19
TA = +25°C
0.9
1.2
Change over temperature from
TA = +25°C to +85°C
0.2
MG
TA = +25°C
2.0
2.5
LG/ULG
TA = +25°C
5.0
6.5
TA = +25°C
1.2
1.5
HGHL
Change over temperature from
TA = +25°C to +85°C
0.2
LG/ULG
TA = +25°C
5.5
7.0
TA = +25°C
1.0
1.3
Change over temperature from
TA = +25°C to +85°C
0.2
TA = -40°C to +85°C
4
15.5
PIN = -25dBm, TA = -40°C to +85°C
(Note 1)
9.5
13
HGLL
PIN = -25dBm, TA = -40°C to +85°C
6.5
12.2
MG
PIN = -25dBm, TA = -40°C to +85°C
13.5
17
LG/ULG
PIN = -15dBm, TA = -40°C to +85°C
20
24.6
HGHL
PIN = -25dBm, TA = -40°C to +85°C
(Note 1)
8
12
20
24.4
0
4.6
PIN = -15dBm, TA = -40°C to +85°C
PIN = -25dBm, TA = -40°C to +85°C
dB
20
HGHL
LG/ULG
GPS
17
-4.5
GPS
PCS
TA = +25°C
UNITS
17.5
-4.5
CELL
LNA IP3
(Note 4)
16
14.5
-6
HGHL/
HGLL
CELL
15
TA = -40°C to +85°C
MAX
-5.5
GPS
PCS
TYP
TA = -40°C to +85°C
LG/ULG
LNA Noise Figure
TA = +25°C
MIN
_______________________________________________________________________________________
dB
dBm
Quadruple-Mode PCS/Cellular/GPS LNA/Mixers
(EV kits to evaluate the MAX2351/MAX2354/MAX2358/MAX2359/MAX2530/MAX2531/MAX2357/MAX2538, fCELL = 869MHz to
894MHz, fPCS = 1930MHz to 1990MHz, fGPS = 1575.42MHz (MAX2530/MAX2531/MAX2537/MAX2538), fIF = 183.6MHz, high-side
LO for all except GPS, 50Ω system impedance, VCC = 2.7V to 3.3V, RBIAS = 20kΩ, RIF0 = RIF1 = 3.3kΩ, RGIF = 8.2kΩ, LO input
power = -10dBm, TA = -40°C to +85°C. Typical values are at fCELL = 881MHz, fPCS = 1960MHz, VCC = 2.75V, LO input power = 7dBm, unless otherwise noted.) (Note 2)
PARAMETER
CONDITIONS
MIN
TYP
MAX
9.5
8.5
9.0
8
6
5
10.0
8.5
8.0
6.5
7.5
6.0
12.0
10
12.5
15.0
16
14.5
15.5
12.5
14
16.5
16.5
14.5
14.5
13.5
14.5
17.5
19
9.5
UNITS
MIXER PERFORMANCE (see Tables 1 and 2 for abbreviations)
HGHL/
MG
CELL
HGLL/
LG
ULG
Mixer Gain
(Note 1)
HGHL
PCS
LG
ULG
GPS
HGHL/
MG
CELL
Mixer Noise
Figure
12
10
13
12
12
11
15
13
8
Change over temperature from
TA = +25°C to +85°C
0.3
TA = +25°C
7.2
9
ULG
TA = +25°C
TA = +25°C
7
7
9
8.5
HGHL
Change over temperature from
TA = +25°C to +85°C
0.3
LG
ULG
TA = +25°C
TA = +25°C
TA = +25°C
6.2
6
7.2
Change over temperature from
TA = +25°C to +85°C
0.5
HGLL/
LG
PCS
GPS
TA = +25°C
TA = -40°C to +85°C
TA = +25°C
TA = -40°C to +85°C
TA = +25°C
TA = -40°C to +85°C
TA = +25°C
TA = -40°C to +85°C
TA = +25°C
TA = -40°C to +85°C
TA = +25°C
TA = -40°C to +85°C
TA = +25°C
TA = -40°C to +85°C
TA = +25°C
dB
dB
7.5
7.5
9
_______________________________________________________________________________________
5
MAX2351/4/8/9/MAX2530/1/7/8
AC ELECTRICAL CHARACTERISTICS (continued)
AC ELECTRICAL CHARACTERISTICS (continued)
(EV kits to evaluate the MAX2351/MAX2354/MAX2358/MAX2359/MAX2530/MAX2531/MAX2357/MAX2538, fCELL = 869MHz to
894MHz, fPCS = 1930MHz to 1990MHz, fGPS = 1575.42MHz (MAX2530/MAX2531/MAX2537/MAX2538), fIF = 183.6MHz, high-side
LO for all except GPS, 50Ω system impedance, VCC = 2.7V to 3.3V, RBIAS = 20kΩ, RIF0 = RIF1 = 3.3kΩ, RGIF = 8.2kΩ, LO input
power = -10dBm, TA = -40°C to +85°C. Typical values are at fCELL = 881MHz, fPCS = 1960MHz, VCC = 2.75V, LO input power = 7dBm, unless otherwise noted.) (Note 2)
PARAMETER
CONDITIONS
HGHL/
MG
CELL
HGLL/
LG
ULG
Mixer IP3
(Note 4)
MIN
TYP
MAX2354/MAX2358/MAX2530/
MAX2537/MAX2538,
PIN = -20dBm (Note 1)
6
7.8
MAX2351/MAX2531, PIN = -20dBm
4
6.5
PIN = -20dBm
3.5
6.5
PIN = -20dBm
-4.5
-2.2
3
5
2.5
-4.5
-7
-3
4.5
-1.8
-3.6
0.5
MAX2358/MAX2359/
PIN = -20dBm
MAX2530/MAX2538
(Note 1)
MAX2351/MAX2531
PIN = -20dBm
PIN = -20dBm
PIN = -20dBm
HGHL
PCS
LG
ULG
GPS
MAX
UNITS
dBm
Guaranteed at TA = +25°C and TA = +85°C by production test, and guaranteed by design and characterization at TA = -40°C.
Minimum and maximum specs are guaranteed by design and characterization, unless otherwise noted.
Operating over this frequency range requires the ports to be rematched for the desired operating frequency.
Two-tone separation is 900kHz cellular, 1.25MHz for PCS, and 1MHz for GPS.
Note 1:
Note 2:
Note 3:
Note 4:
Typical Operating Characteristics
(MAX2538 EV kit, fIF = 183.6MHz, high-side LO for all modes except GPS, 50Ω system impedance, RBIAS = 20kΩ, RIF0 = RIF1 =
3.3kΩ, RGIF = 8.2kΩ, fCELL = 881MHz, fPCS = 1960MHz, fGPS = 1575.42MHz, VCC = 2.75V, LO input power = -7dBm, HGHL mode,
TA = +25°C, unless otherwise noted.)
SUPPLY CURRENT vs. BIAS RESISTANCE
26
PCS
2.75V, 3.0V, 3.3V
22
20
30
CELL
PCS
20
GPS
10
MAX2351 toc03
PCS LOW-SIDE LO
12
10
CELL
8
GPS
6
PCS
18
GPS
0
16
-40
-15
10
35
TEMPERATURE (°C)
6
40
SUPPLY CURRENT (mA)
28
MIXER NOISE FIGURE vs. LO POWER
14
MAX2351 toc02
MAX2351 toc01
CELL
30
24
50
MIXER NOISE FIGURE (dB)
SUPPLY CURRENT vs. TEMPERATURE
32
SUPPLY CURRENT (mA)
MAX2351/4/8/9/MAX2530/1/7/8
Quadruple-Mode PCS/Cellular/GPS LNA/Mixers
60
85
4
0
10
20
30
BIAS RESISTANCE (kΩ)
40
50
-10
-8
-6
-4
LO POWER (dBm)
_______________________________________________________________________________________
-2
0
Quadruple-Mode PCS/Cellular/GPS LNA/Mixers
CELL
8
GPS
16
CELL
PCS
MIXER GAIN (dB)
MIXER IIP3 (dBm)
12
6
4
PCS LOW-SIDE LO
2
12
CELL
8
GPS
10
4
0
0
-2
-8
-6
-4
-10
0
-2
-8
-4
-2
10
6
PCS
2
1.4
LNA NOISE FIGURE (dB)
CELL
GPS
PCS
1.2
GPS
1.0
0.8
0.6
25
30
35
30
40
35
LNA GAIN vs. SUPPLY CURRENT
GPS
18
16
PCS
14
CELL
10
CELL
8
10
40
15
20
25
30
35
40
SUPPLY CURRENT (mA)
SUPPLY CURRENT (mA)
10
15
20
25
30
35
40
SUPPLY CURRENT (mA)
LNA IIP3 vs. SUPPLY CURRENT
20
LNA IIP3 (dB)
15
MAX2351 toc10
20
25
12
-6
-10
20
20
MAX2351 toc08
1.6
MAX2351 toc07
14
15
15
SUPPLY CURRENT (mA)
LNA NOISE FIGURE vs. SUPPLY CURRENT
MIXER IIP3 vs. SUPPLY CURRENT
18
10
10
0
LO POWER INPUT (dBm)
LO INPUT POWER (dBm)
-2
-6
LNA GAIN (dB)
-10
MAX2351 toc09
8
MIXER IIP3 (dBm)
PCS
PCS
PCS LOW-SIDE LO
MAX2351 toc06
GPS
20
MAX2351 toc05
MAX2351 toc04
10
14
MIXER GAIN (dB)
MIXER GAIN vs. SUPPLY CURRENT
MIXER IIP3 vs. LO POWER
MIXER GAIN vs. LO POWER
16
CELL
10
5
PCS
0
GPS
-5
-10
10
15
20
25
30
35
40
SUPPLY CURRENT (mA)
_______________________________________________________________________________________
7
MAX2351/4/8/9/MAX2530/1/7/8
Typical Operating Characteristics (continued)
(MAX2538 EV kit, fIF = 183.6MHz, high-side LO for all modes except GPS, 50Ω system impedance, RBIAS = 20kΩ, RIF0 = RIF1 =
3.3kΩ, RGIF = 8.2kΩ, fCELL = 881MHz, fPCS = 1960MHz, fGPS = 1575.42MHz, VCC = 2.75V, LO input power = -7dBm, HGHL mode,
TA = +25°C, unless otherwise noted.)
MAX2351/4/8/9/MAX2530/1/7/8
Quadruple-Mode PCS/Cellular/GPS LNA/Mixers
Pin Description
PIN
MAX2530
MAX2351
MAX2354 MAX2359 MAX2531 MAX2537
MAX2358
MAX2538
NAME
FUNCTION
Cellular LNA Output. Internally matched to 50Ω including an
on-chip DC-blocking capacitor.
1
1
—
1
1
CLNA_OUT
2
—
2
2
—
PLNA_IN
3
3, 27
3
3
3
GND
4
4
—
4
4
CLNA_IN
Cellular LNA Input. Requires a DC-blocking capacitor that can
be used as part of the matching network.
5
5
5
5
5
SHDN
Shutdown Logic Input. A logic low shuts off the device, except
LO_OUT and PLL buffers, which are controlled by BUFFEN
and PLL pins, respectively.
6, 8
2, 6, 8
1, 4, 6, 8,
24
—
2
N.C./GND
Pin can be grounded or left open-circuit.
—
—
—
6
6
GLNA_IN
GPS LNA Input. Requires a DC-blocking capacitor, which can
be used as part of the matching network.
7
7
7
7
7
G1
Operating Mode Logic Input. Sets device operating modes.
See Table 2 for details.
—
—
—
8
8
GLNA_OUT
GPS LNA Output. Internally matched to 50Ω including an onchip DC-blocking capacitor.
9
9
9
9
9
G2
Operating Mode Logic Input. Sets device operating modes.
See Table 2 for details.
10, 20, 21
10, 20,
21, 25, 28
10, 20,
21, 27
—
25, 28
I.C.
Internally Connected. Do not make connections to this pin.
—
—
—
10
10
GMIX_IN
GPS Mixer Input. Requires a DC-blocking capacitor, which
can be used as an interstage coupling capacitor.
11
11
11
11
11
MODE
Operating Mode Logic Input. Sets device operating modes.
See Table 2 for details.
12
12
12
12
12
BIAS
Bias Setting Pin. For nominal bias, connect a 20kΩ resistor to
ground. Adjust RBIAS to alter the linearity of the mixers and
LNAs.
Dual-Function Pin. LO buffer output port for driving an external
PLL synthesizer. A logic high (through a 10kΩ resistor)
enables the PLL buffer. A logic low disables the PLL buffer.
Leave open if not used. If open, PLL is low.
8
13
13
13
13
13
PLL
14
14
14
14
14
LO_IN
15
15
15
15
15
BUFFEN
PCS LNA Input. Requires a DC-blocking capacitor that can be
used as part of the matching network.
Ground
LO Input. Internally matched to 50Ω, including DC-blocking
capacitor.
LO Buffer Enable Logic Input. A logic high enables the
external LO buffer port. Floats low.
_______________________________________________________________________________________
Quadruple-Mode PCS/Cellular/GPS LNA/Mixers
PIN
MAX2530
MAX2351
MAX2354 MAX2359 MAX2531 MAX2537
MAX2358
MAX2538
NAME
FUNCTION
16
16
16
16
16
LO_OUT
PCS and Cellular LO Output. Output frequency is equal to
mixer LO frequency. Internally matched with DC-blocking
capacitor. If not used, connect pin to ground or leave open.
17
17
17
17
17
VCC
2.7V to 3.3V Supply Pin. Connect a 100pF bypass capacitor
as close as possible to the pin.
18, 19
18, 19
18, 19
18, 19
18, 19
IF0+, IF0-
—
—
—
20, 21
20, 21
GPS IF Output. Requires a pullup inductor and a DC-blocking
GIF+, GIF- capacitor at each pin, which can be used as part of the
matching network. If not used, connect pins to VCC.
22, 23
22, 23
22, 23
22, 23
22, 23
IF1+, IF1-
Differential IF Output Port 1. Requires a pullup inductor and a
DC-blocking capacitor at each pin, which can be used as part
of the matching network. If not used, connect pins to VCC.
24
24
—
24
24
CMIX_IN
Cellular Mixer Input. Internally matched to 50Ω, including an
on-chip DC-blocking capacitor.
25
—
25
25
—
PMIX_IN
PCS Mixer Input. Internally matched to 50Ω. Requires a DCblocking capacitor.
26
26
26
26
26
IF_SEL
IF Select Logic Input. Logic low selects IF0 port, and logic
high selects IF1 port.
27
—
—
27
27
BAND
BAND Logic Input. See Table 2 for details.
28
—
28
28
—
EP
EP
EP
EP
EP
Differential IF Output Port 0. Requires a pullup inductor and a
DC-blocking capacitor at each pin, which can be used as part
of the matching network. If not used, connect pins to VCC.
PCS LNA Output. Requires a pullup inductor and a DCPLNA_OUT blocking capacitor, which can be used as part of the
matching network.
Exposed
Detailed Description
Signal Paths and Operation Modes
The MAX2351/MAX2354/MAX2358/MAX2359/MAX2530/
MAX2531/MAX2537/MAX2538 have multiple RF signal
paths. The cellular signal path has five modes of operation using a 4-gain-mode LNA and a 3-gain-mode mixer.
Similarly, the PCS signal path has four modes of operation made up of a 2-gain-mode LNA and a 3-gain-mode
mixer. The cellular and PCS mixer’s IF output can be
routed to either the IF0 or IF1 port. The GPS signal path
consists of a single-mode GPS, LNA, and mixer, which
has a dedicated IF output port. Tables 1 and 2 summarize the modes of operation.
Exposed Pad. RF and DC ground.
Low-Noise Amplifiers
The MAX2351/MAX2358/MAX2530/MAX2531/MAX2538
incorporate three LNA signal paths for the cellular,
PCS, and GPS bands. Using Maxim’s latest advanced
BiCMOS SiGe process, these LNAs deliver 1dB noise
figure for cellular, PCS, and GPS bands. The cellular
band LNAs have four modes of operation: high gain/
high linearity (HGHL), high gain/low linearity (HGLL),
midgain (MG), and low gain (LG). The PCS band LNAs
have two modes of operation: high gain/high linearity
and low gain. The GPS LNA has only one mode.
The BAND input selects the frequency band. The G1,
G2, and MODE pins are logic inputs that control the
LNA modes (see Table 2). Use HGHL mode when high
_______________________________________________________________________________________
9
MAX2351/4/8/9/MAX2530/1/7/8
Pin Description (continued)
MAX2351/4/8/9/MAX2530/1/7/8
Quadruple-Mode PCS/Cellular/GPS LNA/Mixers
LNA linearity is required for cross-modulation suppression. Use HGLL mode when the transmitter is off and
cross-modulation is not a concern. The LNAs are
designed to minimize input VSWR when changing
modes. Use low-gain mode for receiving large signals
and when high sensitivity is not required. The cellular
band provides an additional gain mode (MG) for
improved IP3 margin in CDMA medium-level interference condition.
Downconverters
The downconverters in these devices are doublebalanced mixers. The cellular and PCS mixers have
three gain modes: high linearity, low linearity, and low
gain. The cellular and PCS mixers can route the IF signal to either IF0 or IF1 port. IF_SEL = low routes the IF
signal to IF0 port; IF_SEL = high routes the IF signal to
IF1 port. The GPS mixer has only one mode, and it has
a dedicated IF port (Table 2). All mixer inputs include
on-chip matching networks to reduce the external component count.
LO Generation
Table 3 shows the options for the LO generation. The
on-chip LO divider or multiplier allows triple-band operation with a single VCO. The MAX2351 and MAX2531
have an LO multiplier that doubles the cellular band
VCO for PCS band operation. Conversely, the
MAX2358, MAX2537, and MAX2538 include an LO
divider that divides the PCS VCO frequency down to
cellular frequency band. The GPS LO is generated by a
fractional frequency scaler, which enables a single
VCO for operation in all three bands. The MAX2530 is
designed for operation with a dual-band VCO.
The PLL buffer output is provided for phase-locked
loop operation. The PLL pin serves two functions: RF
output signal for phase-locked loop operation and logic
input to enable or disable this buffer. A logic high
applied to this pin enables the PLL buffer; a logic low
disables the buffer.
A buffered LO output is provided to drive a transmit
upconverter. It is controlled by the BUFFEN input. For
time-division duplex applications, the buffer is available
to drive the transmitter even when the rest of the chip is
shut down. The port is internally AC-coupled, so a DCblocking capacitor is not required.
Bias Control
The bias control input (BIAS pin) controls the IC bias
current. Typically, connect a 20kΩ resistor to ground for
normal operation. Smaller bias resistor values increase
the supply current and linearity.
10
Applications Information
Cascaded LNA/Mixer Performance
The LNA and mixer design optimizes cascaded performance in all gain and linearity modes. In high-gain/highlinearity mode, both the LNA and mixer have low noise
figure, high gain, and high linearity. In this mode, the
LNA has extra-high linearity for superior cross-modulation suppression. The high-gain/low-linearity mode is
used when the transmitter is off and cross-modulation is
not a concern. In the ultra-low-gain mode, the received
signal is strong enough that sensitivity is not the limiting
factor. This mode focuses on minimizing supply current.
Tables 4, 5, 6 summarize the cascaded performance.
LNAs
The LNA inputs require external matching networks to
optimize gain, linearity, noise figure, and return loss. A
simple LC match is sufficient as shown in the Typical
Application Circuit. The cellular and GPS LNA outputs
are internally matched. The PCS LNA output requires
an inductor pullup to VCC and a series capacitor as
external matching elements. Table 7, 8, 9 show the Sparameters for each LNA. Tables 13, 14, 15 show LNA
noise parameters.
Mixers
All mixer inputs are internally matched. The GPS and
PCS mixer inputs require a DC-blocking capacitor; the
cellular mixer does not. All IF outputs must be inductively pulled up to VCC. The inductive pullup may be
used as part of the matching network. Because the differential IF output port is high impedance, a load resistor is typically used to ease the matching and establish
the gain. A 3.3kΩ resistor is recommended for IF0 and
IF1, and 8.2kΩ for the GIF port. The equivalent parallel
RC impedance of the IF ports is typically 12.2kΩ in parallel with 0.75pF. Tables 10, 11, 12 show S-parameters
for the mixer input points.
Table 1. Abbreviation for LNA and Mixer
Modes
ABBREVIATION
MODE
HGHL
High gain/high linearity
HGLL
High gain/low linearity
MG
Midgain
LG
Low gain
ULG
Ultra-low gain
HL
High linearity
LL
Low linearity
______________________________________________________________________________________
Quadruple-Mode PCS/Cellular/GPS LNA/Mixers
BAND
Cellular
PCS
GPS*
OPERATION MODE
LNA
MIXER
IF PORT
G2
G1
MODE
BAND
HGHL
HGHL
HL
IF0 or IF1
0
0
1
0
HGLL
HGLL
LL
IF0 or IF1
0
0
0
0
MG
MG
HL
IF0 or IF1
0
1
X
0
LG
LG
LL
IF0 or IF1
1
1
X
0
ULG
LG
LG
IF0 or IF1
1
0
X
0
HGHL
HGHL
HL
IF0 or IF1
0
0
1
1
LG
LG
LL
IF0 or IF1
1
1
X
1
ULG
LG
LG
IF0 or IF1
1
0
X
1
GPS
GPS
GPS
GIF
0
0
0
1
*MAX2530/MAX2531/MAX2537/MAX2538 only.
X = Don’t care.
Table 3. LO Frequency Plan
PART
MAX2351
MAX2354
MAX2358
MAX2359
MAX2530
MAX2531
MAX2537
MAX2538
VCO FREQUENCY
Cell Band VCO
Cell Band VCO
PCS Band VCO
PCS Band VCO
Cell and PCS Dual-Band VCO
Cell Band VCO
PCS Band VCO
PCS Band VCO
CELLULAR LO
FREQUENCY
fVCO
fVCO
0.5 x fVCO
—
fVCO
fVCO
0.5 x fVCO
0.5 x fVCO
PCS LO FREQUENCY
2 x fVCO
—
fVCO
fVCO
fVCO
2 x fVCO
—
fVCO
GPS LO
FREQUENCY
—
—
—
—
(2/3) fVCO
(4/3) fVCO
(2/3) fVCO
(2/3) fVCO
GPS Interstage
Layout Considerations
The GPS LNA and mixer include on-chip resonant tanks
that can be used instead of a saw filter for image suppression. These tanks are coupled by an external L-C
network between pins 8 and 10 as shown in the Typical
Application Circuit.
Keep RF signal lines as short as possible to minimize
losses and radiation. Use controlled impedance on all
high-frequency traces. Use high-Q (>40) components
for the LNA input-matching circuit to achieve the lowest
possible noise figure. At the mixer outputs, keep the
differential signal lines together and of equal length to
ensure signal balance. For proper operation, solder the
exposed paddle evenly to the ground plane. Use abundant ground vias between RF traces to minimize undesired coupling.
______________________________________________________________________________________
11
MAX2351/4/8/9/MAX2530/1/7/8
Table 2. Modes of Operation
MAX2351/4/8/9/MAX2530/1/7/8
Quadruple-Mode PCS/Cellular/GPS LNA/Mixers
Table 4. Typical Cascade Performance of Cellular-Band Receiver with 2.5dB Interstage
Loss (RBIAS = 20kΩ)
PARAMETER
Conversion Gain (dB)
Noise Figure (dB)
Input IP3 (dBm)
Supply Current (mA) (MAX2351/MAX2354/MAX2530/MAX2531)
Supply Current (mA) (MAX2358/MAX2537/MAX2538)
Table 5. Typical Cascade Performance of
PCS-Band Receiver with 2.5dB Interstage
Loss (RBIAS = 20kΩ)
PARAMETER
Conversion Gain (dB)
Noise Figure (dB)
Input IP3 (dBm)
Supply Current (mA)
(MAX2358/MAX2359/
MAX2530/MAX2538)
Supply Current (mA)
(MAX2351/MAX2531)
HGHL
26.00
1.72
-8.54
26.50
27.20
LG
4.50
13.16
+5.44
8.60
9.30
ULG
4.00
13.16
+3.46
7.40
8.10
HGHL
25.00
1.91
-5.14
27.70
28.90
HGLL
24.00
1.79
-6.21
20.60
21.80
LG
4.50
14.50
13.59
13.90
15.10
ULG
2.50
14.50
5.44
6.50
7.70
Table 6. Typical Cascade Performance
of GPS Band (RBIAS = 20kΩ)
WITH 2.5dB
INTERSTAGE
SAW LOSS
WITH LC
INTERSTAGE
MATCH
Conversion Gain (dB)
30.50
29.09
Noise Figure (dB)
1.32
1.99
Input IP3 (dBm)
-15.05
-14.35
Supply Current (mA)
(MAX2530/MAX2537/
MAX2538)
18.90
18.90
Supply Current (mA)
(MAX2531)
19.60
19.60
25
15
PARAMETER
Image Suppression (dB)
12
MG
12.00
9.10
7.75
23.50
24.70
______________________________________________________________________________________
Quadruple-Mode PCS/Cellular/GPS LNA/Mixers
MAX2351/4/8/9/MAX2530/1/7/8
Table 7. S-Parameters for Cellular LNA in HGHL Mode
S11
S21
S12
S22
FREQUENCY
(Hz)
MAG
PHASE
(DEG)
MAG
PHASE
(DEG)
MAG
PHASE
(DEG)
MAG
PHASE
(DEG)
100M
835m
-15.10
554.2m
-115.6
736.4µ
121.10
995.1m
-8.043
200M
779.9m
-25.60
874.9m
-120.1
1.099m
119.60
986.1m
-16.150
300M
748.7m
-35.09
1.301
-121.0
1.65m
175.20
971.9m
-24.720
400M
729.4m
-44.95
1.883
-127.0
5.01m
197.80
949.1m
-34.160
500M
709.9m
-55.94
2.599
-137.2
11.55m
195.50
909.9m
-44.900
600M
687.1m
-68.06
3.396
-150.1
22.25m
188.20
845m
-57.540
700M
640.3m
-81.90
4.244
-166.0
37.71m
175.90
735.4m
-72.430
800M
557.8m
-96.31
4.959
-184.3
56.79m
160.40
570.6m
-89.160
810M
547.6m
-97.70
5.341
-203.5
76.06m
158.70
365.8m
-106.200
820M
537.1m
-99.06
5.358
-205.4
77.86m
157.10
344.5m
-107.800
830M
526.3m
-100.4
5.37
-207.3
79.62m
155.40
323.3m
-109.500
840M
515.2m
-101.70
5.379
-209.1
81.34m
153.70
302.2m
-111.100
850M
503.9m
-103.00
5.385
-211.0
83.03m
152.10
281.1m
-112.600
860M
492.5m
-104.20
5.386
-212.8
84.68m
150.40
260.2m
-114.200
870M
480.8m
-105.40
5.385
-214.6
86.29m
148.70
239.5m
-115.700
880M
469.1m
-106.50
5.38
-216.4
87.85m
147.10
218.9m
-117.200
890M
457.2m
-107.60
5.372
-218.1
89.38m
145.40
198.6m
-118.700
900M
445.3m
-108.60
5.362
-219.9
90.86m
143.70
178.6m
-120.100
1G
330.5m
-115.10
5.348
-221.6
92.3m
128.00
158.9m
-121.500
1.25G
207.7m
-94.89
4.556
-256.9
116m
97.48
216.9m
27.620
1.5G
283.4m
-86.74
3.71
-281.6
129.9m
76.60
412.3m
9.951
1.75G
382.4m
-99.91
3.071
-301.6
135.2m
60.00
529.5m
-2.140
2G
492m
-120.90
2.536
-320.9
132.1m
44.58
628.6m
-12.040
2.25G
629.8m
-149.50
1.933
-342.4
110m
29.61
739.7m
-22.720
2.5G
762.5m
-190.70
989.2m
-364.5
49.89m
50.28
853.3m
-38.460
2.75G
703.3m
-242.40
549.2m
-289.0
128.9m
89.36
833.5m
-58.420
3G
490m
-287.30
1.273
-295.0
198.4m
69.98
707.4m
-70.290
3.25G
335.7m
-321.00
1.579
-312.0
238m
55.30
626.1m
-75.550
3.5G
258.5m
-352.10
1.697
-326.7
264.9m
43.14
575.5m
-78.930
3.75G
212.7m
-22.90
1.723
-338.6
284m
32.81
549.8m
-81.490
4G
189.9m
-51.60
1.729
-348.9
298.7m
23.80
536.3m
-84.470
______________________________________________________________________________________
13
MAX2351/4/8/9/MAX2530/1/7/8
Quadruple-Mode PCS/Cellular/GPS LNA/Mixers
Table 8. S-Parameters for PCS LNA in HGHL Mode
S11
FREQUENCY
(Hz)
14
S21
MAG
PHASE
(DEG)
100M
826.3m
200M
730m
300M
S12
MAG
PHASE
(DEG)
-18.04
28.510
-33.35
25.050
623.7m
-44.60
400M
530.6m
500M
508.6m
600M
700M
800M
S22
MAG
PHASE
(DEG)
MAG
PHASE
(DEG)
163.100
8.437m
86.50
947.8m
-7.457
141.400
15.81m
72.78
870.8m
-25.890
21.350
125.200
21.38m
64.46
795.4m
-38.050
-52.40
18.100
112.300
25.89m
58.80
740.8m
-47.460
-55.46
14.650
106.400
25.66m
58.70
583.3m
-53.250
419.8m
-62.24
13.410
94.840
32.75m
54.65
657.3m
-58.520
379.3m
-65.01
11.750
87.380
36.18m
52.16
647.1m
-64.100
351.2m
-67.46
10.450
80.970
39.47m
50.17
642.7m
-68.980
900M
329.5m
-69.90
9.419
75.050
42.7m
48.26
643.4m
-73.540
1G
310.7m
-72.33
8.565
69.280
45.59m
46.42
647.5m
-77.870
1.1G
293.7m
-74.30
7.822
63.670
48.5m
44.57
652.1m
-81.950
1.2G
280.4m
-75.57
7.158
58.350
51.34m
42.79
657.4m
-85.690
1.3G
271.9m
-76.33
6.573
53.390
54.13m
40.96
663.8m
-89.130
1.4G
267.7m
-76.88
6.065
48.740
56.8m
39.06
672.2m
-92.320
1.5G
266.6m
-77.55
5.622
44.290
59.33m
37.14
682.5m
-95.320
1.6G
267.8m
-78.48
5.233
40.010
61.75m
35.20
693.8m
-98.200
1.7G
270.5m
-79.62
4.887
35.860
64.01m
33.18
705.1m
-101.000
1.8G
274.6m
-80.87
4.576
31.840
66.01m
31.12
715.9m
-103.600
1.9G
280.4m
-82.23
4.296
27.970
67.69m
29.12
726.3m
-106.100
1.91G
281.1m
-82.38
4.270
27.600
67.84m
28.93
727.3m
-106.300
1.92G
281.8m
-82.53
4.244
27.220
67.99m
28.74
728.4m
-106.600
1.93G
282.5m
-82.68
4.218
26.840
68.14m
28.55
729.4m
-106.800
1.94G
283.2m
-82.82
4.192
26.470
68.28m
28.36
730.4m
-107.000
1.95G
284m
-82.98
4.167
26.090
68.43m
28.18
731.5m
-107.300
1.96G
284.8m
-83.13
4.142
25.720
68.57m
27.99
732.5m
-107.500
1.97G
285.6m
-83.29
4.117
25.350
68.71m
27.81
733.5m
-107.700
1.98G
286.4m
-83.45
4.093
24.980
68.85m
27.63
734.5m
-108.000
1.99G
287.2m
-83.61
4.069
24.610
68.99m
27.45
735.6m
-108.200
2G
288m
-83.77
4.045
24.250
69.12m
27.27
736.6m
-108.400
2.1G
297.2m
-85.53
3.818
20.650
70.37m
25.57
747m
-110.600
2.2G
307.7m
-87.49
3.614
17.180
71.48m
24.03
757.6m
-112.700
2.3G
319.5m
-89.65
3.429
13.830
72.5m
22.66
768.5m
-114.600
2.4G
332.6m
-92.00
3.264
10.590
73.47m
21.46
779.7m
-116.600
2.5G
346.9m
-94.53
3.116
7.455
74.47m
20.45
791.3m
-118.400
2.6G
362.5m
-97.25
2.984
4.420
75.59m
19.61
803.2m
-120.300
2.7G
379.7m
-100.20
2.870
1.4740
76.93m
18.96
815.5m
-122.100
2.8G
398.1m
-103.60
2.775
-1.475
78.78m
18.45
828.4m
-124.000
2.9G
415.5m
-107.70
2.697
-4.627
81.42m
17.73
840.5m
-126.000
3G
428.9m
-112.50
2.622
-8.150
84.47m
16.44
849.8m
-127.900
______________________________________________________________________________________
Quadruple-Mode PCS/Cellular/GPS LNA/Mixers
S11
FREQUENCY
(Hz)
MAG
S21
PHASE
(DEG)
MAG
S12
PHASE
(DEG)
MAG
S22
PHASE
(DEG)
MAG
PHASE
(DEG)
100M
897m
-8.953
391.4m
-106.5
279.4µ
142.10
996.2m
-6.446
200M
878.4m
-17.210
640.8m
-109.6
645.4µ
131.50
989.8m
-12.850
300M
859m
-25.060
892.3m
-106.4
883.4µ
150.50
980.7m
-19.390
400M
839.1m
-32.680
1.231
-104.0
1.579m
178.90
968.7m
-26.200
500M
818.7m
-40.390
1.691
-104.3
3.26m
191.20
953.2m
-33.480
600M
802.3m
-47.710
2.249
-107.0
5.893m
194.80
933.8m
-41.400
700M
787.6m
-55.560
2.97
-111.9
10m
192.70
907.6m
-50.410
800M
772m
-64.070
3.867
-119.2
15.78m
187.20
869.1m
-60.940
900M
751.1m
-73.420
4.916
-129.2
23.39m
179.40
810.1m
-73.480
1G
718.6m
-83.770
6.029
-141.6
32.81m
169.50
720.9m
-88.550
1.1G
666.6m
-94.890
7.037
-155.9
43.28m
157.90
596.2m
-106.500
1.2G
593.1m
-105.900
7.742
-171.2
53.35m
145.40
444.7m
-128.200
1.3G
506.2m
-115.600
8.033
-186.2
61.65m
133.30
293.1m
-156.200
1.4G
419.5m
-123.100
7.955
-199.9
67.69m
122.40
186.2m
-199.700
1.5G
344m
-127.900
7.64
-211.7
71.78m
113.30
177.6m
-255.300
1.51G
337.2m
-128.200
7.601
-212.8
72.11m
112.50
181.8m
-260.000
1.52G
330.7m
-128.500
7.561
-213.9
72.43m
111.70
186.6m
-264.400
1.53G
324.3m
-128.800
7.52
-214.9
72.73m
110.90
191.8m
-268.500
1.54G
318m
-129.000
7.479
-216.0
73.03m
110.10
197.4m
-272.400
1.55G
311.9m
-129.300
7.437
-217.0
73.32m
109.30
203.3m
-276.000
1.56G
306m
-129.500
7.394
-218.0
73.59m
108.60
209.5m
-279.500
1.57G
300.2m
-129.600
7.351
-219.0
73.86m
107.90
215.8m
-282.700
1.58G
294.6m
-129.800
7.307
-219.9
74.12m
107.20
222.3m
-285.700
1.59G
289.2m
-129.900
7.263
-220.9
74.38m
106.50
228.9m
-288.500
1.6G
283.9m
-130.000
7.219
-221.8
74.62m
105.80
235.5m
-291.100
1.7G
239.4m
-130.000
6.777
-230.4
76.78m
99.70
300.4m
-311.100
1.8G
208m
-128.700
6.359
-237.7
78.68m
94.75
356.2m
-324.000
1.9G
186m
-126.900
5.979
-244.1
80.58m
90.66
401.9m
-333.500
2G
170.2m
-124.800
5.637
-249.9
82.6m
87.15
439.3m
-341.000
2.1G
158.8m
-122.800
5.328
-255.0
84.75m
84.05
469.6m
-347.300
2.2G
150.9m
-120.900
5.05
-259.7
86.99m
81.26
494.3m
-352.800
2.3G
145.5m
-119.300
4.802
-264.0
89.28m
78.68
514.2m
-357.600
2.4G
142.1m
-118.200
4.58
-268.0
91.57m
76.29
530m
-2.000
2.5G
139.8m
-117.500
4.382
-271.7
93.8m
74.07
542.2m
-6.000
2.6G
138.3m
-117.200
4.204
-275.2
95.98m
72.04
551.3m
-9.700
2.7G
137m
-117.400
4.044
-278.5
98.11m
70.19
558m
-13.100
2.8G
133.5m
-117.700
3.895
-281.8
100.1m
68.60
562.3m
-16.100
2.9G
128.4m
-114.600
3.727
-285.1
102.5m
67.51
567m
-18.600
3G
139.9m
-109.200
3.557
-287.2
106m
66.24
574.8m
-21.200
______________________________________________________________________________________
15
MAX2351/4/8/9/MAX2530/1/7/8
Table 9. S-Parameters for GPS LNA
MAX2351/4/8/9/MAX2530/1/7/8
Quadruple-Mode PCS/Cellular/GPS LNA/Mixers
Table 9. S-Parameters for GPS LNA (continued)
S11
S21
S12
S22
FREQUENCY
(Hz)
MAG
PHASE
(DEG)
MAG
PHASE
(DEG)
MAG
PHASE
(DEG)
MAG
PHASE
(DEG)
3.1G
162.7m
-110.6
3.458
-288.7
109.3m
64.45
579.9m
-24.1
3.2G
182.9m
-117.0
3.422
-290.4
111.8m
62.71
581.1m
-26.8
3.3G
193.1m
-126.3
3.422
-293.0
113.9m
61.32
580.5m
-29.2
3.4G
187.8m
-135.5
3.405
-296.5
116.3m
60.27
580.1m
-31.4
3.5G
173.9m
-141.5
3.340
-300.1
119.1m
59.34
580.8m
-33.4
3.6G
161.5m
-144.5
3.251
-303.4
122.2m
58.40
581.9m
-35.3
3.7G
153.7m
-145.6
3.161
-306.2
125.5m
57.45
582.9m
-37.3
3.8G
150m
-146.3
3.080
-308.8
128.9m
56.54
584m
-39.1
3.9G
149.2m
-146.9
3.008
-311.2
132.4m
55.68
585.3m
-41.0
4G
150.3m
-147.8
2.945
-313.5
136.2m
54.86
587m
-42.7
Table 10. S-Parameters for Cellular Mixer in High-Linearity Mode
16
S11
S11
PHASE (DEG)
FREQUENCY
(MHz)
997.8m
-6.397
880M
289m
-192.4
993.1m
-13.080
890M
284.4m
-203.5
900M
285.5m
-214.6
FREQUENCY
(Hz)
MAG
100M
200M
MAG
PHASE (DEG)
300M
984.5m
-20.480
400M
968.2m
-29.270
1G
451.9m
-286.0
500M
941.8m
-40.340
1.25G
734.2m
-337.2
-56.150
1.5G
815.1m
-356.3
600M
879m
700M
739.9m
-80.690
1.75G
846.4m
-8.0
800M
475.4m
-123.700
2G
860.2m
-16.9
810M
444.8m
-129.900
2.25G
864.6m
-16.9
820M
414.7m
-136.700
2.5G
862m
-16.9
830M
385.9m
-144.100
2.75G
850.6m
-16.9
840M
359.1m
-152.300
3G
846.6m
-16.9
850M
335.2m
-161.200
3.25G
857.1m
-16.9
860M
314.9m
-170.900
3.5G
860.5m
-16.9
870M
299.3m
-181.400
3.75G
857.2m
-16.9
4G
849.3m
-16.9
______________________________________________________________________________________
Quadruple-Mode PCS/Cellular/GPS LNA/Mixers
FREQUENCY
(Hz)
100M
200M
300M
400M
500M
600M
700M
800M
900M
1G
1.1G
1.2G
1.3G
1.4G
1.5G
1.6G
1.7G
1.8G
1.9G
1.91G
1.92G
1.93G
1.94G
1.95G
S11
MAG
949.1m
942.3m
933.3m
922.8m
904.9m
895.6m
881.2m
863.9m
845.8m
826.6m
804m
776.7m
742.2m
696.8m
635.2m
554.4m
454.4m
335.7m
207.5m
195.6m
184.3m
173.7m
164.1m
155.7m
PHASE (DEG)
-3.234
-6.090
-8.977
-11.780
-14.700
-17.390
-20.300
-23.310
-26.410
-29.830
-33.700
-38.130
-43.330
-49.580
-57.090
-66.040
-77.180
-92.710
-120.400
-124.700
-129.500
-134.800
-140.700
-147.200
S11
FREQUENCY
(Hz)
MAG
PHASE (DEG)
1.96G
1.97G
1.98G
1.99G
2G
2.1G
2.2G
2.3G
2.4G
2.5G
2.6G
2.7G
2.8G
2.9G
3G
3.1G
3.2G
3.3G
3.4G
3.5G
3.6G
3.7G
3.8G
3.9G
4G
148.7m
143.5m
140.2m
139.2m
140.4m
244.9m
402.9m
551.8m
675.8m
773.9m
851.9m
911.7m
948.5m
964m
964.3m
956.1m
944.9m
934.5m
928m
926.9m
929.9m
934.9m
939.9m
944.2m
947.8m
-154.3
-162.0
-170.2
-178.6
-187.2
-246.7
-273.1
-290.0
-302.9
-313.4
-322.3
-330.3
-337.6
-343.9
-349.2
-353.4
-356.6
-359.1
-1.0
-2.7
-4.2
-5.8
-7.4
-9.1
-10.6
______________________________________________________________________________________
17
MAX2351/4/8/9/MAX2530/1/7/8
Table 11. S-Parameters for PCS Mixer in High Linearity Mode
MAX2351/4/8/9/MAX2530/1/7/8
Quadruple-Mode PCS/Cellular/GPS LNA/Mixers
Table 12. S-Parameters for GPS Mixer in High Linearity Mode
18
S11
FREQUENCY
(Hz)
MAG
PHASE (DEG)
100M
200M
300M
400M
500M
600M
700M
800M
900M
1G
1.1G
1.2G
1.3G
1.4G
1.5G
1.51G
1.52G
1.53G
1.54G
1.55G
1.56G
1.57G
1.58G
1.59G
955.2m
947.6m
938m
926.8m
910.8m
896m
877.6m
854.6m
825.7m
790.1m
743.8m
681.1m
594.6m
474.7m
307.7m
288.2m
268.2m
247.7m
226.8m
205.4m
183.7m
161.5m
139m
116.2m
-3.662
-6.944
-10.250
-13.550
-16.840
-20.300
-23.970
-27.950
-32.250
-37.090
-42.690
-49.330
-57.350
-67.280
-79.620
-80.960
-82.330
-83.700
-85.080
-86.460
-87.840
-89.200
-90.520
-91.770
FREQUENCY
(Hz)
1.6G
1.7G
1.8G
1.9G
2G
2.1G
2.2G
2.3G
2.4G
2.5G
2.6G
2.7G
2.8G
2.9G
3G
3.1G
3.2G
3.3G
3.4G
3.5G
3.6G
3.7G
3.8G
3.9G
4G
S11
MAG
93.14m
143.3m
357.5m
522.6m
639m
718.6m
772.8m
811.4m
842.9m
869.8m
890.8m
906.1m
916.8m
924m
928.9m
932.3m
934.5m
935.8m
936.4m
936.4m
936m
935.3m
934.3m
933.1m
931.7m
______________________________________________________________________________________
PHASE (DEG)
-92.870
67.370
53.140
40.470
30.150
21.880
15.230
9.874
5.410
1.356
-2.443
-5.968
-9.216
-12.200
-14.940
-17.490
-19.880
-22.150
-24.300
-26.360
-28.340
-30.240
-32.080
-33.880
-35.620
Quadruple-Mode PCS/Cellular/GPS LNA/Mixers
FREQUENCY
NFMIN (dB)
(MHz)
700
0.75
800
0.76
810
0.76
820
0.76
830
0.76
840
0.77
850
0.77
860
0.78
870
0.77
880
0.77
890
0.77
900
0.78
1000
0.79
|ΓOPT|
∠ΓOPT
RN (Ω)
0.15
0.16
0.16
0.17
0.17
0.17
0.17
0.17
0.17
0.17
0.17
0.18
0.19
107
117
118
119
120
121
122
123
123
124
125
126
134
4.0
3.9
3.9
3.8
3.8
3.8
3.8
3.8
3.8
3.8
3.7
3.7
3.6
Table 14. Noise Parameters for PCS LNA
in HGHL Mode
FREQUENCY
(MHz)
1800
1900
1910
1920
1930
1940
1950
1960
1970
1980
1990
2000
2100
NFMIN
(dB)
0.89
0.89
0.89
0.89
0.89
0.90
0.90
0.90
0.90
0.90
0.90
0.90
0.91
|ΓOPT|
∠ΓOPT
RN (Ω)
0.22
0.19
0.19
0.19
0.18
0.18
0.18
0.18
0.18
0.18
0.18
0.17
0.17
-123
-129
-130
-131
-131
-133
-134
-134
-135
-136
-137
-138
-147
4.3
4.2
4.2
4.2
4.2
4.1
4.1
4.1
4.1
4.1
4.1
4.1
4.0
Table 15. Noise Parameters for GPS LNA
in HGHL Mode
FREQUENCY
NFMIN (dB)
(MHz)
1400
0.71
1500
0.73
1510
0.74
1520
0.74
1530
0.74
1540
0.74
1550
0.75
1560
0.75
1570
0.75
1580
0.75
|ΓOPT|
∠ΓOPT
RN (Ω)
0.20
0.19
0.19
0.19
0.19
0.19
0.19
0.19
0.19
0.19
78
84
85
85
86
86
87
87
88
88
4.7
4.6
4.6
4.6
4.6
4.6
4.6
4.6
4.6
4.6
Chip Information
TRANSISTOR COUNT: 2538
PROCESS: BiCMOS
______________________________________________________________________________________
19
MAX2351/4/8/9/MAX2530/1/7/8
Table 13. Noise Parameters for Cellular
LNA in HGHL Mode
Quadruple-Mode PCS/Cellular/GPS LNA/Mixers
MAX2351/4/8/9/MAX2530/1/7/8
Typical Application Circuit
VCC
IF1
CELL
VCC
6800pF
8.2pF
3.3nH
3.3kΩ
PCS
100pF
28
27
25
26
24
23
22
IF_SEL
1
1nH
IF OUTPUT MUX
6800pF
21
2
1.2pF
PCS
3
6800pF
3.3kΩ
IF0
19
MAX2538
18
2.4pF
CELL
VCC
SHDN
6800pF
GPS
GPS
IF
20
7.5nH
4
8.2kΩ
5
17
VCC
2.2nH
÷2
6
16
1.8pF
G1
LO_OUT
÷1.5
7
8
9
10
11
15
12
13
BUFFEN
14
VCO
MODE
0.8pF
20kΩ
RBIAS
0.8pF
10kΩ
5.1nH
PLL ENABLE
XTAL
20
PLL
LOOP
FILTER
______________________________________________________________________________________
Quadruple-Mode PCS/Cellular/GPS LNA/Mixers
CLNA_OUT
1
PLNA_IN
2
GND
3
CLNA_IN
PLNA_OUT
BAND
IF_SEL
PMIX_IN
CMIX_IN
IF1-
IF1+
28
27
26
25
24
23
22
I.C.
20
I.C.
19
IFO-
4
18
IFO+
SHDN
5
17
VCC
N.C./GND
6
16
LO_OUT
G1
7
15
BUFFEN
IF OUTPUT MUX
21
MAX2351
8
9
10
11
12
13
14
N.C./GND
G2
I.C.
MODE
BIAS
PLL
LO_IN
X2
______________________________________________________________________________________
21
MAX2351/4/8/9/MAX2530/1/7/8
Pin Configurations (continued)
Quadruple-Mode PCS/Cellular/GPS LNA/Mixers
CLNA_OUT
1
N.C./GND
2
GND
3
CLNA_IN
I.C.
GND
IF_SEL
I.C.
CMIX_IN
IF1-
IF1+
28
27
26
25
24
23
22
21
I.C.
20
I.C.
19
IFO-
4
18
IFO+
SHDN
5
17
VCC
N.C./GND
6
16
LO_OUT
G1
7
15
BUFFEN
IF OUTPUT MUX
MAX2351/4/8/9/MAX2530/1/7/8
Pin Configurations (continued)
22
8
9
10
11
12
13
14
N.C./GND
G2
I.C.
MODE
BIAS
PLL
LO_IN
MAX2354
______________________________________________________________________________________
Quadruple-Mode PCS/Cellular/GPS LNA/Mixers
CLNA_OUT
1
PLNA_IN
2
GND
3
CLNA_IN
PLNA_OUT
BAND
IF_SEL
PMIX_IN
CMIX_IN
IF1-
IF1+
28
27
26
25
24
23
22
I.C.
20
I.C.
19
IFO-
4
18
IFO+
SHDN
5
17
VCC
N.C./GND
6
16
LO_OUT
G1
7
15
BUFFEN
IF OUTPUT MUX
21
MAX2358
8
9
10
11
12
13
14
N.C./GND
G2
I.C.
MODE
BIAS
PLL
LO_IN
÷2
______________________________________________________________________________________
23
MAX2351/4/8/9/MAX2530/1/7/8
Pin Configurations (continued)
Quadruple-Mode PCS/Cellular/GPS LNA/Mixers
N.C./GND
1
PLNA_IN
2
GND
3
N.C./GND
PLNA_OUT
I.C.
IF_SEL
PMIX_IN
N.C./GND
IF1-
IF1+
28
27
26
25
24
23
22
21
I.C.
20
I.C.
19
IFO-
4
18
IFO+
SHDN
5
17
VCC
N.C./GND
6
16
LO_OUT
G1
7
15
BUFFEN
IF OUTPUT MUX
MAX2351/4/8/9/MAX2530/1/7/8
Pin Configurations (continued)
24
8
9
10
11
12
13
14
N.C./GND
G2
I.C.
MODE
BIAS
PLL
LO_IN
MAX2359
______________________________________________________________________________________
Quadruple-Mode PCS/Cellular/GPS LNA/Mixers
SHDN
5
GLNA_IN
6
G1
7
PLNA_OUT
BAND
IF_SEL
PMIX_IN
CMIX_IN
IF1-
IF1+
MAX2530
÷1.5
8
9
10
11
12
13
14
LO_IN
4
IF OUTPUT MUX
CLNA_IN
22
PLL
3
23
BIAS
GND
24
MODE
2
25
GMIX_IN
PLNA_IN
26
G2
1
27
GLNA_OUT
CLNA_OUT
28
21
GIF-
20
GIF+
19
IFO-
18
IFO+
17
VCC
16
LO_OUT
15
BUFFEN
______________________________________________________________________________________
25
MAX2351/4/8/9/MAX2530/1/7/8
Pin Configurations (continued)
Quadruple-Mode PCS/Cellular/GPS LNA/Mixers
26
4
SHDN
5
GLNA_IN
6
G1
7
PLNA_OUT
BAND
IF_SEL
PMIX_IN
CMIX_IN
IF1-
IF1+
MAX2531
X2
÷1.5
8
9
10
11
12
13
14
LO_IN
CLNA_IN
22
IF OUTPUT MUX
3
23
PLL
GND
24
BIAS
2
25
MODE
PLNA_IN
26
GMIX_IN
1
27
G2
CLNA_OUT
28
GLNA_OUT
MAX2351/4/8/9/MAX2530/1/7/8
Pin Configurations (continued)
21
GIF-
20
GIF+
19
IFO-
18
IFO+
17
VCC
16
LO_OUT
15
BUFFEN
______________________________________________________________________________________
Quadruple-Mode PCS/Cellular/GPS LNA/Mixers
SHDN
5
GLNA_IN
6
G1
7
I.C.
BAND
IF_SEL
I.C.
CMIX_IN
IF1-
IF1+
MAX2537
÷2
÷1.5
8
9
10
11
12
13
14
LO_IN
4
IF OUTPUT MUX
CLNA_IN
22
PLL
3
23
BIAS
GND
24
MODE
2
25
GMIX_IN
N.C./GND
26
G2
1
27
GLNA_OUT
CLNA_OUT
28
21
GIF-
20
GIF+
19
IFO-
18
IFO+
17
VCC
16
LO_OUT
15
BUFFEN
Package Information
For the latest package outline information, go to
www.maxim-ic.com/packages.
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 ____________________ 27
© 2004 Maxim Integrated Products
Printed USA
is a registered trademark of Maxim Integrated Products.
MAX2351/4/8/9/MAX2530/1/7/8
Pin Configurations (continued)