General Description
The MAX2320/MAX2321/MAX2322/MAX2324/MAX2326/
MAX2327 high-performance silicon germanium (SiGe)
receiver front-end ICs set a new industry standard for
low noise and high linearity at a low supply current. This
family integrates a variety of unique features such as an
LO frequency doubler and divider, dual low-noise
amplifier (LNA) gain settings, and a low-current paging
mode that extends the handset standby time.
The MAX2320 family includes six ICs: four operate at
both cellular and PCS frequencies, one operates at cel-
lular frequencies, and one at PCS frequencies (see
Selector Guide). Each part includes an LNA with a high
input third-order intercept point (IIP3) to minimize inter-
modulation and cross-modulation in the presence of
large interfering signals. In low-gain mode, the LNA is
bypassed to provide higher cascaded IIP3 at a lower
current. For paging, a low-current, high-gain mode is
provided.
The CDMA mixers in cellular and PCS bands have high
linearity, low noise, and differential IF outputs. The FM
mixer is designed for lower current and a single-ended
output.
All devices come in a 20-pin TSSOP-EP package with
exposed paddle (EP) and are specified for the extend-
ed temperature range (-40C to +85C).
Applications
CDMA/TDMA/PDC/WCDMA/GSM Cellular Phones
Single/Dual/Triple-Mode Phones
Wireless Local Loop (WLL)
Features
o Ultra-High Linearity at Ultra-Low Current and
Noise
o +2.7V to +3.6V Operation
o Pin-Selectable Low-Gain Mode Reduces Gain by
17dB and Current by 3mA
o Pin-Selectable Paging Mode Reduces Current
Draw by 6mA when Transmitter Is Not in Use
o LO Output Buffers
o LO Frequency Doubler (MAX2321)
o LO Frequency Divider (MAX2326)
o 0.1A Shutdown Current
o 20-Pin TSSOP-EP Package
MAX2320/21/22/24/26/27
Adjustable, High-Linearity,
SiGe Dual-Band LNA/Mixer ICs
________________________________________________________________ Maxim Integrated Products
1
20
19
18
17
16
15
14
13
1
2
3
4
5
6
7
8
MIXINH
MIXINL
RBIAS
CDMA+
LNAINH
RLNA
20 TSSOP-EP
6mm x 6.3mm
LNAOUTL
LNAOUTH
TOP VIEW
CDMA-
BUFFEN
V
CC
FMOUT
GAIN
LIN
BAND
LNAINL
12
11
9
10
LOLOUT
LOHOUT
LOHIN
LOLIN
MAX2320
MAX2321
MAX2326
TSSOP
19-1535; Rev 1; 6/00
PART
MAX2320EUP
MAX2321EUP
MAX2322EUP
-40C to +85C
-40C to +85C
-40C to +85C
TEMP. RANGE
PIN-PACKAGE
20 TSSOP-EP
20 TSSOP-EP
20 TSSOP-EP
EVALUATION KIT MANUAL
FOLLOWS DATA SHEET
Typical Application Circuits appear at end of data sheet.
Pin Configurations continued at end of data sheet.
Pin Configurations
Ordering Information
MAX2324EUP
MAX2326EUP
MAX2327EUP
-40C to +85C
-40C to +85C
-40C to +85C
20 TSSOP-EP
20 TSSOP-EP
20 TSSOP-EP
PCS band, single mode with optional frequency
doubler
MAX2322
MAX2320 with LO doubler
Dual-band, dual VCO inputs, and dual IF outputs
MAX2320
MAX2321
DESCRIPTION
PART
Selector Guide
Dual-band, dual VCO inputs, and separately
controlled VCO buffers
MAX2327
MAX2320 with LO divider
Cellular band, dual IF outputs
MAX2324
MAX2326
For free samples and the latest literature, visit www.maxim-ic.com or phone 1-800-998-8800.
For small orders, phone 1-800-835-8769.
MAX2320/21/22/24/26/27
Adjustable, High-Linearity,
SiGe Dual-Band LNA/Mixer ICs
2
_______________________________________________________________________________________
ABSOLUTE MAXIMUM RATINGS
DC ELECTRICAL CHARACTERISTICS--MAX2320/MAX2321/MAX2326
(V
CC
= +2.7V to +3.6V, R
RBIAS
= R
RLNA
= 20k
, no RF signals applied, BUFFEN = low, LO buffer outputs connected to V
CC
through
50
resistors, all other RF and IF outputs connected to V
CC
, T
A
= -40C to +85C, unless otherwise noted. Typical values are at V
CC
=
+2.75V and T
A
= +25C, unless otherwise noted.)
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.
V
CC
to GND ...........................................................-0.3V to +4.3V
Digital Input Voltage to GND ......................-0.3V to (V
CC
+ 0.3V)
RF Input Signals ...........................................................1.0V peak
Continuous Power Dissipation (T
A
= +70C)
20-Pin TSSOP-EP (derate 80mW/C above +70C)........6.4W
Operating Temperature Range ...........................-40C to +85C
Junction Temperature ......................................................+150C
Storage Temperature Range .............................-65C to +150C
Lead Temperature (soldering, 10s) .................................+300C
Operating Supply Current
(Note 1)
I
CC
17.5
21.5
17
21.5
Cellular band
MAX2326
MAX2320/1
21
26
17
21.5
PCS band
MAX2321
MAX2320/6
Low-gain,
high-linearity
modes
15.5
20
15
19.5
Cellular band
MAX2326
MAX2320/1
19
25
15
19.5
PCS band
MAX2321
MAX2320/6
High-gain,
low-linearity
paging modes
21
25.5
mA
20
25.3
Cellular band
MAX2326
MAX2320/1
24
30.8
20
25.3
PCS band
MAX2321
MAX2320/6
High-gain,
high-linearity
modes
PARAMETER
SYMBOL
MIN
TYP
MAX
UNITS
14
18.5
Shutdown Supply Current
I
SHDN
0.1
20
A
Digital Input Logic High
V
IH
2.0
V
Supply Voltage
V
CC
+2.7
+3.6
V
Digital Input Logic Low
V
IL
0.6
V
Digital Input Current High
I
IH
5
A
Digital Input Current Low
I
IL
-35
A
CONDITIONS
FM mode
(Note 1)
5.5
8.5
Cellular band
MAX2326
5
7.5
PCS band
MAX2320/1/6
LO Buffer Supply Current
I
LOBUF
5
7.5
mA
Additional current for
BUFFEN = high
Cellular band
MAX2320/1
MAX2320/21/22/24/26/27
Adjustable, High-Linearity,
SiGe Dual-Band LNA/Mixer ICs
_______________________________________________________________________________________
3
DC ELECTRICAL CHARACTERISTICS--MAX2322/MAX2324
(V
CC
= +2.7V to +3.6V, R
RBIAS
= R
RLNA
= 20k
, no RF signals applied, BUFFEN = low, LO buffer outputs connected to V
CC
through
50
resistors, all other RF and IF outputs connected to V
CC
, T
A
= -40C to +85C, unless otherwise noted. Typical values are at V
CC
=
+2.75V and T
A
= +25C, unless otherwise noted.)
DC ELECTRICAL CHARACTERISTICS--MAX2327
(V
CC
= +2.7V to +3.6V, R
RBIAS
= R
RLNA
= 20k
, no RF signals applied, BUFFEN = low, LO buffer outputs connected to V
CC
through
50
resistors, all other RF and IF outputs connected to V
CC
, T
A
= -40C to +85C, unless otherwise noted. Typical values are at
V
CC
= +2.75V and T
A
= +25C, unless otherwise noted.)
High-gain,
high-linearity
modes
FM mode (MAX2324 only)
(Note 1)
LOX2 = low
14.5
18.5
CONDITIONS
LOX2 = high
PCS band
(MAX2322)
20
25.3
24
30.8
Cellular band (MAX2324)
20
25.3
A
-35
I
IL
Digital Input Current Low
A
5
I
IH
Digital Input Current High
V
0.6
V
IL
Digital Input Logic Low
V
+2.7
+3.6
V
CC
Supply Voltage
V
2.0
V
IH
Digital Input Logic High
A
0.1
20
I
SHDN
Shutdown Supply Current
UNITS
MIN
TYP
MAX
SYMBOL
PARAMETER
mA
High-gain,
low-linearity
paging modes
LOX2 = low
LOX2 = high
PCS band
(MAX2322)
15
19.5
19
25
Cellular band (MAX2324)
15
19.5
I
CC
Low-gain,
high-linearity
modes
LOX2 = low
LOX2 = high
PCS band
(MAX2322)
17
21.5
21
26
Cellular band (MAX2324)
17
21.5
Operating Supply Current
(Note 1)
Additional current for BUFFEN = high
mA
5
7.5
I
LOBUF
LO Buffer Supply Current
MAX2324 only
MAX2324 only, V
MODEOUT
= 2.4V
MAX2324 only
MAX2324 only
A
-100
I
OL
Digital Output Current Low
A
30
I
OH
Digital Output Current High
V
0.4
V
OL
Digital Output Logic Low
V
1.7
V
OH
Digital Output Logic High
FM mode
(Note 1)
14.5
18.5
CONDITIONS
A
-35
I
IL
Digital Input Current Low
A
5
I
IH
Digital Input Current High
V
0.6
V
IL
Digital Input Logic Low
V
+2.7
+3.6
V
CC
Supply Voltage
V
2.0
V
IH
Digital Input Logic High
A
0.1
20
I
SHDN
Shutdown Supply Current
UNITS
MIN
TYP
MAX
SYMBOL
PARAMETER
15
19.5
PCS band
High-gain mode
mA
15
19.5
I
CC
Operating Supply Current
(Note 1)
Cellular band
Additional current for BUFFEN = high
mA
5
7.5
I
LOBUF
LO Buffer Supply Current
MAX2320/21/22/24/26/27
Adjustable, High-Linearity,
SiGe Dual-Band LNA/Mixer ICs
4
_______________________________________________________________________________________
AC ELECTRICAL CHARACTERISTICS--MAX2320/MAX2321/MAX2326
(MAX232_ EV kit, V
CC
= +2.75V, f
LNAINH
= f
MIXINH
= 1960MHz, f
LNAINL
= f
MIXINL
= 881MHz, f
LOLIN
= 1091MHz (digital mode), f
LOLIN
=
991MHz (FM mode), f
LOHIN
= 1750MHz (MAX2320, MAX2322 with LOX2 = low, MAX2326 with BAND = low, MAX2327), f
LLOHIN
=
1085MHz (MAX2321 with BAND = low, MAX2322 with LOX2 = high), f
LOHIN
= 1091MHz (MAX2321 with BAND = high), f
LOHIN
=
2182MHz (MAX2326 with BAND = high), LO input power = -7dBm (MAX2320/MAX2326), 50
system, T
A
= +25
C, unless otherwise
noted.) (Note 2)
PARAMETER
SYMBOL
CONDITIONS
MIN
-3
TYP
+3
MAX
UNITS
Low-Band RF
Frequency Range
(Note 3)
800
1000
MHz
High-Band RF
Frequency Range
(Note 3)
1800
2500
MHz
Low-Band LO
Frequency Range
(Note 3)
700
1150
MHz
High-Band LO
Frequency Range
(Note 3)
1600
2300
MHz
IF Frequency Range
(Note 3)
50
400
MHz
LNA PERFORMANCE
HIGH-GAIN, HIGH-LINEARITY MODES (Note 1)
PCS
13
14.5
16
T
A
= +25
C
Cellular
14
15
16
PCS
11.5
14.5
17
Gain (Note 4)
G
T
A
= -40
C to
+85
C
Cellular
13
15
16.5
dB
PCS
0.5
Gain Variation Over
Temperature
Relative to +25
C
T
A
= -40
C to
+85
C
Cellular
0.5
dB
PCS
1.8
2
2.1
Noise Figure
(Note 5)
NF
Cellular
1.3
1.4
1.5
dB
PCS
7
+8
Input Third-Order
Intercept (Notes 5, 6)
IIP3
T
A
= T
MIN
to T
MAX
Cellular
6
+8
dBm
PCS
-11
-10
Input 1dB Compression
P
OUT
1dB
T
A
= T
MIN
to T
MAX
Cellular
-11
-10
dBm
HIGH-GAIN, LOW-LINEARITY PAGING MODES AND FM MODE (Note 1)
PCS
13.5
Gain (Note 4)
G
Cellular
14.5
dB
PCS
0.5
Gain Variation Over
Temperature
Relative to +25
C
T
A
= -40
C
to +85
C
Cellular
0.5
dB
PCS
1.9
2.1
2.2
Noise Figure
(Note 5)
Cellular
1.4
1.5
1.6
dB
MAX2320/21/22/24/26/27
Adjustable, High-Linearity,
SiGe Dual-Band LNA/Mixer ICs
_______________________________________________________________________________________
5
AC ELECTRICAL CHARACTERISTICS (continued)
(MAX232_ EV kit, V
CC
= +2.75V, f
LNAINH
= f
MIXINH
= 1960MHz, f
LNAINL
= f
MIXINL
= 881MHz, f
LOLIN
= 1091MHz (digital mode), f
LOLIN
=
991MHz (FM mode), f
LOHIN
= 1750MHz (MAX2320, MAX2322 with LOX2 = low, MAX2326 with BAND = low, MAX2327), f
LLOHIN
=
1085MHz (MAX2321 with BAND = low, MAX2322 with LOX2 = high), f
LOHIN
= 1091MHz (MAX2321 with BAND = high), f
LOHIN
=
2182MHz (MAX2326 with BAND = high), LO input power = -7dBm (MAX2320/MAX2326), 50
system, T
A
= +25
C, unless otherwise
noted.) (Note 2)
PARAMETER
SYMBOL
CONDITIONS
MIN
-3
TYP
+3
MAX
UNITS
PCS
+6.5
Input Third-Order
Intercept (Notes 5, 6)
Cellular
+6
dBm
LOW-GAIN, HIGH-LINEARITY MODES (Note 1)
PCS
-2
Gain (Note 4)
G
Cellular
-1.5
dB
PCS
0.5
Gain Variation Over
Temperature
Relative to +25
C
T
A
= -40
C to
+85
C
Cellular
0.5
dB
PCS
5
5.5
6
Noise Figure (Note 5)
NF
Cellular
4
4.25
4.5
dB
PCS
+10.5
+11.5
+12.5
Input Third-Order
Intercept (Notes 5, 6)
IIP3
Cellular
+11.5
+12.5
+13.5
dBm
MIXER PERFORMANCE
HIGH-GAIN, HIGH-LINEARITY, AND LOW-GAIN MODES (Note 1)
Without doubler
11
11.8
12.5
13.2
14
T
A
= +25
C, PCS
With doubler
10.5
11.1
12
12.9
13.5
Without doubler
10
10.8
12.5
14.3
15.3
T
A
= -40
C to
+85
C, PCS
With doubler
9.6
10.4
12
13.1
14.3
T
A
= +25
C, cellular
12
127
13.4
14.0
14.7
Gain (Note 4)
G
T
A
= -40
C to +85C, cellular
11.3
11.9
13.4
15.5
16.5
dB
PCS
1
Gain Variation Over
Temperature Relative to
+25
C (Note 5)
T
A
= -40
C to
+85
C
Cellular
1
dB
Without doubler
7.5
7.8
8
PCS
With doubler
11
12.3
13.5
Without divider
7.5
8.1
8.5
Noise Figure
NF
Cellular
With divider
7.8
8.4
8.8
dB
Without doubler
1.8
2.4
+4
PCS,
T
A
= T
MIN
to T
MAX
With doubler
1.4
2.8
+4.7
Input Third-Order
Intercept (Notes 5, 6)
IIP3
Cellular,
T
A
= T
MIN
to T
MAX
1
1.8
3.2
dBm
PCS
-11
-10
Input dB Compression
Cellular
T
A
= T
MIN
to T
MAX
-12
-10.7
dBm
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