19-1017; Rev 0; 10/07
High-Linearity, 815MHz to 1000MHz Upconversion/
Downconversion Mixer with LO Buffer/Switch
General Description
The MAX2029 high-linearity passive upconverter or
downconverter mixer is designed to provide +36.5dBm
IIP3, 6.7dB NF, and 6.5dB conversion loss for an 815MHz
to 1000MHz RF frequency range to support GSM/cellular
base-station transmitter or receiver applications. With a
570MHz to 900MHz LO frequency range, this particular
mixer is ideal for low-side LO injection architectures. For a
pin-to-pin-compatible mixer meant for high-side LO injec-
tion, refer to the MAX2031 data sheet.
In addition to offering excellent linearity and noise perfor-
mance, the MAX2029 also yields a high level of compo-
nent integration. This device includes a double-balanced
passive mixer core, a dual-input LO selectable switch,
and an LO buffer. On-chip baluns are also integrated to
allow for a single-ended RF input for downconversion (or
RF output for upconversion), and single-ended LO inputs.
The MAX2029 requires a nominal LO drive of 0dBm, and
supply current is guaranteed to be below 100mA.
The MAX2029 is pin compatible with the MAX2039,
MAX2041, MAX2042, MAX2044 series of 1700MHz to
2200MHz, 2000MHz to 3000MHz, and 3200MHz to
3900MHz mixers, making this family of passive upcon-
verters and downconverters ideal for applications
where a common printed-circuit board (PCB) layout is
used for multiple frequency bands.
The MAX2029 is available in a compact 20-pin thin
QFN package (5mm x 5mm) with an exposed paddle.
Electrical performance is guaranteed over the extended
-40°C to +85°C temperature range.
Features
♦
815MHz to 1000MHz RF Frequency Range
♦
570MHz to 900MHz LO Frequency Range
♦
960MHz to 1180MHz LO Frequency Range
(Refer to the MAX2031 Data Sheet)
♦
DC to 250MHz IF Frequency Range
♦
6dB/6.5dB (Upconverter/Downconverter)
Conversion Loss
♦
36.5dBm/39dBm (Downconverter/Upconverter)
Input IP3
♦
+25dBm/+27dBm (Upconverter/Downconverter)
Input 1dB Compression Point
♦
6.7dB Noise Figure
♦
Integrated LO Buffer
♦
Integrated RF and LO Baluns
♦
Low -3dBm to +3dBm LO Drive
♦
Built-In SPDT LO Switch with 53dB Isolation and
50ns Switching Time
♦
Pin Compatible with the MAX2039/MAX2041
1700MHz to 2200MHz Mixers
♦
External Current-Setting Resistor Provides Option
for Operating Mixer in Reduced-Power/Reduced-
Performance Mode
♦
Lead-Free Package Available
MAX2029
Ordering Information
PART
MAX2029ETP/-T
TEMP RANGE PIN-PACKAGE
-40°C to +85°C
PKG
CODE
20 Thin QFN-EP*
T2055-3
(5mm x 5mm)
20 Thin QFN-EP*
T2055-3
(5mm x 5mm)
Applications
Cellular Band WCDMA
and cdma2000
®
Base
Stations
GSM 850/GSM 900 2G
and 2.5G EDGE Base
Stations
TDMA and Integrated
Digital Enhanced
Network (iDEN
®
) Base
Stations
PHS/PAS Base Stations
WiMAX Base Stations
and Customer Premise
Equipment
Predistortion Receivers
Microwave and Fixed
Broadband Wireless
Access
Wireless Local Loop
Private Mobile Radios
Military Systems
Microwave Links
Digital and Spread-
Spectrum
Communication Systems
MAX2029ETP+/+T -40°C to +85°C
T = Tape and reel.
*EP
= Exposed paddle.
+Denotes
lead-free package.
Pin Configuration/
Functional Diagram
GND
GND
17
TOP VIEW
20
19
18
16
V
CC
RF
TAP
GND
GND
GND
IF+
IF-
1
2
3
4
E.P.
5
15
LO2
V
CC
GND
GND
LO1
MAX2029
14
13
12
11
cdma2000 is a registered trademark of Telecommunications
Industry Association.
iDEN is a registered trademark of Motorola, Inc.
6
V
CC
7
LOBIAS
8
V
CC
9
LOSEL
10
GND
________________________________________________________________
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.
High-Linearity, 815MHz to 1000MHz Upconversion/
Downconversion Mixer with LO Buffer/Switch
MAX2029
ABSOLUTE MAXIMUM RATINGS
V
CC
to GND ...........................................................-0.3V to +5.5V
RF (RF is DC shorted to GND through a balun)..................50mA
LO1, LO2 to GND ..................................................-0.3V to +0.3V
IF+, IF- to GND ...........................................-0.3V to (V
CC
+ 0.3V)
TAP to GND ...........................................................-0.3V to +1.4V
LOSEL to GND ...........................................-0.3V to (V
CC
+ 0.3V)
LOBIAS to GND..........................................-0.3V to (V
CC
+ 0.3V)
RF, LO1, LO2 Input Power* ............................................+20dBm
Continuous Power Dissipation (T
C
= +85°C) (Note A)
20-Pin Thin QFN-EP................................................................5W
θ
JA
(Note B)....................................................................+38°C/W
θ
JC
.................................................................................+13°C/W
Operating Temperature Range (Note C) ....T
C
= -40°C to +85°C
Maximum Junction Temperature .....................................+150°C
Storage Temperature Range .............................-65°C to +150°C
Lead Temperature (soldering, 10s) .................................+300°C
Note A:
Based on junction temperature T
J
= T
C
+ (θ
JC
x V
CC
x I
CC
). This formula can be used when the temperature of the
exposed paddle is known while the device is soldered down to a PCB. See the
Applications Information
section for details.
The junction temperature must not exceed +150°C.
Note B:
Junction temperature T
J
= T
A
+ (θ
JA
x V
CC
x I
CC
). This formula can be used when the ambient temperature of the EV kit
PCB is known. The junction temperature must not exceed +150°C. See the
Applications Information
section for details.
Note C:
T
C
is the temperature on the exposed paddle of the package. T
A
is the ambient temperature of the device and PCB.
*Maximum reliable continuous input power applied to the RF, LO, and IF ports of this device is +15dBm from a 50Ω source.
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
(Typical
Application Circuit,
V
CC
= +4.75V to +5.25V, no RF signals applied, T
C
= -40°C to +85°C. IF+ and IF- are DC grounded through
an IF balun. Typical values are at V
CC
= +5V, T
C
= +25°C, unless otherwise noted.)
PARAMETER
Supply Voltage
Supply Current
LOSEL Input Logic-Low
LOSEL Input Logic-High
Input Current
SYMBOL
V
CC
I
CC
V
IL
V
IH
I
IH
, I
IL
2
±0.01
CONDITIONS
MIN
4.75
TYP
5.00
85
MAX
5.25
100
0.8
UNITS
V
mA
V
V
µA
AC ELECTRICAL CHARACTERISTICS
(Typical
Application Circuit,
C5 = 3.3pF, L1 and C4 not used, V
CC
= +4.75V to +5.25V, RF and LO ports are driven from 50Ω sources,
P
LO
= -3dBm to +3dBm, P
RF
= 0dBm, f
RF
= 815MHz to 1000MHz, f
LO
= 570MHz to 900MHz, f
IF
= 90MHz, f
LO
< f
RF
, T
C
= -40°C to
+85°C, unless otherwise noted. Typical values are at V
CC
= +5V, P
LO
= 0dBm, f
RF
= 920MHz, f
LO
= 830MHz, f
IF
= 90MHz,
T
C
= +25°C, unless otherwise noted.) (Note 1)
PARAMETER
RF Frequency Range
LO Frequency Range
IF Frequency Range
LO Drive
SYMBOL
f
RF
f
LO
f
IF
P
LO
(Note 2)
(Note 2)
External IF transformer dependence (Note 2)
(Note 2)
LO2 selected, P
LO
= +3dBm, T
C
= +25°C,
f
RF
= 920MHz to 960MHz, f
LO
= 830MHz to
870MHz
LO1-to-LO2 Isolation (Note 3)
LO1 selected, P
LO
= +3dBm, T
C
= +25°C,
f
RF
= 920MHz to 960MHz, f
LO
= 830MHz to
870MHz
P
LO
= +3dBm
P
LO
= +3dBm, f
RF
= 920MHz to 960MHz,
f
LO
= 830MHz to 870MHz (Note 3)
CONDITIONS
MIN
815
570
DC
-3
48
53
dB
50
56
-17
-29.5
-23
dBm
dBm
TYP
MAX
1000
900
250
+3
UNITS
MHz
MHz
MHz
dBm
Maximum LO Leakage at RF Port
Maximum LO Leakage at IF Port
2
_______________________________________________________________________________________
High-Linearity, 815MHz to 1000MHz Upconversion/
Downconversion Mixer with LO Buffer/Switch
MAX2029
AC ELECTRICAL CHARACTERISTICS (continued)
(Typical
Application Circuit,
C5 = 3.3pF, L1 and C4 not used, V
CC
= +4.75V to +5.25V, RF and LO ports are driven from 50Ω sources,
P
LO
= -3dBm to +3dBm, P
RF
= 0dBm, f
RF
= 815MHz to 1000MHz, f
LO
= 570MHz to 900MHz, f
IF
= 90MHz, f
LO
< f
RF
, T
C
= -40°C to
+85°C, unless otherwise noted. Typical values are at V
CC
= +5V, P
LO
= 0dBm, f
RF
= 920MHz, f
LO
= 830MHz, f
IF
= 90MHz,
T
C
= +25°C, unless otherwise noted.) (Note 1)
PARAMETER
LO Switching Time
Minimum RF-to-IF Isolation
RF Port Return Loss
LO1/LO2 port selected, LO2/LO1, RF, and IF
terminated into 50Ω
LO1/LO2 port unselected, LO2/LO1, RF, and
IF terminated into 50Ω
LO driven at 0dBm, RF terminated into 50Ω
SYMBOL
CONDITIONS
50% of LOSEL to IF, settled within 2 degrees
f
RF
= 920MHz to 960MHz, f
LO
= 830MHz to
870MHz (Note 3)
38
MIN
TYP
50
47
18
19
dB
31
23
dB
MAX
UNITS
ns
dB
dB
LO Port Return Loss
IF Port Return Loss
AC ELECTRICAL CHARACTERISTICS (DOWNCONVERTER OPERATION)
(Typical
Application Circuit,
C5 = 3.3pF, L1 and C4 not used, V
CC
= +4.75V to +5.25V, RF and LO ports are driven from 50Ω sources,
P
LO
= -3dBm to +3dBm, P
RF
= 0dBm, f
RF
= 815MHz to 1000MHz, f
LO
= 570MHz to 900MHz, f
IF
= 90MHz, f
LO
< f
RF
, T
C
= -40°C to
+85°C, unless otherwise noted. Typical values are at V
CC
= +5V, P
LO
= 0dBm, f
RF
= 920MHz, f
LO
= 830MHz, f
IF
= 90MHz,
T
C
= +25°C, unless otherwise noted.) (Note 1)
PARAMETER
Conversion Loss
SYMBOL
G
C
Flatness over any one of three frequency
bands (f
IF
= 90MHz):
f
RF
= 827MHz to 849MHz
f
RF
= 869MHz to 894MHz
f
RF
= 880MHz to 915MHz
f
RF
= 920MHz to 960MHz
Conversion Loss Variation Over
Temperature
Input Compression Point
Input Third-Order Intercept Point
Input IP3 Variation Over
Temperature
Output Third-Order Intercept Point
P
1dB
IIP3
T
C
= +25°C to -40°C
T
C
= +25°C to +85°C
(Note 4)
f
RF1
= 920MHz, f
RF2
= 921MHz,
P
RF
= 0dBm/tone, P
LO
= 0dBm, T
C
= +25°C
(Note 3)
T
C
= +25°C to -40°C
T
C
= +25°C to +85°C
f
RF1
= 920MHz, f
RF2
= 921MHz, P
RF
=
0dBm/tone, P
LO
= 0dBm, T
C
= +25°C
(Note 3)
2RF - 2LO, P
RF
= -10dBm, f
RF
= 920MHz to
960MHz (f
LO
= 830MHz to 870MHz),
T
C
= +25°C
3RF - 3LO, P
RF
= -10dBm
Single sideband
P
BLOCKER
= +8dBm
P
BLOCKER
= +12dBm
26
33
-0.28
0.35
27
36.5
-0.6
0.4
30
CONDITIONS
MIN
TYP
6.5
MAX
UNITS
dB
Conversion Loss Flatness (Note 3)
±0.2
dB
±0.4
dB
dBm
dBm
IIP3
dB
OIP3
dBm
Spurious Response at IF (Note 3)
2x2
3x3
62
72
96
6.7
15
19
dBc
Noise Figure
Noise Figure Under Blocking
(Note 5)
NF
dB
dB
_______________________________________________________________________________________
3
High-Linearity, 815MHz to 1000MHz Upconversion/
Downconversion Mixer with LO Buffer/Switch
MAX2029
AC ELECTRICAL CHARACTERISTICS (UPCONVERTER OPERATION)
(Typical
Application Circuit,
L1 = 4.7nH, C4 = 4.7pF, C5 not used, V
CC
= +4.75V to +5.25V, RF and LO ports are driven from 50Ω
sources, P
LO
= -3dBm to +3dBm, P
IF
= 0dBm, f
RF
= 815MHz to 1000MHz, f
LO
= 570MHz to 900MHz, f
IF
= 90MHz, f
LO
< f
RF
,
T
C
= -40°C to +85°C, unless otherwise noted. Typical values are at V
CC
= +5V, P
LO
= 0dBm, f
RF
= 920MHz, f
LO
= 830MHz,
f
IF
= 90MHz, T
C
= +25°C, unless otherwise noted.) (Note 1)
PARAMETER
Conversion Loss
SYMBOL
G
C
Flatness over any one of four frequency
bands (f
IF
= 90MHz):
f
RF
= 827MHz to 849MHz
f
RF
= 869MHz to 894MHz
f
RF
= 880MHz to 915MHz
f
RF
= 920MHz to 960MHz
T
C
= +25°C to -40°C
T
C
= +25°C to +85°C
P
1dB
IIP3
(Note 4)
f
IF1
= 90MHz, f
IF2
= 91MHz (results in
f
RF1
= 920MHz, f
RF2
= 921MHz), P
IF
=
0dBm/tone, P
LO
= 0dBm, T
C
= +25°C (Note 3)
T
C
= +25°C to -40°C
T
C
= +25°C to +85°C
34
CONDITIONS
MIN
TYP
6
MAX
UNITS
dB
Conversion Loss Flatness
±0.3
dB
Conversion Loss Variation Over
Temperature
Input Compression Point
Input Third-Order Intercept Point
Input IP3 Variation Over
Temperature
LO ± 2IF Spur
LO ± 3IF Spur
Output Noise Floor
-0.4
0.3
25
39
-0.6
-0.6
71
86
dB
dBm
dBm
IIP3
dB
dBc
dBc
dBm/Hz
P
OUT
= 0dBm (Note 5)
-167
Note 1:
Note 2:
Note 3:
Note 4:
Note 5:
All limits include external component losses. Output measurements are taken at IF or RF port of the
Typical Application Circuit.
Operation outside this range is possible, but with degraded performance of some parameters.
Guaranteed by design.
Compression point characterized. It is advisable not to continuously operate the mixer RF/IF inputs above +15dBm.
Measured with external LO source noise filtered, so its noise floor is -174dBm/Hz at 100MHz offset. This specification reflects the
effects of all SNR degradations in the mixer, including the LO noise as defined in
Maxim Application Note 2021.
4
_______________________________________________________________________________________
High-Linearity, 815MHz to 1000MHz Upconversion/
Downconversion Mixer with LO Buffer/Switch
MAX2029
Typical Operating Characteristics
(Typical
Application Circuit,
C5 = 3.3pF, L1 and C4 not used, V
CC
= +5.0V, P
LO
= 0dBm, P
RF
= 0dBm, f
LO
< f
RF
, f
IF
= 90MHz, unless
otherwise noted.)
Downconverter Curves
CONVERSION LOSS vs. RF FREQUENCY
MAX2029 toc01
CONVERSION LOSS vs. RF FREQUENCY
MAX2029 toc02
CONVERSION LOSS vs. RF FREQUENCY
MAX2029 toc03
9
9
9
8
CONVERSION LOSS (dB)
CONVERSION LOSS (dB)
CONVERSION LOSS (dB)
T
C
= +85°C
8
8
7
7
7
6
T
C
= -40°C
T
C
= +25°C
6
P
LO
= -3dBm, 0dBm, +3dBm
6
V
CC
= 4.75V, 5.0V, 5.25V
5
5
5
4
800
850
900
950
1000
RF FREQUENCY (MHz)
4
800
850
900
950
1000
RF FREQUENCY (MHz)
4
800
850
900
950
1000
RF FREQUENCY (MHz)
INPUT IP3 vs. RF FREQUENCY
MAX2029 toc04
INPUT IP3 vs. RF FREQUENCY
MAX2029 toc05
INPUT IP3 vs. RF FREQUENCY
V
CC
= 5.25V
MAX2029 toc06
42
40
INPUT IP3 (dBm)
38
36
T
C
= -40°C
34
32
30
800
850
900
950
T
C
= +25°C
T
C
= +85°C
42
40
INPUT IP3 (dBm)
38
36
34
32
30
42
40
INPUT IP3 (dBm)
38
36
34
32
30
V
CC
= 4.75V
V
CC
= 5.0V
P
LO
= -3dBm, 0dBm, +3dBm
1000
800
850
900
950
1000
800
850
900
950
1000
RF FREQUENCY (MHz)
RF FREQUENCY (MHz)
RF FREQUENCY (MHz)
NOISE FIGURE vs. RF FREQUENCY
MAX2029 toc07
NOISE FIGURE vs. RF FREQUENCY
MAX2029 toc08
NOISE FIGURE vs. RF FREQUENCY
MAX2029 toc09
10
10
10
9
NOISE FIGURE (dB)
NOISE FIGURE (dB)
P
LO
= -3dBm
8
NOISE FIGURE (dB)
T
C
= +25°C
9
9
V
CC
= 4.75V, 5.0V, 5.25V
T
C
= +85°C
8
8
7
7
7
6
T
C
= -40°C
5
800
850
900
950
1000
RF FREQUENCY (MHz)
6
P
LO
= 0dBm, +3dBm
6
5
800
850
900
950
1000
RF FREQUENCY (MHz)
5
800
850
900
950
1000
RF FREQUENCY (MHz)
_______________________________________________________________________________________
5
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