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.
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 injection, refer to the MAX2031 data sheet.
In addition to offering excellent linearity and noise performance, the MAX2029 also yields a high level of component 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 upconverters 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.
Applications
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/ReducedPerformance Mode
♦ Lead-Free Package Available
MAX2029
High-Linearity, 815MHz to 1000MHz Upconversion/
Downconversion Mixer with LO Buffer/Switch
________________________________________________________________
Maxim Integrated Products
1
19-1017; Rev 0; 10/07
cdma2000 is a registered trademark of Telecommunications
Industry Association.
iDEN is a registered trademark of Motorola, Inc.
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
Ordering Information
T = Tape and reel.
*
EP = Exposed paddle.
+
Denotes lead-free package.
MAX2029
TOP VIEW
4
5
3
2
12
11
13
LOBIAS
LOSEL
GND
14
V
CC
IF+
GND
GND
GND
67
TAP
910
20 19 17 16
GND
GND
V
CC
GND
GND
LO1
V
CC
IF-
8
18
RF
1
15
LO2
V
CC
E.P.
Pin Configuration/
Functional Diagram
PART TEMP RANGE PIN-PACKAGE
M AX 2029E TP /- T- 40°C to + 85° C
M AX 2029E TP + /+ T- 40°C to + 85° C
20 Thi n QFN- E P *
( 5mm x 5m m )
20 Thi n QFN- E P *
( 5mm x 5m m )
PKG
CODE
T2055- 3
T2055- 3
MAX2029
High-Linearity, 815MHz to 1000MHz Upconversion/
Downconversion Mixer with LO Buffer/Switch
2 _______________________________________________________________________________________
ABSOLUTE MAXIMUM RATINGS
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.
VCCto 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
= TC+ (θJCx VCCx ICC). 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
= TA+ (θJAx VCCx ICC). 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. TAis the ambient temperature of the device and PCB.
AC ELECTRICAL CHARACTERISTICS
(
Typical Application Circuit
, C5 = 3.3pF, L1 and C4 not used, VCC= +4.75V to +5.25V, RF and LO ports are driven from 50Ω sources,
P
LO
= -3dBm to +3dBm, PRF= 0dBm, fRF= 815MHz to 1000MHz, fLO= 570MHz to 900MHz, fIF= 90MHz, fLO< fRF, TC= -40°C to
+85°C, unless otherwise noted. Typical values are at V
CC
= +5V, PLO= 0dBm, fRF= 920MHz, fLO= 830MHz, fIF= 90MHz,
T
C
= +25°C, unless otherwise noted.) (Note 1)
*Maximum reliable continuous input power applied to the RF, LO, and IF ports of this device is +15dBm from a 50Ω source.
DC ELECTRICAL CHARACTERISTICS
(
Typical Application Circuit
, VCC= +4.75V to +5.25V, no RF signals applied, TC= -40°C to +85°C. IF+ and IF- are DC grounded through
an IF balun. Typical values are at V
CC
= +5V, TC= +25°C, unless otherwise noted.)
PARAMETER SYMBOL CONDITIONS MIN TYP MAX UNITS
Supply Voltage V
Supply Current I
LOSEL Input Logic-Low V
LOSEL Input Logic-High V
Input Current IIH, I
CC
CC
IL
IH
IL
4.75 5.00 5.25 V
85 100 mA
0.8 V
2V
±0.01 µA
RF Frequency Range f
LO Frequency Range f
IF Frequency Range f
LO Drive P
LO1-to-LO2 Isolation (Note 3)
Maximum LO Leakage at RF Port PLO = +3dBm -17 dBm
Maximum LO Leakage at IF Port
PARAMETER SYMBOL CONDITIONS MIN TYP MAX UNITS
(Note 2) 815 1000 MHz
RF
(Note 2) 570 900 MHz
LO
External IF transformer dependence (Note 2) DC 250 MHz
IF
(Note 2) -3 +3 dBm
LO
LO2 selected, PLO = +3dBm, TC = +25°C,
= 920MHz to 960MHz, fLO = 830MHz to
f
RF
870MHz
LO1 selected, P
= 920MHz to 960MHz, fLO = 830MHz to
f
RF
870MHz
P
= +3dBm, fRF = 920MHz to 960MHz,
LO
= 830MHz to 870MHz (Note 3)
f
LO
= +3dBm, T
LO
= +25°C,
C
48 53
50 56
-29.5 -23 dBm
dB
MAX2029
High-Linearity, 815MHz to 1000MHz Upconversion/
Downconversion Mixer with LO Buffer/Switch
_______________________________________________________________________________________ 3
AC ELECTRICAL CHARACTERISTICS (DOWNCONVERTER OPERATION)
(
Typical Application Circuit
, C5 = 3.3pF, L1 and C4 not used, VCC= +4.75V to +5.25V, RF and LO ports are driven from 50Ω sources,
P
LO
= -3dBm to +3dBm, PRF= 0dBm, fRF= 815MHz to 1000MHz, fLO= 570MHz to 900MHz, fIF= 90MHz, fLO< fRF, TC= -40°C to
+85°C, unless otherwise noted. Typical values are at V
CC
= +5V, PLO= 0dBm, fRF= 920MHz, fLO= 830MHz, fIF= 90MHz,
T
C
= +25°C, unless otherwise noted.) (Note 1)
AC ELECTRICAL CHARACTERISTICS (continued)
(
Typical Application Circuit
, C5 = 3.3pF, L1 and C4 not used, VCC= +4.75V to +5.25V, RF and LO ports are driven from 50Ω sources,
P
LO
= -3dBm to +3dBm, PRF= 0dBm, fRF= 815MHz to 1000MHz, fLO= 570MHz to 900MHz, fIF= 90MHz, fLO< fRF, TC= -40°C to
+85°C, unless otherwise noted. Typical values are at V
CC
= +5V, PLO= 0dBm, fRF= 920MHz, fLO= 830MHz, fIF= 90MHz,
T
C
= +25°C, unless otherwise noted.) (Note 1)
LO Switching Time 50% of LOSEL to IF, settled within 2 degrees 50 ns
Minimum RF-to-IF Isolation
RF Port Return Loss 18 dB
LO Port Return Loss
IF Port Return Loss LO driven at 0dBm, RF terminated into 50Ω 23 dB
PARAMETER SYMBOL CONDITIONS MIN TYP MAX UNITS
f
= 920MHz to 960MHz, fLO = 830MHz to
RF
870MHz (Note 3)
LO1/LO2 port selected, LO2/LO1, RF, and IF
terminated into 50Ω
LO1/LO2 port unselected, LO2/LO1, RF, and
IF terminated into 50Ω
38 47 dB
19
31
Conversion Loss G
Conversion Loss Flatness (Note 3)
Conversion Loss Variation Over
Temperature
Input Compression Point P
Input Third-Order Intercept Point IIP3
Input IP3 Variation Over
Temperature
Output Third-Order Intercept Point OIP3
Spurious Response at IF (Note 3)
Noise Figure NF Single sideband 6.7 dB
Noise Figure Under Blocking
(Note 5)
PARAMETER SYMBOL CONDITIONS MIN TYP MAX UNITS
C
Flatness over any one of three frequency
bands (f
f
RF
f
RF
f
RF
f
RF
TC = +25°C to -40°C -0.28
T
C
(Note 4) 27 dBm
1dB
f
RF1
P
RF
(Note 3)
IIP3
2 x 2
3 x 3 3RF - 3LO, P
TC = +25°C to -40°C -0.6
T
C
f
RF1
0dBm/tone, P
(Note 3)
2RF - 2LO, P
960MHz (f
T
C
P
BLOCKER
P
BLOCKER
= 90MHz):
IF
= 827MHz to 849MHz
= 869MHz to 894MHz
= 880MHz to 915MHz
= 920MHz to 960MHz ±0.4
= +25°C to +85°C 0.35
= 920MHz, f
= 0dBm/tone, PLO = 0dBm, TC = +25°C
= +25°C to +85°C 0.4
= 920MHz, f
LO
= +25°C
= +8dBm 15
= 921MHz,
RF2
= 921MHz, PRF =
RF2
= 0dBm, TC = +25°C
LO
= -10dBm, fRF = 920MHz to
RF
= 830MHz to 870MHz),
= -10dBm 96
RF
= +12dBm 19
33 36.5 dBm
26 30 dBm
62 72
6.5 dB
±0.2
dB
dB
dB
dB
dBc
dB
MAX2029
High-Linearity, 815MHz to 1000MHz Upconversion/
Downconversion Mixer with LO Buffer/Switch
4 _______________________________________________________________________________________
Note 1: All limits include external component losses. Output measurements are taken at IF or RF port of the
Typical Application Circuit
.
Note 2: Operation outside this range is possible, but with degraded performance of some parameters.
Note 3: Guaranteed by design.
Note 4: Compression point characterized. It is advisable not to continuously operate the mixer RF/IF inputs above +15dBm.
Note 5: 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.
AC ELECTRICAL CHARACTERISTICS (UPCONVERTER OPERATION)
(
Typical Application Circuit
, L1 = 4.7nH, C4 = 4.7pF, C5 not used, VCC= +4.75V to +5.25V, RF and LO ports are driven from 50Ω
sources, P
LO
= -3dBm to +3dBm, PIF= 0dBm, fRF= 815MHz to 1000MHz, fLO= 570MHz to 900MHz, fIF= 90MHz, fLO< fRF,
T
C
= -40°C to +85°C, unless otherwise noted. Typical values are at VCC= +5V, PLO= 0dBm, fRF= 920MHz, fLO= 830MHz,
f
IF
= 90MHz, TC= +25°C, unless otherwise noted.) (Note 1)
Conversion Loss G
PARAMETER SYMBOL CONDITIONS MIN TYP MAX UNITS
Conversion Loss Flatness
Conversion Loss Variation Over
Temperature
Input Compression Point P
Input Third-Order Intercept Point IIP3
Input IP3 Variation Over
Temperature
LO ± 2IF Spur 71 dBc
LO ± 3IF Spur 86 dBc
Output Noise Floor P
6dB
±0.3 dB
1dB
IIP3
C
Flatness over any one of four frequency
bands (f
f
RF
f
RF
f
RF
f
RF
TC = +25°C to -40°C -0.4
T
C
(Note 4) 25 dBm
f
IF1
f
RF1
0d Bm /tone, P
TC = +25°C to -40°C -0.6
T
C
OUT
= 90MHz):
IF
= 827MHz to 849MHz
= 869MHz to 894MHz
= 880MHz to 915MHz
= 920MHz to 960MHz
= +25°C to +85°C 0.3
= 90MHz, f
= 920MHz, f
= +25°C to +85°C -0.6
= 0dBm (Note 5) -167 dBm/Hz
= 91MHz (results in
IF2
= 921MHz), PIF =
RF2
= 0d Bm , T
LO
= + 25°C ( N ote 3)
C
34 39 dBm
dB
dB
MAX2029
High-Linearity, 815MHz to 1000MHz Upconversion/
Downconversion Mixer with LO Buffer/Switch
_______________________________________________________________________________________ 5
Typical Operating Characteristics
(
Typical Application Circuit
, C5 = 3.3pF, L1 and C4 not used, VCC= +5.0V, PLO= 0dBm, PRF= 0dBm, fLO< fRF, fIF= 90MHz, unless
otherwise noted.)
Downconverter Curves
4
5
7
6
8
9
CONVERSION LOSS vs. RF FREQUENCY
MAX2029 toc01
RF FREQUENCY (MHz)
CONVERSION LOSS (dB)
800 900850 950 1000
TC = +85°C
TC = +25°C
TC = -40°C
4
5
7
6
8
9
CONVERSION LOSS vs. RF FREQUENCY
MAX2029 toc02
RF FREQUENCY (MHz)
CONVERSION LOSS (dB)
800 900850 950 1000
PLO = -3dBm, 0dBm, +3dBm
4
5
7
6
8
9
CONVERSION LOSS vs. RF FREQUENCY
MAX2029 toc03
RF FREQUENCY (MHz)
CONVERSION LOSS (dB)
800 900850 950 1000
VCC = 4.75V, 5.0V, 5.25V
30
34
32
38
36
40
42
800 900850 950 1000
INPUT IP3 vs. RF FREQUENCY
MAX2029 toc04
RF FREQUENCY (MHz)
INPUT IP3 (dBm)
TC = +85°C
TC = +25°C
TC = -40°C
30
34
32
38
36
40
42
800 900850 950 1000
INPUT IP3 vs. RF FREQUENCY
MAX2029 toc05
RF FREQUENCY (MHz)
INPUT IP3 (dBm)
PLO = -3dBm, 0dBm, +3dBm
30
34
32
38
36
40
42
800 900850 950 1000
INPUT IP3 vs. RF FREQUENCY
MAX2029 toc06
RF FREQUENCY (MHz)
INPUT IP3 (dBm)
VCC = 5.0V
VCC = 5.25V
VCC = 4.75V
5
6
8
7
9
10
NOISE FIGURE vs. RF FREQUENCY
MAX2029 toc07
RF FREQUENCY (MHz)
NOISE FIGURE (dB)
800 900850 950 1000
TC = +85°C
TC = +25°C
TC = -40°C
5
6
8
7
9
10
NOISE FIGURE vs. RF FREQUENCY
MAX2029 toc08
RF FREQUENCY (MHz)
NOISE FIGURE (dB)
800 900850 950 1000
PLO = -3dBm
PLO = 0dBm, +3dBm
5
6
8
7
9
10
NOISE FIGURE vs. RF FREQUENCY
MAX2029 toc09
RF FREQUENCY (MHz)
NOISE FIGURE (dB)
800 900850 950 1000
VCC = 4.75V, 5.0V, 5.25V