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MAX9984ETP+

P1-P3P4-P6P7-P9P10-P12P13-P15
General Description
The MAX9984 high-linearity downconversion mixer pro-
vides 8.1dB gain, +25dBm IIP3, and 9.3dB NF for
400MHz to 1000MHz base-station receiver applica-
tions*. With an optimized 570MHz to 850MHz LO fre-
quency range, this particular mixer is ideal for low-side
LO injection receiver architectures in the cellular band.
High-side LO injection is supported by the MAX9986,
which is pin-for-pin and functionally compatible with the
MAX9984.
In addition to offering excellent linearity and noise perfor-
mance, the MAX9984 also yields a high level of compo-
nent integration. This device includes a double-balanced
passive mixer core, an IF amplifier, a dual-input LO selec-
table switch, and an LO buffer. On-chip baluns are also
integrated to allow for single-ended RF and LO inputs.
The MAX9984 requires a nominal LO drive of 0dBm, and
supply current is guaranteed to be below 265mA.
The MAX9984/MAX9986 are pin compatible with the
MAX9994/MAX9996 1700MHz to 2200MHz mixers,
making this entire family of downconverters ideal for
applications where a common PC board layout is used
for both frequency bands. The MAX9984 is also func-
tionally compatible with the MAX9993.
The MAX9984 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
850MHz W-CDMA Base Stations
GSM 850/GSM 900 2G and 2.5G EDGE Base Stations
cdmaOne™ and cdma2000
®
Base Stations
iDEN
®
Base Stations
400MHz to 700MHz OFDM/WiMAX CPE and
Base-Station Equipment
Predistortion Receivers
Fixed Broadband Wireless Access
Wireless Local Loop
Private Mobile Radios
Military Systems
Microwave Links
Digital and Spread-Spectrum Communication Systems
Features
♦ 400MHz to 1000MHz RF Frequency Range*
♦ 325MHz to 850MHz LO Frequency Range*
(MAX9984)
♦ 960MHz to 1180MHz LO Frequency Range
(MAX9986)
♦ 50MHz to 250MHz IF Frequency Range
♦ 8.1dB Conversion Gain
♦ +25dBm Input IP3
♦ +13dBm Input 1dB Compression Point
♦ 9.3dB Noise Figure
♦ 71dBc 2RF-2LO Spurious Rejection at
P
RF
= -10dBm
♦ Integrated LO Buffer
♦ Integrated RF and LO Baluns for Single-Ended
Inputs
♦ Low -3dBm to +3dBm LO Drive
♦ Built-In SPDT LO Switch with 54dB LO1 to LO2
Isolation and 50ns Switching Time
♦ Pin Compatible with MAX9994/MAX9996 1700MHz
to 2200MHz Mixers
♦ Functionally Compatible with MAX9993
♦ External Current-Setting Resistors Provide Option
for Operating Mixer in Reduced Power/Reduced
Performance Mode
♦ Lead-Free Package Available
MAX9984
SiGe High-Linearity, 400MHz to 1000MHz
Downconversion Mixer with LO Buffer/Switch
________________________________________________________________ Maxim Integrated Products 1
Pin Configuration/Functional Diagram and Typical
Application Circuit appear at end of data sheet.
19-3648; Rev 0; 4/05
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.
EVALUATION KIT
AVAILABLE
Ordering Information
*For an RF frequency range below 815MHz (LO frequency below
570MHz), appropriate tuning is required. See Table 2 for details.
**EP = Exposed paddle.
+ = Lead free. D = Dry pack. T = Tape-and-reel.
PART TEMP RANGE PIN-PACKAGE
PKG
CODE
MAX9984ETP - 40° C to + 85° C
20 Thi n QFN - E P **
5m m × 5m m
T2055- 3
MAX9984ETP-T - 40° C to + 85° C
20 Thi n QFN - E P **
5m m × 5m m
T2055- 3
MAX9984ETP+D - 40° C to + 85° C
20 Thi n QFN - E P **
5m m × 5m m
T2055- 3
MAX9984E TP + TD - 40° C to + 85° C
20 Thi n QFN - E P **
5m m × 5m m
T2055- 3
cdma2000 is a registered trademark of the Telecommunications
Industry Association.
cdmaOne is a trademark of CDMA Development Group.
iDEN is a registered trademark of Motorola, Inc.
MAX9984
SiGe High-Linearity, 400MHz to 1000MHz
Downconversion Mixer with LO Buffer/Switch
2 _______________________________________________________________________________________
ABSOLUTE MAXIMUM RATINGS
DC ELECTRICAL CHARACTERISTICS
(MAX9984 Typical Application Circuit, using component values in Table 1, V
CC
= +4.75V to +5.25V, no RF signal applied, IF+ and
IF- outputs pulled up to V
CC
through inductive chokes, R
1
= 953Ω, R
2
= 619Ω, T
C
= -40°C to +85°C, unless otherwise noted. Typical
values are at V
CC
= +5V, T
C
= +25°C, 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 +5.5V
IF+, IF-, LOBIAS, LOSEL, IFBIAS to GND...-0.3V to (V
CC
+ 0.3V)
TAP ........................................................................-0.3V to +1.4V
LO1, LO2, LEXT to GND........................................-0.3V to +0.3V
RF, LO1, LO2 Input Power .............................................+12dBm
RF (RF is DC shorted to GND through a balun) .................50mA
Continuous Power Dissipation (T
A
= +70°C)
20-Pin Thin QFN-EP (derate 26.3mW/°C above +70°C)...........2.1W
θ
JA
.................................................................................+38°C/W
θ
JC
.................................................................................+13°C/W
Operating Temperature Range (Note A) ....T
C
= -40°C to +85°C
Junction Temperature......................................................+150°C
Storage Temperature Range .............................-65°C to +150°C
Lead Temperature (soldering, 10s) .................................+300°C
Note A: T
C
is the temperature on the exposed paddle of the package.
PARAMETER SYMBOL CONDITIONS MIN TYP MAX UNITS
Supply Voltage V
CC
4.75 5.00 5.25 V
Supply Current I
CC
222 265 mA
LO_SEL Input-Logic Low V
IL
0.8 V
LO_SEL Input-Logic High V
IH
2V
AC ELECTRICAL CHARACTERISTICS
(MAX9984 Typical Application Circuit, using component values in Table 1, V
CC
= +4.75V to +5.25V, RF and LO ports are driven from
50Ω sources, P
LO
= -3dBm to +3dBm, P
RF
= -5dBm, f
RF
= 815MHz to 1000MHz, f
LO
= 570MHz to 850MHz, f
IF
= 160MHz, f
RF
> f
LO
,
T
C
= -40°C to +85°C, unless otherwise noted. Typical values are at V
CC
= +5V, P
RF
= -5dBm, P
LO
= 0dBm, f
RF
= 910MHz, f
LO
=
750MHz, f
IF
= 160MHz, T
C
= +25°C, unless otherwise noted.) (Note 1)
PARAMETER SYMBOL CONDITIONS MIN TYP MAX UNITS
(Note 2) 815 1000
RF Frequency Range f
RF
(Notes 2, 3) 400
MHz
(Note 2) 570 850
(Notes 2, 3) 325
LO Frequency Range f
LO
MAX9986 960 1180
MHz
IF Frequency Range f
IF
(Note 2) 50 250 MHz
Conversion Gain G
C
f
RF
= 910MHz, f
LO
= 750MHz, T
C
= +25°C 7.2 8.1 9.2 dB
Gain Variation Over Temperature T
C
= -40°C to +85°C- 0.0079 dB/°C
Conversion Gain Flatness
Fl atness over any one of thr ee fr equency b and s:
f
RF
= 824MHz to 849MHz
f
RF
= 869MHz to 894MHz
f
RF
= 880MHz to 915MHz
±0.25 dB
Input Compression Point P
1dB
(Note 4) 13 dBm
f
LO
= 570MHz to 850MHz, f
IF
= 160MHz,
P
LO
= 0dBm, T
C
= +25°C (Note 5)
19
Input Third-Order Intercept Point IIP3
Two tones:
f
RF1
= 910MHz, f
RF2
= 911MHz,
P
RF
= -5dBm/tone, f
LO
= 750MHz,
P
LO
= 0dBm, T
C
= +25°C
22 25
dBm
MAX9984
SiGe High-Linearity, 400MHz to 1000MHz
Downconversion Mixer with LO Buffer/Switch
_______________________________________________________________________________________ 3
Note 1: All limits include external component losses. Output measurements taken at IF output of the Typical Application Circuit.
Note 2: Operation outside this range is possible, but with degraded performance of some parameters.
Note 3: See Table 2 for component list required for 400MHz to 500MHz operation. For operation from 500MHz to 800MHz, appropriate
tuning is required; please contact the factory for support.
Note 4: Compression point characterized. It is advisable not to operate continuously the mixer RF input above +12dBm.
Note 5: Guaranteed by design and characterization.
Note 6: Measured with external LO source noise filtered so the noise floor is -174dBm/Hz. 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 (continued)
(MAX9984 Typical Application Circuit, using component values in Table 1, V
CC
= +4.75V to +5.25V, RF and LO ports are driven from
50Ω sources, P
LO
= -3dBm to +3dBm, P
RF
= -5dBm, f
RF
= 815MHz to 1000MHz, f
LO
= 570MHz to 850MHz, f
IF
= 160MHz, f
RF
> f
LO
,
T
C
= -40°C to +85°C, unless otherwise noted. Typical values are at V
CC
= +5V, P
RF
= -5dBm, P
LO
= 0dBm, f
RF
= 910MHz, f
LO
=
750MHz, f
IF
= 160MHz, T
C
= +25°C, unless otherwise noted.) (Note 1)
PARAMETER SYMBOL CONDITIONS MIN TYP MAX UNITS
T
C
= +25°C to -40°C -1.5
Input IP3 Variation Over
Temperature
T
C
= +25°C to +85°C +0.8
dB
Noise Figure NF Single sideband, f
IF
= 190MHz 9.3 dB
P
B LOC K E R
=
+ 8d Bm
19
Noise Figure Under-Blocking
f
R F
= 900M H z ( no si g nal )
f
L O
= 1090M H z
f
B LOC K E R
= 981M H z
f
I F
= 190M H z
( N ote 6)
P
B LOC K E R
=
+ 11d Bm
24
dB
P
B LOC K E R
=
+ 8d Bm
0.25
Small-Signal Compression
Under-Blocking Condition
P
FUNDAMENTAL
= -5dBm
f
F U N D A M E N TA L
= 910M H z
f
B LOC K E R
= 911M H z
P
B LOC K E R
=
+ 11d Bm
0.6
dB
LO Drive -3 +3 dBm
P
RF
= -10dBm 71
2 x 2 2RF-2LO
P
RF
= -5dBm 66
P
RF
= -10dBm 87
Spurious Response at IF
3 x 3 3RF-3LO
P
RF
= -5dBm 82
dBc
LO2 selected 47 54
LO1 to LO2 Isolation
P
LO
= +3dBm
T
C
= +25°C (Note 5)
LO1 selected 47 60
dB
LO Leakage at RF Port P
LO
= +3dBm -32 dBm
LO Leakage at IF Port P
LO
= +3dBm -23 dBm
RF-to-IF Isolation P
LO
= +3dBm 54 dB
LO Switching Time 50% of LOSEL to IF settled to within 2° 50 ns
RF Port Return Loss 14 dB
LO1/2 port selected,
LO2/1 and IF terminated
23
LO Port Return Loss
LO1/2 port unselected,
LO2/1 and IF terminated
20
dB
IF Port Return Loss
LO driven at 0dBm, RF terminated into 50Ω,
differential 200Ω
16 dB
P1-P3P4-P6P7-P9P10-P12P13-P15

MAX9984ETP+

Mfr. #:
Buy MAX9984ETP+
Manufacturer:
Maxim Integrated
Description:
Up-Down Converters SiGe 400-1000MHz Downconversion Mixer
Lifecycle:
New from this manufacturer.
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