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MAX9986AETP+MAXIMN/a248avaiSiGe High-Linearity, 815MHz to 1000MHz Downconversion Mixer with LO Buffer/Switch
MAX9986AETP+ |MAX9986AETPMAXINN/a3389avaiSiGe High-Linearity, 815MHz to 1000MHz Downconversion Mixer with LO Buffer/Switch
MAX9986AETP+T |MAX9986AETPTMAXIMN/a1711avaiSiGe High-Linearity, 815MHz to 1000MHz Downconversion Mixer with LO Buffer/Switch


MAX9986AETP+ ,SiGe High-Linearity, 815MHz to 1000MHz Downconversion Mixer with LO Buffer/SwitchFeaturesThe MAX9986A high-linearity downconversion mixer ♦ 815MHz to 1000MHz RF Frequency Rangeprov ..
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MAX9986AETP+-MAX9986AETP+T
SiGe High-Linearity, 815MHz to 1000MHz Downconversion Mixer with LO Buffer/Switch
General Description
The MAX9986A high-linearity downconversion mixer
provides 8.2dB gain, +25dBm IIP3, and 10dB NF for
815MHz to 1000MHz base-station receiver applica-
tions. With a 960MHz to 1180MHz LO frequency range,
this particular mixer is ideal for high-side LO injection
receiver architectures. Low-side LO injection is sup-
ported by the MAX9984, which is pin-for-pin and func-
tionally compatible with the MAX9986A.
In addition to offering excellent linearity and noise perfor-
mance, the MAX9986A 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 MAX9986A requires a nominal LO drive of 0dBm,
and supply current is guaranteed to be below 250mA.
The MAX9986A is a derivative version of the MAX9986
with improved large-signal blocking performance. The
MAX9984/MAX9986/MAX9986A are pin compatible with
the MAX9994/MAX9996 1700MHz to 3000MHz mixers,
making this entire family of downconverters ideal for
applications where a common PC board layout is used
for both frequency bands. The MAX9986A is also func-
tionally compatible with the MAX9993.
The MAX9986A 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 WCDMA Base Stations
GSM 850/GSM 900 2G and 2.5G EDGE Base
Stations
cdmaOne™ and cdma2000®Base Stations
iDEN®Base Stations
Predistortion Receivers
Fixed Broadband Wireless Access
Wireless Local Loops
Private Mobile Radios
Military Systems
Microwave Links
Digital and Spread-Spectrum Communication
Systems
Features
815MHz to 1000MHz RF Frequency Range960MHz to 1180MHz LO Frequency Range
(MAX9986A/MAX9986)
570MHz to 850MHz LO Frequency Range
(MAX9984)
50MHz to 250MHz IF Frequency Range8.2dB Conversion Gain+25dBm Input IP3+14.8dBm Input 1dB Compression Point10dB Noise Figure69dBc 2LO - 2RF Spurious Rejection at
PRF= -10dBm
Integrated LO BufferIntegrated RF and LO Baluns for Single-Ended
Inputs
Low -3dBm to +3dBm LO DriveBuilt-In SPDT LO Switch with 49dB LO1 to LO2
Isolation and 50ns Switching Time
Pin Compatible with MAX9994/MAX9996 1700MHz
to 3000MHz Mixers
Functionally Compatible with MAX9993External Current-Setting Resistors Provide Option
for Operating Mixer in Reduced Power/Reduced
Performance Mode
Lead-Free Package Available
MAX9986A
SiGe High-Linearity, 815MHz to 1000MHz
Downconversion Mixer with LO Buffer/Switch
Pin Configuration/Functional Diagram and Typical
Application Circuit appear at end of data sheet.

19-3906; Rev 0; 1/06
EVALUATION KIT
AVAILABLE
Ordering Information

*EP = Exposed paddle.
+ = Lead free.
T = Tape-and-reel.
PARTTEMP RANGEPIN-PACKAGEPKG
CODE

MAX9986AETP- 40° C to + 85° C 20 Thi n QFN - E P *
5m m × 5m m T2055- 3
MAX9986AETP-T- 40° C to + 85° C 20 Thi n QFN - E P *
5m m × 5m m T2055- 3
MAX9986AETP+- 40° C to + 85° C 20 Thi n QFN - E P *
5m m × 5m m T2055- 3AX 9986AE TP + T- 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.
MAX9986A
SiGe High-Linearity, 815MHz to 1000MHz
Downconversion Mixer with LO Buffer/Switch
ABSOLUTE MAXIMUM RATINGS
DC ELECTRICAL CHARACTERISTICS

(MAX9986A Typical Application Circuit, VCC= +4.75V to +5.25V, no RF signal applied, IF+ and IF- outputs pulled up to VCCthrough
inductive chokes, R1= 953Ω, R2= 619Ω, TC= -40°C to +85°C, unless otherwise noted. Typical values are at VCC= +5V, TC=
+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.
VCCto GND...........................................................-0.3V to +5.5V
IF+, IF-, LOBIAS, LOSEL, IFBIAS to GND...-0.3V to (VCC+ 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(TA= +70°C)
20-Pin Thin QFN-EP (derate 26.3mW/°C above +70°C)...........2.1W
θJA.................................................................................+38°C/W
θJC.................................................................................+13°C/W
Operating Temperature Range (Note A)....TC= -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:
TCis the temperature on the exposed paddle of the package.
PARAMETERSYMBOLCONDITIONSMINTYPMAXUNITS

Supply VoltageVCC4.755.005.25V
Supply CurrentICC213250mA
LO_SEL Input-Logic LowVIL0.8V
LO_SEL Input-Logic HighVIH2V
AC ELECTRICAL CHARACTERISTICS

(MAX9986A Typical Application Circuit, VCC= +4.75V to +5.25V, RF and LO ports are driven from 50Ωsources, PLO= -3dBm to
+3dBm, PRF= -5dBm, fRF= 815MHz to 1000MHz, fLO= 960MHz to 1180MHz, fIF= 160MHz, fLO> fRF, TC= -40°C to +85°C, unless
otherwise noted. Typical values are at VCC= +5V, PRF = -5dBm, PLO= 0dBm, fRF= 910MHz, fLO= 1070MHz, fIF= 160MHz, TC=
+25°C, unless otherwise noted.) (Note 1)
PARAMETERSYMBOLCONDITIONSMINTYPMAXUNITS

RF Frequency RangefRF(Note 2)8151000MHz
(Note 2)9601180LO Frequency RangefLOMAX9984570850MHz
IF Frequency RangefIF(Note 2)50250MHz
Conversion GainGCTC = +25°C7.28.29.3dB
Gain Variation Over TemperatureTC = -40°C to +85°C-0.009dB/°C
Conversion Gain Flatness
Fl atness over any one of thr ee fr equency b and s:
fRF = 824MHz to 849MHz
fRF = 869MHz to 894MHz
fRF = 880MHz to 915MHz
±0.15dB
Input Compression PointP1dB(Note 3)14.8dBm
Input Third-Order Intercept PointIIP3
Two tones:
fRF1 = 910MHz, fRF2 = 911MHz,
PRF = -5dBm/tone, fLO = 1070MHz,
PLO = 0dBm, TA = +25°C25dBm
TC = +25°C to -40°C-1.8Input IP3 Variation Over
TemperatureTC = +25°C to +85°C+0.7dB
MAX9986A
SiGe High-Linearity, 815MHz to 1000MHz
Downconversion Mixer with LO Buffer/Switch
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:
Compression point characterized. It is advisable not to operate continuously the mixer RF input above +12dBm.
Note 4:
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.
Note 5:
Guaranteed by design and characterization.
AC ELECTRICAL CHARACTERISTICS (continued)

(MAX9986A Typical Application Circuit, VCC= +4.75V to +5.25V, RF and LO ports are driven from 50Ωsources, PLO= -3dBm to
+3dBm, PRF= -5dBm, fRF= 815MHz to 1000MHz, fLO= 960MHz to 1180MHz, fIF= 160MHz, fLO> fRF, TC= -40°C to +85°C, unless
otherwise noted. Typical values are at VCC= +5V, PRF = -5dBm, PLO= 0dBm, fRF= 910MHz, fLO= 1070MHz, fIF= 160MHz, TC=
+25°C, unless otherwise noted.) (Note 1)
PARAMETERSYMBOLCONDITIONSMINTYPMAXUNITS

Noise FigureNFSingle sideband, fIF = 190MHz10dBB LOC K E R = 8d Bm 20
Noise Figure Under-Blocking
fR F = 900M H z ( no si g nal )
fL O = 1090M H z
fB LOC K E R = 981M H z
fI F = 190M H zN ote 4) B LOC K E R = 11d Bm 23B LOC K E R = 8d Bm 0.18Small-Signal Compression
Under-Blocking Condition
PFUNDAMENTAL = -5dBm
fF U N D A M E N TA L = 910M H z
fB LOC K E R = 911M H zP B LOC K E R = 11d Bm 0.4
LO Drive-3+3dBm
PRF = -10dBm692 x 22LO - 2RFPRF = -5dBm64
PRF = -10dBm88Spurious Response at IF
3 x 33LO - 3RFPRF = -5dBm78
dBc
LO2 selected4249LO1-to-LO2 IsolationPLO = +3dBm
TC = +25°C (Note 5)LO1 selected4250dB
LO Leakage at RF PortPLO = +3dBm-45dBm
LO Leakage at IF PortPLO = +3dBm-33dBm
RF-to-IF Isolation54dB
LO Switching Time50% of LOSEL to IF settled to within 2°50ns
RF Port Return Loss20dB
LO1/2 port selected,
LO2/1 and IF terminated22
LO Port Return Loss
LO1/2 port unselected,
LO2/1 and IF terminated34
IF Port Return LossLO driven at 0dBm, RF terminated into 50Ω,
differential 200Ω22dB
Typical Operating Characteristics
(MAX9986A Typical Application Circuit, VCC= +5.0V, PLO= 0dBm, PRF= -5dBm, fLO> fRF, fIF= 160MHz, unless otherwise noted.)
CONVERSION GAIN vs. RF FREQUENCY

MAX9986A toc01
RF FREQUENCY (MHz)
CONVERSION GAIN (dB)
TC = -40°C
TC = -25°CTC = +25°C
TC = +85°C
CONVERSION GAIN vs. RF FREQUENCY

MAX9986A toc02
RF FREQUENCY (MHz)
CONVERSION GAIN (dB)
PLO = -3dBm, 0dBm, +3dBm
CONVERSION GAIN vs. RF FREQUENCY

MAX9986A toc03
RF FREQUENCY (MHz)
CONVERSION GAIN (dB)
VCC = 4.75V, 5.0V, 5.25V
INPUT IP3 vs. RF FREQUENCY

MAX9986A toc04
RF FREQUENCY (MHz)
INPUT IP3 (dBm)
TC = -40°C
TC = +25°CTC = +85°C
TC = -25°C
INPUT IP3 vs. RF FREQUENCY

MAX9986A toc05
RF FREQUENCY (MHz)
INPUT IP3 (dBm)
PLO = -3dBm, 0dBm, +3dBm
INPUT IP3 vs. RF FREQUENCY

MAX9986A toc06
RF FREQUENCY (MHz)
INPUT IP3 (dBm)
VCC = 4.75V
VCC = 5.25VVCC = 5.0V
NOISE FIGURE vs. RF FREQUENCY

MAX9986A toc07
RF FREQUENCY (MHz)
NOISE FIGURE (dB)
TC = -40°CTC = -25°C
TC = +25°C
IF = 190MHz
TC = +85°C
NOISE FIGURE vs. RF FREQUENCY

MAX9986A toc08
RF FREQUENCY (MHz)
NOISE FIGURE (dB)
PLO = +3dBm
PLO = -3dBm, 0dBmIF = 190MHz
NOISE FIGURE vs. RF FREQUENCY

MAX9986A toc09
RF FREQUENCY (MHz)
NOISE FIGURE (dB)
VCC = 5.0V
VCC = 4.75V
VCC = 5.25VIF = 190MHz
MAX9986A
SiGe High-Linearity, 815MHz to 1000MHz
Downconversion Mixer with LO Buffer/Switch
2LO - 2RF RESPONSE vs. RF FREQUENCY
MAX9986A toc10
FUNDAMENTAL RF FREQUENCY (MHz)
2LO - 2RF RESPONSE (dBc)
TC = +85°C
TC = -25°C
PRF = -5dBm
TC = -40°C
TC = +25°C
2LO - 2RF RESPONSE vs. RF FREQUENCY

MAX9986A toc11
FUNDAMENTAL RF FREQUENCY (MHz)
2LO - 2RF RESPONSE (dBc)
PLO = 0dBm
PRF = -5dBm
PLO = +3dBm
PLO = -3dBm
2LO - 2RF RESPONSE vs. RF FREQUENCY

MAX9986A toc12
FUNDAMENTAL RF FREQUENCY (MHz)
2LO - 2RF RESPONSE (dBc)
VCC = 5.25V
PRF = -5dBm
VCC = 4.75V
VCC = 5.0V
3LO - 3RF RESPONSE vs. RF FREQUENCY

MAX9986A toc13
FUNDAMENTAL RF FREQUENCY (MHz)
3LO - 3RF RESPONSE (dBc)
TC = -25°C
TC = +85°CPRF = -5dBm
TC = -40°CTC = +25°C
3LO - 3RF RESPONSE vs. RF FREQUENCY

MAX9986A toc14
FUNDAMENTAL RF FREQUENCY (MHz)
3LO - 3RF RESPONSE (dBc)
PLO = 0dBm, +3dBm
PRF = -5dBm
PLO = -3dBm
3LO - 3RF RESPONSE vs. RF FREQUENCY

MAX9986A toc15
FUNDAMENTAL RF FREQUENCY (MHz)
3LO - 3RF RESPONSE (dBc)
VCC = 5.25V
VCC = 5.0V
PRF = -5dBm
VCC = 4.75V
INPUT P1dB vs. RF FREQUENCY

MAX9986A toc16
RF FREQUENCY (MHz)
INPUT P
1dB
(dBm)
TC = +85°C
TC = +25°C
TC = -25°C
TC = -40°C
INPUT P1dB vs. RF FREQUENCY

MAX9986A toc17
RF FREQUENCY (MHz)
INPUT P
1dB
(dBm)
PLO = -3dBm, 0dBm, +3dBm
INPUT P1dB vs. RF FREQUENCY

MAX9986A toc18
RF FREQUENCY (MHz)
INPUT P
1dB
(dBm)
VCC = 4.75V
VCC = 5.25V
VCC = 5.0V
Typical Operating Characteristics (continued)

(MAX9986A Typical Application Circuit, VCC= +5.0V, PLO= 0dBm, PRF= -5dBm, fLO> fRF, fIF= 160MHz, unless otherwise noted.)
MAX9986A
SiGe High-Linearity, 815MHz to 1000MHz
Downconversion Mixer with LO Buffer/Switch
Typical Operating Characteristics (continued)
(MAX9986A Typical Application Circuit, VCC= +5.0V, PLO= 0dBm, PRF= -5dBm, fLO> fRF, fIF= 160MHz, unless otherwise noted.)
LO SWITCH ISOLATION
vs. LO FREQUENCY

MAX9986A toc20
LO FREQUENCY (MHz)
LO SWITCH ISOLATION (dB)
PLO = -3dBm, 0dBm
PLO = +3dBm
LO SWITCH ISOLATION
vs. LO FREQUENCY

MAX9986A toc19
LO FREQUENCY (MHz)
LO SWITCH ISOLATION (dB)
TC = -40°C, -25°C
TC = +85°CTC = +25°C
LO SWITCH ISOLATION
vs. LO FREQUENCY

MAX9986A toc21
LO FREQUENCY (MHz)
LO SWITCH ISOLATION (dB)
VCC = 4.75V, 5.0V, 5.25V
LO LEAKAGE AT IF PORT
vs. LO FREQUENCY

MAX9986A toc22
LO FREQUENCY (MHz)
LO LEAKAGE AT IF PORT (dBm)
TC = -25°CTC = -40°C
TC = +25°CTC = +85°C
LO LEAKAGE AT IF PORT
vs. LO FREQUENCY

MAX9986A toc23
LO FREQUENCY (MHz)
LO LEAKAGE AT IF PORT (dBm)
PLO = 0dBm
PLO = +3dBm
PLO = -3dBm
LO LEAKAGE AT IF PORT
vs. LO FREQUENCY

MAX9986A toc24
LO FREQUENCY (MHz)
LO LEAKAGE AT IF PORT (dBm)
VCC = 5.25V
VCC = 5.0VVCC = 4.75V
LO LEAKAGE AT RF PORT
vs. LO FREQUENCY

MAX9986A toc25
LO FREQUENCY (MHz)
LO LEAKAGE AT RF PORT (dBm)
TC = +25°C
TC = -40°C, -25°C
TC = -40°C
TC = +85°C
LO LEAKAGE AT RF PORT
vs. LO FREQUENCY

MAX9986A toc26
LO FREQUENCY (MHz)
LO LEAKAGE AT RF PORT (dBm)
PLO = +3dBmPLO = 0dBm
PLO = -3dBm
LO LEAKAGE AT RF PORT
vs. LO FREQUENCY

MAX9986A toc27
LO FREQUENCY (MHz)
LO LEAKAGE AT RF PORT (dBm)
VCC = 5.25V
VCC = 4.75V
VCC = 5.0V
MAX9986A
SiGe High-Linearity, 815MHz to 1000MHz
Downconversion Mixer with LO Buffer/Switch
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