ETC SPM-1045

Preliminary Data Sheet
Product Description
The Sirenza SPM-1045 is a passive mixer designed for
systems that require high linearity up- and down-conversion. It employs proprietary silicon FETs with proven reliable core-and-wire baluns. It operates efficiently over a
wide range of Local Oscillator powers, with input third
order intercept remaining approximately 15-20 dB above
LO power. This product is packaged in a standard surface
mount module for excellent RF performance.
SPM-1045
High Linearity Passive FET Mixer
Functional Block Diagram
Product Features
IF
RF
•
•
•
LO
Excellent linearity.
Predictable conversion loss vs. LO power.
Usable with a LO power from +10dBm to
+17dBm.
Applications
•
North American Cellular upconverters and
downconverters
Product Specifications: Down-converter
Test Conditions: FLO = 750MHz FIF = 100MHz Frf = 850MHz Plo = 17dBm
Unit
Min.
RF Input Frequency Range
Parameters
Test Conditions
MHz
500
Typ.
LO Frequency
MHz
700
800
IF Output Frequency
MHz
50
500
RF Return Loss
Frf = 850 MHz
dB
7
LO Return Loss
Flo = 750 MHz
dB
12
IF Return Loss
Fif = 100 MHz
dB
Conversion Loss
Frf = 850 MHz
SSB Noise Figure
TOI (Input)
10
7.5
10
7.5
10
Plo=10dBm
dBm
27
Plo=14dBm
dBm
32
Plo=17dBm
dBm
32
P1dB (input)
Plo=17dBm
dBm
20
LO-RF isolation
750MHz
dB
50
LO-IF isolation
750MHz
dB
30
RF-IF isolation
850MHz
dB
30
LO Power
See graphs for performance vs. LO power
dBm
Max.
1000
17
The information provided herein is believed to be reliable at press time. Sirenza Microdevices assumes no responsibility for inaccuracies or ommisions.
Sirenza Microdevices assumes no responsibility for the use of this information, and all such information shall be entirely at the user’s own risk. Prices and specifications are subject to change without
notice. No patent rights or licenses to any of the circuits described herein are implied or granted to any third party. Sirenza Microdevices does not authorize or warrant any Sirenza Microdevices product
for use in life-support devices and/or systems.
Copyright 2002 Sirenza Microdevices, Inc. All worldwide rights reserved.
522 Almanor Ave., Sunnyvale, CA 94085
Phone: (800) SMI-MMIC
1
http://www.sirenza.com
EDS102960 Rev A
Preliminary Data Sheet
SPM-1045 High Linearity Mixer
Product Specifications: Up-converter
Test Conditions: FLO = 750MHz FIF = 100MHz Frf = 850MHz Plo = 17dBm
Unit
Min.
RF Output Frequency Range
Parameters
Test Conditions
MHz
500
Typ.
LO Frequency
MHz
700
800
IF Input Frequency
MHz
50
300
RF Return Loss
Frf = 850 MHz
dB
7
LO Return Loss
Flo = 750 MHz
dB
12
IF Return Loss
Fif = 100 MHz
dB
10
Conversion Loss
TOI (Input)
7.5
Plo=10dBm
dBm
25
Plo=13dBm
dBm
32
Plo=17dBm
dBm
32
P1dB (input)
Plo=17dBm
dBm
20
LO Power
See graphs for performance vs. LO power
dBm
Absolute Maximum Ratings
Parameters
10
17
Caution: ESD Sensitive
Value
Unit
RF Input
+15
dBm
LO Input
+20
dBm
IF Input
Max.
1000
+15
dBm
Operating Temperature
-40 to +85
ºC
Storage Temperature
-65 to +150
ºC
Appropriate precaution in handling, packaging
and testing devices must be observed.
Operation of this device beyond any one of these limits may
cause permanent damage. For reliable continuous operation the
device voltage and current must not exceed the maximum operating values specified in the table on page one.
The SPM-1045 mixer is a MOSFET based high performance mixer designed for high linearity frequency conversion in the
US cellular band. This mixer features a wide latitude in LO power requirements. Conversion loss remains virtually constant
between 10dBm and 17dBm of LO power. Third Order Intercept is approximately proportional to the LO drive. This means
that this mixer can be used to replace a wide variety of mixers requiring a variety of LO powers. The mixer uses baluns on
all three ports, so each port presents a DC short.
The graphs on the following pages illustrate the performance of the SPM-1045 over a variety of operating conditions. In
order to duplicate these performance tests, the following precautions should be observed:
-The mixer should be presented with good return losses at all ports by using isolators or attenuators. This is especially true
of the LO port, because of the poor return loss of this port. If ripple is seen in a frequency sweep, it is likely due to reflections
caused by poor VSWR in a cable leading up to the device.
-The presence of harmonics in the LO can cause changes in TOI.
-Be aware that signals of many different frequencies exist at the output of the mixer, and any one can potentially cause the
spectrum analyzer to generate intermod.
-When measuring TOI, make sure the two generators supplying the RF signal are not interacting, causing intermod themselves.
522 Almanor Ave., Sunnyvale, CA 94085
Phone: (800) SMI-MMIC
2
http://www.sirenza.com
EDS102960 Rev A
Preliminary Data Sheet
SPM-1045 High Linearity Mixer
Conversion Loss vs. Frequency, High Side LO,
Down-converter
Conversion Loss. Vs Frequency, High Side LO
Up-Converter
10
9
17dBm
8
14dBm
10dBm
7
6
500
600
700
800
900
Conversion Loss
Conversion Loss
10
9
17dBm
8
14dBm
10dBm
7
6
500
1000
600
Conversion Loss vs. Frequency, Low Side LO
Down-converter
900
1000
11
9
17dBm
8
14dBm
10dBm
7
6
500
600
700
800
900
Conversion Loss
Conversion Loss
800
Conversion Loss. Vs Frequency, Low Side LO
Up-Converter
10
10
17dBm
9
14dBm
10dBm
8
7
500
1000
600
700
800
900
1000
RF Frequency, MHz
RF Frequency, MHz
Conversion Loss vs. LO Power, Down-converter
LO=750MHz, RF=850MHz
LO=850MHz, RF=750MHz
9
High side LO
8
Low side LO
7
Conversion Loss vs. LO Power, Up-converter
LO=750MHz, IF=100MHz
10
Conversion Loss, dB
10
Conversion Loss
700
RF Frequency, MHz
RF Frequency, MHz
9
High side LO
8
Low side LO
7
6
6
0
5
10
15
20
0
5
10
15
20
LO Power, dBm
LO Power, dBm
These graphs show mixer conversion loss vs. frequency, with both low-side LO excitation (LO frequency below the RF frequency) and high side excitation (LO frequency above the RF frequency). Operation both as a down-converter and an upconverter is shown, with LO powers of 10, 14, and 17dBm. In all cases, the IF frequency is 100MHz.
522 Almanor Ave., Sunnyvale, CA 94085
Phone: (800) SMI-MMIC
3
http://www.sirenza.com
EDS102960 Rev A
Preliminary Data Sheet
SPM-1045 High Linearity Mixer
TOI vs. Frequency, High Side LO
Down-converter
35
35
17dBm
14dBm
25
500
10dBm
600
700
800
900
Input TOI, dBm
Input TOI, dBm
40
30
TOI vs. Frequency, High Side LO
Up-converter
30
17dBm
14dBm
10dBm
25
20
500
1000
600
RF Frequency, MHz
TOI vs. Frequency, Low Side LO
Down-converter
35
17dBm
14dBm
10dBm
30
600
700
800
900
Input TOI, dBm
Input TOI, dBm
900
1000
35
30
17dBm
14dBm
25
10dBm
20
500
1000
600
700
800
900
1000
FR Frequency, MHz
Rf Frequency, MHz
TOI vs. LO Power, Down-converter
LO=750MHz, RF=850MHz (Low side)
LO=850MHz, RF=750MHz (High side)
TOI vs. LO Power, Up-converter
LO=750MHz, RF=850MHz
LO=750MHz, RF=650MHz
40
40
35
35
30
Low side LO
25
High side LO
20
TOI, dBm
TOI, dBm
800
TOI, vs. Frequency, Low Side LO
Up-converter
40
25
500
700
RF Frequency, MHz
High side LO
30
Low side LO
25
20
15
15
0
5
10
LO Power, dBm
15
20
0
5
10
15
LO Power, dBm
20
These graphs show mixer Third Order Intercept (TOI) vs. frequency referenced to the input of the mixer (that is, referenced
to the RF port in the case off a down-converter, or the IF port in the case of an up-converter), with both low-side LO excitation (LO frequency below the RF frequency) and high side excitation (LO frequency above the RF frequency). Operation
both as a down-converter and an up-converter is shown, with LO powers of 10, 14, and 17dBm. In all cases, the IF frequency is 100MHz. The RF power used in measuring third order intercept is +0dBm, except in cases where TOI exceeds
30dBm, in which case input power is increased to make the intermod tones visible above the noise floor.
522 Almanor Ave., Sunnyvale, CA 94085
Phone: (800) SMI-MMIC
4
http://www.sirenza.com
EDS102960 Rev A
Preliminary Data Sheet
SPM-1045 High Linearity Mixer
850
800
Conversion Loss, dB
(Down-converter)
Plo=17dBm
Conversion Loss, dB
850
825 (Up-converter)
800 Plo=17dBm
775
750
725 LO
700 Freq.
9.5-10
675 MHz
9-9.5
650
8.5-9
625
8-8.5
600
575
7.5-8
550
750
LO
700 Freq.
MHz
650
9.5-10
9-9.5
8-8.5
550
7.5-8
1400
7-7.5
1400
1300
1200
1100
900
1000
800
700
RF Freq. MHz
600
7-7.5
500
1300
1200
1100
900
1000
800
700
600
500
8.5-9
600
RF Freq. MHz
850
800
Input Intercept, dBm
(Down-converter)
Plo=17dBm
Input Intercept, dBm
(Up-converter)
800
Plo=17dBm
850
750
750
LO
700 Freq.
MHz
650
LO
700 Freq.
MHz
650
34-36
32-34
30-32
28-30
600
TOI vs. Temperature
14005
1300
1200
1100
1000
900
28-30
26-28
Insertion Loss vs. Temperature
34
9
33
8.5
Insertion Loss
Input TOI, dBm
30-32
50
RF Freq. MHz
RF Freq. MHz
32
31
30
-50
800
700
600
1400
1300
1200
1100
900
1000
800
700
600
500
22-24
500
24-26
32-34
600
26-28
550
34-36
8
7.5
7
-30
-10
10
30
50
70
90
-50
-30
-10
10
30
50
70
90
Temperature
Temperature
The contour graphs show mixer input TOI and conversion loss over a variety of RF and LO frequencies. These contour
graphs can be used to assess the suitability of these mixers over a variety of frequencies of operation. Note that constant IF
frequency curves can be overlaid as diagonal lines. Also shown are graphs of TOI and insertion loss vs. temperature.
These curves were measured down-converter mode, with 750MHz LO, 850MHz RF and 14dBm LO power.
522 Almanor Ave., Sunnyvale, CA 94085
Phone: (800) SMI-MMIC
5
http://www.sirenza.com
EDS102960 Rev A
Preliminary Data Sheet
SPM-1045 High Linearity Mixer
Half IF response
IF=100MHz, PLO=17dBm, PRF=10dBm
90
80
70
60
50
40
30
20
10
0
100
LO-RF
RF-IF
LO-IF
Isolation, dB
Isolation, dB
Isolation
LO Power = 17dBm
80
60
low side
40
high side
20
0
400
0
500
1000
Frequency, MHz
600
1500
Harmonics of LO at IF port
17dBm LO power.
1200
0
-10
-20
2nd Harmonic
-30
3rd Harmonic
-40
Harmonic Level, dBm
Harmonic Level, dBm
1000
Harmonics of LO at RF port
17dBm LO power
0
-50
-10
-20
2nd Harmonic
-30
3rd Harmonic
-40
-50
0
200
400
600
800
1000
0
200
LO Frequency Fundamental, MHz
Reflection Coefficient, dB
500
1000
1500
600
800
1000
IF Port Return Loss
LO=775MHz, 17dBm
0
-2
-4
-6
-8
-10
-12
-14
-16
-18
-20
0
400
LO Frequency
RF Port Return Loss
LO=775MHz, 17dBm
Reflection Coefficient, dB
800
RF Frequency
2000
2500
0
-2
-4
-6
-8
-10
-12
-14
-16
-18
-20
0
RF Frequency, MHz
100
200
300
400
500
600
IF Frequency, MHz
The isolation graph shows port isolation with a 750MHz LO at 17dB.
Half IF response is measured by applying RF signals (10dBm amplitude) 50MHz above or below the LO, and measuring
the level of the undesired IF component at 100MHz.
522 Almanor Ave., Sunnyvale, CA 94085
Phone: (800) SMI-MMIC
6
http://www.sirenza.com
EDS102960 Rev A
Preliminary Data Sheet
SPM-1045 High Linearity Mixer
C onversion Loss C ompression C urves
R F=850MH z , LO=750MH z , D ow n-conversion
C onversion Loss C ompression C urves
R F=850MH z , LO=750MH z , U p-conversion
11
10
10dB m
9
14dB m
17dB m
8
7
Conversion Loss
Conversion Loss
11
10
10dB m
14dB m
9
17dB m
8
7
0
5
10
15
20
0
5
RF P ow e r, dBm
10
15
20
RF P ow e r, dBm
Reflection Coefficient, dB
LO Port Return Loss
LO=2.0GHz, 17dBm
0
-2
-4
-6
-8
-10
-12
-14
-16
-18
-20
500
600
700
800
900
1000
LO Frequency, MHz
Package Dimensions
522 Almanor Ave., Sunnyvale, CA 94085
Part Number Ordering Information
Part Number
Reel Size
Parts per reel
SPM-1045
13”
1000
Phone: (800) SMI-MMIC
7
http://www.sirenza.com
EDS102960 Rev A
Preliminary Data Sheet
SPM-1045 High Linearity Mixer
Demo Test Board Schematic
SPM Evaluation Board
LO
RF
J1
J2
Sirenza
Microdevices
Mixer Eval Bd.
J3
IF
Recommended connectors:
Johnson 142-0701-851 SMA end-launch connectors (or equivalent)
522 Almanor Ave., Sunnyvale, CA 94085
Phone: (800) SMI-MMIC
8
http://www.sirenza.com
EDS102960 Rev A