WJ Communications, Inc. • Phone: 1-800-WJ1-4401 • FAX: 408-577-6621 • e-mail: sales@wj.com • Web site: www.wj.com April 2002
SME900-17
Product PhotoProduct Features
•RF 820 to 960 MHz
•LO 720 to 940 MHz
•IF 20 to 100 MHz
•
High 3IIP: +29 dBm
•LO Drive: +17 dBm
•No Internal Solder Connections
Low Cost Surface Mount Mixer
Specifications
Guaranteed
Parameter Units Typical +25°C -40° to +70°C
SSB Conversion Loss (Max) dB 6.2 7.2 7.7
Port-to-Port Isolation (Min)
L-R dB 34 27 28
L-I dB 26 20 21
R-I dB 32
3rd Order Input Intercept Point
dBm 29
VSWR
R-Port 1.6:1
L-Port 1.6:1
I-Port 1.1:1
1 dB Conversion Compression (Typ) dBm +14
1. Measured in a 50-ohm system with nominal LO drive of +17 dBm, low side LO, and downconverter application only, unless otherwise specified.
2. Measured at RF = 820 MHz, LO = 750 MHz, IF = 70 MHz, unless otherwise specified.
Absolute Maximum Ratings
Parameter Rating
Operating Temperature -40 to +70°C
Storage Temperature -65 to +100°C
RF Input Power +27 dBm at +25°C
Ordering Information
Part No. Description
SME900-17 Mixer (Available in tape and reel)
SME900-17-PCB Fully Assembled Application Circuit
The Communications Edge™
WJ Communications, Inc. • Phone: 1-800-WJ1-4401 • FAX: 408-577-6621 • e-mail: sales@wj.com • Web site: www.wj.com April 2002
Performance Charts
SME900-17
22
23
24
25
26
27
28
29
14 15 16 17 18 19 20
Intercept Point (dBm)
LO Power (dBm)
25
27
29
31
33
35
820 840 860 880 900 920 940 960
Intercept Point (dBm)
Frequency (MHz)
IIP3 vs. LO Power
IIP3 vs. Frequency
RF1 = 900 MHz
RF2 = 910 MHz
LO = 800 MHz
6.5
6.3
6.1
5.9
5.7
5.5
800 850 900 950 1000
Conversion Loss (dB)
Frequency (MHz)
7.2
7.0
6.8
6.6
6.4
6.2
6.0
4 6 8 10121416
Conversion Loss (dB)
RF Power (dBm)
Conversion Loss vs. Frequency
Conversion Loss vs. RF Power
RF = 900 MHz
LO = 800 MHz
IF = 20 MHz
IF = 70 MHz
Conversion Loss vs. LO Power
6.5
6.3
6.1
5.9
5.7
5.5
14 15 16 17 18 19 20
Conversion Loss (dB)
LO Power (dBm)
Conversion Loss vs. Temperature
RF = 960 MHz
IF = 100 MHz
6.5
6.3
6.1
5.9
5.7
5.5
-40 -20 0 20 40 60 80
Conversion Loss (dB)
Temperature (
°
C)
1.6
1.5
1.4
1.3
1.2
700 750 800 850 900 950 1000
VSWR
Frequency (MHz)
IF VSWR vs. Frequency
LO
RF
VSWR vs. Frequency
1.20
1.15
1.10
1.05
1.00
10 20 30 40 50 60 70 80 90 100
VSWR
Frequency (MHz)
40
35
30
25
700 750 800 850 900 950
Isolation (dB)
Frequency (MHz)
L-R
L-I
IF = 20 MHz
IF = 50 MHz
IF = 70 MHz
Isolation vs. Frequency
R-I
WJ Communications, Inc. • Phone: 1-800-WJ1-4401 • FAX: 408-577-6621 • e-mail: sales@wj.com • Web site: www.wj.com April 2002
SME900-17
Single-Tone IM Products
Test Conditions RF at -10 dBm; LO at +17 dBm
RF harmonics and intermodulation products are referenced
to a desired signal produced by fLO = 831 MHz and
fRF = 881 MHz.
LO harmonics are referenced to the LO drive signal.
Harmonics of fRF
Harmonics of fLO
012345
02135443940
1 25 0 32 14 28 33
265 61 66 74 74 59
3 >80 >80 >80 >80 >80 77
4 >80 >80 >80 >80 >80 >80
5 >80 >80 >80 >80 >80 >80
LO RF LO RF IM Prod
Mult Mult MHz MHz MHz dB
0 1 851 901 901 25
0 2 851 901 1802 65
0 3 851 901 2703 83
0 4 851 901 3604 96
0 5 851 901 4505 96
1 0 831 881 831 21
-1 1 831 881 50 0
1 -2 851 401 49 61
1 -3 851 267 50 82
1 -4 851 199 55 97
-1 5 851 181 54 95
2 0 831 881 1662 35
2 -1 851 1652 50 32
-2 2 826 851 50 66
-2 3 851 584 50 85
-2 4 851 438 50 95
-2 5 851 351 53 96
3 0 831 881 2493 44
-3 1 851 2603 50 14
-3 2 851 1301 49 74
-3 3 851 868 51 81
-3 4 851 651 51 98
-3 5 851 521 52 98
4 0 831 881 3324 39
-4 1 851 3454 50 28
-4 2 851 1727 50 74
-4 3 851 1152 52 84
-4 4 851 864 52 98
-4 5 851 691 51 98
5 0 831 881 4155 40
-5 1 851 4305 50 33
-5 2 851 2152 49 59
-5 3 851 1435 50 77
-5 4 851 1076 49 99
-5 5 851 861 50 95
WJ Communications, Inc. • Phone: 1-800-WJ1-4401 • FAX: 408-577-6621 • e-mail: sales@wj.com • Web site: www.wj.com April 2002
SME900-17
Outline Drawing
Land Pattern
Mounting Configuration
Specifications and information are subject to change without notice.
Caution! ESD sensitive device.