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PDF AD8343 Data sheet ( Hoja de datos )
| Número de pieza | AD8343 | |
| Descripción | DC-to-2.5 GHz High IP3 Active Mixer | |
| Fabricantes | Analog Devices | |
| Logotipo |  |
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Hay una vista previa y un enlace de descarga de AD8343 (archivo pdf) en la parte inferior de esta página. Total 30 Páginas | ||
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FEATURES
High-performance active mixer
Broadband operation to 2.5 GHz
Conversion gain: 7 dB
Input IP3: 16.5 dBm
LO drive: –10 dBm
Noise figure: 14 dB
Input P1dB: 2.8 dBm
Differential LO, IF and RF Ports
50 Ω LO input impedance
Single-supply operation: 5 V @ 50 mA typical
Power-down mode @ 20 μA typical
APPLICATIONS
Cellular base stations
Wireless LAN
Satellite converters
SONET/SDH radio
Radio links
RF instrumentation
GENERAL DESCRIPTION
The AD8343 is a high-performance broadband active mixer.
With wide bandwidth on all ports and very low intermodula-
tion distortion, the AD8343 is well suited for demanding
transmit applications or receive channel applications.
The AD8343 provides a typical conversion gain of 7 dB. The
integrated LO driver supports a 50 Ω differential input imped-
ance with low LO drive level, helping to minimize external
component count.
The open-emitter differential inputs can be interfaced directly
to a differential filter or driven through a balun (transformer)
to provide a balanced drive from a single-ended source.
The open-collector differential outputs can be used to drive a
differential IF signal interface or convert to a single-ended signal
through the use of a matching network or transformer. When
centered on the VPOS supply voltage, the outputs swing ±1 V.
DC-to-2.5 GHz
High IP3 Active Mixer
AD8343
FUNCTIONAL BLOCK DIAGRAM
COMM 1
AD8343
14 COMM
INPP 2
13 OUTP
INPM 3
12 OUTM
DCPL 4
11 COMM
VPOS 5
PWDN 6
BIAS
10 LOIP
9 LOIM
COMM 7
8 COMM
Figure 1.
The LO driver circuitry typically consumes 15 mA of current.
Two external resistors are used to set the mixer core current for
required performance, resulting in a total current of 20 mA to
60 mA. This corresponds to power consumption of 100 mW to
300 mW with a single 5 V supply.
The AD8343 is fabricated on Analog Devices, Inc.’s high-
performance 25 GHz silicon bipolar IC process. The AD8343 is
available in a 14-lead TSSOP package. It operates over a −40°C
to +85°C temperature range. A device-populated evaluation
board is available.
Rev. B
Information furnished by Analog Devices is believed to be accurate and reliable. However, no
responsibility is assumed by Analog Devices for its use, nor for any infringements of patents or other
rights of third parties that may result from its use. Specifications subject to change without notice. No
license is granted by implication or otherwise under any patent or patent rights of Analog Devices.
Trademarksandregisteredtrademarksarethepropertyoftheirrespectiveowners.
One Technology Way, P.O. Box 9106, Norwood, MA 02062-9106, U.S.A.
Tel: 781.329.4700
www.analog.com
Fax: 781.461.3113
©2006 Analog Devices, Inc. All rights reserved.
1 page  
AD8343
TYPICAL AC PERFORMANCE
VS = 5.0 V, TA = 25°C; see Figure 72, Table 6 through Table 8.
Table 2.
Input Frequency (MHz) Output Frequency (MHz)
RECEIVER CHARACTERISTICS
400 70
900 170
1900
170
2400
170
2400
425
TRANSMITTER CHARACTERISTICS
150 900
150 1900
Conversion
Gain (dB)
5.6
3.6
7.1
6.8
5.4
7.5
0.25
SSB Noise
Input 1 dB Compression
Figure (dB) Input IP3 (dBm) Point (dBm)
10.5 20.5
11.4 19.4
14.1 16.5
15.3 14.5
16.2 16.5
3.3
3.6
2.8
2.1
2.2
17.9 18.1
16.0 13.4
1.9
0.8
TYPICAL ISOLATION PERFORMANCE
VS = 5.0 V, TA = 25°C; see Figure 72, Table 6 through Table 8.
Table 3.
Input Frequency (MHz) Output Frequency (MHz)
RECEIVER CHARACTERISTICS
400 70
900 170
1900
170
2400
170
2400
425
TRANSMITTER CHARACTERISTICS
150 900
150 1900
LO to Output
Leakage (dBm)
−40.1
−44.4
−65.6
−66.7
−51.1
−30
−25
2xLO to Output
Leakage (dBm)
−51.0
−35.5
−38.3
−44.4
−49.4
−32
−17
3xLO to Output
Leakage (dBm)
−44.0
<−75.0
−73.3
<−73.7
<−75.0
−62
−65
Input to Output
Leakage (dBm)
−62.4
−56.9
−65.7
−73.7
−92.3
−50
−40
Rev. B | Page 4 of 32
5 Page 
AD8343
fIN = 1900 MHz, fOUT = 170 MHz, fLO = 1730 MHz, see Figure 72, Table 6, and Table 8.
28
26 MEAN: 7.09dB
24
22
20
18
16
14
12
10
8
6
4
2
0
6.75 6.80 6.85 6.90 6.95 7.00 7.05 7.10 7.15 7.20 7.25 7.30
CONVERSION GAIN (dB)
Figure 19. Gain Histogram; fIN = 1900 MHz, fOUT = 170 MHz
10
9
8
7
6
5
4
–40 –20
0 20 40
TEMPERATURE (°C)
60
80
Figure 22. Gain Performance Over Temperature; fIN = 1900 MHz,
fOUT = 170 MHz
45
40 MEAN: 16.54dBm
35
30
25
20
15
10
5
0
14.0 14.5 15.0 15.5 16.0 16.5 17.0 17.5 18.0 18.5
INPUT IP3 (dBm)
Figure 20. Input IP3 Histogram; fIN = 1900 MHz, fOUT = 170 MHz
50
45 MEAN: 2.8dBm
40
35
30
25
20
15
10
5
0
2.60 2.65 2.70 2.75 2.80 2.85 2.90 2.95 3.00 3.05
INPUT 1dB COMPRESSION POINT (dBm)
Figure 21. Input 1 dB Compression Point Histogram; fIN = 1900 MHz,
fOUT = 170 MHz
18
17
16
15
14
13
12
11
10
–40
–20
0
20 40 60 80
TEMPERATURE (°C)
Figure 23. Input IP3 Performance Over Temperature; fIN = 1900 MHz,
fOUT = 170 MHz
5.0
4.5
4.0
3.5
3.0
2.5
2.0
–40
–20
0 20 40
TEMPERATURE (°C)
60
80
Figure 24. Input 1 dB Compression Point Performance Over Temperature;
fIN = 1900 MHz, fOUT = 170 MHz
Rev. B | Page 10 of 32
11 Page | ||
| Páginas | Total 30 Páginas | |
| PDF Descargar | [ Datasheet AD8343.PDF ] | |
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