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PDF ADL5380 Data sheet ( Hoja de datos )
| Número de pieza | ADL5380 | |
| Descripción | 400 MHz to 6 GHz Quadrature Demodulator | |
| Fabricantes | Analog Devices | |
| Logotipo |  |
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FEATURES
Operating RF and LO frequency: 400 MHz to 6 GHz
Input IP3
30 dBm @ 900 MHz
28 dBm @1900 MHz
Input IP2: >65 dBm @ 900 MHz
Input P1dB (IP1dB): 11.6 dBm @ 900 MHz
Noise figure (NF)
10.9 dB @ 900 MHz
11.7 dB @ 1900 MHz
Voltage conversion gain: ~7 dB
Quadrature demodulation accuracy @ 900 MHz
Phase accuracy: ~0.2°
Amplitude balance: ~0.07 dB
Demodulation bandwidth: ~390 MHz
Baseband I/Q drive: 2 V p-p into 200 Ω
Single 5 V supply
APPLICATIONS
Cellular W-CDMA/GSM/LTE
Microwave point-to-(multi)point radios
Broadband wireless and WiMAX
GENERAL DESCRIPTION
The ADL5380 is a broadband quadrature I-Q demodulator that
covers an RF/IF input frequency range from 400 MHz to 6 GHz.
www.DaWtaitShhaeeNt4FU=.c1o0m.9 dB, IP1dB = 11.6 dBm, and IIP3 = 29.7 dBm @
900 MHz, the ADL5380 demodulator offers outstanding dynamic
range suitable for the demanding infrastructure direct-conversion
requirements. The differential RF inputs provide a well-behaved
broadband input impedance of 50 Ω and are best driven from a
1:1 balun for optimum performance.
Excellent demodulation accuracy is achieved with amplitude
and phase balances of ~0.07 dB and ~0.2°, respectively. The
demodulated in-phase (I) and quadrature (Q) differential outputs
are fully buffered and provide a voltage conversion gain of ~7 dB.
The buffered baseband outputs are capable of driving a 2 V p-p
differential signal into 200 Ω.
400 MHz to 6 GHz
Quadrature Demodulator
ADL5380
FUNCTIONAL BLOCK DIAGRAM
ENBL ADJ
BIAS
ADL5380
IHI
RFIN
RFIP
V2I
QUADRATURE
PHASE SPLITTER
ILO
LOIP
LOIN
QHI
Figure 1.
QLO
The fully balanced design minimizes effects from second-order
distortion. The leakage from the LO port to the RF port is
<−50 dBm. Differential dc offsets at the I and Q outputs are
typically <20 mV. Both of these factors contribute to the
excellent IIP2 specification, which is >65 dBm.
The ADL5380 operates off a single 4.75 V to 5.25 V supply. The
supply current is adjustable by placing an external resistor from
the ADJ pin to either the positive supply, VS, (to increase supply
current and improve IIP3) or to ground (which decreases supply
current at the expense of IIP3).
The ADL5380 is fabricated using the Analog Devices, Inc.,
advanced silicon-germanium bipolar process and is available
in a 24-lead exposed paddle LFCSP.
Rev. 0
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
©2009 Analog Devices, Inc. All rights reserved.
1 page  
ABSOLUTE MAXIMUM RATINGS
Table 2.
Parameter
Supply Voltage: VCC1, VCC2, VCC3
LO Input Power
RF Input Power
Internal Maximum Power Dissipation
θJA 1
Maximum Junction Temperature
Operating Temperature Range
Storage Temperature Range
Rating
5.5 V
13 dBm (re: 50 Ω)
15 dBm (re: 50 Ω)
1370 mW
53°C/W
150°C
−40°C to +85°C
−65°C to +125°C
1 Per JDEC standard JESD 51-2. For information on optimizing thermal
impedance, see the Thermal Grounding and Evaluation Board Layout
section.
ADL5380
Stresses above those listed under Absolute Maximum Ratings
may cause permanent damage to the device. This is a stress
rating only; functional operation of the device at these or any
other conditions above those indicated in the operational
section of this specification is not implied. Exposure to absolute
maximum rating conditions for extended periods may affect
device reliability.
ESD CAUTION
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Rev. 0 | Page 5 of 36
5 Page 
ADL5380
MIDBAND OPERATION
RF = 3 GHz to 4 GHz; Johanson Technology 3600BL14M050T balun on LO and RF inputs, 200 Ω from VADJ to VS.
14 20 60
13
12
11 IP1dB
10
9
TA = –40°C
TA = +25°C
TA = +85°C
18 IIP2, Q CHANNEL
16 IIP2, I CHANNEL
14
NOISE FIGURE
12
IP1dB
10
55
50
45
40
35
8
GAIN
7
8 GAIN
6
30
25
6 4 20
IIP3
5 2 15
4
3.0 3.1 3.2 3.3 3.4 3.5 3.6 3.7 3.8 3.9 4.0
LO FREQUENCY (GHz)
Figure 20. Conversion Gain and Input 1 dB Compression Point (IP1dB) vs.
LO Frequency
0 10
–6 –5 –4 –3 –2 –1 0 1 2 3 4 5 6
LO LEVEL (dBm)
Figure 23. Conversion Gain, IP1dB, Noise Figure, IIP3, and IIP2 vs.
LO Level, fLO = 3600 MHz
80
TA = –40°C
TA = +25°C
70 TA = +85°C
60
INPUT IP2
I CHANNEL
Q CHANNEL
18
17
16
15
50
40
INPUT IP3 I AND Q CHANNELS
30
20
14
13
12 TA = –40°C
TA = +25°C
11 TA = +85°C
10
9
10
3.0 3.1 3.2 3.3 3.4 3.5 3.6 3.7 3.8 3.9 4.0
LO FREQUENCY (GHz)
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Figure 21. Input Third-Order Intercept (IIP3) and
Input Second-Order Intercept Point (IIP2) vs. LO Frequency
8
3.0 3.1 3.2 3.3 3.4 3.5 3.6 3.7 3.8 3.9 4.0
LO FREQUENCY (GHz)
Figure 24. Noise Figure vs. LO Frequency
1.0
0.8
0.6
0.4
0.2
0
–0.2
–0.4
–0.6
–0.8
–1.0
3.0
TA = –40°C
TA = +25°C
TA = +85°C
3.2 3.4 3.6
LO FREQUENCY (GHz)
3.8
4.0
4
TA = –40°C
3 TA = +25°C
TA = +85°C
2
1
0
–1
–2
–3
–4
3.0 3.1 3.2 3.3 3.4 3.5 3.6 3.7 3.8 3.9 4.0
LO FREQUENCY (GHz)
Figure 22. IQ Gain Mismatch vs. LO Frequency
Figure 25. IQ Quadrature Phase Error vs. LO Frequency
Rev. 0 | Page 11 of 36
11 Page | ||
| Páginas | Total 30 Páginas | |
| PDF Descargar | [ Datasheet ADL5380.PDF ] | |
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