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PDF ADL5243 Data sheet ( Hoja de datos )
| Número de pieza | ADL5243 | |
| Descripción | 100 MHz to 4000 MHz RF/IF Digitally Controlled VGA | |
| Fabricantes | Analog Devices | |
| Logotipo |  |
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Data Sheet
100 MHz to 4000 MHz
RF/IF Digitally Controlled VGA
ADL5243
FEATURES
Operating frequency from 100 MHz to 4000 MHz
Digitally controlled VGA with serial and parallel interfaces
6-bit, 0.5 dB digital step attenuator
31.5 dB gain control range with ±0.25 dB step accuracy
Gain Block Amplifier 1
Gain: 19.2 dB at 2140 MHz
OIP3: 40.2 dBm at 2140 MHz
P1dB: 19.8 dBm at 2140 MHz
Noise figure: 2.9 dB at 2140 MHz
¼ W Driver Amplifier 2
Gain: 14.2 dB at 2140 MHz
OIP3: 41.1 dBm at 2140 MHz
P1dB: 26.0 dBm at 2140 MHz
Noise figure: 3.7 dB at 2140 MHz
Gain block, DSA, or ¼ W driver amplifier can be first
Low quiescent current of 175 mA
The companion ADL5240 integrates a gain block with DSA
APPLICATIONS
Wireless infrastructure
Automated test equipment
RF/IF gain control
GENERAL DESCRIPTION
The ADL5243 is a high performance, digitally controlled
variable gain amplifier operating from 100 MHz to 4000 MHz.
The VGA integrates two high performance amplifiers and a
digital step attenuator (DSA). Amplifier 1 (AMP1) is an
internally matched gain block amplifier with 20 dB gain, and
Amplifier 2 (AMP2) is a broadband ¼ W driver amplifier. The
DSA is 6-bit with a 31.5 dB gain control range, 0.5 dB steps, and
±0.25 dB step accuracy. The attenuation of the DSA can be
controlled using a serial or parallel interface.
The gain block and DSA are internally matched to 50 Ω at their
inputs and outputs, and all three internal devices are separately
biased. The separate bias allows all or part of the ADL5243 to be
used, which allows for easy reuse throughout a design. The
pinout of the ADL5243 also enables the gain block, DSA, or
¼ W driver amplifier to be first, giving the VGA maximum
flexibility in a signal chain.
The ADL5243 consumes 175 mA and operates off a single
supply ranging from 4.75 V to 5.25 V. The VGA is packaged in a
thermally efficient, 5 mm × 5 mm, 32-lead LFCSP and is fully
specified for operation from −40°C to +85°C. A fully populated
evaluation board is available.www.DataSheet.co.kr
FUNCTIONAL BLOCK DIAGRAM
VDD 1
NC 2
NC 3
DSAIN 4
NC 5
AMP1OUT/VCC 6
NC 7
NC 8
32 31 30 29 28 27 26 25
SERIAL/PARALLEL INTERFACE
0.5dB
1dB
2dB 4dB
ADL5243
8dB 16dB
AMP1
AMP2
9 10 11 12 13 14 15 16
24 VDD
23 NC
22 NC
21 DSAOUT
20 NC
19 AMP2IN
18 NC
17 NC
Figure 1.
Rev. A
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
©2011 Analog Devices, Inc. All rights reserved.
Datasheet pdf - http://www.DataSheet4U.net/
1 page  
Data Sheet
Parameter
AMPLIFIER 2 FREQUENCY = 943 MHz
Gain
vs. Frequency
vs. Temperature
vs. Supply
Input Return Loss
Output Return Loss
Output 1 dB Compression Point
Output Third-Order Intercept
Noise Figure
AMPLIFIER 2 FREQUENCY = 2140 MHz
Gain
vs. Frequency
vs. Temperature
vs. Supply
Input Return Loss
Output Return Loss
Output 1 dB Compression Point
Output Third-Order Intercept
Noise Figure
AMPLIFIER 2 FREQUENCY = 2630 MHz
Gain
vs. Frequency
vs. Temperature
vs. Supply
Input Return Loss
Output Return Loss
Output 1 dB Compression Point
Output Third-Order Intercept
Noise Figure
DSA FREQUENCY = 150 MHz
Insertion Loss
vs. Frequency
vs. Temperature
Attenuation Range
Attenuation Step Error
Attenuation Absolute Error
Input Return Loss
Output Return Loss
Input Third-Order Intercept
Conditions
Using the AMP2IN and AMP2OUT pins
±18 MHz
−40°C ≤ TA ≤ +85°C
4.75 V to 5.25 V
S11
S22
∆f = 1 MHz, POUT = 5 dBm/tone
Using the AMP2IN and AMP2OUT pins
±30 MHz
−40°C ≤ TA ≤ +85°C
4.75 V to 5.25 V
S11
S22
∆f = 1 MHz, POUT = 5 dBm/tone
Using the AMP2IN and AMP2OUT pins
±60 MHz
−40°C ≤ TA ≤ +85°C
4.75 V to 5.25 V
S11
S22
www.DataSheet.co.kr
∆f = 1 MHz, POUT = 5 dBm/tone
Using the DSAIN and DSAOUT pins, minimum
attenuation
±50 MHz
−40°C ≤ TA ≤ +85°C
Between maximum and minimum attenuation states
All attenuation states
All attenuation states
∆f = 1 MHz, POUT = 5 dBm/tone
ADL5243
Min Typ Max Unit
16.5
±0.05
±0.39
±0.10
−11.2
−8.1
25.0
43.3
5.3
dB
dB
dB
dB
dB
dB
dBm
dBm
dB
13.0 14.2 15.5 dB
±0.03
dB
±0.50
dB
±0.09
dB
−10.7
dB
−8.1 dB
26.0 dBm
41.1 dBm
3.7 dB
13.0
±0.13
±0.56
±0.09
−9.4
−8.3
24.5
40.4
4.1
dB
dB
dB
dB
dB
dB
dBm
dBm
dB
−1.5
±0.12
±0.10
28.8
±0.18
±1.35
−13.5
−13.3
45.2
dB
dB
dB
dB
dB
dB
dB
dB
dBm
Rev. A | Page 5 of 32
Datasheet pdf - http://www.DataSheet4U.net/
5 Page 
Data Sheet
TYPICAL PERFORMANCE CHARACTERISTICS
ADL5243
45
OIP3
40
35
30
P1dB
25
20
15
GAIN
10
5 NF
0
0 0.4 0.8 1.2 1.6 2.0 2.4 2.8 3.2 3.6
FREQUENCY (GHz)
Figure 3. AMP1: Gain, P1dB, OIP3 at POUT = 3 dBm/Tone and Noise Figure vs.
Frequency
22.0
21.5
21.0
20.5
20.0
19.5
19.0
18.5
18.0
17.5
17.0
0
–40°C
+25°C
+85°C
0.4 0.8 1.2 1.6 2.0 2.4 2.8 3.2 3.6
FREQUENCY (GHz)
Figure 4. AMP1: Gain vs. Frequency and Temperature
0
–5
–10 S22
–15
S11
–20
S12
–25
–30
–35
–40
–45
–50
0.1 0.5 0.9 1.3 1.7 2.1 2.5 2.9 3.3 3.7 4.1
FREQUENCY (GHz)
Figure 5. AMP1: Input Return Loss (S11), Output Return Loss (S22), and
Reverse Isolation (S12) vs. Frequency
28 45
26 40
24 35
22 30
20 25
18 20
16
+85°C
15
+25°C
–40°C
14 10
0 0.4 0.8 1.2 1.6 2.0 2.4 2.8 3.2 3.6
FREQUENCY (GHz)
Figure 6. AMP1: OIP3 at Pout = 3 dBm/Tone and P1dB vs. Frequency and
Temperature
42
40 943MHz
450MHz
38
36 1960MHz
34
32
2140MHz
2630MHz
748MHz
www.DataSheet.co.kr
30
3600MHz
28
150MHz
26
24
22
20
–4 –2 0 2 4 6 8 10 12 14 16
POUT PER TONE (dBm)
Figure 7. AMP1: OIP3 vs. POUT and Frequency
5.0
4.5
4.0
+85°C
3.5
3.0 +25°C
2.5 –40°C
2.0
1.5
0
0.4 0.8 1.2 1.6 2.0 2.4 2.8 3.2 3.6 4.0
FREQUENCY (GHz)
Figure 8. AMP1: Noise Figure vs. Frequency and Temperature
Rev. A | Page 11 of 32
Datasheet pdf - http://www.DataSheet4U.net/
11 Page | ||
| Páginas | Total 30 Páginas | |
| PDF Descargar | [ Datasheet ADL5243.PDF ] | |
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