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PDF ADL5202 Data sheet ( Hoja de datos )
| Número de pieza | ADL5202 | |
| Descripción | Digitally Controlled VGA | |
| Fabricantes | Analog Devices | |
| Logotipo |  |
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Data Sheet
Wide Dynamic Range, High Speed,
Digitally Controlled VGA
ADL5202
FEATURES
Dual independent, digitally controlled VGAs
−11.5 dB to +20 dB gain range
0.5 dB ± 0.1 dB step size
150 Ω differential input and output
7.5 dB noise figure at maximum gain
OIP3 > 50 dBm at 200 MHz
−3 dB upper frequency bandwidth of 700 MHz
Multiple control interface options
Parallel 6-bit control interface (with latch)
Serial peripheral interface (SPI) (with fast attack)
Gain up/down mode
Wide input dynamic range
Low power mode option
Power-down control
Single 5 V supply operation
40-lead, 6 mm × 6 mm LFCSP package
APPLICATIONS
Differential ADC drivers
High IF sampling receivers
High output power IF amplification
Instrumentation
GENERAL DESCRIPTION
The ADL5202 is a digitally controlled, variable gain, wide band-
width amplifier that provides precise gain control, high output
IP3, and low noise figure. The excellent distortion performance
and high signal bandwidth make the ADL5202 an excellent gain
control device for a variety of receiver applications. The
ADL5202 also incorporates a low power mode option that
lowers the supply current.
For wide input dynamic range applications, the ADL5202
provides a broad 31.5 dB gain range with 0.5 dB resolution. The
gain is adjustable through multiple gain control interface options:
parallel, serial peripheral interface, and up/down.
Incorporating proprietary distortion cancellation techniques,
the ADL5202 achieves a better than 50 dBm output IP3 at
frequencies approaching 200 MHz for most gain settings.
FUNCTIONAL BLOCK DIAGRAM
SIDE A
SPI WITH FA,
PARALLEL WITH LATCH,
UP/DN
PWUPA
VPOS
LOGIC
VINA+
VINA–
MODE0,
MODE1
PM
150Ω 0dB TO 31.5dB
CONTROL
CIRCUITRY
VINB+
VINB–
150Ω 0dB TO 31.5dB
LOGIC
+20dB
150Ω
VOUTA+
VOUTA–
+20dB
150Ω
VOUTB+
VOUTB–
ADL5202
SIDE B
SPI WITH FA,
PARALLEL WITH LATCH,
UP/DN
PWUPB
Figure 1.
GND
The ADL5202 is powered on by applying the appropriate logic
level to the PWUPx pins. The quiescent current of the ADL5202
is typically 160 mA in low power mode. When configured in high
performance mode for more demanding applications, the quiescent
current is 210 mA. When powered down, the ADL5202 consumes
less than 14 mA and offers excellent input-to-output isolation.
The gain setting is preserved during power-down.
Fabricated on an Analog Devices, Inc., high speed SiGe process,
the ADL5202 provides precise gain adjustment capabilities with
good distortion performance and low phase error. The ADL5202
amplifier comes in a compact, thermally enhanced 40-lead,
6 mm × 6 mm LFCSP package and operates over a temperature
range of −40°C to +85°C.
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
©2011 Analog Devices, Inc. All rights reserved.
1 page  
Data Sheet
ABSOLUTE MAXIMUM RATINGS
Table 2.
Parameter
Supply Voltage, VPOS
PWUPA, PWUPB, A0 to A5, B0 to B5,
MODE0, MODE1, PM, LATCHA, LATCHB
Input Voltage, VIN+ ,VIN−
Internal Power Dissipation
θJA (Exposed Paddle Soldered Down)
θJC (At Exposed Paddle)
Maximum Junction Temperature
Operating Temperature Range
Storage Temperature Range
Lead Temperature (Soldering, 60 sec)
Rating
5.5
3.6 V
+3.6 V to −1.2 V
1.6 W
34.6°C/W
3.6°C/W
140°C
−40°C to +85°C
−65°C to +150°C
240°C
ADL5202
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
Rev. 0 | Page 5 of 32
5 Page 
Data Sheet
60
–11.5dB
0dB
10dB
55 20dB
50
45
40
35
30
0 50 100 150 200 250 300 350 400
FREQUENCY (MHz)
Figure 24. Output Third-Order Intercept vs. Frequency
at Four Gain Codes, Low Power Mode at 2 V p-p Composite
60
TA = –40°C
TA = +25°C
55 TA = +85°C
50
45
40
35
30
0 50 100 150 200 250 300 350 400
FREQUENCY (MHz)
Figure 25. Output Third-Order Intercept vs. Frequency,
Three Temperatures, Low Power Mode
–60
46MHz
140MHz
300MHz
–70
–80
–90
–100
–110
–120
–15 –10 –5
0
5 10 15 20 25
PROGRAMMED GAIN (dB)
Figure 26. Two-Tone Output IMD3 vs. Programmed Gain
at 46 MHz, 140 MHz, 300 MHz; Low Power Mode
ADL5202
60
–11.5dB
0dB
55 10dB
20dB
50
45
40
35
INPUT
MAX RATINGS
30 BOUNDRY
25
20
–4 –3 –2 –1 0 1 2 3 4 5 6
POUT (dBm)
Figure 27. Output Third-Order Intercept vs. Power at Four Gain Codes,
Frequency = 140 MHz, Low Power Mode
60
TA = –40°C
55
TA = +25°C
TA = +85°C
50
45
40
35
30
25
20
–4 –3 –2 –1 0 1 2 3 4 5 6
POUT (dBm)
Figure 28. Output Third-Order Intercept vs. Power,
Three Temperatures, Low Power Mode at 2 V p-p Composite
–60 TA = –40°C
TA = +25°C
–70 TA = +85°C
–80
–90
–100
–110
–120
0
50 100 150 200 250 300 350
FREQUENCY (MHz)
Figure 29. Two-Tone Output IMD3 vs. Frequency,
Three Temperatures, Low Power Mode
400
Rev. 0 | Page 11 of 32
11 Page | ||
| Páginas | Total 30 Páginas | |
| PDF Descargar | [ Datasheet ADL5202.PDF ] | |
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