DIGITAL ATTENUATOR. HMC291 Datasheet

HMC291 ATTENUATOR. Datasheet pdf. Equivalent

Part HMC291
Description 2-BIT DIGITAL ATTENUATOR
Feature v03.0512 HMC291 / 291E 4 dB LSB GaAs MMIC 2-BIT DIGITAL ATTENUATOR, 0.7 - 4.0 GHz Attenuators - SM.
Manufacture Analog Devices
Datasheet
Download HMC291 Datasheet



HMC291
v03.0512
HMC291 / 291E
4 dB LSB GaAs MMIC 2-BIT DIGITAL
ATTENUATOR, 0.7 - 4.0 GHz
Typical Applications
The HMC291 & HMC291E are ideal for:
• Cellular
• PCS, ISM, MMDS
• WLL Handset & Base Station
Features
RoHS Compliant Product
4 dB LSB Steps to 12 dB
Single Positive Control Per BIT, 0/+3V
Typical Bit Error : ±0.2 dB
Miniature SOT 26 Package: 9 mm2
Included in the HMC-DK004 Designer’s Kit
Functional Diagram
General Description
The HMC291 & HMC291E are general purpose
broadband 2-bit positive control GaAs IC digital
attenuators in 6 lead SOT26 surface mount plastic
packages. Covering 0.7 to 4 GHz, the insertion loss
is typically less than 0.7 to 1.3 dB. The attenuator
bit values are 4 (LSB) and 8 dB for a total attenuation
of 12 dB. Accuracy is excellent at ± 0.2 dB typical
with an IIP3 of up to +54 dBm. Two bit control voltage
inputs, toggled between 0 and +3 to +5 volts, are
used to select each attenuation state at less than 50
uA each. A single Vdd bias of +3 to +5 volts applied
through an external 5K Ohm resistor is required.
Electrical Specifications,
TA = +25° C, Vdd = +3V to +5V & Vctl = 0/Vdd (Unless Otherwise Stated)
Insertion Loss
Parameter
Attenuation Range
Return Loss (RF1 & RF2, All Atten. States)
Attenuation Accuracy: (Referenced to Insertion Loss)
All Attenuation States
All Attenuation States
All Attenuation States
All Attenuation States
Input Power for 0.1 dB Compression
Input Third Order Intercept Point
(Two-tone Input Power = 0 dBm Each Tone)
Switching Characteristics
tRISE, tFALL (10/90% RF)
tON, tOFF (50% CTL to 10/90% RF)
Frequency
0.7 - 1.4 GHz
1.4 - 2.3 GHz
2.3 - 2.7 GHz
2.7 - 4.0 GHz
0.7 - 4.0 GHz
0.7 - 1.4 GHz
1.4 - 4.0 GHz
0.7 - 1.4 GHz
1.4 - 2.3 GHz
2.3 - 2.7 GHz
2.7 - 4.0 GHz
5V
0.7 - 4.0 GHz
3V
5V
0.7 - 4.0 GHz
3V
0.7 - 4.0 GHz
Min.
Typical
Max.
0.7
1.0
0.9
1.3
1.0
1.4
1.1
1.6
12
14
17
16
22
± 0.3 + 3% of Atten. Setting Max
± 0.2 + 2% of Atten. Setting Max
± 0.2 + 3% of Atten. Setting Max
± 0.4 + 5% of Atten. Setting Max
26
22
54
50
Units
dB
dB
dB
dB
dB
dB
dB
dB
dB
dB
dB
dBm
dBm
dBm
dBm
560
ns
600
ns
1
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Trademarks and registered trademarks arAe tphepplriocpearttyioofntheSir urepsppecotivret:owPnehrso. ne: 978-250-3A3p4p3licaotrionaSpuppsp@orht:iPtthitoen.ec: o1-m800-ANALOG-D



HMC291
v03.0512
HMC291 / 291E
4 dB LSB GaAs MMIC 2-BIT DIGITAL
ATTENUATOR, 0.7 - 4.0 GHz
Insertion Loss
0
-0.5
-1
-1.5
-2
+25 C
-40 C
+85 C
-2.5
0.5
1
1.5
2
2.5
3
3.5
4
FREQUENCY (GHz)
Return Loss RF1, RF2
0
-5
-10
4 dB
8 dB
-15
12 dB
-20
-25
-30
-35
0.5
1
1.5
2
2.5
3
3.5
4
FREQUENCY (GHz)
Normalized Attenuation
0
-2
4 dB
8 dB
12 dB
-4
-6
-8
-10
-12
-14
0.5
1
1.5
2
2.5
3
3.5
4
FREQUENCY (GHz)
Absolute Bit Error vs. Attenuation State
1
0.9 GHz
0.8
1.9 GHz
2.4 GHz
3.5 GHz
0.6
0.4
0.2
0
4
6
8
10
12
ATTENUATION STATE (dB)
Absolute Bit Error vs. Frequency
2
4 dB
1.5
8 dB
12 dB
1
0.5
0
0.5
1
1.5
2
2.5
3
3.5
4
FREQUENCY (GHz)
Relative Phase vs. Frequency
60
50
4 dB
40
8 dB
12 dB
30
20
10
0
-10
-20
0.5
1
1.5
2
2.5
3
3.5
4
FREQUENCY (GHz)
Note: All Data Typical Over Voltage (+3V to +5V) & Temperature (-40 to +85 deg. C.).
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2
Trademarks and registered trademarks arAe tphepplriocpearttyioofntheSir urepsppecotivret:owPnehrso. ne: 978-250-3A3p4p3licaotrionaSpuppsp@orht:iPtthitoen.ec: o1-m800-ANALOG-D





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