DIGITAL ATTENUATOR. HMC424ALP3E Datasheet

HMC424ALP3E ATTENUATOR. Datasheet pdf. Equivalent

HMC424ALP3E Datasheet
Recommendation HMC424ALP3E Datasheet
Part HMC424ALP3E
Description 0.5dB LSB GaAs MMIC 6-BIT DIGITAL ATTENUATOR
Feature HMC424ALP3E; ATTENUATORS - DIGITAL - SMT v00.1113 Typical Applications The HMC424ALP3E is ideal for: • Basestati.
Manufacture Analog Devices
Datasheet
Download HMC424ALP3E Datasheet




Analog Devices HMC424ALP3E
v00.1113
Typical Applications
The HMC424ALP3E is ideal for:
• Basestation Infrastructure
• Fiber Optics & Broadband Telecom
• Microwave & VSAT Radios
• Military & Space
• Test Instrumentation
Functional Diagram
HMC424ALP3E
0.5dB LSB GaAs MMIC 6-BIT DIGITAL
ATTENUATOR, DC - 13 GHz
Features
0.5 dB LSB Steps to 31.5 dB
Single Control Line Per Bit
± 0.5 dB Typical Bit Error
9mm2 Leadless SMT Plastic Package
General Description
The HMC424ALP3E is a broadband 6-bit GaAs IC
digital attenuator in low cost leadless surface mount
package. Covering DC to 13 GHz, the insertion loss
is less then 4 dB typical. The attenuator bit values are
0.5 (LSB), 1, 2, 4, 8, and 16 dB for a total attenuation
of 31.5 dB. Attenuation accuracy is excellent at
± 0.5 dB typical step error with an IIP3 of +38 dBm.
Six control voltage inputs, toggled between 0 and
-5V, are used to select each attenuation state.
A single Vee bias of -5V allows operation at
frequencies down to DC.
Electrical Specifications, TA = +25° C, With Vee = -5V & VCTL= 0/-5V
Parameter
Frequency (GHz)
Min.
Insertion Loss
DC - 4 GHz
4.0 - 8.0 GHz
8.0 - 13.0 GHz
Attenuation Range
DC - 13.0 GHz
Return Loss (RF1 & RF2, All Atten. States)
DC - 13.0 GHz
Typ.
2.8
3.3
3.9
31.5
13
Max.
3.3
3.8
4.4
Attenuation Accuracy: (Referenced to Insertion Loss)
Input Power for 0.1 dB Compression
Input Third Order Intercept Point
(Two-Tone Input Power= +10 dBm Each Tone)
Switching Characteristics
0.5 - 31.5 dB States
REF State
All Other States
DC - 13.0 GHz
1.0 - 13.0 Ghz
1.0 - 13.0 Ghz
DC - 13.0 GHz
± (0.3 + 5% of Atten. Setting) Max
23
45
42
Units
dB
dB
dB
dB
dB
dB
dBm
dBm
dBm
tRISE, tFALL (10/90% RF)
tON/tOFF (50% CTL to 10/90% RF)
30 ns
50 ns
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Analog Devices HMC424ALP3E
v00.1113
Insertion Loss
0
-2
-4
-6
-8
-10
0
369
FREQUENCY (GHz)
+25 C
+85 C
12 15
-40 C
Input Return Loss
(Only Major States are Shown)
0
-5
-10
-15
-20
-25
0
3 6 9 12
FREQUENCY (GHz)
15
IL
0.5 dB
1 dB
2 dB
4 dB
8 dB
16 dB
31.5 dB
Bit Error vs. Frequency
(Only Major States are Shown)
2
1
0
-1
-2
0 3 6 9 12 15
FREQUENCY (GHz)
0.5 dB
1 dB
2 dB
4 dB
8 dB
16 dB
31.5 dB
HMC424ALP3E
0.5dB LSB GaAs MMIC 6-BIT DIGITAL
ATTENUATOR, DC - 13 GHz
Normalized Attenuation
(Only Major States are Shown)
0
-5
-10
-15
-20
-25
-30
-35
0
369
FREQUENCY (GHz)
0.5 dB
1 dB
2 dB
4 dB
12
8 dB
16 dB
31.5 dB
15
Output Return Loss
(Only Major States are Shown)
0
-5
-10
-15
-20
-25
0
3 6 9 12
FREQUENCY (GHz)
15
IL
0.5 dB
1 dB
2 dB
4 dB
8 dB
16 dB
31.5 dB
Bit Error vs. Attenuation State
2
1
0
-1
-2
0 4 8 12 16 20 24 28 32
ATTENUATION STATE (dB)
0.1 GHz
4 GHz
8 GHz
13 GHz
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2



Analog Devices HMC424ALP3E
v00.1113
Relative Phase vs. Frequency
(Only Major States are Shown)
100
80
60
40
20
0
-20
0
3 6 9 12
FREQUENCY (GHz)
15
0.5 dB
1 dB
2 dB
4 dB
8 dB
16 dB
31.5 dB
HMC424ALP3E
0.5dB LSB GaAs MMIC 6-BIT DIGITAL
ATTENUATOR, DC - 13 GHz
Worst Case Step Error
Between Successive Attenuation States
2
1
0
-1
-2
0 3 6 9 12 15
FREQUENCY (GHz)
Truth Table
V1
16 dB
Control Voltage Input
V2 V3 V4 V5
8 dB 4 dB 2 dB 1 dB
V6
0.5 dB
Low Low Low Low Low Low
Low Low Low Low Low High
Low Low Low Low High Low
Low Low Low High Low Low
Low Low High Low Low Low
Low High Low Low Low Low
High Low Low Low Low Low
High High High High High High
Any Combination of the above states will provide
an attenuation approximately equal to the sum of
the bits selected.
Attenuation
State
RF1 - RF2
Reference
I.L.
0.5 dB
1 dB
2 dB
4 dB
8 dB
16 dB
31.5 dB
Bias Voltage & Current
Vee
(VDC)
-5
Vee Range= -5 Vdc ± 10%
Iee (Typ.)
(mA)
2
Iee (Max.)
(mA)
5
Control Voltage
State
Low
High
Bias Condition
0 to -3V @ 35 µA Typ.
Vee to Vee +0.8V @ <1 µA Typ.
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