MAAD-009194-000100
Constant Phase Digital Attenuator
31.0 dB, 5-Bit, TTL Driver, DC-3.0 GHz
Features
•
•
•
•
•
•
•
Attenuation: 1 dB steps to 31 dB
Minimal Phase Variation over Attenuation Range
Low DC Power Consumption
Hermetic Surface Mount Package
Integral TTL Driver
50
Ω
Nominal Impedance
RoHS* Compliant and 260°C Reflow Compatible
Rev. V2
Functional Schematic
Description
The MAAD-009194-000100 is a GaAs FET 5-bit
digital attenuator with a 1 dB minimum step size and
31 dB total attenuation. The design has been
optimized to minimize phase variation over the
attenuation range. This attenuator and integral TTL
driver is in a hermetically sealed ceramic 16-lead
surface mount package.
The MAAD-009194-000100 is ideally suited for use
where accuracy, fast switching, very low power
consumption and low intermodulation products are
required.
Typical applications include dynamic
range setting in precision receiver circuits and other
gain/leveling control circuits.
Environmental
screening is available. Contact the factory for
information.
Pin Configuration
2
Pin No.
1
2
3
4
Function
RF1
GND
GND
GND
GND
GND
GND
RF2
Pin No.
9
10
11
12
13
14
15
16
Function
C5
V
CC
V
EE
C4
C3
C2
C1
GND
Ordering Information
1
Part Number
MAAD-009194 –000100
MAAD-009194 -0001TB
Package
Bulk Packaging
Sample Test Board
5
6
7
8
1. Reference Application Note M513 for reel size information.
2. The metal bottom of the case must be connected to RF and
DC ground.
* Restrictions on Hazardous Substances, European Union Directive 2002/95/EC.
1
ADVANCED:
Data Sheets contain information regarding a product M/A-COM Technology Solutions
•
North America
Tel: 800.366.2266 •
Europe
Tel: +353.21.244.6400
is considering for development. Performance is based on target specifications, simulated results,
•
India
Tel: +91.80.43537383
•
China
Tel: +86.21.2407.1588
and/or prototype measurements. Commitment to develop is not guaranteed.
Visit www.macomtech.com for additional data sheets and product information.
PRELIMINARY:
Data Sheets contain information regarding a product M/A-COM Technology
Solutions has under development. Performance is based on engineering tests. Specifications are
typical. Mechanical outline has been fixed. Engineering samples and/or test data may be available.
M/A-COM Technology Solutions Inc. and its affiliates reserve the right to make
Commitment to produce in volume is not guaranteed.
changes to the product(s) or information contained herein without notice.
MAAD-009194-000100
Constant Phase Digital Attenuator
31.0 dB, 5-Bit, TTL Driver, DC-3.0 GHz
Electrical Specifications: T
A
= 25°C, Z
0
= 50
Ω
, V
CC
= +5.0V, V
EE
= -5.0V
Parameter
Operating Power
Reference Insertion Loss
Test Conditions
—
DC - 1.0 GHz
DC - 2.0 GHz
DC - 3.0 GHz
Any Single Bit, DC - 3.0 GHz
Any Combination of Bits, DC - 3.0 GHz
Any Single Bit, DC - 2.0 GHz
Any Single Bit, 2.0 - 3.0 GHz
Any Combination of Bits, DC - 1.0 GHz
Any Combination of Bits, 1.0 - 2.0 GHz
Any Combination of Bits, 2.0 - 3.0 GHz
DC - 3.0 GHz
10% to 90% RF, 90% to 10% RF
1.3 V Control to 90% RF, 1.3 V Control to 10% RF
4
Rev. V2
Units
dBm
dB
Min.
—
—
Typ.
—
—
Max.
+20
4.5
5.0
5.3
Attenuation Accuracy
3
± (0.3 +3% of attenuation setting in dB) dB
± (0.3 +4% of attenuation setting in dB) dB
±3
±5
±4
± 11
± 18
—
—
See Table 1
See Table 1
—
>+26
>+26
+39
+41
+45
+68
5.0
-5.0
0.0
5.0
—
250
—
-0.2
50
—
1.8:1
Phase Accuracy
Relative to Reference Loss
State
VSWR
Trise, Tfall
Ton, Toff
1 dB Compression
deg
Ratio
ns
ns
dBm
Reference State
0.05 GHz
0.5 - 3.0 GHz
For two-tone Input Power up to +5 dBm
0.05 GHz
0.5 - 3.0 GHz
For two-tone Input Power up to +5 dBm
0.05 GHz
0.5 - 3.0 GHz
—
—
LOW-level input voltage
HIGH-level input voltage
V
IN
= V
CC
or GND
V
CNTRL
= V
CC
or GND
V
CC
= Max, V
CNTRL
= V
CC
- 2.1 V
V
EE
min to max, V
IN
= VIL or VIH
—
Input IP3
dBm
—
—
Input IP2
V
CC
V
EE
VIL
VIH
l
IN
(Input Leakage Current)
Icc
(Quiescent Supply Current)
ΔIcc
(Additional Supply Current
Per TTL Input Pin)
I
EE
Thermal Resistance
θjc
dBm
V
V
µA
µA
mA
mA
°C/W
—
4.5
-8.0
0.0
2.0
-1
—
—
-1.0
—
—
5.5
-4.5
0.8
5.0
1
400
1.5
—
—
3. This attenuator is guaranteed monotonic.
4. 1 dB Compression was measured up to +26 dBm, which is the absolute maximum rating for this device.
2
ADVANCED:
Data Sheets contain information regarding a product M/A-COM Technology Solutions
•
North America
Tel: 800.366.2266 •
Europe
Tel: +353.21.244.6400
is considering for development. Performance is based on target specifications, simulated results,
•
India
Tel: +91.80.43537383
•
China
Tel: +86.21.2407.1588
and/or prototype measurements. Commitment to develop is not guaranteed.
Visit www.macomtech.com for additional data sheets and product information.
PRELIMINARY:
Data Sheets contain information regarding a product M/A-COM Technology
Solutions has under development. Performance is based on engineering tests. Specifications are
typical. Mechanical outline has been fixed. Engineering samples and/or test data may be available.
M/A-COM Technology Solutions Inc. and its affiliates reserve the right to make
Commitment to produce in volume is not guaranteed.
changes to the product(s) or information contained herein without notice.
MAAD-009194-000100
Constant Phase Digital Attenuator
31.0 dB, 5-Bit, TTL Driver, DC-3.0 GHz
Absolute Maximum Ratings
5,6
Parameter
Max Input Power
DC - 3.0 GHz
V
CC
V
EE
V
CC
- V
EE
V
IN7
Operating Temperature
Storage Temperature
5.
6.
7.
Rev. V2
Truth Table (Digital Attenuator)
Control Inputs
C5
0
0
0
0
0
1
1
C4
0
0
0
0
1
0
1
C3
0
0
0
1
0
0
1
C2
0
0
1
0
0
0
1
C1
0
1
0
0
0
0
1
Attenuation
Reference
16 dB
1 dB
2 dB
4 dB
8 dB
31 dB
Absolute Maximum
+26 dBm
-0.5V
≤
V
CC
≤
+7.0V
-8.5V
≤
V
EE
≤
+0.5V
-0.5V
≤
V
CC
- V
EE
≤
14.5V
-0.5V
≤
Vin
≤
V
CC
+ 0.5V
-55°C to +125°C
-65°C to +150°C
Exceeding any one or combination of these limits may cause
permanent damage to this device.
M/A-COM Technology does not recommend sustained
operation near these survivability limits.
Standard CMOS TTL interface, latch-up will occur if logic
signal is applied prior to power supply.
0 = TTL Low; 1 = TTL High
Recommended PCB Configuration
Typical Switching Speed (table 1)
Testing Condition
Ref. State
↔
1 dB
Ref. State
↔
2 dB
Ref. State
↔
4 dB
Ref. State
↔
8 dB
Ref. State
↔
16 dB
Ref. State
↔
31 dB
Ton
3.6
3.6
3.7
3.3
4.5
30.5
Trise
3.6
3.6
3.7
3.3
4.5
30.5
Units
μs
μs
μs
μs
μs
μs
Typical Input IP2 and IP3
8
Attenuation
Reference State
1 dB
2 dB
4 dB
8 dB
16 dB
31 dB
3
ADVANCED:
Data Sheets contain information regarding a product M/A-COM Technology Solutions
•
North America
Tel: 800.366.2266 •
Europe
Tel: +353.21.244.6400
is considering for development. Performance is based on target specifications, simulated results,
•
India
Tel: +91.80.43537383
•
China
Tel: +86.21.2407.1588
and/or prototype measurements. Commitment to develop is not guaranteed.
Visit www.macomtech.com for additional data sheets and product information.
PRELIMINARY:
Data Sheets contain information regarding a product M/A-COM Technology
Solutions has under development. Performance is based on engineering tests. Specifications are
typical. Mechanical outline has been fixed. Engineering samples and/or test data may be available.
M/A-COM Technology Solutions Inc. and its affiliates reserve the right to make
Commitment to produce in volume is not guaranteed.
changes to the product(s) or information contained herein without notice.
IP2
50 MHz
50
50
50
50
50
50
50
500 MHz
68
68
68
68
68
68
50
2 GHz
70
70
70
70
70
65
50
50 MHz
39
39
39
37
37
31
31
IP3
500 MHz
43
43
43
37
37
32
30
2 GHz
42
37
37
37
37
32
29
Units
dBm
dBm
dBm
dBm
dBm
dBm
dBm
8. IP2 and IP3 are measured with two-tone inputs F1 and F2 up to +5 dBm with 1 MHz spacing.
MAAD-009194-000100
Constant Phase Digital Attenuator
31.0 dB, 5-Bit, TTL Driver, DC-3.0 GHz
Typical Performance Curves
Reference Loss vs. Frequency
6.0
5.5
5.0
4.5
4.0
0.9
3.5
3.0
0.0
0.8
0.0
1.0
+25°C
-40°C
+85°C
Rev. V2
Attenuation - 1 dB Bit vs. Frequency
1.2
+25°C
-40°C
+85°C
1.1
0.5
1.0
1.5
2.0
2.5
3.0
0.5
1.0
1.5
2.0
2.5
3.0
Frequency (GHz)
Frequency (GHz)
Attenuation - 2 dB Bit vs. Frequency
2.6
+25°C
-40°C
+85°C
Attenuation - 4 dB Bit vs. Frequency
4.6
+25°C
-40°C
+85°C
2.4
4.4
2.2
4.2
2.0
4.0
1.8
0.0
0.5
1.0
1.5
2.0
2.5
3.0
3.8
0.0
0.5
1.0
1.5
2.0
2.5
3.0
Frequency (GHz)
Frequency (GHz)
4
ADVANCED:
Data Sheets contain information regarding a product M/A-COM Technology Solutions
•
North America
Tel: 800.366.2266 •
Europe
Tel: +353.21.244.6400
is considering for development. Performance is based on target specifications, simulated results,
•
India
Tel: +91.80.43537383
•
China
Tel: +86.21.2407.1588
and/or prototype measurements. Commitment to develop is not guaranteed.
Visit www.macomtech.com for additional data sheets and product information.
PRELIMINARY:
Data Sheets contain information regarding a product M/A-COM Technology
Solutions has under development. Performance is based on engineering tests. Specifications are
typical. Mechanical outline has been fixed. Engineering samples and/or test data may be available.
M/A-COM Technology Solutions Inc. and its affiliates reserve the right to make
Commitment to produce in volume is not guaranteed.
changes to the product(s) or information contained herein without notice.
MAAD-009194-000100
Constant Phase Digital Attenuator
31.0 dB, 5-Bit, TTL Driver, DC-3.0 GHz
Typical Performance Curves
Attenuation - 8 dB Bit vs. Frequency
8.6
+25°C
-40°C
+85°C
Rev. V2
Attenuation - 16 dB Bit vs. Frequency
16.6
+25°C
-40°C
+85°C
8.4
16.4
8.2
16.2
8.0
16.0
7.8
0.0
0.5
1.0
1.5
2.0
2.5
3.0
15.8
0.0
0.5
1.0
1.5
2.0
2.5
3.0
Frequency (GHz)
Frequency (GHz)
Attenuation - 31 dB Bit vs. Frequency
34.0
+25°C
-40°C
+85°C
Phase - 1 dB Bit vs. Frequency
Relative to Reference Loss State
3.0
+25°C
-40°C
+85°C
33.0
2.0
32.0
1.0
31.0
0.0
30.0
-1.0
29.0
0.0
0.5
1.0
1.5
2.0
2.5
3.0
-2.0
0.0
0.5
1.0
1.5
2.0
2.5
3.0
Frequency (GHz)
Frequency (GHz)
Phase - 2 dB Bit vs. Frequency
Relative to Reference Loss State
3.0
+25°C
-40°C
+85°C
Phase - 4 dB Bit vs. Frequency
Relative to Reference Loss State
3.0
+25°C
-40°C
+85°C
2.0
2.0
1.0
1.0
0.0
0.0
-1.0
-1.0
-2.0
0.0
0.5
1.0
1.5
2.0
2.5
3.0
-2.0
0.0
0.5
1.0
1.5
2.0
2.5
3.0
Frequency (GHz)
Frequency (GHz)
5
ADVANCED:
Data Sheets contain information regarding a product M/A-COM Technology Solutions
•
North America
Tel: 800.366.2266 •
Europe
Tel: +353.21.244.6400
is considering for development. Performance is based on target specifications, simulated results,
•
India
Tel: +91.80.43537383
•
China
Tel: +86.21.2407.1588
and/or prototype measurements. Commitment to develop is not guaranteed.
Visit www.macomtech.com for additional data sheets and product information.
PRELIMINARY:
Data Sheets contain information regarding a product M/A-COM Technology
Solutions has under development. Performance is based on engineering tests. Specifications are
typical. Mechanical outline has been fixed. Engineering samples and/or test data may be available.
M/A-COM Technology Solutions Inc. and its affiliates reserve the right to make
Commitment to produce in volume is not guaranteed.
changes to the product(s) or information contained herein without notice.
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