MAAD-008866
75
Ω
Digital Attenuator, 6-Bit, Serial / Parallel Control
31.5 dB, 0.005 - 1.0 GHz
Features
•
75
Ω
Impedance
•
Integrated TTL/CMOS Compatible Driver
•
Parallel & Serial (P/S) Control with power-up
state selection
•
0.5-dB Attenuation Steps to 31.5 dB
•
Low DC Power Consumption
•
Lead-Free 4mm PQFN-24LD Plastic Package
•
Halogen-Free “Green” Mold Compound
•
RoHS* Compliant and 260°C Re-flow Compatible
Rev.V1
Functional Schematic
5
Description
The MAAD-008866 is a 6-bit, 0.5-dB step GaAs
digital attenuator in a lead-free 4mm PQFN-24LD
surface mount plastic package. The MAAD-008866
is ideally suited for use where high accuracy, very
low power consumption and low intermodulation
products are required. This part can be used in all
75
Ω
systems operating up to 1 GHz.
RF GND
RF GND
RF GND
RF GND
RF GND
RF GND
5. Blocking capacitors are required on all RF ports
Ordering Information
1,2
Part Number
MAAD-008866-TR3000
MAAD-008866-001SMB
Package
3000 piece reel
Sample Board
Pin Configuration
Pin No.
1
2
3
4
5
6
7
8
9
10
11
12
25
Function
Parallel / Serial
Select
Clock
Serial Data In
Latch Enable
GND
RF Input
RF GND
RF GND
RF GND
RF GND
RF GND
RF GND
Pin No.
13
14
15
16
17
18
19
20
21
22
23
24
Paddle
6
Function
RF Output
No Connect
Serial Data Out
Power Up State 2
Power Up State 1
Bias Voltage
B5
B4
B3
B2
B1
B0
1. Reference Application Note M513 for reel size information.
2. All sample boards include 5 loose parts.
Absolute Maximum Ratings
Parameter
Input Power
50 MHz
1000 MHz
Operating Voltage
Control Voltage
Operating Temperature
Storage Temperature
3,4
Absolute Maximum
+15 dBm
+27 dBm
+8.5 V
-0.5 V < V
C
< 5.5 V
-40°C to +85°C
-65°C to +150°C
3. Exceeding any one or combination of these limits may cause
permanent damage to this device.
4. M/A-COM Technology Solutions does not recommend
sustained operation near these survivability limits.
6. The exposed pad centered on the package bottom must be
connected to the 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-008866
75
Ω
Digital Attenuator, 6-Bit, Serial / Parallel Control
31.5 dB, 0.005 - 1.0 GHz
Electrical Specifications
7,8
: T
A
= 25°C, Z
0
= 75
Ω,
V
DD
= 5 V, V
C
= 5 V
Parameter
Test Conditions
5 MHz
50 MHz
500 MHz
1000 MHz
Any Bit or combination
5 - 1000 MHz
5 - 1000 MHz
10% to 90% RF, 90% to 10% RF
50% Control to 90 / 10% RF
In Band
50 MHz
1000 MHz
0 dBm/tone at Input, 6 MHz Spacing
50 MHz
1000 MHz
0 dBm/tone at Input, 6 MHz Spacing
50 MHz
1000 MHz
132 channels, +30 dBmV/channel at the input
Units
Min.
—
—
—
—
Typ.
1.3
1.35
1.6
1.8
Max.
—
—
—
2.3
Rev.V1
Reference Insertion Loss
dB
Attenuation Accuracy
Return Loss
Trise, Tfall
Ton, Toff
Transients
Input P1dB
± (0.15 dB + 4% of attenuation setting in dB)
dB
ns
ns
mV
dBm
—
—
—
—
—
18
320
340
88
12
25.6
33
43
51
74
88
69
4
—
—
—
—
—
IIP3
dBm
—
—
IIP2
Composite Triple Beat, CTB
dBm
dBc
dBc
µA
—
—
—
—
—
—
—
—
Composite Second Order, CSO 132 channels, +30 dBmV/channel at the input
Steady State I
DD
V
DD
= +5 V
7. External DC blocking capacitors are required on all RF ports. Loss varies at 0.003 dB/°C.
8. Low frequency is determined by DC block and RF GND capacitor value.
Truth Table
9
B5
1
1
1
1
1
1
0
0
B4
1
1
1
1
1
0
1
0
B3
1
1
1
1
0
1
1
0
B2
1
1
1
0
1
1
1
0
B1
1
1
0
1
1
1
1
0
B0
1
0
1
1
1
1
1
0
Attenuation (dB)
Reference IL
0.5
1
2
4
8
16
31.5
Application
10
9. 0 = 0 to 0.8V, 1 = 2 to 5V.
10.Capacitors
C3 - C8
should be as close to package pins as
possible.
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-008866
75
Ω
Digital Attenuator, 6-Bit, Serial / Parallel Control
31.5 dB, 0.005 - 1.0 GHz
Recommended PCB
Off-Chip Component Values
Component
C1 & C2
C3 - C8
C9
Value
0.1 µF
0.1 µF
0.01 µF
Package
0402
0201
0402
Rev.V1
Handling Procedures
Please observe the following precautions to avoid
damage:
Static Sensitivity
Gallium Arsenide Integrated Circuits are sensitive
to electrostatic discharge (ESD) and can be
damaged by static electricity. Proper ESD control
techniques should be used when handling these
devices. An external protection circuit using an
inexpensive anti-parallel diode pair can be used to
protect the IC.
Please reference application note AN3028 on
http://www.macomtech.com for further detail.
Lead Free 4
mm 24-Lead PQFN
†
†
Reference Application Note M538 for lead-free solder reflow recommendations.
Meets JEDEC moisture sensitivity level 1 requirements.
Plating is 100% matte tin over copper.
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.
MAAD-008866
75
Ω
Digital Attenuator, 6-Bit, Serial / Parallel Control
31.5 dB, 0.005 - 1.0 GHz
Typical Performance Curves
Insertion Loss
0.0
-0.4
-0.8
-1.2
+25°C
-40°C
+85°C
Rev.V1
Relative Attenuation across all major states
0
-5
-10
-15
-20
0.5 dB
1 dB
2 dB
4 dB
8 dB
16 dB
31.5 dB
-1.6
-2.0
-2.4
0.0
-25
-30
-35
0.0
0.2
0.4
0.6
0.8
1.0
0.2
0.4
0.6
0.8
1.0
Frequency (GHz)
Frequency (GHz)
Input Return Loss, across all attenuation states
0
-5
-10
-15
-20
-25
-30
-35
-40
0.0
0.2
0.4
0.6
0.8
1.0
0.5 dB
1 dB
2 dB
4 dB
8 dB
16 dB
31.5 dB
Output Return Loss, across all attenuation states
0
-5
-10
-15
-20
-25
-30
-35
-40
0.0
0.2
0.4
0.6
0.8
1.0
0.5 dB
1 dB
2 dB
4 dB
8 dB
16 dB
31.5 dB
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-008866
75
Ω
Digital Attenuator, 6-Bit, Serial / Parallel Control
31.5 dB, 0.005 - 1.0 GHz
Typical Performance Curves @ 5 Volts
Step Error vs. State over Frequency
1.00
0.75
0.50
0.25
0.00
-0.25
-0.50
-0.75
-1.00
0
4
8
12
16
20
24
28
32
5 MHz
50 MHz
500 MHz
1000 MHz
Rev.V1
Step Error vs. State over Temp @ 5 MHz
1.00
0.75
0.50
0.25
0.00
-0.25
-0.50
-0.75
-1.00
0
4
8
12
16
20
24
28
32
+25°C
-40°C
+85°C
State (dB)
State (dB)
Step Error vs. State over Temp @ 500 MHz
1.00
0.75
0.50
0.25
0.00
-0.25
-0.50
-0.75
-1.00
0
4
8
12
16
20
24
28
32
+25°C
-40°C
+85°C
Step Error vs. State over Temp @ 1000 MHz
1.00
0.75
0.50
0.25
0.00
-0.25
-0.50
-0.75
-1.00
0
4
8
12
16
20
24
28
32
+25°C
-40°C
+85°C
State (dB)
State (dB)
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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