MA-COM AT90-1106

AT90-1106
Digital Attenuator
50.0 dB, 6-Bit, TTL Driver, DC-2.4 GHz
Rev. V13
Functional Schematic
Features
•
•
•
•
•
•
•
•
Attenuation: 1 dB Steps to 50 dB
Single Positive Supply
Contains Internal DC to DC Converter
Low DC Power Consumption
Small Footprint, JEDEC Package
Integral TTL Driver
50 ohm Impedance
CSP-1 Package
Description
M/A-COM's AT90-1106 is a GaAs FET 6-bit digital
attenuator with integral TTL driver. Step size is 1 dB
providing a 50 dB total attenuation range. This
device is in a PQFN plastic surface mount package.
AT90-1106 is ideally suited for use where accuracy,
fast speed, very low power consumption and low
costs are required. For dual supply designs without
switching noise, use AT90-0106.
Pin Configuration1
Ordering Information
Pin No.
Function
Pin No.
Function
1
C16
17
NC
2
C8
18
NC
3
C4
19
+Vcc
4
C2
20
NC
5
C1
21
Cp
6
C32
22
NC
7
GND
23
Cp
8
NC
24
NC
9
NC
25
-Vee3
10
NC2
26
GND
Part Number
Package
AT90-1106
Bulk Packaging
AT90-1106TR
1000 piece reel
11
GND
27
RF2
AT90-1106-TB
Sample Test Board
12
RF1
28
GND
13
GND
29
NC2
14
NC
30
-Vee3
15
NC
31
NC
16
NC
32
+Vcc
Note: Reference Application Note M513 for reel size
information.
1.
2.
3.
The exposed pad centered on the package bottom must be
connected to RF and DC ground. (For PQFN Packages)
Pins 10 & 29 must be isolated
-Vee is produced internally and requires a .1µF cap to GND.
Generated noise is typical of switching DC-DC Converters.
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: +91.80.4155721
• 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.
AT90-1106
Digital Attenuator
50.0 dB, 6-Bit, TTL Driver, DC-2.4 GHz
Rev. V13
Electrical Specifications: TA = 25°C, Z0 = 50Ω
Parameter
Test Conditions
Frequency
Units
Min
Typ
Max
Insertion Loss
—
DC - 2.4 GHz
dB
—
5.5
6.0
Attenuation Accuracy
Individual Bits 1-2-4-8-16-32 dB
Any Combination of Bits 1 to 50 dB
DC - 2.4 GHz
DC - 2.4 GHz
dB
dB
—
—
—
—
±(.3 +5% of atten setting)
±(.5 +8% of atten setting)
VSWR
Full Range
DC - 2.4 GHz
Ratio
—
1.8:1
2:1
Switching Speed
50% Cntl to 90%/10% RF
10% to 90% or 90% to 10%
—
—
ns
ns
—
—
75
20
—
—
1 dB Compression
—
—
50 MHz
0.5 - 2.4 GHz
dBm
dBm
—
—
+21
+24
—
—
Input IP3
Two-tone inputs up to +5 dBm
50 MHz
0.5-2.4 GHz
dB
dB
—
—
+35
+48
—
—
Vcc
—
—
V
4.75
5.0
5.25
VIL
VIH
LOW-level input voltage
HIGH-level input voltage
—
—
V
V
0.0
2.0
—
—
0.8
5.0
lin (Input Leakage Current)
Vin = VCC or GND
—
uA
-1.0
—
1.0
Vcc min to max, Logic “0” or “1”
—
mA
—
6
10
For guaranteed start-up
—
mA
—
—
125
mA
—
—
1.0
Icc
4
Turn-on Current
5
ΔIcc
(Additional Supply Current
Per TTL Input Pin)
VCC = Max, Vcntrl = VCC - 2.1 V
Switching Noise
Generated from
DC-DC Converter with
recommended capacitors
3.5 MHz
dBm
—
-93
—
Thermal Resistance θjc
—
—
°C/W
—
15
—
4. During turn-on, the device requires an initial “Turn-on Current”.
Once operational, Icc will drop to the specified levels.
5. The DC-DC converter is guaranteed to start in 100 µs as long as
the power supplies can provide a minimum of 100 mA “Turn-on
Current”.
Recommended PCB Configuration9
Absolute Maximum Ratings6,7
Parameter
Absolute Maximum
Max. Input Power
0.05 GHz
0.5 - 2.4 GHz
+27 dBm
+34 dBm
VCC
-0.5V ≤ VCC ≤ +6.0V
Vin
8
-0.5V ≤ Vin ≤ VCC + 0.5V
Operating Temperature
-40ºC to +85ºC
Storage Temperature
-65ºC to +125ºC
6. Exceeding any one or combination of these limits may cause
permanent damage to this device.
7. M/A-COM does not recommend sustained operation near
these survivability limits.
8. Standard CMOS TTL interface, latch-up will occur if logic
signal is applied prior to power supply.
9.
Application Note S2083 is available on line at www.macom.com.
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: +91.80.4155721
• 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.
AT90-1106
Digital Attenuator
50.0 dB, 6-Bit, TTL Driver, DC-2.4 GHz
Rev. V13
Handling Procedures
Please observe the following precautions to avoid
damage:
Truth Table (Digital Attenuator)
C32
C16
C8
C4
C2
C1
Attenuation
Static Sensitivity
0
0
0
0
0
0
Loss, Reference
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.
0
0
0
0
0
1
1.0 dB
0
0
0
0
1
0
2.0 dB
0
0
0
1
0
0
4.0 dB
0
0
1
0
0
0
8.0 dB
0
1
0
0
0
0
16.0 dB
1
0
0
0
0
0
32.0 dB
1
1
0
0
1
0
50.0 dB
Moisture Sensitivity
The MSL rating for this part is defined as Level 2
per IPC/JEDEC J-STD-020. Parts shall be stored
and/or baked as required for MSL Level 2 parts.
0 = TTL Low; 1 = TTL High
Typical Performance Curves
VSWR @ Insertion Loss
Insertion Loss
2.2
1.9
5.0
VSW R
Loss (dB)
Out p ut
Inp ut
6.0
4.0
1.6
1.3
1.0
3.0
0
400
800
1200
1600
2000
2400
0
400
Fre que ncy (MHz)
1200
1600
2000
2400
2000
2400
Frequency (MHz)
Attenuation Error, 1 dB Bit
Attenuation Error, 2 dB Bit
0.2
Attenuation Error (dB)
0.2
Attenuation Error (dB)
800
0.1
0.0
-0.1
-0.2
0.1
0.0
-0.1
0
400
800
1200
1600
Fre que ncy (MHz )
2000
2400
0
400
800
1200
1600
Fre que ncy (MHz )
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: +91.80.4155721
• 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.
AT90-1106
Digital Attenuator
50.0 dB, 6-Bit, TTL Driver, DC-2.4 GHz
Rev. V13
Typical Performance Curves
Attenuation Error, 8 dB Bit
Attenuation Error, 4 dB Bit
A ttenua tio n Erro r (dB)
Attenuation Error (dB)
0.4
0.3
0.2
0.1
0.0
0.4
0.3
0.2
0.1
0.0
-0.1
-0.2
-0.1
0
0
400
800
1200
1600
2000
400
2400
1600
2000
1.0
Attenuation Error (dB)
0.6
0.2
-0.2
-0.6
0.6
0.2
-0.2
-0.6
0
400
800
1200
1600
2000
2400
0
400
Fre que ncy (MHz )
800
1200
1600
2000
2400
Fre que ncy (MHz )
Attenuation Error, Max. Attenuation
VSWR, 1 dB Bit
Inp ut
Out p ut
1.8
2.5
1.6
0.5
VSW R
Attenuation Error (dB)
2400
Attenuation Error, 32 dB Bit
1.0
Attenuation Error (dB)
1200
Frequency (MHz)
Frequency (MHz)
Attenuation Error, 16 dB Bit
800
1.4
1.2
-1.5
1.0
0
-3.5
0
400
800
1200
1600
Fre que ncy (MHz )
2000
400
800
1200
1600
2000
2400
2400
Frequency (MHz)
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: +91.80.4155721
• 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.
AT90-1106
Digital Attenuator
50.0 dB, 6-Bit, TTL Driver, DC-2.4 GHz
Rev. V13
Typical Performance Curves
VSWR, 4 dB BIt
VSWR, 2 dB Bit
Inp ut
Out put
I nput
1.8
Out p ut
1.8
1.6
V SW R
VSWR
1.6
1.4
1.4
1.2
1.2
1.0
0
1.0
0
400
800
1200
1600
2000
400
800
2400
1200
1600
2000
2400
Frequency (MHz)
Fre que ncy (MHz )
VSWR, 8 dB Bit
VSWR, 16 dB Bit
Out p ut
Inp ut
1.8
I np ut
O ut p ut
1.6
1.4
1.4
VSWR
VSWR
1.6
1.2
1.2
1.0
0
400
800
1200
1600
2000
2400
1.0
Frequency (MHz)
0
400
800
1200
1600
2000
2400
Fre que ncy (MHz )
VSWR, 32 dB Bit
VSWR, Maximum attenuation
Inp ut
Out p ut
1.60
Inp ut
1.6
V SW R
VSWR
1.40
1.20
1.00
Out p ut
1.4
1.2
1.0
0
400
800
1200
1600
Fre quency (MHz )
2000
2400
0
400
800
1200
1600
2000
2400
Frequency (MHz)
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: +91.80.4155721
• 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.
AT90-1106
Digital Attenuator
50.0 dB, 6-Bit, TTL Driver, DC-2.4 GHz
Rev. V13
Typical Performance Curves
Maximum IP3 over Temperature Range and
Attenuation @ 950 MHz
Maximum IP3 over Temperature Range and
Attenuation @ 50 MHz
50
40
IP 3 (dBm )
IP 3 (dBm )
50
30
20
Loss
1
2
4
8
16
32
50
Attenuation (dB)
40
30
20
Loss
1
2
4
8
16
32
50
Attenuation (dB)
Maximum IP3 over Temperature Range and
Attenuation @ 1900 MHz
IP 3 ( d B m )
50
40
30
20
Loss
1
2
4
8
16
32
50
Attenuation (dB)
6
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: +91.80.4155721
• 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.
AT90-1106
Digital Attenuator
50.0 dB, 6-Bit, TTL Driver, DC-2.4 GHz
Rev. V13
CSP-1, 4 x 6 mm, 32-lead PQFN†
†
Reference Application Note M538 for lead-free solder reflow
recommendations.
7
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: +91.80.4155721
• 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.