Digital Attenuator, 50 dB, 6-Bit,
TTL Driver, DC-2.4 GHz
AT90
-
0106
CSP-1
V 5.00
Electrical Specifications
T
A
= +25C
Parameter
Test Conditions
Frequency
Units
Min
Typical
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
150
50
1 dB Compression
--
--
50 MHz
0.5 - 2.40 GHz
dBm
dBm
--
--
+21
+29
--
--
Input IP
3
Two-tone inputs up to +5 dBm
50 MHz
0.5-2.4 GHz
dB
dB
--
--
+35
+48
--
--
+Vcc
-Vee
--
--
--
--
V
V
4.75
-8.0
5.0
-5.0
5.25
-4.75
Logic "0"
Sink Current is 20 A max.
--
V
0.0
--
0.8
Logic "1"
Source Current is 20 A max.
--
V
2.0
--
5.0
Icc
Vcc min to max,
Logic "0" or "1"
--
mA
--
0.2
6
-Iee
-Vee min to max,
Logic "0" or "1"
--
mA
--
-0.2
-1
Features
n
Attenuation: 1 dB Steps to 50 dB
n
Low DC Power Consumption
n
Small Footprint, JEDEC Package
n
Integral TTL Driver
n
50 ohm Impedance
n
Test Boards are Available
n
Tape and Reel Packaging Available
Description
M/A-COM's AT90-0106 is a GaAs FET 6-bit digital
attenuator with integral TTL driver. Step size is 1 dB pro-
viding a 50 dB total attenuation range. This device is in a
FQFP-N plastic surface mount package. The AT90-0106 is
ideally suited for use where accuracy, fast speed, very low
power consumption and low costs are required.
Digital Attenuator, 50 dB, 6-Bit, TTL Driver, DC - 2.4 GHz
AT90-0106
Specifications subject to change without notice.
n
North America: Tel. (800) 366-2266
n
Asia/Pacific: Tel.+81-44-844-8296, Fax +81-44-844-8298
n
Europe: Tel. +44 (1344) 869 595, Fax+44 (1344) 300 020
Visit www.macom.com for additional data sheets and product information.
V 5.00
2
Absolute Maximum Ratings
3
Parameter
Absolute Maximum
Max. Input Power
0.05 GHz
0.5 - 2.4 GHz
+27 dBm
+34 dBm
+Vcc
+5.5V
-Vee
-8.5V
Logic Voltages
4
-0.5 to +Vcc + 0.5V
Operating Temperature
-40C to +85C
Storage Temperature
-65C to +125C
3. Operation of this device above any one of these
parameters may cause permanent damange.
4. Standard CMOS TTL interface, latch-up will occur if logic
signal is applied prior to power supply.
Recommended PCB Layout
2
Truth Table
C32 C16 C8
C4
C2
C1
Attenuation
0
0
0
0
0
0
Loss, Reference
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
0 = TTL Low; 1 = TTL High
Pin Configuration
Pin #
Function
Pin #
Function
1
C16
17
NC
2
C8
18
NC
3
C4
19
NC
4
C2
20
NC
5
C1
21
NC
6
C32
22
NC
7
GND
23
NC
8
NC
24
NC
9
NC
25
NC
10
NC
1
26
GND
11
GND
27
RF2
12
RF1
28
GND
13
GND
29
NC
1
14
NC
30
-Vee
15
NC
31
NC
16
NC
32
+Vcc
1.
Pins 10 & 29 must be isolated
2. Application Note C2083 is available on line at
www.macom.com
Digital Attenuator, 50 dB, 6-Bit, TTL Driver, DC - 2.4 GHz
AT90-0106
Specifications subject to change without notice.
n
North America: Tel. (800) 366-2266
n
Asia/Pacific: Tel.+81-44-844-8296, Fax +81-44-844-8298
n
Europe: Tel. +44 (1344) 869 595, Fax+44 (1344) 300 020
Visit www.macom.com for additional data sheets and product information.
V 5.00
Typical Performance Curves
3
Attenuation Error, 2 dB Bit
Attenuation Error, 1 dB Bit
Attenuation Error, 4 dB Bit
Attenuation Error, 8 dB Bit
-0.2
-0.1
0.0
0.1
0.2
0
400
800
1200
1600
2000
2400
Frequency (MHz)
Attenuation Error (dB)
-0.1
0.0
0.1
0.2
0
400
800
1200
1600
2000
2400
Frequency (MHz)
Attenuation Error (dB)
-0.1
0.0
0.1
0.2
0.3
0.4
0
400
800
1200
1600
2000
2400
Frequency (MHz)
Attenuation Error (dB)
-0.2
-0.1
0.0
0.1
0.2
0.3
0.4
0
400
800
1200
1600
2000
2400
Frequency (MHz)
Attenuation Error (dB)
Insertion Loss
3.0
4.0
5.0
6.0
0
400
800
1200
1600
2000
2400
Frequency (MHz)
Loss (dB)
VSWR @ Insertion Loss
1.0
1.3
1.6
1.9
2.2
0
400
800
1200
1600
2000
2400
Frequency (MHz)
VSWR
Input
Output
Digital Attenuator, 50 dB, 6-Bit, TTL Driver, DC - 2.4 GHz
AT90-0106
Specifications subject to change without notice.
n
North America: Tel. (800) 366-2266
n
Asia/Pacific: Tel.+81-44-844-8296, Fax +81-44-844-8298
n
Europe: Tel. +44 (1344) 869 595, Fax+44 (1344) 300 020
Visit www.macom.com for additional data sheets and product information.
V 5.00
Typical Performance Curves
4
Attenuation Error, 16 dB Bit
Attenuation Error, 32 dB Bit
-0.6
-0.2
0.2
0.6
1.0
0
400
800
1200
1600
2000
2400
Frequency (MHz)
Attenuation Error (dB)
-0.6
-0.2
0.2
0.6
1.0
0
400
800
1200
1600
2000
2400
Frequency (MHz)
Attenuation Error (dB)
Attenuation Error, Max. Attenuation
VSWR, 1 dB Bit
VSWR, 2 dB Bit
-3.5
-1.5
0.5
2.5
0
400
800
1200
1600
2000
2400
Frequency (MHz)
Attenuation Error (dB)
1.0
1.2
1.4
1.6
1.8
0
400
800
1200
1600
2000
2400
Frequency (MHz)
VSWR
Input
Output
1.0
1.2
1.4
1.6
1.8
0
400
800
1200
1600
2000
2400
Frequency (MHz)
VSWR
Input
Output
VSWR, 4 dB Bit
1.0
1.2
1.4
1.6
1.8
0
400
800
1200
1600
2000
2400
Frequency (MHz)
VSWR
Input
Output
Digital Attenuator, 50 dB, 6-Bit, TTL Driver, DC - 2.4 GHz
AT90-0106
Specifications subject to change without notice.
n
North America: Tel. (800) 366-2266
n
Asia/Pacific: Tel.+81-44-844-8296, Fax +81-44-844-8298
n
Europe: Tel. +44 (1344) 869 595, Fax+44 (1344) 300 020
Visit www.macom.com for additional data sheets and product information.
V 5.00
Typical Performance Curves
5
VSWR, 8 dB Bit
1.0
1.2
1.4
1.6
1.8
0
400
800
1200
1600
2000
2400
Frequency (MHz)
VSWR
Input
Output
VSWR, 32 dB Bit
VSWR, 16 dB Bit
VSWR, Maximum Attenuation
Maximum IP3 over Temperature
Range and Attenuation @ 50 MHz
20
30
40
50
Loss
1
2
4
8
16
32
50
Attenuation (dB)
IP3
1.0
1.2
1.4
1.6
0
400
800
1200
1600
2000
2400
Frequency (MHz)
VSWR
Input
Output
1.00
1.20
1.40
1.60
0
400
800
1200
1600
2000
2400
Frequency (MHz)
VSWR
Input
Output
1.0
1.2
1.4
1.6
0
400
800
1200
1600
2000
2400
Frequency (MHz)
VSWR
Input
Output
Maximum IP3 over Temperature
Range and Attenuation @ 950 MHz
20
30
40
50
Loss
1
2
4
8
16
32
50
Attenuation (dB)
IP3
Digital Attenuator, 50 dB, 6-Bit, TTL Driver, DC - 2.4 GHz
AT90-0106
Specifications subject to change without notice.
n
North America: Tel. (800) 366-2266
n
Asia/Pacific: Tel.+81-44-844-8296, Fax +81-44-844-8298
n
Europe: Tel. +44 (1344) 869 595, Fax+44 (1344) 300 020
Visit www.macom.com for additional data sheets and product information.
V 5.00
6
Ordering Information
Part Number
Package
AT90-0106
Bulk Packaging
AT90-0106TR
Tape and Reel (1K Reel)
AT90-0106-TB
Units Mounted on Test Board
Typical Performance Curves
Maximum IP3 over Temperature
Range and Attenuation @ 1900 MHz
20
30
40
50
Loss
1
2
4
8
16
32
50
Attenuation (dB)
IP3
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