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Электронный компонент: AT90-0413TR

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Digital Attenuator, 15 dB, 4-Bit, TTL
Driver, DC - 4.0 GHz
AT90
-
0413
CSP-1
V 3.00
Features
n
Attenuation: 1 dB Steps to 15 dB
n
Low DC Power Consumption
n
Small Footprint, JEDEC Package
n
Integral TTL Driver
n
50 Ohm Impedance
n
Test Boards Available
n
Tape and Reel Packaging Available
Description
M/A-COM's AT90-0413 is a GaAs FET 4-Bit digital
attenuator with integral driver. Step size is 1 dB providing
a 15 dB attenuation range. This device is in an FQFP-N
plastic surface mount package. The AT90-0413 is suited
for applications where accuracy, fast speed, low power
consumption and low costs are required.
Electrical Specifications: T
A
= 25C
Parameter
Test Conditions
Frequency
Units
Min.
Typ.
Max.
Insertion Loss
--
DC-2.5 GHz
DC-4.0 GHz
dB
dB
--
--
2.0
2.5
2.5
3.0
Attenuation
Accuracy
Individual Bits or
Combination of Bits
DC-2.5 GHz
DC-4.0 GHz
dB
dB
--
--
--
--
(0.3+4% of atten setting)
(0.3+6% of atten setting)
VSWR
Full Attenuation Range
DC-2.5 GHz
DC-4.0 GHz
Ratio
Ratio
--
--
1.5:1
1.8:1
1.8:1
2.0:1
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
0.5-4.0 GHz
dB
dB
--
--
+21
+29
--
--
Input IP
3
Two-tone Inputs up to +5 dBm
50 MHz
0.5-4.0 GHz
dB
dB
--
--
+35
+48
--
--
+Vcc
--
--
V
4.75
5.0
5.25
-Vee
--
--
V
-8.0
-5.0
-4.75
Logic "0"
Sink Current is 20 A max.
--
V
0.0
--
0.8
Logic "1"
Sink 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
Digital Attenuator, 15 dB, 4-Bit, TTL Driver, DC - 4.0 GHz
AT90-0413
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 3.00
2
Recommended PCB Layout
2
Pin Configuration
Pin No.
Function
Pin No.
Function
1
GND
17
N/C
2
C8
18
N/C
3
C4
19
N/C
4
C2
20
N/C
5
C1
21
N/C
6
GND
22
N/C
7
GND
23
N/C
8
N/C
24
N/C
9
N/C
25
N/C
10
N/C
1
26
GND
11
GND
27
RF2
12
RF1
28
GND
13
GND
29
N/C
1
14
N/C
30
-Vee
15
N/C
31
N/C
16
N/C
32
+Vcc
2. Application Note C2083 is available on line at
www.macom.com
1. Pins 10 & 29 must be isolated.
Absolute Maximum Ratings
3
Parameter
Absolute Maximum
Max. Input Power
0.05 GHz
0.5 - 4.0 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.
Truth Table
C8
C4
C2
C1
Attenuation
0
0
0
0
Loss, Reference
0
0
0
1
1.0 dB
0
0
1
0
2.0 dB
0
1
0
0
4.0 dB
1
0
0
0
8.0 dB
1
1
1
1
15.0 dB
0 = TTL Low; 1 = TTL High
Typical Performance Curves
VSWR @ Insertion Loss
Insertion Loss
1.00
1.20
1.40
1.60
0
500
1000
1500
2000
2500
3000
3500
4000
Frequency (MHz)
VSWR
RF In
RF Out
1.00
1.50
2.00
2.50
3.00
0
500
1000
1500
2000
2500
3000
3500
4000
Frequency (MHz)
Attenuation (dB)
Digital Attenuator, 15 dB, 4-Bit, TTL Driver, DC - 4.0 GHz
AT90-0413
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 3.00
Typical Performance Curves
Attenuation Error, 1 dB Bit
3
Attenuation Error, 2 dB Bit
Attenuation Error, 4 dB Bit
Attenuation Error, 8 dB Bit
VSWR, 1 dB Bit
Attenuation Error, Max. Attenuation
1.00
1.20
1.40
1.60
0
500
1000
1500
2000
2500
3000
3500
4000
Frequency (MHz)
VSWR
RF In
RF Out
-0.30
-0.20
-0.10
0.00
0.10
0.20
0.30
0
500
1000
1500
2000
2500
3000
3500
4000
Frequency (MHz)
Attenuation (dB)
-0.30
-0.20
-0.10
0.00
0.10
0.20
0.30
0
500
1000
1500
2000
2500
3000
3500
4000
Frequency (MHz)
Attenuation (dB)
-0.20
0.00
0.20
0.40
0.60
0
500
1000
1500
2000
2500
3000
3500
4000
Frequency (MHz)
Attenuation (dB)
-0.60
-0.40
-0.20
0.00
0.20
0
500
1000
1500
2000
2500
3000
3500
4000
Frequency (MHz)
Attenuation (dB)
-0.40
-0.20
0.00
0.20
0.40
0
500
1000
1500
2000
2500
3000
3500
4000
Frequency (MHz)
Attenuation (dB)
Digital Attenuator, 15 dB, 4-Bit, TTL Driver, DC - 4.0 GHz
AT90-0413
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 3.00
Typical Performance Curves
VSWR, 2 dB Bit
4
VSWR, 4 dB Bit
VSWR, 8 dB Bit
VSWR, Max. Attenuation
1.00
1.20
1.40
1.60
0
500
1000
1500
2000
2500
3000
3500
4000
Frequency (MHz)
VSWR
RF In
RF Out
1.00
1.20
1.40
1.60
0
500
1000
1500
2000
2500
3000
3500
4000
Frequency (MHz)
VSWR
RF In
RF Out
1.00
1.20
1.40
1.60
0
500
1000
1500
2000
2500
3000
3500
4000
Frequency (MHz)
VSWR
RF In
RF Out
1.00
1.20
1.40
1.60
0
500
1000
1500
2000
2500
3000
3500
4000
Frequency (MHz)
VSWR
RF In
RF Out
Insertion Loss vs. Temperature
1 dB Bit vs. Temperature
0.0
0.5
1.0
1.5
2.0
2.5
3.0
0
1000
2000
3000
4000
Frequency (MHz)
Insertion Loss (dB)
+25C
-40C
+85C
-0.2
-0.1
0
0.1
0.2
0.3
0.4
0.5
0.6
0
1000
2000
3000
4000
Frequency (MHz)
Attenuation Accuracy (dB)
-40C
+25C
+85C
Digital Attenuator, 15 dB, 4-Bit, TTL Driver, DC - 4.0 GHz
AT90-0413
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 3.00
Typical Performance Curves
2 dB Bit vs. Temperature
5
4 dB Bit vs. Temperature
8 dB Bit vs. Temperature
Max. Attenuation vs. Temperature
Ordering Information
Part Number
Package
AT90-0413
Bulk Packaging
AT90-0413TR
Tape and Reel (1K Reel)
AT90-0413-TB
Units Mounted on Test Board
-0.1
0
0.1
0.2
0.3
0.4
0.5
0
1000
2000
3000
4000
Frequency (MHz)
Attenuation Accuracy (dB)
-40C
+25C
+85C
0
0.1
0.2
0.3
0.4
0.5
0.6
0.7
0
1000
2000
3000
4000
Frequency (MHz)
Attenuation Accuracy (dB)
-40C
+25C
+85C
-0.35
-0.30
-0.25
-0.20
-0.15
-0.10
-0.05
0.00
0.05
0
1000
2000
3000
4000
Frequency (MHz)
Attenuation Accuracy (dB)
-40C
+25C
+85C
-1
-0.8
-0.6
-0.4
-0.2
0
0.2
0.4
0
1000
2000
3000
4000
Frequency (MHz)
Attenuation Accuracy (dB)
-40C
+25C
+85C