AT90-0413.pdf 데이터시트 (총 5 페이지) - 파일 다운로드 AT90-0413 데이타시트 다운로드

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Digital Attenuator, 15 dB, 4-Bit, TTL
Driver, DC - 4.0 GHz
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.
CSP-1
Electrical Specifications: TA = 25°C
Parameter
Insertion Loss
Test Conditions
Attenuation
Accuracy
VSWR
Individual Bits or
Combination of Bits
Full Attenuation Range
Switching Speed
1 dB Compression
50% Cntl to 90%/10% RF
10% to 90% or 90% to 10%
Input IP3
+Vcc
-Vee
Logic “0”
Logic “1”
Icc
-Iee
Two-tone Inputs up to +5 dBm
Sink Current is 20 µA max.
Sink Current is 20 µA max.
Vcc min to max, Logic “0” or “1”
-Vee min to max, Logic “0” or “1”
Frequency
DC-2.5 GHz
DC-4.0 GHz
DC-2.5 GHz
DC-4.0 GHz
DC-2.5 GHz
DC-4.0 GHz
50 MHz
0.5-4.0 GHz
50 MHz
0.5-4.0 GHz
Units
dB
dB
dB
dB
Ratio
Ratio
nS
nS
dB
dB
dB
dB
V
V
V
V
mA
mA
Min.
4.75
-8.0
0.0
2.0
Typ.
2.0
2.5
1.5:1
1.8:1
75
20
+21
+29
+35
+48
5.0
-5.0
0.2
-0.2
Max.
2.5
3.0
±(0.3+4% of atten setting)
±(0.3+6% of atten setting)
1.8:1
2.0:1
150
50
5.25
-4.75
0.8
5.0
6
-1

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Digital Attenuator, 15 dB, 4-Bit, TTL Driver, DC - 4.0 GHz
AT90-0413
Pin Configuration
V 3.00
Recommended PCB Layout 2
Pin No.
Function
Pin No.
1 GND 17
2 C8 18
3 C4 19
4 C2 20
5 C1 21
6 GND 22
7 GND 23
8 N/C 24
9 N/C
10 N/C1
25
26
11 GND
27
12 RF1
13 GND
14 N/C
28
29
30
15 N/C
16 N/C
31
32
1. Pins 10 & 29 must be isolated.
Function
N/C
N/C
N/C
N/C
N/C
N/C
N/C
N/C
N/C
GND
RF2
GND
N/C1
-Vee
N/C
+Vcc
Truth Table
C8 C4 C2
0 00
0 00
0 01
0 10
1 00
1 11
0 = TTL Low; 1 = TTL High
C1
0
1
0
0
0
1
Attenuation
Loss, Reference
1.0 dB
2.0 dB
4.0 dB
8.0 dB
15.0 dB
Typical Performance Curves
Insertion Loss
3.00
2. Application Note C2083 is available on line at
www.macom.com
Absolute Maximum Ratings 3
Parameter
Absolute Maximum
Max. Input Power
0.05 GHz
0.5 - 4.0 GHz
+Vcc
-Vee
Logic Voltages 4
Operating Temperature
+27 dBm
+34 dBm
+5.5V
-8.5V
-0.5 to +Vcc + 0.5V
-40°C to +85°C
Storage Temperature
-65°C to +125°C
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.
VSWR @ Insertion Loss
RF In
RF Out
1.60
2.50
2.00
1.50
1.40
1.20
1.00
0
500 1000 1500 2000 2500 3000 3500 4000
Frequency (MHz)
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.
1.00
0
500 1000 1500 2000 2500 3000 3500 4000
Frequency (MHz)
2

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Digital Attenuator, 15 dB, 4-Bit, TTL Driver, DC - 4.0 GHz
Typical Performance Curves
AT90-0413
V 3.00
Attenuation Error, 1 dB Bit
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 Error, 4 dB Bit
0.60
0.40
0.20
0.00
-0.20
0
500 1000 1500 2000 2500 3000 3500 4000
Frequency (MHz)
Attenuation Error, Max. Attenuation
0.40
0.20
0.00
-0.20
-0.40
0
500 1000 1500 2000 2500 3000 3500 4000
Frequency (MHz)
Attenuation Error, 2 dB Bit
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 Error, 8 dB Bit
0.20
0.00
-0.20
-0.40
-0.60
0
500 1000 1500 2000 2500 3000 3500 4000
Frequency (MHz)
VSWR, 1 dB Bit
1.60
RF In
RF Out
1.40
1.20
1.00
0
500 1000 1500 2000 2500 3000 3500 4000
Frequency (MHz)
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.
3

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Digital Attenuator, 15 dB, 4-Bit, TTL Driver, DC - 4.0 GHz
Typical Performance Curves
AT90-0413
V 3.00
VSWR, 2 dB Bit
RF In
1.60
RF Out
1.40
1.20
1.00
0
500 1000 1500 2000 2500 3000 3500 4000
Frequency (MHz)
VSWR, 8 dB Bit
RF In
1.60
RF Out
1.40
1.20
1.00
0
500 1000 1500 2000 2500 3000 3500 4000
Frequency (MHz)
Insertion Loss vs. Temperature
3.0
2.5
2.0
1.5
1.0
0.5
0.0
0
+25°C
-40°C
+85°C
1000
2000
3000
Frequency (MHz)
4000
VSWR, 4 dB Bit
1.60
RF In
RF Out
1.40
1.20
1.00
0
500 1000 1500 2000 2500 3000 3500 4000
Frequency (MHz)
VSWR, Max. Attenuation
1.60
RF In
RF Out
1.40
1.20
1.00
0
500 1000 1500 2000 2500 3000 3500 4000
Frequency (MHz)
1 dB Bit vs. Temperature
0.6
0.5
0.4
0.3
0.2
0.1
0
-0.1
-0.2
0
-40°C
+25°C
+85°C
1000
2000
3000
Frequency (MHz)
4000
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.
4

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Digital Attenuator, 15 dB, 4-Bit, TTL Driver, DC - 4.0 GHz
Typical Performance Curves
AT90-0413
V 3.00
2 dB Bit vs. Temperature
0.5
0.4
0.3
0.2
0.1
0
-0.1
0
-40°C
+25°C
+85°C
1000
2000
3000
Frequency (MHz)
4000
8 dB Bit vs. Temperature
0.05
0.00
-0.05
-0.10
-0.15
-0.20
-0.25
-0.30
-0.35
0
-40°C
+25°C
+85°C
1000
2000
3000
Frequency (MHz)
4000
4 dB Bit vs. Temperature
0.7
0.6
0.5
0.4
0.3
0.2
0.1
0
0
-40°C
+25°C
+85°C
1000
2000
3000
Frequency (MHz)
4000
Max. Attenuation vs. Temperature
0.4
0.2
0
-0.2
-0.4
-0.6
-0.8
-1
0
-40°C
+25°C
+85°C
1000
2000
3000
Frequency (MHz)
4000
Ordering Information
Part Number
AT90-0413
AT90-0413TR
AT90-0413-TB
Package
Bulk Packaging
Tape and Reel (1K Reel)
Units Mounted on Test Board
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.
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