AT90-1283 Tyco Electronics, AT90-1283 Datasheet - Page 2

• Manufacturer Part Number: AT90-1283
• Description: Digital Attenuator, 15.5 Db, 5-bit, Ttl Driver, Dc-3.5 Ghz
• Manufacturer: Tyco Electronics

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Digital Attenuator, 15.5 dB, 5-Bit, TTL Driver, DC - 3.5 GHz
Truth Table
Pin Configuration
3.
4.
5.
6.
7.
8.
0 = TTL Low; 1 = TTL High
C8
0
0
0
0
0
1
1
Pin #
Pins 10 & 29 must be isolated
Pin 19 must be connected to Pin 32.
Pin 25 must be connected to Pin 30.
.01 µF cap must be between pins 21 & 23.
-Vee produced internally and requires a .1 µF cap to GND.
Generated noise is typical of switching DC-DC
Converters.
+Vcc requires a .1 µF cap to GND.
10
11
12
13
14
15
16
1
2
3
4
5
6
7
8
9
C4
0
0
0
0
1
0
1
Function
C2
0
0
0
1
0
0
1
GND
C0.5
GND
GND
GND
RF1
NC
NC
NC
NC
NC
NC
C8
C4
C2
C1
3
C1
0
0
1
0
0
0
1
C0.5
Pin #
0
1
0
0
0
0
1
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
Loss, Reference
Attenuation
15.5 dB
Function
0.5 dB
1.0 dB
2.0 dB
4.0 dB
8.0 dB
+Vcc
-Vee
-Vee
+Vcc
GND
GND
RF2
NC
Cp
Cp
NC
NC
NC
NC
NC
NC
6
6
2
5,7
5,7
4,8
4
n
n
n
9. Application Note C2083 is available on line at
Absolute Maximum Ratings
10.Operation of this device above any one of these
11.Standard CMOS TTL interface, latch-up will occur if logic
Recommended PCB Layout
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parameters may cause permanent damange.
signal is applied prior to power supply.
Operating Temperature
Storage Temperature
Max. Input Power
Logic Voltages
Parameter
0.05 GHz
0.5 - 3.5 GHz
+Vcc
11
Absolute Maximum
-0.5 to +Vcc + 0.5V
-65°C to +125°C
-40°C to +85°C
+27 dBm
+34 dBm
AT90-1283
+5.5V
10
9
V 9.00
2