AT-109 Datasheet, PDF (2/3 Pages) Tyco Electronics – Voltage Variable Absorptive Attenuator, 35 dB 0.5 - 2 GHz

Voltage Variable Absorptive Attenuator, 35 dB
Absolute Maximum Ratings¹
Parameter
Maximum Input Power
Supply Voltage VCC
Control Voltage VCC
Operating Temperature
Storage Temperature
Absolute Maximum
+21 dBm
-1 V, +8 V
-1 V, VCC + 0.5 V
-40°C to +85°C
-65°C to +150°C
1. Operation of this device above any one of these parameters may
cause permanent damage.
Functional Schematic
AT-109
V 2.00
Typical Performance
ATTENUATION vs CONTROL VOLTAGE
@ +25°C, F = 1800 MHz
0
-5
-10
-15
-20
-25
-30
-35
5
4
3
2
1
0
CONTROL VOLTAGE (VOLTS)
RELATIVE ATTENUATION vs CONTROL VOLTAGE
@ +25°C, F = 900 MHz
0
-10
-20
-30
-40
5
4
3
2
1
0
CONTROL VOLTAGE (VOLTS)
VCC = +5 VDC ±0.5 VDC @ 50 µA max.
VC = 0 VDC to +5 VDC @ 50 µA max.
External DC blocking capacitors are required on all RF ports.
INSERTION LOSS vs FREQUENCY
4.0
3.0
2.0
1.0
0
0.5
1.0
1.5
2.0
FREQUENCY (GHz)
ATTENUATION vs TEMPERATURE,
NORMALIZED TO +25°C, F = 900 MHz
3.5
2.5
-40°C
1.5
+85°C
0.5
-0.5
-1.5
5
4
3
2
1
0
CONTROL VOLTAGE (VOLTS)