Voltage Variable Absorptive Attenuator, 19 dB
AT-302, AT-303, AT-307
DC - 2 GHz
V 2.00
AT-302 (TO-5-4)
Features
• Fast Switching Speed, 4 ns Typical
• Ultra Low DC Power Consumption
• Small Package Size
Guaranteed Specifications1
Frequency Range DC – 2.0 GHz AT-302
(From -55°C to +85°C)
AT-303 AT-307
Insertion Loss
DC – 2.0 GHz
DC – 1.0 GHz
1.6
1.5
1.5
1.5
1.5 dB Max
1.5 dB Max
VSWR (Matched) DC – 2.0 GHz 2.0:1
DC – 1.0 GHz 2.0:1
1.6:1
1.5:1
1.5:1
1.6:1
1.5:1
1.5:1
Max
Max
Max
DC – 0.5 GHz 1.5:1
Attenuation
DC – 2.0 GHz
19
19
19
dB Min
Flatness
(Peak to Peak)
DC – 2.0 GHz
DC – 1.0 GHz
1.5
1.0
1.5
1.5
1.5 dB Max
1.5 dB Max
Attenuation vs.
Temperature
0 to 10 dB Att. ±0.5
0 to 20 dB Att. ±1.5
±0.5
±1.5
±0.5 dB Max
±1.5 dB Max
AT-303 (CR-3)
Operating Characteristics
Impedance
50 Ohms Nominal
Switching Characteristics2
Trise,Tfall (10% to 90%)
6 ns Typ
8 ns Typ
10 mV Typ
Ton, Toff (50% CTL to 90%/10% RF)
Transients (in band)
Input Power for 1 dB Compression
Attenuation Level
0
2
5
10
20
dB
0.5 to 2.0 GHz
0.05 GHz
+29
+24
+29
+26
+21
+18
+28
+28
+30 dBm Typ
+30 dBm Typ
Intermodulation Intercept Point (for two-tone input power up to +5 dBm)
Intercept Points
Attenuation Level:
IP2
5
IP3
5
0
10
0
10
dB
0.5 to 2.0 GHz
0.05 GHz
68 47
51 40
53
38
49 39
48 32
40
32
dBm Typ
dBm Typ
AT-307 (CR-2 w/o Pin 1)
Phase Shift (Relative to 0 dB Attenuation)
Attenuation Level:
10
19
11
dB
Deg Typ
0.5 GHz
2.5
Control Voltages
A Input (Shunt FETS)
B Input (Series FETS)
0 to -4V @ 100 µA Max
0 to -4V @ 100 µA Max
1. All specifications apply with 50 ohm connected to all RF ports.
2. Switching speed is measured between 19 dB and 0 dB attenuation levels.
3. Contact the factory for standard or custom screening requirements.
Ordering Information
Model No.
AT-302 PIN
AT-303 PIN
AT-307 PIN
Package
TO-5-4
Ceramic
Ceramic
For all packages:
This Material Copyrighted by Its Respective Manufacturer