AT-230 Datasheet, PDF (2/3 Pages) Tyco Electronics – Digital Attenuator, 28 dB, 3-Bit DC - 2 GHz

AT-230
Digital Attenuator, 28 dB, 3-Bit
DC - 2.0 GHz
Rev. V4
Electrical Specifications: T_A = 25°C, Z₀ = 50 Ω
Parameter
Test Conditions
Reference
Insertion Loss
Attenuation Accuracy
DC-0.1 GHz
DC-0.5 GHz
DC-1.0 GHz
DC-2.0 GHz
DC-1.0 GHz
DC-2.0 GHz
VSWR
Trise, Tfall
10% to 90% RF, 90% to 10% RF
Units Min Typ Max
dB
—
1.2
1.4
dB
—
1.5
1.7
dB
—
1.6
1.8
dB
—
1.8
2.1
± (0.15 dB +3% of Atten Setting in dB) dB
± (0.30 dB +3% of Atten Setting in dB) dB
Ratio
—
1.2:1
—
nS
—
12
—
Ton, Toff
Transients
1 dB Compression
(Input Power)
IP₂
IP₃
50% Control to 90% RF, 50% Control to 10% RF
In Band
0.05 GHz
0.5-2.0 GHz
0.05 GHz
0.5-2.0 GHz
Measured Relative to Input Power
(for two-tone input power up to +5 dBm)
0.05 GHz
0.5-2.0 GHz
Measured Relative to Input Power
(for two-tone input power up to +5 dBm)
nS
—
18
—
mV
—
25
—
dBm
—
20
—
dBm
—
28
—
dBm
—
45
—
dBm
—
68
—
dBm
—
40
—
dBm
—
50
—
SOIC-14
Truth Table
Control Input
VC3 VC3 VC2 VC2 VC1 VC1
Atten (dB)
1
0
1
0
1
0
Reference
0
1
1
0
1
0
4 dB
1
0
0
1
1
0
8 dB
1
0
1
0
0
1
16 dB
0
1
0
1
0
1
28 dB
0 = VIN Low = 0 V to –0.2 V @ 20 µA maximum.
1 = VIN High = -5 V @ 10 µA typical to –8 V @ 200 µA maximum.
2
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