AT-264_1 Datasheet, PDF (2/3 Pages) Tyco Electronics – Digital Attenuator, 4-Bit, Single Control 30dB, 0.5-2.0 GHz

Digital Attenuator, 4-Bit, Single Control
30 dB, 0.5-2.0 GHz
AT-264
V6
Electrical Specifications⁴: T_A = 25°C, Z₀ = 50 Ω, V_S = 5 V
Parameter
Reference
Insertion Loss
Attenuation
Accuracy
VSWR
Trise, Tfall
Ton, Toff
Transients
1 dB
Compression
IP₂
IP₃
Test Conditions
0.5 - 1.0 GHz
0.5 - 2.0 GHz
0.5 - 1.0 GHz
0.5 - 2.0 GHz
1.0 - 1.5 GHz
0.5 - 2.0 GHz
10% to 90% RF, 90% to 10% RF
Units
Min
Typ
Max
dB
—
2.0
2.4
dB
—
2.2
2.6
± (0.15 dB + 5% of attenuation setting in dB) dB
± (0.3 dB + 5% of attenuation setting in dB) dB
Ratio
—
1.5:1
—
Ratio
—
1.9:1
—
nS
—
500
—
50% Control to 90% RF,
50% Control to 10% RF
In Band
nS
—
500
—
mV
—
75
—
Input Power
0.5 GHz
0.9 GHz
dBm
—
25
—
dBm
—
25
—
0.5 GHz
dBm
—
65
—
0.5 - 2.0 GHz
dBm
—
71
—
Measured Relative to Input (for two-tone Input Power up to +5 dBm)
0.5 GHz
dBm
—
43
—
0.5 - 2.0 GHz
dBm
—
47
—
Measured Relative to Input (for two-tone Input Power up to +5 dBm)
4. External DC blocking capacitors are required on all RF ports. Loss varies at 0.003 dB/°C.
Truth Table
VC1 VC2 VC3 VC4
1
1
1
1
1
1
1
0
1
1
0
1
1
0
1
1
0
1
1
1
0
0
0
0
Attenuation (dB)
Reference Insertion Loss
2
4
8
16
30
Logic 0 = 0 ± 0.2 V.
Logic 1 = +5 V @ 30 µA maximum current total.
2
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