MAADSS0008 Datasheet, PDF (2/3 Pages) Tyco Electronics – Digital Attenuator 15 dB, 1-Bit, TTL Driver, DC-2.0 GHz

MAADSS0008
Digital Attenuator, 1-Bit, 15 dB
DC - 2.0 GHz
Rev. V1
Electrical Specifications⁴: T_A = 25°C, V_C = +2.5 Volts, Z₀ = 50 Ω
Parameter
Test Conditions
Units
Min
Typ Max
Insertion Loss
(Reference State)
Attenuation
VSWR
Input IP₃
P_1dB
Control Current
Trise, Tfall
Ton, Toff
Transients
1.0 GHz
2.0 GHz
1.0 GHz
2.0 GHz
1.0 GHz
2.0 GHz
1.0 GHz
Insertion Loss State
Attenuation State
1.0 GHz
Insertion Loss State
Attenuation State
—
10% to 90% RF, 90% to 10% RF
50% Control to 90% RF,
50% Control to 10% RF
In-band
dB
dB
dB
dB
Ratio
Ratio
dBm
dBm
dBm
dBm
µA
nS
nS
mV
—
0.3
0.4
—
0.4
0.5
14.6
15.1
15.6
14.4
14.9
15.4
—
1.2:1
—
—
1.3:1
—
40
50
—
40
50
—
24
26
—
20
23
—
—
—
10
—
29
—
—
50
—
—
10
—
4. For positive voltage control, external DC blocking capacitors are required on all RF ports (pins 1, 2 and 3).
Lead-Free SOT-25^†
Positive Control Voltage Schematic
5
4
1
2
3
† Reference Application Note M538 for lead-free solder reflow
recommendations.
39 pF
39 pF
39 pF
Truth Table ^5,6
Mode
V1
V2
(Control)
Positive ⁵
0 ± 0.2V +2.5V to +5V
+2.5V to +5V 0 ± 0.2V
Negative ⁶ 0 ± 0.2V -2.5V to -5V
-2.5V to -5V 0 ± 0.2V
Attenuation
15 dB
Reference State
Reference State
15 dB
5. External DC blocking capacitors are required as noted.
6. If negative control is used, DC blocking capacitors are not
required on RF ports and ground.
2
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