RFSA2644 Datasheet, PDF (3/12 Pages) RF Micro Devices – SERIAL CONTROLLED DIGITAL STEP ATTENUATOR 50MHz TO 4000MHz, 6-BIT, 0.5dB LSB

RFSA2644
Parameter
Specification
Min.
Typ.
Max.
Frequency Range
50
4000
Insertion Loss
0.7
0.7
1.0
1.2
1.5
1.8
Gain Control Range
31.5
Step Accuracy
±(0.1 + 5% attenuation range)
Input IP3
48
Input P0.5dB
20
27
Input Return Loss
13
10
Output Return Loss
13
11
Control Interface
6-Bit, Serial
Settling Time
200
Switching Speed
200
Supply Voltage (V_DD)
Supply Current
2.8
3.0
3.3
5.0
Control Voltage (V_CTL)
Low, V_CTL = 0 to 0.8V
High, V_CTL = 2.0 to V_DD
Notes:
1. V_DD = 3V, V_CTL = 3V, T = 25°C
2. IIP3 measured with P_IN = 17dBm/tone, 1MHz spacing
Unit
MHz
dB
dB
dB
dB
dB
dB
dB
dBm
dBm
dBm
dBm
dBm
dBm
dBm
nS
nS
V
mA
V
V
Condition
3V, 25°C unless otherwise stated
50MHz, 0dB attenuation
500MHz, 0dB attenuation
880MHz, 0dB attenuation
2140MHz, 0dB attenuation
2700MHz, 0dB attenuation
4000MHz, 0dB attenuation
0.5dB step size
Under 100MHz, all states
1000MHz, all states
Under 2700MHz
2700MHz to 4000MHz
Under 2700MHz
2700MHz to 4000MHz
Serial interface
t_RISE, t_FALL (10%/90% RF)
t_ON, t_OFF (50% CTL to 10%/90% RF)
DS120706
7628 Thorndike Road, Greensboro, NC 27409-9421 · For sales or technical
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