HMC1018LP4E Datasheet, PDF (5/10 Pages) Hittite Microwave Corporation – 1.0 dB LSB GaAs MMIC 5-BIT DIGITAL

HMC1018LP4E
v01.1211
1.0 dB LSB GaAs MMIC 5-BIT DIGITAL
ATTENUATOR, 0.1 - 30 GHz
Timing Diagram (Latched Asynchronous Mode) Asynchronous Mode Truth Table
ASM1
High
High
Low
Low
ASM2
High
Low
High
Low
Attenuation State RF1-RF2
Reference I.L.
3 dB
28 dB
31 dB
Power-Up States
If LE is set to logic LOW at power-up, the logic state
of PUP determines the power-up state of the part per
PUP truth table. If the LE is set to logic HIGH at power-
up, the logic state of ASM1-ASM2 determines the
power-up state of the part per truth table for the asyn-
chronous mode. The attenuator latches in the desired
power-up state approximately 200 ms after power-up.
Bias Voltages & Currents
Vdd
Vdd1
Vss
+5V @ 0.2 mA
+5V @ 4.5 mA
-5V @ 5 mA
PUP Truth Table
PUP
High
Low
Attenuation State
Reference I.L.
31 dB
Note: The logic state of ASM1-ASM2 determines the
power-up state of the part per truth table for the asyn-
chronous mode when LE is high at power-up.
Control Voltage
State
Low
High
Bias Condition
0 to 0.8V @ 1 µA
2 to 5V @ 1 µA
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