HMC625LP5 Datasheet, PDF (5/10 Pages) Hittite Microwave Corporation – 0.5 dB LSB GaAs MMIC 6-BIT DIGITAL VARIABLE GAIN AMPLIFIER, DC - 6 GHz

v01.0907
HMC625LP5 / 625LP5E
0.5 dB LSB GaAs MMIC 6-BIT DIGITAL
VARIABLE GAIN AMPLIFIER, DC - 6 GHz
Power-Up States
Using the Parallel PUP truth table the attenuator can
be turned on at a specific attenuation state. By using
the PUP1 and PUP2 line four different attenuation
states can be selected. It can also be used in the
Direct Parallel Mode using the Control Voltage Inputs
to select attenuation values.
Parallel PUP Truth Table
P/S
LE
PUP2
PUP1
Gain Relative to
Maximum Gain
0
0
0
0
-31.5
0
0
1
0
-24
0
0
0
1
-16
0
0
1
1
-8
0
1
X
X
-0.5 to -31.5 dB
Note: Power-Up with LE= 1 provides normal parallel operation
with D0 - D5, and PUP1 and PUP2 are not active.
14
Absolute Maximum Ratings
RF Input Power ^[1]
Digital Inputs (Reset, Shift Clock,
Latch Enable & Serial Input)
Bias Voltage (Vdd)
Collector Bias Voltage (Vcc)
Channel Temperature
Continuous Pdiss (T = 85 °C)
(derate 8.5 mW/°C above 85 °C) ^[1]
Thermal Resistance
Storage Temperature
Operating Temperature
[1] At max gain settling
11.5 dBm (T = 85 °C)
-1.5V to (Vdd +1.5V) Vdc
5.6 Vdc
5.5 Vdc
150 °C
0.549 W
118 °C/W
-65 to +150 °C
-40 to +85 °C
Bias Voltage
Vdd (Vdc)
5V
Vs (V)
5V
Idd (Typ.) (mA)
2
Is (Typ.) (mA)
86
Truth Table
Control Voltage Input
Gain
Relative to
D5
D4
D3
D2
D1
D0 ^Maximum
Gain
High High High High High High
0 dB
High High High High High Low
-0.5 dB
High High High High Low High
-1 dB
High High High Low High High
-2 dB
High High Low High High High
-4 dB
High Low High High High High
-8 dB
Low High High High High High
-16 dB
Low Low Low Low Low Low -31.5 dB
Any combination of the above states will provide a reduction in
gain approximately equal to the sum of the bits selected.
TTL/CMOS Control Voltage
State
Low
High
Vdd= +3V or +5V
0 to 0.8V
2.0V to Vdd
ELECTROSTATIC SENSITIVE DEVICE
OBSERVE HANDLING PRECAUTIONS
14 - 6
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20 Alpha Road, Chelmsford, MA 01824 Phone: [phone] Fax: [phone]
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