HMC230MS8E データシートの表示（PDF） - Hittite Microwave
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HMC230MS8E Datasheet PDF : 6 Pages
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v02.0505
Control & Bias Voltages
6
State
Low
Bias Condition
0 to +0.2Vdc @ 20 uA Max
High
Vdd ±0.2V @ 50 uA Typ
Note: Vdd = +3V to +5V ± 0.2V
HMC230MS8 / 230MS8E
4 dB LSB GaAs IC 3-BIT DIGITAL
ATTENUATOR, 0.75 - 2.0 GHz
Truth Table
Control Voltage Input
V1
16 dB
V2
4 dB
V3
8 dB
Attenuation Setting
RF1 - RF2
High
High
High
Reference I.L.
High
Low
High
4 dB
High
High
Low
8 dB
Low
High
High
16 dB
Low
Low
Low
28 dB
Max. Atten.
Any combination of the above states will provide an attenuation
approximately equal to the sum of the bits selected.
Application Circuit
DC blocking capacitors C1 & C2 are required on RF1 & RF2. Choose
C1 = C2 = 100 ~ 300 pF to allow lowest customer specific frequency to
pass with minimal loss. R1 = 5K Ohm is required to supply voltage to
the circuit through either PIN 1 or PIN 5.
6 - 10
For price, delivery, and to place orders, please contact Hittite Microwave Corporation:
20 Alpha Road, Chelmsford, MA 01824 Phone: 978-250-3343 Fax: 978-250-3373
Order On-line at www.hittite.com
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