HMC307QS16GE データシートの表示（PDF） - Hittite Microwave
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HMC307QS16GE Datasheet PDF : 6 Pages
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v07.0505
HMC307QS16G / 307QS16GE
1dB LSB GaAs MMIC 5-BIT DIGITAL
ATTENUATOR, DC - 4 GHz
Control Voltage
6
State
Low
Bias Condition
0 to -3V @ 70 uA Typ.
High
Vee + 0.8V @ 5 uA Typ.
Note: Vee = -5V ± 10%
Bias Voltage & Current
Vee
(VDC)
-5.0
Vee Range = -5.0 Vdc ± 10%
lee (Typ.)
(mA)
3
lee (Max.)
(mA)
6
Truth Table
V1
16 dB
Low
Low
Low
Low
Low
High
Control Voltage Input
V2
8 dB
V3
4 dB
V4
2 dB
Low
Low
Low
Low
Low
Low
Low
Low
High
Low
High
Low
High
Low
Low
Low
Low
Low
V5
1 dB
Low
High
Low
Low
Low
Low
Attenuation
State
RF1 - RF2
Reference I.L.
1 dB
2 dB
4 dB
8 dB
16 dB
High
High
High
High
High
31 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 pF ~ 0.1 uF 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 11 or Pin 14.
Suggested Driver Circuit (One Circuit Required Per Bit Control Input)
6 - 68
Simple driver using inexpensive standard logic ICs provides fast switching using minimum DC current. * Recommended
value to suppress unwanted RF signals at V1 - V5 control lines.
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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