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參數(shù)資料
| 型號： | HMC939LP4 |
| 廠商： | HITTITE MICROWAVE CORP |
| 元件分類： | 衰減器 |
| 英文描述： | 100 MHz - 33000 MHz RF/MICROWAVE VARIABLE ATTENUATOR, 7.5 dB INSERTION LOSS-MAX |
| 封裝： | 4 X 4 MM, LEADLESS, PLASTIC, SMT, 24 PIN |
| 文件頁數(shù)： | 5/8頁 |
| 文件大小： | 698K |
| 代理商： | HMC939LP4 |
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For price, delivery and to place orders: Hittite Microwave Corporation, 20 Alpha Road, Chelmsford, MA 01824
Phone: 978-250-3343
Fax: 978-250-3373
Order On-line at www.hittite.com
Application Support: Phone: 978-250-3343 or apps@hittite.com
HMC939LP4 / HMC939LP4E
v00.0910
1.0 dB LSB GaAs MMIC 5-BIT DIGITAL
ATTENUATOR, 0.1 - 33 GHz
pad number
Function
Description
interface schematic
1
Vss
negative Bias -5V
2-4, 6-13,
15-17, 19
n/C
the pins are not connected internally; however, all data
shown herein was measured with these pins connected to
rF/DC ground externally.
5, 14
rF1, rF2
these pins are DC coupled and matched to 50 ohm. Blocking
capacitors are required if rF line potential is not equal to 0V.
18
Vdd
positive Bias +5V
20 - 24
p0 - p4
see truth table and control voltage table.
gnD
package bottom must be connected to rF/DC ground.
Pin Descriptions
Truth Table
Control Voltage input
Attenuation
state
rF1 - rF2
p4
16 dB
p3
8 dB
p2
4 dB
p1
2 dB
p0
1 dB
high
reference i.l.
high
low
1 dB
high
low
high
2 dB
high
low
high
4 dB
high
low
high
8 dB
low
high
16 dB
low
31 dB
Any Combination of the above states will provide an attenuation
approximately equal to the sum of the bits selected.
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| HMC939LP4_12 | 制造商:HITTITE 制造商全稱:Hittite Microwave Corporation 功能描述:1.0 dB LSB GaAs MMIC 5-BIT DIGITAL |
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| HMC940LC4B | 制造商:Hittite Microwave Corp 功能描述:IC CLOCK BUFFER 1:4 24SMT |
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