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参数资料
| 型号： | HMC271ALP4 |
| 厂商： | HITTITE MICROWAVE CORP |
| 元件分类： | 衰减器 |
| 英文描述： | 700 MHz - 3700 MHz RF/MICROWAVE VARIABLE ATTENUATOR, 3.3 dB INSERTION LOSS-MAX |
| 封装： | 4 X 4 MM, LEADLESS, PLASTIC, SMT, QFN-24 |
| 文件页数： | 3/8页 |
| 文件大小： | 692K |
| 代理商： | HMC271ALP4 |
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
At
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At
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s
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D
IG
It
A
L-
s
M
t
8
8 - 3
Digital Control Voltages
Truth Table
serial Data Input
Attenuation
setting
rF1 - rF2
C1
C2
C4
C8
C16
High
reference
I.L.
Low
High
1 dB
High
Low
High
2 dB
High
Low
High
4 dB
High
Low
High
8 dB
High
Low
16 dB
Low
31 dB
Max. Atten.
Any combination of the above states will provide an attenuation
approximately equal to the sum of the bits selected.
state
Vcc = +5V
Vcc = +3V
Low
0 to 1.3V
0 to 0.7V
High
3.5 to 5V
2.3 to 3V
-1.2
-0.8
-0.4
0
0.4
0.8
1.2
0.5
1
1.5
2
2.5
3
3.5
4
S
T
E
P
E
R
O
R
(d
B
)
FREQUENCY (GHz)
Worst Case Step Error
Between Successive Attenuation States
Timing Diagram
Serial Input Truth Table
Latch
enable
shift
Clock
reset
Function
X
L
shift register cleared
X
á
H
shift register clocked
á
X
H
Contents of shift register
transferred to Digital
Attenuator
Parameter
symbol
Vcc = +5V
Vcc = +3V
units
Min.
Max.
Min.
Max.
serial Input setup
time
ts
20
-
100
-
ns
Hold time from serial
Input to shift Clock
th
0
-
5
-
ns
setup time from
shift Clock to Latch
enable
tlsup
40
-
100
-
ns
Propagation delay,
Latch enable to C1
through C16
tpd
-
30
-
70
ns
setup time from
reset to shift Clock
-
20
-
50
-
ns
Clock Frequency
(1/tclk)
fclk
-
30
-
10
MHz
Timing
HMC271ALP4 / 271ALP4E
v01.0510
1 dB LSB GaAs MMIC 5-BIT SERIAL
CONTROL DIGITAL ATTENUATOR, 0.7 - 3.7 GHz
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相关代理商/技术参数 |
参数描述 |
|---|---|
| HMC271ALP4E | 制造商:Hittite Microwave Corp 功能描述:IC ATTENUATOR 5BIT 1DB 24-QFN |
| HMC271ALP4ETR | 制造商:Hittite Microwave Corp 功能描述:HMC271 Series 0.7 - 3.7 GHz MMIC 5-Bit Serial Digital Attenuator - 4x4 mm QFN-24 |
| HMC271LP4 | 制造商:未知厂家 制造商全称:未知厂家 功能描述:1 dB LSB GaAs MMIC 5-BIT SERIAL CONTROL DIGITAL ATTENUATOR, 0.7 - 3.7 GHz |
| HMC271LP4_09 | 制造商:HITTITE 制造商全称:Hittite Microwave Corporation 功能描述:1 dB LSB GaAs MMIC 5-BIT SERIAL CONTROL DIGITAL ATTENUATOR, 0.7 - 3.7 GHz |
| HMC271LP4_10 | 制造商:HITTITE 制造商全称:Hittite Microwave Corporation 功能描述:1 dB LSB GaAs MMIC 5-BIT SERIAL CONTROL DIGITAL ATTENUATOR, 0.7 - 3.7 GHz |
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