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参数资料
| 型号： | HMC681LP5 |
| 厂商： | HITTITE MICROWAVE CORP |
| 元件分类： | 放大器 |
| 英文描述： | 0 MHz - 1000 MHz RF/MICROWAVE WIDE BAND LOW POWER AMPLIFIER |
| 封装： | 5 X 5 MM, LEADLESS, PLASTIC, SMT, QFN-32 |
| 文件页数： | 9/10页 |
| 文件大小： | 818K |
| 代理商： | HMC681LP5 |
12 - 8
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
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Pin Descriptions
pin number
function
description
interface schematic
1, 5, 9, 14,
16, 23, 28
n/C
the pins are not connected internally; however, all data shown
herein was measured with these pins connected to rf/dC
ground externally.
2, 20
rfin1,rfin2
this pin is dC coupled. an off chip dC blocking capacitor is
required.
4, 22
rfout1, rfout2
rf output and dC bias (Vcc) for the output stage of the
amplifiers. amplifier bias provided via external bias tee as
shown in application circuit.
3, 7, 18, 21
gnd
these pins and package bottom
must be connected to rf/dC ground.
6, 19
attin, attout
these pins are dC coupled and matched to 50 Ohms.
blocking capacitors are required. select value based
on lowest frequency of operation.
8, 10,
11, 12,
13, 15,
17
aCg1, aCg2,
aCg3, aCg4,
aCg5, aCg6, aCg7
external capacitors to ground is required. select value for
lowest frequency of operation. place capacitor as close to
pins as possible.
24
serOUt
serial input data delayed by 6 clock cycles.
25, 26
pUp2, pUp1
refer to truth tables and serial control interface diagram.
30
ClK
31
serin
32
le
29
p/s
apply +5V for normal operation.
27
Vdd
supply voltage
HMC681LP5 / 681LP5E
v03.1010
0.5 dB LSB GaAs MMIC 6-BIT DIGITAL VARIABLE
GAIN AMPLIFIER w/ SERIAL CONTROL, DC - 1 GHz
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