參數(shù)資料
型號(hào)： HMC909LP4E
廠商： HITTITE MICROWAVE CORP
元件分類： 檢測(cè)器
英文描述： 0 MHz - 5800 MHz RF/MICROWAVE LINEAR DETECTOR, 10 dBm INPUT POWER-MAX
封裝： 4 X 4 MM, ROHS COMPLIANT, PLASTIC, SMT, 24 PIN
文件頁(yè)數(shù)： 8/21頁(yè)
文件大小： 3028K
代理商： HMC909LP4E
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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11 - 16
HMC909LP4E
v02.0511
RMS POWER DETECTOR
SINGLE-ENDED, DC - 5.8 GHz
Table 1: Transient Response vs. SCI Setting [1]:
RMSOUT Rise-Time 10% -> 90% (s)
RMSOUT Rise Settling Time (s) [2]
RMSOUT Fall-time 100% -> 10% (s)
scI4,3,2,1
Pin = -20 dBm
Pin = -40 dBm
Pin = -20 dBm
Pin = -40 dBm
Pin = -20 dBm
Pin = -40 dBm
0000
0.042
0.032
0.408
0.484
1.7
1.72
0010
0.042
0.134
0.484
0.488
5.5
5.4
0100
0.06
1.32
2.6
2.12
19.5
23
0110
2.6
5.55
10.2
9.3
86
90
1000
13
25.5
59
38
350
380
1010
48
104
208
180
1500
1600
1100
190
460
870
800
6200
6500
Rise Time[3] vs.
SCI Setting over Input Power
Fall Time[4] vs.
SCI Setting over Input Power
Rise Settling Time [2] vs.
SCI Setting over Input Power
1
10
100
1000
10000
100000
01234
5
6789
10
11
12
-40 dBm
-20 dBm
0 dBm
INTEGRATION SETTING (IN DECIMAL)
FALL
TI
ME
(us)
For increased load drive capability, consider a buffer
amplifier on the RMS output. Using an integrating
amplifier on the RMS output allows for an alternative
treatment for faster settling times. An external amplifier
optimized for transient settling can also provide
additional RMS filtering, when operating HMC909LP4E
with a lower scI value.
Following figures show how the peak-to-peak ripple
decreases with higher scI settings along with the rF
pulse response over different modulations.
0.01
0.1
1
10
100
1000
10000
01234
5
6789
10
11
12
-40 dBm
-20 dBm
0 dBm
INTEGRATION SETTING (IN DECIMAL)
RISE
TIME
(us)
0.1
1
10
100
1000
10000
100000
01234
5
6789
10
11
12
-40 dBm
-20 dBm
0 dBm
INTEGRATION SETTING (IN DECIMAL)
RISE
TIME
(us)
[1] Input signal is 1900 MHz cw -tone switched on and off
[2] Measured from RF switching edge to 1dB (input referred) settling of RMSOUT.
[3] Measured from 10% to 90%
[4] Measured from 100% to 10%
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