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參數(shù)資料
| 型號： | ADL5519 |
| 廠商： | Analog Devices, Inc. |
| 英文描述： | 1 MHz to 10 GHz, 50 dB Dual Log Detector/Controller |
| 中文描述： | 1兆赫至10 GHz，50分貝雙數(shù)檢波器/控制器 |
| 文件頁數(shù)： | 19/27頁 |
| 文件大?。?/td> | 479K |
| 代理商： | ADL5519 |
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Preliminary Technical Data
ADL5519
increase until the power on the two input channels is equal,
resulting in a signal chain gain of unity.
Rev. PrB | Page 19 of 27
If a gain other than 0 dB is required, an attenuator can be used
in one of the RF paths, as shown in Figure 21. Alternatively,
power splitters or directional couplers of different coupling
factors can be used. Another convenient option is to apply a
voltage on VLVL other than OUTA. Refer to Equation 11 and
the Controller Mode section for more detail.
If the VGA/VVA has a positive gain control sense, the OUTN
output of the difference amplifier can be used with the
integrating capacitor tied back to FBKB.
The choice of the integrating capacitor affects the response time
of the AGC loop. Small values give a faster response time but
can result in instability, whereas larger values reduce the response
time. Note that in this mode, the capacitors on CLPA and CLPB,
which perform the rms averaging function, must still be used
and also affect the loop response time.
CHANNEL A
Log Detector
CHANNEL B
Log Detector
CLPB
CLPA
VLVL
INHB
INLB
INLA
INHA
VSTA
VSTB
OUTB
FBKB
OUTN
OUTP
FBKA
OUTA
ADL5519
C
INT
DIFF OUT +
0.1
μ
F
0.1
μ
F
ATTENUATOR
VGA/VVA
DIRECTIONAL
OR
POWER SPLITTER
DIRECTIONAL
OR
POWER SPLITTER
50
Ω
0.1
μ
F
0.1
μ
F
50
Ω
Figure 21. Operation in Controller Mode for Automatic Gain Control
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| ADL5519-EVALZ | 制造商:Analog Devices 功能描述:DUAL LOG DETECTOR/CNTRLR DUAL 5.5V - Bulk 制造商:Analog Devices 功能描述:EVAL BOARD, ADL5519 LOG DETECTOR/CTRL, Silicon Manufacturer:Analog Devices, Sili 制造商:Analog Devices 功能描述:EVAL BOARD, ADL5519 LOG DETECTOR/CTRL, Silicon Manufacturer:Analog Devices, Silicon Core Number:ADL5519, Kit Application Type:RF / IF, Kit Contents:Eval Board ADL5519, Features:(Not Applicable) |
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