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參數(shù)資料
| 型號： | 935056440623 |
| 廠商： | NXP SEMICONDUCTORS |
| 元件分類： | 放大器 |
| 英文描述： | RF/MICROWAVE WIDE BAND LOW POWER AMPLIFIER |
| 封裝： | SOT109-1, MS-012AC, SO-16 |
| 文件頁數(shù)： | 20/21頁 |
| 文件大小： | 243K |
| 代理商： | 935056440623 |
Philips Semiconductors
Product specification
SA5219
Wideband variable gain amplifier
1997 Nov 07
8
All harmonic distortion products will be
at least -50dBc over the audio spectrum.
50
50
50
+5V
SOURCE
OUTPUT
5219
+5V
RF INPUT
FULL CARRIER
AM (DSB)
MODULATING
SIGNAL
.5V
R9R
VAGC
SR00284
Figure 12. AM Modulator
The high input impedance to the NE5219 makes matching
to crystal filters relatively easy. The total delta gain of this
system will approach 80dB. IF frequencies well into the UHF
region can be configured with this type of architecture.
50
5219
CRYSTAL
GAIN CONTROL
SIGNAL
FILTER
50
OUTPUT
5219
VAGC
SR00285
Figure 13. Receiver AGC IF Gain
RL
5219
RL
±
VS
RS
RT
VAGC
VCC (+5V, unless otherwise noted)
SR00286
Figure 14. Test Set-up 1 (Used for all Graphs)
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