參數(shù)資料
型號: SA5209D,602
廠商: NXP Semiconductors
文件頁數(shù): 15/17頁
文件大小: 0K
描述: IC VGA 850MHZ 16-SOIC
標(biāo)準(zhǔn)包裝: 50
放大器類型: 可變增益
電路數(shù): 1
輸出類型: 差分
電流 - 輸入偏壓: 700nA
電流 - 電源: 43mA
電壓 - 電源,單路/雙路(±): 4.5 V ~ 7 V
工作溫度: -40°C ~ 85°C
安裝類型: 表面貼裝
封裝/外殼: 16-SOIC(0.154",3.90mm 寬)
供應(yīng)商設(shè)備封裝: 16-SO
包裝: 管件
其它名稱: 568-1196-5
935030700602
SA5209D
Philips Semiconductors
Product specification
SA5209
Wideband variable gain amplifier
1997 Nov 07
7
This circuit will exhibit about a 7dB
noise
figure
with
approximately
22dB
gain.
Narrowband
circuits
have the advantage of greater stabil-
ity, particularly when multiple de-
vices are cascaded.
50
50
50
+5V
+1V
2:1 TURNS RATIO
LC TUNED
TRANSFORMER
SOURCE
OUTPUT
5209
VAGC
SR00242
Figure 6. Narrowband Noise Optimization
This circuit will exhibit about an 8dB
noise figure with 24dB gain.
50
50
50
+5V
+1V
MINI CIRCUITS
4:1 BALUN OR
EQUIVALENT
SOURCE
OUTPUT
5209
1 : 4
VAGC
SR00243
Figure 7. Broadband Gain Optimization
This circuit will exhibit approximate-
ly an 8dB noise figure and 25dB gain.
50
50
50
+5V
+1V
4:1 TURNS RATIO
LC TUNED
TRANSFORMER
SOURCE
OUTPUT
5209
VAGC
SR00244
Figure 8. Narrowband Gain Optimization
The noise figure of this configuration
will be approximately 15dB.
50
50
50
+5V
+1V
SOURCE
OUTPUT
5209
50
VAGC
SR00245
Figure 9. Simple Amplifier Configuration
With the 50
source left untermi-
nated, the noise figure is 9dB.
50
50
50
+5V
+1V
SOURCE
OUTPUT
5209
VAGC
SR00246
Figure 10. Unterminated Configuration
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