参数资料
型号: THS4022CIDGN
厂商: TEXAS INSTRUMENTS INC
元件分类: 音频/视频放大
英文描述: 2 CHANNEL, VIDEO AMPLIFIER, PDSO8
封装: GREEN, PLASTIC, MSOP-8
文件页数: 3/28页
文件大小: 948K
代理商: THS4022CIDGN
www.ti.com
NF
+ 10log 1 )
en
2
) IN+
R
S
2
4 kTR
S
0
2
4
6
8
10
12
14
16
Source Resistance
Noise
Figure
dB
10
100
1k
10k
G028
f = 10 kHz
TA = 25°C
SLOS265C – SEPTEMBER 1999 – REVISED JULY 2007
Because the dominant noise components are generally the source resistance and the internal amplifier noise
voltage, we can approximate noise figure as:
Figure 32 shows the noise figure graph for the THS402x.
NOISE FIGURE
vs
SOURCE RESISTANCE
Figure 32. Noise Figure vs Source Resistance
Copyright 1999–2007, Texas Instruments Incorporated
11
Product Folder Link(s): THS4021 THS4022
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