参数资料
型号: PCM9211PT
厂商: TEXAS INSTRUMENTS INC
元件分类: 网络接口
英文描述: DATACOM, TOKEN RING TRANSCEIVER, PQFP48
封装: GREEN, PLASTIC, LQFP-48
文件页数: 79/121页
文件大小: 1219K
代理商: PCM9211PT
C2
R1
Input
C1
R2
R3
C3
Output
- V
VCOM
+V
0V
+5V
SBAS495 – JUNE 2010
www.ti.com
APPLICATION EXAMPLE FOR ANALOG INPUT
Figure 45 shows an example of VCOM biased buffering for 2-VRMS input with overvoltage protection.
Example of C and R values with gain (G) and corner frequency (fC):
R1 = 20 k
Ω
R2 = 10 k
Ω
R3 = 1 k
Ω
C1 = 10 mF
C2 = 330 pF
C3 = 0.1 mF
G = 0.5
fC = 48 kHz
Figure 45. VCOM Biased Buffering Example
60
Copyright 2010, Texas Instruments Incorporated
Product Folder Link(s): PCM9211
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