参数资料
型号: CS8191XNF16
厂商: ON Semiconductor
文件页数: 10/12页
文件大小: 0K
描述: IC DRVR AIRCORE TACH/SPEED 16DIP
产品变化通告: Product Obsolescence 30/Dec/2003
标准包装: 25
类型: 驱动器
电源电压: 8.5 V ~ 15 V
安装类型: 通孔
封装/外壳: 16-DIP(0.300",7.62mm)
供应商设备封装: 16-DIP
包装: 管件
其它名称: CS8191XNF16OS
CS8191
http://onsemi.com
7
Ripple voltage on the F/V output causes pointer or needle
flutter especially at low input frequencies.
The response time of the F/V is determined by the time
constant formed by RT and C4. Increasing the value of C4
will reduce the ripple on the F/V output but will also increase
the response time. An increase in response time causes a
very slow meter movement and may be unacceptable for
many applications.
Figure 7. Partial Schematic of Input and Charge Pump
VREG
FREQIN
SQOUT
R3
2.7 V
QSQUARE
CCP
R4
VC(t)
CP+
Q1
Q2
Q3
0.25 V
2.0 V
CP–
RT
C4
F/VOUT
F to V
+
+
+
Figure 8. Timing Diagram of FREQIN and ICP
VREG
FREQIN
SQOUT
0
ICP+
tCHG
T
VCP+
0
VCC
tDCHG
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