參數(shù)資料
型號(hào): UPD784916AGF
廠商: NEC Corp.
英文描述: 16-BIT SINGLE-CHIP MICROCONTROLLERS
中文描述: 16位單晶片微控制器
文件頁數(shù): 44/86頁
文件大小: 446K
代理商: UPD784916AGF
μ
PD784915A, 784916A
44
(3) CFG amplifier
The CFG amplifier amplifies the capstan FG (CFG) signal that indicates the speed information of the capstan
motor. This amplifier consists of an operational amplifier and a comparator. The gain of the operational amplifier
is set by using an external resistor.
When the gain of the operational amplifier is set to 50 dB, the output duty accuracy of the CFG signal can be
improved to 50.0
±
0.3%.
Figure 3-21. Block Diagram of CFG Amplifier
+
-
CFG signal
(to timer unit)
V
REF
V
REF
AMPC.3
CFG amplifier
CFGIN
CFGAMPO
+
-
AMPC.3
CFGCPIN
S
AMPC.3
1
0
CFG
comparator
AMPM0.0
Capstan FG signal
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