參數(shù)資料
型號: HD407A4669
廠商: Hitachi,Ltd.
英文描述: Low-Voltage AS Microcomputers with On-Chip DTMF Generation Circuit(帶雙音多頻電路的低電壓微計(jì)算機(jī))
中文描述: 低電壓如同在微機(jī)芯片的DTMF產(chǎn)生電路(帶雙音多頻電路的低電壓微計(jì)算機(jī))
文件頁數(shù): 137/142頁
文件大小: 894K
代理商: HD407A4669
HD404669 Series
137
TONEC
TONER
R
L
= 100 k
GND
R
L
= 100 k
Figure 89 Tone Output Load Circuit
TONEC
TONER
R
L
= 100 k
GND
Figure 90 Distortion and dB
CR
Load Circuit
1/f
CP
t
CPL
t
CPf
t
CPr
t
CPH
V
CC
0.3 V
0.3 V
OSC
1
Figure 91 External Clock Timing
t
IL
t
IH
0.9 V
CC
0.1 V
CC
INT
0
to INT
4
, EVND
Figure 92 Interrupt Timing
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