參數(shù)資料
型號(hào): FX623P
廠商: Electronic Theatre Controls, Inc.
英文描述: Call Progress Tone Decoder
中文描述: 呼叫進(jìn)展音解碼器
文件頁(yè)數(shù): 4/6頁(yè)
文件大小: 49K
代理商: FX623P
4
Application Information
Decoder Timing
t
RESP
t
DE
V
DD
NOTONE
NOTONE
OUTPUTS
Q0 to Q3
DATA CHANGE
SIGNAL IN
Tone 1
Tone 2
Tone 3
Tone ’N’
’N’
HOLD
t
PURS
PURS
t
NT
t
DC
HOLD
t
NORM
t
PUL
t
V
DD
SIGNAL IN
OUTPUTS
Q0 - Q3
DATA OUT Q0 - Q3
(INTERNAL)
DATA CHANGE
IRQ
CS
NOTONE
TRI-STATE
TRI-STATE
VALID DATA
(READ DATA)
VALID DATA
(READ DATA)
Tone 1
RIRQ
t
IR
t
ACS
t
HIZ
t
E
F
1
t
PURS
PURS
Fig.4 Timing with the HOLD Input Held “High”; CS and IRQ are used
Fig.3 Timing with the Chip Select Input Held “Low”; CS and IRQ are not used
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