參數(shù)資料
型號(hào): 75T2091
廠商: TDK Corporation
英文描述: DTMF Transceivers
中文描述: 雙音多頻收發(fā)器
文件頁(yè)數(shù): 7/9頁(yè)
文件大?。?/td> 75K
代理商: 75T2091
75T2089/2090/2091
DTMF Transceivers
7
CALL PROGRESS DETECTOR: Electrical Characteristics
(Continued)
PARAMETER
CONDITIONS
MIN
NOM
MAX
UNIT
ms
TON
TON
Signal Time for Detect
Signal Time for No Detect
40
10
ms
TOFF
Interval Time for Detect
40
ms
ms
TOFF
TD2
Interval Time for No Detect
Detect Time
20
40
ms
TR2
Release Time
40
ms
FIGURE 6: DTMF Decoder
FIGURE 7: Call Progress Detector
(75T2090/2091 only)
FIGURE 8: DTMF Generator
tone burst 2
TON
TOFF
tone burst 1
TD1
TR1
DV
DIN
TSU1
THD1
D0, D1, D2, D3
TER
TED
ED
*
*
75T2091 only
tone burst 2
TON
TOFF
tone burst 1
TD1
TR1
DV
DIN
TSU1
THD1
D0, D1, D2, D3
THD2
D4, D5, D6, D7
RESET
DTMF OUT
LATCH
TSU2
TPW
TPW
TRP
TSTART
NOTE: THE INDICATED TIME MAY BE AS SMALL AS 0 SEC., MEANING THAT THE
LATCH AND RESET LINES MAY BE TIED TOGETHER.
(SEE NOTE)
相關(guān)PDF資料
PDF描述
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