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參數(shù)資料
| 型號(hào)： | M-985-01T |
| 廠商： | CLARE INC |
| 元件分類(lèi)： | 信令電路 |
| 英文描述： | Precise Call Progress and Special Information Tone Generator |
| 中文描述： | TELECOM, TONE DECODER CIRCUIT, PDSO20 |
| 封裝： | PLASTIC, SOIC-20 |
| 文件頁(yè)數(shù)： | 5/8頁(yè) |
| 文件大?。?/td> | 241K |
| 代理商： | M-985-01T |
Detector Frequency Windows for SIT Tones
Detector
D950
D1400
D1800
Low Reject
835
1275
1656
Low Accept
885
1328
1722
High Accept
1016
1472
1854
High Reject
1070
1527
1924
Truth Table (Continued)
Signal Present (fo)
Any
Any
Any
Any
Mode
X
X
X
X
OUT 1
0
OUT 2
0
OUT 3
0
OUT 4
0
D425
0
Strobe
0
X
0
X
PD
0
0
0
1
OE
1
0
0
0
EN
0
1
0
X
High Impedance
High Impedance
High Impedance
Notes:
1. This output indicates 400 Hz detect when MODE is connected to V
.
2. This output indicates 620 Hz detect when MODE is open or connected to V
DD
.
M-985-01
www.clare.com
5
Rev. 1
SIT Timing
Call Progress Tones
Frequency (HZ)
1
350
400
440
440
440
480
480
350
620
425
2
Use
440
Off
Off
480
620
Off
620
Off
Off
Off
Dial Tone
Special
Alert Tone
Audible Ring
Pre-empt
Bell High Tone
Reorder (Bell Low)
Special
Special
European
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