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參數(shù)資料
| 型號： | PCD3360T |
| 廠商： | NXP SEMICONDUCTORS |
| 元件分類： | 無繩電話/電話 |
| 英文描述： | Programmable multi-tone telephone ringer |
| 中文描述： | TELEPHONE RINGER CKT, PDSO16 |
| 封裝： | 7.50 MM, PLASTIC, SOT-162-1, SO-16 |
| 文件頁數(shù)： | 6/20頁 |
| 文件大小： | 117K |
| 代理商： | PCD3360T |
1997 Jan 15
6
Philips Semiconductors
Product specification
Programmable multi-tone telephone ringer
PCD3360
7.6
Selection of tone sequences (TS1 and TS2)
TS1 and TS2 are effective when both FDE and FDI are HIGH, and V
DD
> V
stb
. TS1 and TS2 normally select one of the
four standard tone sequences shown in Fig.4. Different tone sequences of 15 or 16 consecutive tones and pauses can
be mask programmed to order. The seven tones (plus pause) available are shown in Fig.5, together with the
corresponding ROM codes.
The tone sequences are repeated continuously provided the enable conditions at inputs FDE and FDI are valid and
V
DD
> V
stb
. The first sequence and subsequent repetitions always begin with the first note in the sequence.
Fig.4 Tone sequences mask-programmed in the PCD3360.
handbook, full pagewidth
3
pin state
tone code
tone code
tone code
tone code
MGD715
H
H
L
H
H
L
L
L
TS1
TS2
tone sequence output at pin TONE
3
3
2
2
2
4
4
4
7
7
7
6
6
6
4
4
4
4
0
4
0
4
4
4
4
4
4
4
0 0
1
3
1
1
3
1
3
1
3
3
1
3
1
3
3
1
4
5
4
4
5
4
5
4
5
5
4
5
4
5
5
4
Fig.5 Available tones (including pause) and their corresponding ROM codes.
handbook, full pagewidth
tone key
c
d
e
g
b
c
e
tone code
1
2
3
4
5
6
7
MGD714
frequency (Hz)
533
0
0
600
667
800 1000 1067 1333
frequency ratio
8
9
10
12
15
16
20
:
:
:
:
:
:
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