參數(shù)資料
型號: PCD3311CT
廠商: NXP SEMICONDUCTORS
元件分類: 無繩電話/電話
英文描述: DTMF/modem/musical-tone generators
中文描述: TELEPHONE MULTIFUNCTION CKT, PDSO16
封裝: SOT162-1
文件頁數(shù): 20/28頁
文件大?。?/td> 176K
代理商: PCD3311CT
1996 Nov 21
20
Philips Semiconductors
Product specification
DTMF/modem/musical-tone generators
PCD3311C; PCD3312C
Fig.20 DTMF output voltage levels as a function of
operating supply voltage; R
L
= 1 M
.
handbook, halfpage
VTONE
(dBm)
0
2
4
6
12
14
15
13
MGG518
VDD (V)
Tamb =
25 C
+
25 C
+
70 C
25 C
+
25 C
+
70 C
HIGH GROUP
LOW GROUP
Fig.21 Dual tone output voltage level as a function
of output load resistance.
handbook, halfpage
0.8
0.4
0
MGG519
10
6
10
5
10
4
10
3
VTONE
(dB)
RL (
)
Tamb =
25 C
+
25 C
+
70 C
handbook, full pagewidth
MGG520
0
1
2
3
4
5
100
80
60
40
20
0
level
(dBm)
frequency (kHz)
CS203
handbook, full pagewidth
MGG521
0
10
20
30
40
50
100
80
60
40
20
0
level
(dBm)
frequency (kHz)
CS203
Fig.22 Typical frequency spectrum of a dual tone signal after flat-band amplification of 6 dB.
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