參數(shù)資料
型號: PCT789T-A
英文描述: PCI HSP56 World MicroModem/PCT303DW/PCT1789W
中文描述: 世界MicroModem/PCT303DW/PCT1789W的PCI HSP56
文件頁數(shù): 8/70頁
文件大?。?/td> 872K
代理商: PCT789T-A
PC-TEL, Inc.
8
1789W0DOCDAT06A-0299
PCT1789W DATA SHEET
PCT303DW A
PPLICATION
C
IRCUITS
!
PRELIMINARY
PRELIMINARY
Analog Output
Figure 3 illustrates an optional application circuit to support the analog output capability of the PCT303DW for call
progress monitoring purposes.
Figure 3 Optional Connection to AOUT For a Call Progress Speaker
+
4
AOUT
Speaker
+5V
3
2
C1
C2
C3
C4
C5
R1
R2
6
5
R3
+
C6
U1
Table 2 Optional Connection Component Values
Symbol
C1
C2, C3, C5
C4
C6
R1
R2
R3
U1
Value
2200pF, 16V, ±20%
0.1μF, 16V, ±20%
100μF, 16V, Elec. ±20%
820pF, 16V, ±20%
10k
, 1/10W, ±5%
10
, 1/10W, ±5%
47k
, 1/10W, ±5%
LM386
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