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參數(shù)資料
| 型號(hào)： | U4076B |
| 英文描述： | Three-Tone Ringer for Telephone Sets |
| 中文描述： | 三音鈴聲的電話機(jī) |
| 文件頁數(shù)： | 1/6頁 |
| 文件大?。?/td> | 90K |
| 代理商： | U4076B |
U4076B
Preliminary Information
TELEFUNKEN Semiconductors
Rev. A1, 15-May-96
1 (6)
Three-Tone Ringer for Telephone Sets
Description
The three-tone ringing integrated circuit U4076B, in
conjunction with a piezo transducer or loudspeaker
replaces the normal electromechanical telephone bell. It
is operated with the ringing current from the exchange.
There is also a possibility of operating the IC with the dc
supply voltage, being developed for large operating
range. The integrated circuit is overload protected.
Features
Three-tone ringing sequence with 800 Hz, 1067 Hz
and 1333 Hz
Sequence frequency adjustable between 2.5 Hz and
25 Hz
Adjustable volume
Push-pull output stage
Piezo transducer or loudspeaker connection
Common input for frequency and call recognition
Reduced pulse duration for electromagnetic
transducers
Clock oscillator with ceramic resonator or LC series
cct possible
Input protective diode
On-chip rectifier bridge
Protection circuit against ringing in a parallel circuit
Benefit
Suitable for German Post Office Specification,
FTZ 121671 Pfl. 3, edition dated 24.03.82
Tone sequence
oscillator
Supply
4
(5)
6
(7)
10 (11)
8
(9)
Divider
32:1
32:1
Tone signal
generator
Reset
a
Level
monitoring
Divider
128:1
96 ms
127 ms
Divider
2:1
Reset
b
Frequency
monitoring
Frequency
Divider
Clock signal
generator
Divider
14:1
(10)
9
(15) 13
7
(8)
0.8 F
2.2 k
a
b
~
5
(6)
14
(16)
RL
22 F
600 k
43 k
4.7 nF
Ground: output signal
Open: utput signal
12
(13)
11
(12)
Three
state
1
(1)
100 k
log
2 (2)
3 (3)
455 kHz
93 7792 e
Figure 1. Block diagram and application circuit
Case:
DIP14 or SO16-L (Pin connections for SO 16-L case in bracket)
相關(guān)PDF資料 |
PDF描述 |
|---|---|
| U4076B-FL | Three-Tone Ringer for Telephone Sets |
| U4078B | Tone Ringer Interface with DC/DC Converter |
| U4080B | Voice-Switched Circuit for Handsfree Operation |
| U4083 | Low-Power Audio Amplifier for Telephone Applications |
| U4083B | Low-Power Audio Amplifier for Telephone Applications |
相關(guān)代理商/技術(shù)參數(shù) |
參數(shù)描述 |
|---|---|
| U4076B-FL | 制造商:TEMIC 制造商全稱:TEMIC Semiconductors 功能描述:Three-Tone Ringer for Telephone Sets |
| U4077B | 制造商:未知廠家 制造商全稱:未知廠家 功能描述:TELEFUNK ELECTRONIC CREATIVE TECHNOLOGIEN U2200B-FP |
| U4078B | 制造商:TEMIC 制造商全稱:TEMIC Semiconductors 功能描述:Tone Ringer Interface with DC/DC Converter |
| U4080B | 制造商:TEMIC 制造商全稱:TEMIC Semiconductors 功能描述:Voice-Switched Circuit for Handsfree Operation |
| U4082B | 制造商:ATMEL 制造商全稱:ATMEL Corporation 功能描述:Low-voltage Voice-switched IC for Hands-free Operation |
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