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參數(shù)資料
| 型號： | U4076B |
| 英文描述： | Three-Tone Ringer for Telephone Sets |
| 中文描述： | 三音鈴聲的電話機 |
| 文件頁數(shù)： | 3/6頁 |
| 文件大小： | 90K |
| 代理商： | U4076B |
U4076B
Preliminary Information
TELEFUNKEN Semiconductors
Rev. A1, 15-May-96
3 (6)
Pin 13 (15): Output signal shape
Output signal has different duty cycles according to the
position of Pin 13 (15). When grounded it has a duty cycle
of 1:1. When using a dynamic loudspeaker (activa-
tion via transformer/capacitor),
is recommended. This can be achieved by connecting a
capacitor greater than 1 nF between Pin 13 (15) and
ground.
Pin 14 (16): Switched on/off
a
reduced
signal
Switched on/off is controlled by Pin 14 (16). The dc
voltage on the charge capacitor between Pin 4 (5) and 6
(7) is loaded a dummy load as long as the tone ringing is
not switched-on. In on-position (amplitude and frequency
recognition), Pin 14 (16) is connected internally with
Pin 4 (5) and the dummy load is switched-off. In
off-position, Pin 14 (16) is connected with Pin 6 (7)
internally and the dummy load is switched on.
Overload protection
The integrated circuit can withstand an ac voltage of
110 V / 50 Hz for 15 seconds between terminals a and b.
The circuit will not be damaged by a surge voltage test
with the following conditions:
Charging voltage of surge capacitance: V
cs
= 2 kV
Pulse shape: 10/700
μ
s
Pulse sequence: 30 s
No of surges: 10
Polarity change after five surges
Tone ringing
Figure 1
2 kV
93 7575 e
a
b
10 F
110
0.22 F
15
25
Figure 2. Surge voltage test circuit
Absolute Maximum Ratings
Reference point Pin 4 (5) unless otherwise specified
Parameters
Symbol
I
S
Value
50
50
125
–25 to +60
–40 to +125
Unit
mA
mA
°
C
°
C
°
C
Supply current
Output current
Junction temperature
Ambient temperature range
Storage temperature range
Power dissipation
T
amb
= 60
°
C
DIP14
SO16-L
Thermal Resistance
Pins 5 and 7 (6, 8)
Pins 11 and 12 (12, 13)
I
0
T
j
T
amb
T
stg
P
tot
P
tot
860
720
mW
mW
Parameters
Symbol
Value
Unit
Junction ambient
DIP14
SO16-L
R
thJA
R
thJA
75
90
K/W
K/W
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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