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GL6840A/B

更新时间: 2024-02-21 21:33:01
品牌 Logo 应用领域
海力士 - HYNIX /
页数 文件大小 规格书
8页 89K
描述
Internal Rectifier Bridge

GL6840A/B 技术参数

生命周期:Obsolete包装说明:DIP, DIP8,.3
Reach Compliance Code:compliantHTS代码:8542.39.00.01
风险等级:5.84JESD-30 代码:R-PDIP-T8
功能数量:1端子数量:8
最高工作温度:75 °C最低工作温度:-20 °C
封装主体材料:PLASTIC/EPOXY封装代码:DIP
封装等效代码:DIP8,.3封装形状:RECTANGULAR
封装形式:IN-LINE认证状态:Not Qualified
子类别:Telephone Circuits表面贴装:NO
技术:BIPOLAR电信集成电路类型:TELEPHONE RINGER CIRCUIT
温度等级:COMMERCIAL EXTENDED端子形式:THROUGH-HOLE
端子节距:2.54 mm端子位置:DUAL
Base Number Matches:1

GL6840A/B 数据手册

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GL6840  
GL6840A  
Electronic Two Tone Ringer  
Description  
Pin Configuration  
GL6840A are monolithic integrated circuits designed  
to replace the mechanical bell in telephone sets,  
in connection with an electro acoustical converter.  
The device can drive either directly a piezo ceramic  
converter(buzzer) or a small loudspeaker. In this  
case a transformer is needed. The two tone frequen-  
cies generated are switched by an internal oscillator  
in a fast sequence and made audible across output  
amplifiers in the transducer, both tone frequencies  
and switching frequency can be externally adjusted.  
The supply voltage is obtained from the AC rings  
signal and the circuit is designed so that noise on the  
line or variations on the ringing signal cannot affect  
the correct operation of the devices.  
The output bridge configuration allows to use a high  
impedance transducer with acoustical results much  
better than in a single ended configuration. The two  
outputs can also be connected independently to  
different converters or actuators(acoustical, opto and  
logic)  
8
7
6
5
Line  
Line  
1
2
3
4
Rectifier  
GND  
capacitor  
Sweep rate  
Buzzer  
Buzzer  
control capacitor  
Output freq.  
Control resistor  
(Top View)  
Absolute Maximum Ratings  
Calling Voltage(f=50§ )Ô  
continuous  
120Vrms  
200Vrms  
Calling Voltage(f=50§ )Ô  
5s ON/10s OFF  
22§ Ì  
Supply Current  
-20 to 75¡ É  
Operating Temperature  
-65 to 150¡ É  
Storage Temperature  
Test Circuit  
For GL6840A  
14 - R1(§ Ú)  
3.26 x 104  
R1(§ )Ú  
Features  
95  
f1 =  
x (2 - e  
)
• Low current consumption, in order to allow the  
parallel operation of 4 devices  
• Integrated rectifier bridge with zener diodes to  
protect against overvoltages  
1000  
C1(§ )Ý  
fsweep  
=
f2 = 0.717 x f1  
1§ Þ 2.2§ Ú  
Buzzer  
• Little external circuitry  
• Tone and switching frequencies adjustable by  
external components  
• Integrated voltage and current hysteresis  
• Bridge output configuration  
8
5
VAB Line  
GL6840A  
7
6
4
£ «  
1
2
3
10§ Þ  
VS  
C1  
R1  
14§ Ú  
100§ Ý  
1

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