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Description
The U4076B is a three-tone ringing integrated circuit designed to replace the electromechanical telephone bell. It can be operated with the ringing current from the exchange or with a DC supply voltage. The integrated circuit is overload protected.
Specifications and features
- Three-tone ringing sequence with frequencies of 800 Hz, 1067 Hz, and 1333 Hz
- Adjustable sequence frequency between 2.5 Hz and 25 Hz
- Adjustable volume
- Push-pull output stage
- Supports piezo transducer or loudspeaker connection
- Common input for frequency and call recognition
- Reduced pulse duration for electromagnetic transducers
- Compatibility with clock oscillators using ceramic resonators or LC series circuits
- Input protective diode
- On-chip rectifier bridge
- Protection circuit against parallel circuit ringing
Application Scenarios
The U4076B is suitable for replacing the electromechanical telephone bell in various applications, including telecommunication systems and devices compliant with the German Post Office Specification FTZ 121671 Pfl. 3, edition dated 24.03.82.
Comparison
Advantages- Replaces the electromechanical telephone bell
- Can be operated with ringing current from the exchange or a DC supply voltage
- Overload protected
- Adjustable volume and sequence frequency
- Supports various connection options
- Reduced pulse duration for electromagnetic transducers
- Compatibility with different clock oscillators
- On-chip rectifier bridge and input protective diode for protection
- Protection circuit against parallel circuit ringing
Disadvantages- No specific disadvantages mentioned
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Similar parts: 430483 , Click to view
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Datasheet
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Shopping guide
Delivery period:
- - Will ship out in 2-3 days
- - DHL Express: 3-7 business days
- - DHL eCommerce: 12-22 business days
- - FedEx International Priority: 3-7 business days
- - EMS: 10-15 business days
Shipping fee:
- - Automatic Email notification (above 5 times)
- - View in your order page
Shipping option:
DHL, FedEx, EMS, SF Express, and Registered Air MailShipping tracking:
- - Automatic Email notification (above 5 times)
- - View in your order page
How to Buy:
- - In-stock, Add to cart > Check out > Submit order > Complete payment >Delivery.
- - Inquiry, Add to inquiry sheet/Submit bom/inquire file/Send email us > Quote > Place order > Complete payment >Delivery.
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Payment:
- - Paypal,Credit Card includes Visa, Master, American Express.
- - Wire transfer, include Local bank transfer.
- - Western Union.
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Popular parts of the same kind
- Datasheet: Download U4076B
- Chipdatas Part: CD91-U4076B
- Warehouse: China, Hong Kong
- Dispatch: Within 24 hours
- Free Shipping: Yes
- Prority Shipping: Yes, 3-5 days
- Last Updated: 2024/06/13 05:58 +0800
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- Full Refund if you don't receive your order
- Full or Partial Refund , If the item is not as described
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The fee is charged according to the rule of PayPal.
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The fee is charged according to the rule of PayPal.
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Western Union charge US$0.00 banking fee.
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We recommend to use bank transfer for large orders to save on handling fees.
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DHL(www.dhl.com)
$40 limited time offer. -
UPS(www.ups.com)
$40 limited time offer. -
FedEx(www.fedex.com)
$40 limited time offer. -
Registered Mail(www.singpost.com)
Free shipping without minimum order.
