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Description
PBL38573 is a monolithic integrated speech transmission circuit designed for use in electronic telephones. It is specially designed for telephone lines with a constant current feed, with maximum line current of less than 130 mA in DIL package (100 mA in SO package). This component can accommodate both a low-impedance dynamic or an electret microphone. It has a signal summing point at the transmitter input for DTMF dialer, monitor, or hands-free signals.
Specifications and Features
- Minimum number of external components is required for function, with only one filtered DC supply, 6 capacitors, and 10 resistors.
- Easy adaptation to various market needs.
- Mute control input for operation with DTMF-generator.
- Transmitter and receiver gain regulation for automatic loop loss compensation. Disconnectable.
- Extended current and voltage range of 5-130mA (DIP), down to 2V.
- Differential microphone input for good balance to ground.
- Balanced receiver output stage.
- Stabilized DC supply for low current CMOS dialers and electret microphones.
- Short start-up time.
- Excellent RFI performance.
- Available in 14-pin DIP and SO packages.
Application Scenarios
This component is ideal for use in electronic telephones with constant current feed telephone lines. It can be used in various market needs with easy adaptation. The transmitter and receiver gain regulation and excellent RFI performance make it suitable for different application scenarios requiring clear speech transmission.
Comparison
Advantages- Easy adaptation to various market needs
- Excellent RFI performance
- Transmitter and receiver gain regulation for automatic loop loss compensation
Disadvantages- May not be suitable for telephone lines with a maximum line current exceeding 130mA in DIL package or 100mA in SO package
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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:
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- - 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 PBL38573
- Chipdatas Part: CD92-PBL38573
- Warehouse: China, Hong Kong
- Dispatch: Within 24 hours
- Free Shipping: Yes
- Prority Shipping: Yes, 3-5 days
- Last Updated: 2024/09/29 04:20 +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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Free shipping without minimum order.