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Description
The PBL38813 is an IC chip that is designed to implement a high-performance, voice-switched, loudspeaking, "hands-free" telephone. The chip contains all the necessary circuitry, amplifiers, detectors, comparators, and control functions. The gain dynamics are selectable (25dB or 50dB) via a separate pin. The chip also includes a background noise detector in the transmitting channel that reduces the influence of continuous external noise signals to the switching.
Specifications and Features
- Product Model: PBL38813
- Product Category: IC Chips
- No. of Pins: 24
- Minimum External Components Needed for Functionality
- Selectable Gain Dynamics (25 or 50 dB)
- Direct Telephone Line Powered Solution (Patented)
- Low Power Consumption: ≈1mA at 3.3V (typical) for Speech Switching, Audio Power Amplifier Quiescent Current ≈1mA
- Drives a 25-50 Ohm Loudspeaker Without a Transformer
- Background Noise Compensation in the Transmitting Channel with Hold Function at Receive
- Input Amplifiers of Both Channels Have Balanced Inputs
- Excellent Noise Performance
- Encapsulated in 24-pin Plastic "Skinny" DIP and 24-pin SO
Application Scenarios
The PBL38813 IC chip can be used in various applications like high-performance, loudspeaking, "hands-free" telephones, intercom systems, and voice-controlled security systems.
Comparison
Advantages- Minimum external components required for functionality
- Selectable gain dynamics for flexibility
- Low power consumption
- Direct telephone line powered solution reduces the need for additional power sources
- Drives a 25-50 Ohm Loudspeaker Without a Transformer
Disadvantages- The chip is only encapsulated in 24-pin packages, which may not be suitable for all applications
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Datasheet
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Shopping guide
Delivery period:
- - Will ship out in 2-3 days
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- - DHL eCommerce: 12-22 business days
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Shipping fee:
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Shipping option:
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Additional Information
- Datasheet: Download PBL38813
- Chipdatas Part: CD89-PBL38813
- Warehouse: China, Hong Kong
- Dispatch: Within 24 hours
- Free Shipping: Yes
- Prority Shipping: Yes, 3-5 days
- Last Updated: 2024/10/01 13:51 +0800
Refund
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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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Payment Method
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The fee is charged according to the rule of PayPal.
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