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Description
TJ3940S-1.2 is a highly integrated digital music system solution for audio players and other devices. It includes an audio decoder with embedded RAM and ROM, ADPCM record capabilities, USB interface, and support for WMA and other digital audio standards. With low power consumption and a flexible on-chip DC-DC converter, it provides long battery life and is compatible with various battery configurations. The built-in Sigma-Delta D/A includes a headphone driver for driving low impedance headphones, and the A/D supports voice recording and FM radio integration. It is an all-in-one solution for highly optimized digital audio players.
Specifications and features
- Support WMA Decoder, bit rate 32-384Kbps, 8-48KHz
- Digital Voice Recording (ADPCM)
- On-chip Multi-use RAM with MCU and DSP memory
- Integrated MCU with DSU, compatible with Z80 instruction set
- External Nand type Flash and Smart Media Card support
- Supports various memory card interfaces
- Support 24MHz OSC with on-chip PLL
- 2-channel DMA, 1-channel CTC, and interrupt controller
- Dynamic power management for energy saving
- Support USB2.0 Compliance PHY+SIE
- Built-in Stereo 16-bit Sigma-Delta D/A
- GPIOs for all applications
- Support I2C/SPI/UART/IR/SPDIF interface
- Support external LCM driver interface
- Support FM Radio input and 40-level volume control
- Stereo 16-bit Sigma-Delta A/D for Microphone/FM Input
- MCU running at 48MHz (typ)
- D/A+PA SNR: without A weight >91dB
- A/D SNR >90dB, support difference/2-channel microphone
- Headphone driver output 2x20Mw @16ohm
- Standby Leakage Current: <50uA (whole system)
- Low Power Consumption: <[email protected] at typical audio decoder solution
- Package at LQFP-64 (7x7mm)
Application Scenarios
It is ideal for audio players and devices that require a highly integrated digital music system solution. The TJ3940S-1.2 can be used in various portable audio devices, USB-Disk devices, and other applications where audio decoding, voice recording, and FM radio integration are needed.
Comparison
Advantages- Highly integrated solution with embedded RAM and ROM
- Low power consumption and long battery life
- Flexible on-chip DC-DC converter supports various battery configurations
- Supports multiple digital audio standards
- Built-in Sigma-Delta D/A with headphone driver
- A/D supports voice recording and FM radio integration
Disadvantages- Limited memory options
- Limited GPIOs
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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 TJ3940S-1.2
- Chipdatas Part: CD94-TJ3940S-1.2
- Warehouse: China, Hong Kong
- Dispatch: Within 24 hours
- Free Shipping: Yes
- Prority Shipping: Yes, 3-5 days
- Last Updated: 2024/06/03 13:41 +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. -
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FedEx(www.fedex.com)
$40 limited time offer. -
Registered Mail(www.singpost.com)
Free shipping without minimum order.
