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Description
The RDA5812 is a single-chip broadcast FM transceiver with a fully integrated synthesizer, IF selectivity, and MPX decoder. It uses the CMOS process and supports multiple interfaces, requiring the least external components. With its compact 4X4mm package size and adjustment-free design, it is highly suitable for portable devices. The RDA5812 is equipped with a powerful low-IF digital audio processor, ensuring optimum sound quality under varying reception conditions. It also features RDA patented dual synthesizers and an all-digital transmit structure, delivering excellent transmission performance and agility. With support for a frequency band range of 65M~115M and integration of 4K memory, it can be used in simple wireless control appliances such as toys.
Specifications and Features
- CMOS single-chip fully-integrated FM transceiver
- Low power consumption, total current consumption lower than 20mA at 3.0V power supply
- Support worldwide and campus frequency band (65 -115 MHz)
- Digital low-IF tuner with image-reject down-converter, high-performance A/D converter, and internally performed IF selectivity
- Fully integrated digital frequency synthesizer with on-chip RF and IF VCO, and on-chip loopfilter
- All digital transmitter with autonomous search tuning
- Supports integrated Rx/Tx PCB antenna and SNRFM searching
- Includes 4K memory and supports 32.768KHz crystal oscillator
- Digital auto gain control (AGC) and digital adaptive noise cancellation with mono/stereo switch, soft mute, and high cut
- Programmable de-emphasis (50/75 ms) and receive signal strength indicator (RSSI)
- Bass boost, volume control, and support for I2S digital transmitter
- Supports audio power amplifier (32Ω resistance loading) and I2S digital input/output interface
- Line-level analog output voltage and 32.768 KHz, 12M,24M,13M,26M,19.2M,38.4MHz reference clock
- 2-wire and 3-wire serial control bus interface
- Directly supports 32Ω resistance loading
- Integrated LDO regulator with 2.7 to 5.5 V operation voltage
- 4X4mm 24 pinQFN package
Application Scenarios
The RDA5812 is widely used in the following applications:
- Cellular handsets
- MP3, MP4 players
- Portable radios
- PDAs, Notebook PCs
- Wireless toys
Comparison
Advantages- Fully integrated single-chip solution
- Low power consumption
- Compact size and adjustment-free design
- Powerful low-IF digital audio processor for optimum sound quality
- RDA patented dual synthesizers for excellent transmission performance
- Support for a wide frequency band range and integration of 4K memory
- Suitable for portable devices and simple wireless control appliances
Disadvantages- Limited to FM broadcasting, not suitable for other wireless communication protocols
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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:
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Shipping option:
DHL, FedEx, EMS, SF Express, and Registered Air MailShipping tracking:
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How to Buy:
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Popular parts of the same kind
- Datasheet: Download RDA5812
- Chipdatas Part: CD94-RDA5812
- Warehouse: China, Hong Kong
- Dispatch: Within 24 hours
- Free Shipping: Yes
- Prority Shipping: Yes, 3-5 days
- Last Updated: 2024/06/28 03:06 +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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