功能特点
RDA5851 is a high performance, highly integrated multi-media system-on-chip solution with bluetooth connectivity.
Integrating all essential electronic components, including baseband, bluetooth transceiver, power management, FM receiver onto a single system on chip, RDA5851 offers best in class bill of material, space requirement and cost/feature ratio for multi-media wireless connectivity platform.
Built around a cost effective 32-bit XCPU RISC core running at up to 312MHz with 4k of Instruction cache and 4k of Data cache, RDA5851 offers plenty of processing power for multimedia applications. A high performance proprietary 16/32-bit digital signal processing engine can further improve overall performance and user experience when performing complex multimedia tasks.
It is also packed with impressive connectivity for easy scalability of the system, allowing glue less interfaces to camera and multimedia companion chips, SDMMC Memory Cards and SPI devices, LCD modules and USB (slave, full speed).
Additionally, RDA5851 integrates a FM tuner and a Bluetooth module which completely include digital, analogue and RF function. And they can easily work only with a few passive components as filter or matching network.
RDA5851 is available in a small footprint, fine pitch, 12 X10, 203 ball TFBGA package.
参数指标
+ External Memory Interface
- Integrated 32Mb 2.8V Flash on chip, and also Supports external SPI Flash
- Integrated PSRAM on chip, 16Mb size
- Power efficient using retention technology to avoid floating lines
- Flexible IO voltage
+ Multimedia
- Support camera interface up to 3Mpix sensors with 8 bit parallel or 1/2/4 data series interface,Support CSI camera interface
- Support LCD module interface with 8 bit parallel interface or SPI series interface
- Support up to 480X640 resolution
- 4-layers blending graphical engine capable of resizing and YUV2RGB conversion
- Proprietary 16/32-bit digital signal processing engine to improve computation performance
+ Power Management
- Power On reset control
- lnternal 32K OSC for standby/ shutoff/ sleep state
- Battery charger (from USB or AC charger)
- lntegrated all internal voltages from VBAT
- Provide all LDOs for external components
+ User Interface
- 8x8 Keypad scanner with multiple key detection, support ADC serial interface Keypad
- Alerter
- Light Pulse Generator for blinking LED
- Pulse Width Modulator for Keyboard or backlight control
- Touch screen interface
- LED drivers for LCD and keyboard backlight
- Calendar (Real Time Clock) with alarm
+ Connectivity
- USB 1.1 Device
- 2 UART interface
- 1 SD controller
- l SD/SPI controller
- SPI with multiple chip select
- I2C controller
- General Purpose I/Os
- 2 GPADC, 10bits, 2 channels
+ Audio
- 2 channels voice ADC, 8kHz, 13 bits/sample for headset and on-board microphone
- Voice DAC, 8kHz,13bits/sample for receiver
- High fidelity Stereo DAC, up to 48kHz, 16 bits per sample
- Stereo Audio speaker driver
- 1.5W differential output stereo amplifier for loudspeaker, Class K
- Stereo analog audio line input
+ Debug
- Host debug interface allowing non intrusive in depth investigation
- GDB debugger
- Execution logger and profiling through debug port
- High level text based debugging using Host debug or USB
+ FM
- lntegrated Broadcast FM tuner which can be tuned world-wide frequency band
+ Bluetooth
- lntegrated Bluetooth SoC complaint with 2.1+ EDR standard
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