A high performance, high integrated system-on-chip solution for low cost, low power GSM/GPRS mobile phones.
RDA8851C is a high performance, highly integrated system-on-chip solution for low cost, low power,GSM/GPRS mobile phone.
Integrating all essential electronic components, including baseband, quad band RF transceiver, power management, FM receiver onto a single system on chip, RDA8851C offers best in class bill of material, space requirement and cost/feature ratio for complete phone handsets.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, RDA8851C 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).
RDA8851C is GPRS Class 10 enabled, and supports Full Rate (FR), Half Rate (HR), Enhanced Full Rate (EFR) and Adaptive Multi Rate (AMR) voice coders. It also supports simultaneous dual network operation and integrates a SIM controller with integrated level shifters that can support three SIM cards.
Additionally, RDA8851C 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..
RDA8851C is available in a small footprint, fine pitch, 12 X10, 203 ball TFBGA package
● External Memory Interface
Integrated 32Mb 2.8V Flash on chip, and also Supports external SPI Flash
Integrated PSRAM on chip, 64Mb size
Power efficient using retention technology to avoid floating lines
Flexible IO voltage
● GSM/GPRS Modem
GPRS Class 10
Quad bands integrated transceiver
Supports HR, FR, EFR, AMR voice codec
Triple SIM controller with integrated level shifters
Provide a complete GSM/GPRS data path with integrated RF transceiver, Saw-Less, only needs external PA
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
Internal 32K OSC for standby/ shutoff/ sleep state
Battery charger (from USB or AC charger)
Integrated 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
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
USB 1.1 Device
2 UART interface
1 SD controller
1 SD/SPI controller
SPI with multiple chip select
General Purpose I/Os
2 GPADC, 10bits, 2 channels
2 channels voice ADC, 8kHz, 13 bits/sample for headset and on-board microphone
Voice DAC, 8kHz, 13 bits/sample for receiver
High fidelity Stereo DAC, up to 48kHz, 16bits per sample
Stereo Audio speaker driver
1.5W differential output stereo amplifier for loudspeaker, Class K
Stereo analog audio line input
Host debug interface allowing non intrusive in depth investigation
Execution logger and profiling through debug port
High level text based debugging using Host debug or USB
Integrated Broadcast FM tuner which can be tuned world-wide frequency band
Integrated Bluetooth SoC complaint with 2.1 + EDR standard
Multi-band GSM/GPRS Mobile Handsets, PDAs, data terminals and Modems: GSM 850, GSM900, DCS1800, PCS 1900.
The high level of integration achieved on RDA8851C allows for highly featured phone without increasing the BOM.