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Circuit Description
2-4
HD(0:15), data lines and HA(0:23), address lines are connected to KBJ10KB00M (memory), MV3315DOQ (image dsp)
and YMU765 (melody IC). It has 64 kbyte SC RAM (0.5 Mbit) and 32 kbyte SC program ROM for bootstrap
loader in the ARM core.
HD(0:15), data lines and HA(0:23), address lines are connected to memory and YMU765 to communicate.
MV3315DOQ(Camera DSP Chip) controls the communication between ARM core and DSP core.
OEn, WEn control the access of memory. KROW, and KCOL recognize the key string input status. The system
communicates with IrDA via IrDA_TXD, IrDA_RXD.
It has J-TAG control pins (TDI/TDO/TCK) for ARM and DSP core. J-SEL signal controls different access to ARM
and DSP core.
ADC(Analog to Digital Convertor) receives the condition of temperature, battery type and battery voltage.
2-2-11. VC-TCXO-214C6-26.0C (26MHz)
This system uses the 26MHz TCXO, VC-TCXO-214C6-26.0C. AFC control signal form PCF5212EL1 controls
frequency from 26MHz x-tal. It generates the clock frequency. This clock is connected to PCF5212EL1, YMU765 and
HD155166BPEB.
2-2-12. Camera DSP (MV3315DOQ)
MV3315DOQ provides rich video functions up to 30-frame display with minimized tasks in the handset main processor
as well as hardware based real-time JPEG compression and decompression. MV3315DOQ directly transmits and
previews the RGB data to the LCD graphic memory by processing the sensor output data according to the
handset's command. It can save the raw RGB data up to VGA resoultion into its image buffer and allows the
host processor to download with scalable sized compressed data.
It utilizes 16 bit data bus for communication with the main processor, including bus interface types.
2-2-13. FM Radio (TEA5761UK)
The TEA5761 is a single chip electronically tuned FM stereo radio for low voltage application with fully integrated IF
selectivity and demodulation.
TEA5761UK provide FM mixer for conversion of the US/Europe (87.5 MHz to 108 MHz) and Japanese FM band (76
MHz to 90 MHz) to IF.Preset tuning to receive Japanese TV audio up to 108 MHz, raster 100 kHz. and is connected to
PCF5212EL1 of I2C.
