1. 1 SGH-X640 SVC TRAINING H/W BASEBAND PART MINSOO, LEE DATE : 10. MAR. 2005 PLACE : GUMI, KOREA

2. 2 CONTENTS BLOCK DIAGRAM PLACEMENT DIAGRAM BASEBAND PART Power on Memory Camera Melody Charging part SIM Microphone Earpiece Key

3. 3 BLOCK DIAGRAM

4. 4 MAJOR COMPONENT – PBA TOP VIEW Antenna pad Antenna Switch PAM TX VCO 32KHz OSC. PMIC SIM connector Dual LDO ESD Protection IC Backup BAT. Audio-Melody Switch RF main chip VC-TCXO(26MHz) LCD connector BB main chip Backend IC Memory Melody IC Charging IC SAW filter

5. 5 MAJOR COMPONENT – PBA BOTTOM VIEW Hall IC Key load switch

6. 6 POWER ON JIG VBAT  CHARGER_OK  PMIC(AUXON)  PMIC(RSTON)  OM6357 DEVICE RECOGNITION REC1,REC2, REC3 RESET SIGNAL Memory --- VDD3 Camera--- IMAGE_RESET Melody--- M_RST LCD--- RESET_2.8V

7. 7 32KHz Clock system clock and SIM clock RSTON Active-Low reset for in / external circuitry supplied by DVDD1. The RSTON keeps HIGH after the power supply modules are enabled. POWER ON

8. 8 MEMORY - schematic

9. 9 MEMORY - comment Structure 128M ROM + 128M NAND + 64M SCRAM Chip selection CS_NAND, NCSFLASH, HA(23)

10. 10 CAMERA - schematic

11. 11 CAMERA - comment Signal IMAGE_INT : recognize the event HWR_N, HRD_N : write/read on the backend IC HD(0:15) : OM6357, memory data LD(0:15) : LCD data Y(0:7) : YUV image data from image sensor module to Alpha chip(MV317SAQ) Standby: idle, active control signal

12. 12 MELODY - schematic

13. 13 MELODY - comment Signals MEL_13M : Driving clock from VC-TCXO AMP_N, AMP_P : Output from Yamaha Melody IC HWR_N, HRD_N : write/read enable HD(0:7) : melody data

14. 14 CHARGING PART - schematic

15. 15 CHARGING PART - comment Signals V_EXT_CHARGE : supply from the TA around 5.0V, 550mA CHARGER_ON : charger existence. CHG_ON : control charger pin. If stopping charging, it would be HIGH. MES_BATT : indicating battery voltage level. END_OF_CHARGE : charger status pin. In charging mode : HIGH Full charged mode : LOW

16. 16 SIM – schematic

17. 17 SIM - comment Signals SIM_VCC : supply voltage for SIM card SIM_RST : reset for SIM card SIM_CLK : clock to SIM card SIM_IO : I/O line to/from SIM card

18. 18 MICROPHONE Signals MIC_P, MIC_N : input from mic

19. 19 EARPIECE - schematic

20. 20 EARPIECE - comment Signals JACK_EN M_SEL JACK_ENM_SEL AUDIO00 10 MELODY01 TMI11

21. 21 ON/OFF, SIDE KEY - schematic ONKEY SIDE KEY Signals ONKEY_N : controls Power ON and OFF KBIO(3), KBIO(4), KBIO(7)

22. 22 KEY DATA INPUT/OUTPUT - schematic Signals KBIO(0:7) : key scanning procedure is fully processed in the main CPU ‘ SEND ’ key : KBIO(0:1)

23. 23 KEY BACKLIGHT Signals VDD_KEY : controls ON/OFF, supply voltage for LEDs

24. 24 QUESTION