제품에대한 EMC 설계 대책사례 마루인포 신주호선임 2009. 5. 29
목차 1. Network Camera System 2. Navigation 2-1. PND (Portable Navigation Device) 2-2. AVN (Audio Video Navigation) 2
1. Network Camera System 1. U-City 주차관리시스템 그림 1-1. 외부모양 그림 1-2. 내부모양 3
1-1. 전체블럭도 1. Network Camera System Server 8-Pin Ethernet RJ-45 Con CPU Module 4Pin 1/3 CCD CAMERA MODULE BTB-Con POWER Module Power & Management System MICIOM 4
1. Network Camera System 1-2. 상세블록도 (CPU Module Block) PHON JACK 3-PIN Con UART 1 Main Processor JTAG UART0 JTAG UART CON I/F HOST PC USB-C USB PHON JACK 3-PIN Con TV ENCODER CVBS S3C6410 USB-H UART 0 USB 3P Con DEBUG PORT AHB/AXI MEMORY BUS BUS Bus Bus NOR 2MB NAND 64MB Ethernet Controller BUS AHB/AXI MEMORY BUS Power Management PWR CTR GPIO CAMERA INTERFACE MODULE ITU-R BT.656 TV DECODER CVBS Camera Module 5
1. Network Camera System 1-3. 상세블록도 (CPU Memory I/F Block) NOR FLASH (2MB) 16-Bit BUS Con /CS0 BUS AXI DDR SDRAM DDR1 SDRAM BUS mddr SDRAM (64MB) NAND FLASH (64MB) 8-Bit BUS /CS2 AHB MEMORY S3C6410 6
1. Network Camera System 1-4. 상세블록도 (CPU-POWER BD PWR I/F Block) /RESET PWRRGTON PWR & RESET Block MSG1 POWER Module 80-Pin Con MSG2 MSG3 DCIN_DET GPIO 3SC6410 +12V MICOM +5V +3.3V-CPU +2.5V-CPU +1.8V_DDR Power System +1.2V_CPU GND_PWR 7
1. Network Camera System 1-5. 상세블록도 (CPU UART I/F Block) BTB Con PHON JACK 3-Pin GND RS232C Transceiver TXD0 RXD0 UART0 POWER Module S3C6410 PHON JACK 3-Pin GND RS232C Transceiver TXD1 RXD1 UART1 8
1. Network Camera System 1-6. 상세블록도 (CPU-USB/JTAG I/F Block) 8 Pin Con JTAG_CPU (/TRST, TDI, TDO, TMS, TCK, /HW_RST ) J-TAG 5V-USB USB CON HDP, HDM USB HOST 5V-OVBUS 5V Load Switch /VBUS_ON 5V-USB GPIO USB CON OUSB BUS (ODP, ODM, USB_ID ) USB OTG S3C6410 9
1. Network Camera System 1-7. 상세블록도 (CPU Ethernet RJ45 Block) RJ45 Con TXD+ TXD- RXD+ RXD- Ethernet Controller /LAN_CS /LAN_WE ADDR, DAT S-BUS AHB MEMORY BUS S3C6410 /LAN_OE LAN_IRQ GPIO 10
1. Network Camera System 1-8. EMC/RE SCAN (Pilot Board Pre-scan) 11
1. Network Camera System 1-9. EMC/RE SCAN (Ethernet Ping Test Scan) 12
1. Network Camera System 1-10. EMC/RE 원인분석 (Ethernet Ping Test Fail 대책 ) HOST I/F MAC PHY TX+ TX- RX+ RX- C1 C2 Ethernet Controller Solution : C1, C2 (10pF) 적용 13
1. Network Camera System 1-11. EMC/RE SCAN (Ethernet 대책후 Ping Test) 14
2-1. PND 2-1. Portable Navigation Device 그림 2-1. 외부모양 그림 2-2. 내부모양 15
2-1. Portable Navigation Device 2-1-1. 전체블럭도 GPS Ext- ANT Int-Active GPS ANT TDMB Ext- ANT Target Board SPK SPK Back Light TFT 800 x 400 7 LCD Touch Screen 16
2-1. Portable Navigation Device 2-1-2. 상세블록도 (CPU Module I/F Block) LCD Back Light LCD 40P Main Processor I/F JTAG UART1 JTAG UART Debug Port Touch Screen Audio Power AMP Audio Power AMP Audio(L) 4P Touch I/F TITAN-I TT240 AC 97 Audio AC 97 AC97 Controller Codec. Audio(R) SD/SDIO /MMC4/ CE-ATA SDIO/SD SD SD0 USB OTG ULPI VIP UART1 Data Bus Control Signal ITU-R BT.565 ITU-R BT.565 UART UTMI& ULIP USB-DP USB-DM TV DECODER TDMB MICOM SD1 Power System 17
2-1. Portable Navigation Device 2-1-3. 상세블록도 (LCD/Touch/Back Light I/F Block) Back Light CON-40P LED Driver Controler +5V X_BLT_ON GPIO 4.3 TFT LCD +3.3V DGND-LCD 40-Pin PFC RED (6-Bits) GREEN (6-Bits) BLUE (6-Bits) LCD I/F Titan-I TT240 PCLK, DE,N, PWM ( 3-Bits) CON-4P Touch Screen 4-Pin PFC X+,Y+,X-,Y- (4-Pin) AC 97 Audio Codec. AC 97 LINK (5-Pin) PEN_IRQ AC97 Controller GPIO 18
2-1. Portable Navigation Device 2-1-4. 상세블록도 (Rear View Camera I/F Block) AC 97 Audio Codec. TDMB AC 97 LINK (5-Pin) AC97 Controller Titan-I TT240 Rear camera REAR_CVBS TV Decoder ITU-R.BT656 VIP SCL0 SDA0 I2C 19
2-1. Portable Navigation Device 2-1-5. 상세블록도 (Audio Power-AMP I/F Block) Audio Power AMP Audio Power AMP CPU_DAC_L+ CPU_DAC_R+ CPU_DAC_L- CPU_DAC_R- AC 97 Audio Codec. 3.3V-AUD AC 97 LINK (5-Pin) AC97 Controller Titan-I TT240 20
2-1. Portable Navigation Device 2-1-6. 상세블록도 ( Memory I/F Block) NAND FLASH (64MB) 8-Bit BUS /DF_CS_B0 DDR1 SDRAM BUS DDR1 SDRAM (64MB) /DF_RY_BY /DF_WE /DF_RE DDR SDRAM DDR1 SDRAM BUS DDR1 SDRAM (64MB) /DF_CLE /DF_ALE RISC Interface Titan-I TT240 S-BUS 21
2-1. Portable Navigation Device 2-1-7. PCB GND Plane 분리와단일에 1/2 Layer 비교 22
2-1. Portable Navigation Device 2-1-8. PCB GND Plane 분리와단일에 3/4 Layer 비교 23
2-1. Portable Navigation Device 2-1-9. PCB GND Plane 분리와단일에 5/6 Layer 비교 24
2-1. Portable Navigation Device 2-1-10. PCB GND Plane 분리와단일에 7/8 Layer 비교 25
2-1. Portable Navigation Device 2-1-11. 분리 Ground 시료 -1/2 (Pilot Board Pre-scan) [db(μv/m) 80 70 60 50 Electric Field Strength 40 30 20 10 0-10 -20 30.000 50.000 100.000 500.000 1000.000 Frequency [M Hz] 26
2-1. Portable Navigation Device 2-1-12. 분리 Ground 시료 -2/2 (Pilot Board Pre-scan) [db(μv/m) 80 70 60 50 Electric Field Strength 40 30 20 10 0-10 -20 30.000 50.000 100.000 500.000 1000.000 Frequency [M Hz] 27
2-1. Portable Navigation Device 2-1-13. 통합 Ground 시료 -1 (Pilot Board Pre-scan) [db(μv/m) 80 70 60 50 Electric Field Strength 40 30 20 10 0-10 -20 30.000 50.000 100.000 500.000 1000.000 Frequency [M Hz] 28
2-1. Portable Navigation Device 2-1-14. EMC/RE SCAN (LCD Panel Ground 보강 ) [db(μv/m) 80 70 60 50 Electric Field Strength 40 30 20 10 0-10 -20 30.000 50.000 100.000 500.000 1000.000 Frequency [M Hz] 29
2-1. Portable Navigation Device 2-1-15. EMC/RE SCAN(LCD RGB Signal Bead 적용 ) [db(μv/m) 80 70 60 Electric Field Strength 50 40 30 20 10 0-10 -20 30.000 50.000 100.000 500.000 1000.000 Frequency [M Hz] 30
2-1. Portable Navigation Device 2-1-16. EMI 와 GPS Ant matching (VSWR) VSWR (Voltage Standing wave ratio) : 1.1413 (손실0.42%, 통과99.57%) 31
2-1. Portable Navigation Device 32
2-1. Portable Navigation Device 2-1-17. EMI 와 GPS Sensitivity (CNR) A 사 GPS(RF+BB) Module B 사 GPS(RF+BB) Module 33
2-1. Portable Navigation Device 2-1-18. Near Filed 상태의 EMI Noise PCB Scan Non Shield CPU CAN 34
2-1. Portable Navigation Device Shield CPU CAN 35
2-1. Portable Navigation Device Bottom CPU Area 36
2-1. Portable Navigation Device Front LCD Area 37
2-1. Portable Navigation Device Non Shield DMB Area 38
2-1. Portable Navigation Device 2-1-19. EMI 와 DMB Ant Gain (Passive) MCX 앞단인경우 MCX 뒤단인경우 39
2-1. Portable Navigation Device MCX 뒤단에 ESD Diode 없는경우 MCX 뒤단에 ESD Diode 제거, 3pF 적용한경우 40
2-1. Portable Navigation Device 2-1-20. EMI 와 DMB Wireless Sensitivity 41
2-1. Portable Navigation Device 42
2-1. Portable Navigation Device 43
2-1. Portable Navigation Device 2-1-21. EMI 와 DMB Transmission Line SNR Target Board 에전원 Off 한 Passive 상태 Target Board 에전원 On 한 Active 상태 기구물 Case 에 EMI 도료적용한상태 모든상태 44
2-2. Audio Video Navigation 2-2. AVN 그림 2-3. 외부모양 그림 2-4. 외부모양 45
2-2-1. 전체블럭도 2-2. Audio Video Navigation 46
2-2. Audio Video Navigation 2-2-2. 상세블록도 (CPU Module I/F Block) 47
2-2. Audio Video Navigation 2-2-3. 상세블록도 (CPU-Power, SD I/F Block) 48
2-2. Audio Video Navigation 2-2-4. 상세블록도 (CPU-LCD, Touch, BLT I/F Block) 49
2-2. Audio Video Navigation 2-2-5. 상세블록도 (CPU-GPS I/F Block) 50
2-2. Audio Video Navigation 2-2-6. 상세블록도 (CPU-DMB I/F Block) 51
2-2. Audio Video Navigation 2-2-7. 상세블록도 (CPU-Audio Power AMP I/F Block) 52
2-2. Audio Video Navigation 2-2-8. 상세블록도 (CPU-Memory I/F Block) 53
2-2. Audio Video Navigation 2-2-9. 상세블록도 (CPU-Power Manager I/F Block) 54
2-2. Audio Video Navigation 2-2-10.EMC/RE SCAN (GMW3097 Spec Pre-scan ) 그림 2-5. 50KHz~207Mhz[H] 그림 2-6. 150KHz~207Mhz[V] 55
2-2. Audio Video Navigation 그림 2-7. 38Mhz~608Mhz[V] 56
2-2. Audio Video Navigation 그림 2-7. 1.576~1.583GHz[H] 그림 2-7. 1.576~1.583GHz[V] (Note) GPS Frequency : 1575.42 MHz ± 1.023Mhz 57
2-2. Audio Video Navigation 그림 2-8. 150K~608MHz 58
2-2. Audio Video Navigation 2-2-11. 분리 / 단일 GND PCB 비교 (EDS-TE-5524 Spec Scan ) 그림 2-9.30M~1GHz[H] ( 분리 GND) 그림 2-10. 30M~1GHz[H] ( 단일 GND) 59
2-2. Audio Video Navigation 그림 2-11.30M~1GHz[V] ( 분리 GND) 그림 2-12. 30M~1GHz[V] ( 단일 GND) 60
2-2. Audio Video Navigation 2-2-12. DMB 수신문제로 Audio AMP 대책 Connector 단에 ᅲ 형 Filter 적용 61
2-2. Audio Video Navigation 그림 2-10 과같음 그림 2-12 과같음 62
2-2. Audio Video Navigation 2-2-13. EMI Source 분석및대책 Touch X+,Y+,X-,Y- Signal Line 0Ω 47Ω 24.576Mhz 와 Xin, Xout 사이 Bead 210Mhz@2200Ω 적용 63
2-2. Audio Video Navigation 64
2-2. Audio Video Navigation 65
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