SQ909+ov9712行车记录器原理图

SQ909B-L(OV9712+8x16M+SPI+25

4

3

2

1

C1 X1 30pF/0603 C0603 C3 X1 12MHz CRYSTAL T206-S R1 1M/0603 R0603 X2 30pF/0603 C0603 GND
D

GND GND

C2

Frames Mode Select
V33V R2 TV_DET J5 47K/0603 R0603-3 1 2 3 Frame_SET 10K/0603 R0603

RESET
V33V S1 SW SMD-180 SWD5.0-1 2 RESET

Keep Layout
R3 U1 V33V 56K/0603 RT9818C-27PV R0603 SOT-23 1 3 RESET VDD GND C4 1uF/0603 C0603 GND GND V33V J1 47K/0603 R0603-3 1 2 3 TFT_D1

0.1uF/0603 C0603 SD_WR SD_DQMU SD_DQML DATA08 DATA07 DATA09 DATA06 DATA10 DATA05 DATA11 DATA04 GND DATA12 DATA03 DATA13 DATA02 DATA14 DATA00 DATA15 DATA01 V18V GND X2 X1 GND CLK_OUTA RESET Frame_SET SN_RESET V33V Frame_SET TV_DET1 /CE

X'tal

GND 1

GND

F/W Mode Select L=Standalone , H=Monitor
D

128 127 126 125 124 123 122 121 120 119 118 117 116 115 114 113 112 111 110 109 108 107 106 105 104 103 102 101