C14 1UF R11 1K L1 LED U6 电源 +9V 2 C C V D N G 1 R28 750 D C B A 1 LM1117-ADJ U2 3 VIN VOUT D N G 2 1 + C1 10U C2 1U U1 LM1117-ADJ 3 VIN VOUT D N G 2 S1 SW-SPST + C13 10UF 1 +5VA + C8 10U C3 1U 电源电路 +5V 3 U3 LMS1117-ADJ VIN VOUT D N G 2 1 + C15 10UF C5 1U 2 R1 100 R7 300 R2 100 R8 300 3 4 5 6 复位电路 U4 MAX809 1 GND T E S R VCC 3 +3.3V C4 1U 电源地，数字地，模拟地连到一起 R26 NC R27 NC 2 R10 1K RST/C2CK +3.3V + C9 10U C6 1U R4 30 R9 51 USB2 VCC D- D+ GND USB2.0 VBUS D- D+ 1 2 3 4 0 T f e r V t u o V U5 12864 A K _ _ D D E E L L T S R C N C N B S P 7 B D 6 B D 5 B D 4 B D 3 B D 2 B D 1 B D 0 B D N E W R / D D V S S V S R 0 V 0 2 9 1 8 1 7 1 6 1 5 1 4 1 3 1 2 1 1 1 0 1 9 8 7 6 5 4 3 2 1 B C 7 3 P 6 3 P 5 3 P 4 3 P 3 3 P 2 3 P 1 3 P 0 3 P N E W R S R +5V +5V +5V +5VA R29 10K C16 100P C12 1N R34 10K t u o V C54 33N R36 6.02K C55 22N 1 6 2 7 3 8 4 9 5 J1 DB9 C10 1N C17 100P Vref L2 PHOTO C11 1N 对数放大器电路 1 2 3 4 5 6 7 U9 VNEG PWDN VSUM INPT VSUM VPDB VREF AD8304 ACOM BFNG VPS1 VOUT VPS2 BFIN VLOG 14 13 12 11 10 9 8 C22 + 1U +3.3V 1 2 3 4 5 6 7 8 U8 MAX3232 VCC GND T1out R1in R1out T1in T2in R2out C1+ V+ C1- C2+ C2- V- T2out R2in 16 15 14 13 12 11 10 9 C51 + 1U TXD RXD 2 C21 C52 + 1U + 1U C53 1U + 1 +3.3V +3.3V R31 10K R30 10K +3.3V VBUS 8 4 7 4 6 4 5 4 4 4 3 4 2 4 1 4 0 4 9 3 8 3 7 3 RXD TXD INT1 INT0 SCL SDA D+ D- C56 CAP 1 2 3 4 5 6 7 8 9 10 11 12 P05 P04 P03 P02 P01 P00 GND D+ D- VDD REGIN VBUS 6 0 P 7 0 P 0 1 P 1 1 P 2 1 P 3 1 P 4 1 P 5 1 P 6 1 P 7 1 P 0 2 P 1 2 P U7 C8051F340 T S R D 2 C 7 4 P 6 4 P 5 4 P 4 4 P 3 4 P 2 4 P 1 4 P 0 4 P 7 3 P 6 3 P 3 1 4 1 5 1 6 1 7 1 8 1 9 1 0 2 1 2 2 2 3 2 4 2 7 3 P 6 3 P C2D 2 4 6 8 10 K C 2 C T S R / D 2 C RST/C2CK 1 3 5 7 9 U21 JTAG 3 4 P22 P23 P24 P25 P26 P27 P30 P31 P32 P33 P34 P35 36 35 34 33 32 31 30 29 28 27 26 25 RS RW EN CB P30 P31 P32 P33 P34 P35 按键电路 +3.3V C18 0.1U S2 C19 0.1U S3 WaveLength Calibration R33 10K T0 S4 Units C20 0.1U INT0 INT1 +3.3V R32 10K R35 10K +3.3V E2PROM存储电 路 1 2 3 4 U22 A0 A1 A2 GND VCC WP SCL SDA AT24CXX +3.3V C7 8 7 6 5 1U SCL SDA Title Size B Date: File: 5 Number Revision 19-Apr-2013 E:\Study\JustDoIt\Optical Power Meter\Hardware\Optical Power Meter.ddb Sheet of Drawn By: 6 D C B A