光功率计原理图

1 2 3 4 5 6 A B C D 654321 D C B A Title Number RevisionSize B Date: 19-Apr-2013 Sheet of File: E:\Study\JustDoIt\Optical Power Meter\Hardware\Optical Power Meter.ddbDrawn By: P051 P042 P033 P024 P015 P006 GND7 D+8 D-9 VDD10 REGIN11 VBUS12 R ST 13 C 2D 14 P4 7 15 P4 6 16 P4 5 17 P4 4 18 P4 3 19 P4 2 20 P4 1 21 P4 0 22 P3 7 23 P3 6 24 P35 25 P34 26 P33 27 P32 28 P31 29 P30 30 P27 31 P26 32 P25 33 P24 34 P23 35 P22 36 P2 1 37 P2 0 38 P1 7 39 P1 6 40 P1 5 41 P1 4 42 P1 3 43 P1 2 44 P1 1 45 P1 0 46 P0 7 47 P0 6 48 U7 C8051F340 S2 WaveLength S4 Units S3 Calibration INT0 INT1 VNEG1 PWDN2 VSUM3 INPT4 VSUM5 VPDB6 VREF7 VLOG 8 BFIN 9 VPS2 10 VOUT 11 VPS1 12 BFNG 13 ACOM 14 U9 AD8304 C17 100P Vref L2 PHOTO C10 1N R28 750 C11 1N V ou t R36 6.02K C55 22N C54 33N C16 100P C12 1N A01 A12 A23 GND4 SDA 5 SCL 6 WP 7 VCC 8 U22 AT24CXX SCL SDA E2PROM存储电 路 复位电路 对数放大器电路 按键电路 R ST /C 2C K C18 0.1U C19 0.1U C20 0.1U G N D 1 V C C 2 U6 电源 +9V G N D 1 VOUT 2VIN3 U1 LM1117-ADJ C14 1UF + C13 10UF 1 2 3 4 5 6 7 8 9 10 U21 JTAG C 2D C2D RST/C2CK R10 1K RST/C2CK C2 1U + C1 10U V SS 1 V D D 2 V 0 3 R S 4 R /W 5 E N 6 D B 0 7 D B 1 8 D B 2 9 D B 3 10 D B 4 11 D B 5 12 D B 6 13 D B 7 14 PS B 15 N C 16 R ST 17 N C 18 L E D _A 19 L E D _K 20 U5 12864 TXD RXD V re f V ou t SDA SCL P30 P31 P32 P33 P34 P35 P3 6 P3 7 P3 0 P3 1 P3 2 P3 3 P3 4 P3 5 P3 6 P3 7 INT0 INT1 T 0 T0 电源电路 R11 1K R S R W E N C B RS RW EN CB C1+1 V+2 C1-3 C2+4 C2-5 V-6 T2out7 R2in8 R2out 9 T2in 10 T1in 11 R1out 12 R1in 13 T1out 14 GND 15 VCC 16 U8 MAX3232 + C21 1U + C52 1U + C53 1U + C51 1U+ C22 1U 1 6 2 7 3 8 4 9 5 J1 DB9 TXD RXD +3.3V +3.3V C7 1U +5V+5V+5V +5VA +3.3V R34 10K R29 10K GND1 R SE T 2 VCC 3 U4 MAX809 +3.3V C4 1U S1 SW-SPST C56 CAP L1 LED R30 10K R31 10K +3.3V +3.3V VCC 1 D- 2 D+ 3 GND 4 USB2 USB2.0 D+ D- VBUS D+ D- VBUS G N D 1 VOUT 2VIN3 U2LM1117-ADJ C5 1U + C15 10UF R2 100 R8 300 R7 300 R1 100 +5VA C3 1U + C8 10U G N D 1 VOUT 2VIN3 U3 LMS1117-ADJ +5V R4 30 R9 51 C6 1U + C9 10U +3.3V R32 10K +3.3V R33 10K R35 10K +3.3V +3.3V 电源地，数字地，模拟地连到一起 R26 NC R27 NC