AV Sender发射机电路原理与分析.pdf

《AV Sender发射机电路原理与分析.pdf》由会员上传分享，免费在线阅读，更多相关内容在行业资料-天天文库。

1、工程师培训资料AVSender发射机电路原理与分析一、方框图2二、电路原理图3三、电性能规格4四、电路原理与分析4（1）2.4GHzRF发射系统4-11（2）433MHzRF遥控接收系统12-17A超再生检波接收系统12-15B超外差低中频接收系统RX3400（带PLL）15-16C超外差低中频接收系统RX33100A（无PLL）16-18（3）电源部分18"第1页共18页工程师培训资料一、方框图ANT433.92MHz共基超再生低通低频整形红外红外高放检波滤波放大限幅驱动发射433MHzRF遥控接收系统原理框图ANTL-Audio预加重调频

2、2.4GHzR-Audio预加重调频滤波放大Video预加重VCO4MHz锁相环晶振CPU2.4GHzRF发射系统原理框图"第2页共18页工程师培训资料二、电路原理图12345678VCC+12V103104103C83C74C87C86C85ANT2VCC101242C84C82R78C32C61R59103104R63R64R65103R71104R72NCNCIR/JACK147210568210547210R47310RC72225C73105C81562R67R70R57477/10VD4R77Sen:-72dBm104561R54

3、C64R563356L34.3p333R61R623906C75R73C76Q15C712SC3356(R25)1.5T223474Q7C70Q16LS4148104477/10VIRPLUGC63105C363904271DQ1451pC66C69C8DC67C685.1p271102271821472C57Q547pD2Q6C77Q175.6pC65390468339043906IR1L1R52C60R53470pD3Q840550601025.6PLS4148L2R68R69C95R66R74R75R763904471R60C98103

4、152C444055060102102NC472332331R58LS4148102222R55IR2912+5V103333121+5V335.6pNCR6R36R45R35C54C102ANT1IR3102C30C56C245.6pC20C21C5010p104104+5V104C99R40C14161514131211109103104511242Q13outVeevccP0P3P4C29R42C7R37C1012SC4081RFinRFin104104+5V102C398.2k472224pumposcoscsdaSCLP7P6P5R

5、173.3pC58Q12102C93C3712345678+5V104102C590.5pC6331R44BFG425(P5)C80C0.75PCR48R79561Q10124R51Q110BFG540(N43)BFG540(N43)R7103C51U210p101C92C1X1SP5655114BBY53D1R39R38D6NC15p4MHZNC2131043.9R43C23C1001.8KC55R41C22C533125.6p3911042p+5V+5V411R47512510C91R80R81103103C38104690R83R464

6、7278103CH1CH2+5V+5V1041041041U1Q9+5VSW2C17C96C312C28EM78P153ENR823904(P04)+5V41041032035CH3R29R9R25C18C19R33691251104R32R10R26103394CH43949125110p103C52C49R3010PBR2R86833904223683R34B3904C25101RCA1AVR1153C3105R23Q2105R24R1Q4104V-in101205C15C26102C16C2775RR20104R31104C230P82

7、1683R49C40VR3C41R15431390439041050VR2Q1105Q3R11500500R12C45R27C46C47RCA2A203C12R19101911181C35101R28C48L-in(6.5M)C4C10R3105154C34R18911151102561NC101154101R21C42R22C432221052226831051050R16203C13R13R14RCA3AR4R-in(6.0M)C5C11NC102561SW-1P2TU3470uHSW1102103102D5C887805+5VC9C90

8、L4VCC113VinVoutC97A21N4001C33C78C94C79A227/16V47725VGND104C6210447716VDC/JACK22104