DVB-C 机顶盒原理图.pdf
上传人:qw****27 上传时间:2024-09-12 格式:PDF 页数:22 大小:1.1MB 金币:15 举报 版权申诉
预览加载中,请您耐心等待几秒...

DVB-C 机顶盒原理图.pdf

DVB-C机顶盒原理图.pdf

预览

免费试读已结束,剩余 12 页请下载文档后查看

15 金币

下载此文档

如果您无法下载资料,请参考说明:

1、部分资料下载需要金币,请确保您的账户上有足够的金币

2、已购买过的文档,再次下载不重复扣费

3、资料包下载后请先用软件解压,在使用对应软件打开

VCC_SCI3V3_MOSSIMCARD10K10KVCC_SCIJ26R250R250R156R1561K1K560560R209R2097R5333SIM0_CLKSIM0_CLK63SIM0_RST_OUTSIM0_RST_OUT54R323SIM0_DATASIM0_DATA3333SIM0_DETSIM0_DET21100pF/NC100pF/NC100pF100pFCON7,P2.5MM100pF100pF10K/NC10K/NC100nF100nFR2331KC16C16C17C17100pF100pFC18C18C123C123C180C180R210R2105V0_MOS23SIM0_RST_OUTSCICardInterfaceSIM0_RST_OUTECBQ210K10KMM39061R21510K5V0_MOSR214R214VCC_SCILB18FB120R0805DECAL32312R31310R,0805R254R2544.7K4.7K3ECBQ1110K10K11MM3906220uF,10V220uF,10V3SIM0_RSTSIM0_RSTR2534.7KQ16+1MM39042C59C592R21110KC179C179100nF100nFR212R21224.7K4.7KR216R21610K10K3R251R2513SCICardResetControlSIM0_PWRENR2524.7K1Q153SIM0_PWREN1MM390410K10K22R213R213SCICardPowerControlWDG_RSTNWDG_RSTN333333V3_MOS3V3U1R16R16R171K32R18100RESET_SYSVCCRESETRESET_SYS4.7K4.7K4.7K4.7KGNDMAX8091100K100K100nF100nFR247R247R246R2463TDO_ICER245R2454.7K/NC4.7K/NC3TCK_ICEC176C176100nF100nFC175C1753TMS_ICEC373C3731nF1nF3TDI_ICER299R2993TRST_ICETRST_ICE1K1K10K10KR155R155R208R208为了将CA下面的按键和CAconnector移开,特将JTAG删除,将spi移到背面。5V0_MOS4.7K4.7K4.7K4.7KC178C178100nF100nFR249R249R158R1585V0_MOSJ24UART0_TXD312UART0_TXD3UART0_RXDUART0_RXD34CON4,P2.5MM5V0_Ttuner2K2K5V0_TU10R35R352K2KQAM_SCLR34R34QAM_SCLQAM_SDA5V0_MOSQAM_SDAR86L822uH/DIP10K/NC1100pF100pF100pF100pF5V0_TC2610uF,16V2NC3RF_AGCNCC101C101C102C102R83334R845SCL33SDAR85067CAS8VCC12VTSS119131000uF,10V1000uF,10VQAM_VINP10IF_AGCS214+100nF100nF100pF100pFQAM_VINPC171100nFR233QAM_VINNC172100nFR311DIF2S315QAM_VINN33DIF1S42DCT70707C170C170C222C222C330C330IF_AGC4.7KR171330IF_AGCR244100nF100nF100nF100nFC173C173C174C174putthesecircuitnearTunerputthesecircuitnearHI3716MMII&RMIIC158100nFU2RX-_PHY046TX-_PHY03RX-_PHY0TX-_PHY03RX+_PHY05RX-TX-7TX+_PHY03RX+_PHY0RX+TX+TX+_PHY0349.9R,1%49.9R,1%49.9R,1%49.9R,1%3V3_MOS828R2434.7K3V3_MOSCLK_50M_PHY09XOCOL/CONFIG0293CLK_50M_PHY0XI/REFCL