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| 05W799A IrDA SIR, FIR Controller IC BU92002GU VBGA063T050 Features 1) Data transfer speed FIR(4Mbps) SIR(2.4 to 115.2kbps) compatible 2) Built-in FIFO buffer 5kbyte 3) Data bus 16bit width Applications Mobile phone, printer, DSC, DVD/HDD recorder, LCD-TV, PDP-TV, projector, portable audio equipments, etc. Absolute Maximum Ratings (Ta=25C) Parameter Power supply voltage Power dissipation Operating temperature range Storage temperature range Symbol VDD Pd Topr Tstg Limits -0.3 ~ +2.5 570 -25 ~ +85 -40 ~ +100 Unit V mW C C 1.2Max. 0.23 Description BU92002GU is FIR(4Mbps) compatible IrDA controller IC. Built-in 5kbyte FIFO enables simple system design in correspondence with interrupt by a frame unit. (DMA is not used.) It is accessible as memory device of bus connection and can acquire a large quantity of data with a 16bit width data bus instantaneously. Dimension (Unit : mm) 5.0 8 7 6 5 4 321 A B C D E F G H 5.0 0.5 0.75 2005 11 Recommended Operating Conditions (Ta=25C) Parameter Power supply voltage Interface power supply voltage Symbol VDD VIO Min. 1.62 1.62 Typ. 1.8 3.0 Max. 1.98 3.6 Unit V V Electrical characteristics (Unless otherwise noted; Ta=25C, VDD=1.8V) Parameter Current consumption 1 Current consumption 2 Digital high level input voltage Digital low level input voltage Digital high level input current Digital low level input current Digital high level output voltage Digital low level output voltage Symbol IDD1 IDD2 VIH VIL IIH IIL VOH VOL - - - VIO-0.6 - Min. - - Typ. 0.1 5.0 - - - - - - 10 10 - 0.6 Max. 3.0 10.0 - Unit mA mA V V mA mA V V Input voltage=VIO Input voltage=GND IOH=-1mA IOL=1mA Conditions No output load, All inputs=0V CLK=48MHz Application Circuit VDD IrDA PWDOWN D0~15 A1~3 CS RD WR INTR RESET PWDN 16 16 Transmitterreceiver FIFO buffer CPU I/F 16 Receiver shift register (S/P) 16 16 SIR(115kbps) Register control /status Asynchronous DEC 3/16 DEM FIR(4Mbps) CRC DEC 4PPM DEC Preamble/ Flag detection RPM971etc. IrRX VCC GND 16 SIR(115kbps) Transmitter shift register (P/S) CRC ENC Asynchronous ENC 3/16 MOD FIR(4Mbps) XIN / CLK48M XOUT Crystal I/F Baud rate generator 4PPM ENC Preamble/ Flag insertion IrTX GND |
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