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PAC7301LT 数据表(PDF) 2 Page - Pixart Imaging Inc. |
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PAC7301LT 数据表(HTML) 2 Page - Pixart Imaging Inc. |
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2 / 24 page ![]() PixArt Imaging Inc. PAC7301/PAC7302 All rights strictly reserved any portion in this paper shall not be reproduced, copied or transformed to any other forms without permission . 2 PixArt Imaging Inc. E-mail: fae_service@PixArt.com.tw V1.4 Nov 2007 3. Pin Assignment 3.1PLCC Package(11.43X11.43) Pin# Name Type Description 1 MIC_N IN Microphone negative input 2 VSSA_AUDIO GND Audio analog circuit GND 3 VDDADC33 BYPASS Audio ADC power ,3.3V 4 GPI3 IN General purpose input pin 5 GPO1 OUT General purpose output pin 6 NC - No Connection 7 NC - No Connection 8 TEST2 IN Test pin. Connect to GND in normal operation mode, internal pull-down 100Kohm 9 RESET# IN Chip power up reset 10 GPI1 IN General purpose input pin 11 VSSQ GND Digital Ground for I/O and PHY, digital core. 12 EPR_DO/TR3 IN Data out of EEPROM (IO trap pin for PID3, internal pull-up 100Kohm) 13 EPR_DI/TR0 OUT Data input of EEPROM (IO trap pin for PID0, internal pull-up 100Kohm) 14 EPR_SK/TR2 OUT Serial clock of EEPROM (IO trap pin for PID2, internal pull-up 100Kohm) 15 EPR_CS/TR1 OUT Chip select of EEPROM (IO trap pin for PID1, internal pull-up 100Kohm) 16 LED OUT LED driver 17 GPI2 IN General purpose input pin 18 NC - No Connection 19 NC - No Connection 20 EPR_EN IN EEPROM enable pin active high 21 AUD_EnH IN Audio enable pin, High active, internal pull-up 100Kohm 22 VSSQ GND Digital Ground for I/O and PHY, digital core. 23 VDDD BYPASS Logic power for digital circuit, 1.8V 24 VDDMD5 PWR 5V power for digital circuit 25 VDDQ BYPASS Power for I/O and PHY, 3.3V 26 OSC_OUT OUT Crystal output 27 OSC_IN IN Crystal input 28 DN I/O DN for USB1.1 PHY 29 DP I/O DP for USB1.1 PHY 30 NC - No Connection 31 NC - No Connection 32 GPO2 OUT General purpose output pin, internal pull-up 100Kohm, reserve VID 33 KEY# IN Snapshot control signal (Active Low, internal pull-up 100Kohm) 34 VSSA GND Analog ground 35 VSSAY GND Sensor ground 36 VDDA BYPASS Analog power for Video PGA/ADC 2.5V 37 VDDAYM BYPASS Analog power for sensor CDS 2.5V 38 VDDAY BYPASS Analog power for sensor array 2.5V 39 VDDA33 BYPASS Analog power output 3.3V(for 2.5 regulator use) 40 VDDMA5 PWR 5V power for video analog circuit 41 TEST1 IN Test pin. Connect to GND in normal operation mode, internal pull-down 100Kohm 42 NC - No Connection 43 NC - No Connection 44 VDDMA5_AU D PWR 5V power for analog audio circuit 45 VDDPGA33 BYPASS Analog power output for audio PGA 3.3V 46 VCOM BYPASS Microphone common mode voltage reference(audio power) |
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