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AK4641 Datasheet(PDF) 4 Page - Asahi Kasei Microsystems |
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AK4641 Datasheet(HTML) 4 Page - Asahi Kasei Microsystems |
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4 / 51 page  ASAHI KASEI [AK4641] MS0301-E-00 2004/05 - 4 - PIN/FUNCTION No. Pin Name I/O Function 1 MPE O MIC Power Supply Pin for External Microphone 2 MPI O MIC Power Supply Pin for Internal Microphone 3 INT I Internal Microphone Input Pin (Mono Input) 4 VCOM O Common Voltage Output Pin, 0.45*AVDD Bias voltage of ADC inputs and DAC outputs. 5 AVSS - Analog Ground Pin 6 AVDD - Analog Power Supply Pin 7 BVDD - Power Supply Pin for 16bit Mono CODEC of Bluetooth I/F 8 BVSS - Ground Pin for 16bit Mono CODEC of Bluetooth I/F 9 VCOC O PLL Loop Filter Pin for 16bit Mono CODEC of Bluetooth I/F 10 PDN I Power-Down Mode Pin “H”: Power up, “L”: Power down reset and initializes the control register. 11 TST1 I Test Pin. Connect to DVSS. 12 SCL I Control Data Clock Pin 13 SDA I/O Control Data Input Pin 14 SDTI I Audio Serial Data Input Pin 15 SDTO O Audio Serial Data Output Pin 16 LRCK I Input/Output Channel Clock Pin 17 BICK I Audio Serial Data Clock Pin 18 MCLK I External Master Clock Input Pin 19 DVDD - Digital Power Supply Pin 20 DVSS - Digital Ground Pin 21 BSDTI I Serial Data Input Pin for 16bit Mono CODEC of Bluetooth I/F 22 BSDTO O Serial Data Output Pin for 16bit Mono CODEC of Bluetooth I/F 23 BSYNC I Sync Signal Pin for 16bit Mono CODEC of Bluetooth I/F 24 BBICK I Serial Data Clock Pin for 16bit Mono CODEC of Bluetooth I/F 25 TST2 I Test Pin. Connect to AVSS. 26 MOUT2 O Mono Line Output 2 Pin 27 ROUT O Rch Stereo Line Output Pin 28 LOUT O Lch Stereo Line Output Pin 29 MOUT − O Mono Line Negative Output Pin 30 MOUT+ O Mono Line Positive Output Pin 31 AUX IN − I Mono AUX Negative Input Pin 32 AUX IN+ I Mono AUX Positive Input Pin 33 AIN I Analog Input Pin 34 MICOUT O Microphone Analog Output Pin 35 MDT I Microphone Detect Pin (Internal pull down by 500k Ω) 36 EXT I External Microphone Input Pin (Mono Input) Note: All input pins except analog input pins (INT, EXT, AIN, AUXIN+, AUXIN −, MDT) should not be left floating. Handling of Unused Pin The unused I/O pins should be processed appropriately as below. Classification Pin Name Setting Analog Input INT, AUXIN+, AUXIN −, AIN, MDT, EXT These pins should be open. Analog Output MPE, MPI, MOUT2, ROUT, LOUT, MOUT −, MOUT+, MICOUT These pins should be open. Digital Input BSDTI, BSYNC, BBICK These pins should be connected to DVSS. Digital Output BSDTO These pins should be open. |
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