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AK7734XQ Datasheet(PDF) 7 Page - Asahi Kasei Microsystems |
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AK7734XQ Datasheet(HTML) 7 Page - Asahi Kasei Microsystems |
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7 / 24 page  [AK7734] MS1033-E-02-PB 7 2010/01 No. Name I/O Function Classification 23 BITCLKO O Serial Bit Clock Output Pin Outputs “L” during initial reset in master mode. System Clock Output 24 CLKO O Clock Output Pin Outputs “L” during initial reset. Clock Output 25 STO O Status Output Pin Outputs “H” during initial reset. Status SO O Serial Data Output Pin for Microprocessor Interface Outputs “L” during initial reset. Microprocessor Interface 26 RDY O Data Write Ready Output Pin for Microprocessor Interface Outputs RDY when SELRDY bit = “1” Microprocessor Interface 27 LRCLKI2 I LR Channel Select Clock Pin2 (for SRC) System Clock Input 28 BITCLKI2 I Serial Bit Clock Input Pin2 (for SRC) System Clock Input JX2 I Conditional Jump Pin2 A conditional jump pin (JX2) is available by setting control register (JX2E) to “1”. Conditional Input 29 SDIN4 I Serial Data Input Pin4 Normally used for SRC serial data input pin. Digital Input RQN I Microprocessor Interface Write Request Pin (I2CSEL pin = “L”) When initial reset state and Microcomputer interface are not in use, leave RQN pin= “H”. Microprocessor Interface 30 CAD1 I I2C Bus Address Setting Pin 1 (I2CSEL pin = “H”) I2C SI I Serial Data Input Pin for Microprocessor Interface (I2CSEL pin = “L”) When SI is not used, tie the SI pin = “L”. Microprocessor Interface 31 CAD0 I I2C Bus Address Setting Pin 0 (I2CSEL pin = “H”) I2C O I2CSEL pin = “L” Leave this pin Open. SDA outputs “L”. Open 32 SDA I/O I2C Bus Data Clock Pin (I2CSEL pin = “H”) Outputs “Hi-z” during initial reset. I2C SCLK I Serial Data Clock Pin for Microprocessor Interface (I2CSEL pin = “L”) When SCLK is not used, tie the SCLK pin = “H”. Microprocessor Interface 33 SCL I I2C Bus Data Clock Pin (I2CSEL pin = “H”) I2C 34 DVDD - Power Supply for Digital Section 3.0V ~ 3.6V Digital Power Supply 35 VSS3 - Ground Pin 0V Power Supply 36 AVDRV O AVDRV Pin Connect a 1 μF capacitor between this pin and No.35 pin (VSS3). No external circuits should be connected to this pin. This pin outputs “L” during initial reset. Analog Output 37 SRCLFLT O SRC, PLL RC component connect pin Connect a 1 μF capacitor between this pin and VSS4. This pin outputs “L” during initial reset. Analog Output 38 VSS4 - Ground Pin 0V Power Supply 39 DVDD - Power Supply for Digital Section 3.0V ~ 3.6V Digital Power Supply 40 CKM[3] I Clock Mode Select Pin3 Mode Select 41 SETSRC I PLL Reference Clock Select Pin for SRC Mode Select 42 TESTI2 I Test2 Pin (Internal pull-down) This pin must be connected to VSS. Test 43 AINR I ADC Single-ended Input Pin for Rch Analog Input |
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