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SLAS366 데이터시트(PDF) 11 Page - Texas Instruments |
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SLAS366 데이터시트(HTML) 11 Page - Texas Instruments |
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11 / 56 page ![]() 2–1 2 Terminal Descriptions 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 30 29 28 27 26 25 24 23 22 21 20 19 18 17 16 IOVSS IOVDD FSD FS DOUT DIN M/S PWRDN OUTM1 OUTP1 DRVDD DRVSS NC NC NC DVSS DVDD SCLK SDA SCL MCLK RESET INP1 INM1 BIAS INM2 INP2 MICIN AVDD AVSS DBT PACKAGE (TOP VIEW) 2.1 Ordering Information TA 30-TSSOP DBT PACKAGE 0 °C to 70°C TLV320AIC15C –40 °C to 85°C TLV320AIC15I 2.2 Terminal Functions TERMINAL I/O DESCRIPTION NAME NO. I/O DESCRIPTION AVDD 17 I Analog power supply AVSS 16 I Analog ground BIAS 21 O Bias output voltage is software selectable between 1.35 V and 2.35 V. Its output current is 5 mA. DIN 6 I Data input. DIN receives the DAC input data and register data from the external DSP (digital signal processor) and is synchronized to SCLK and FS. Data is latched at the falling edge of SCLK when FS is low. DOUT 5 O Data output. DOUT transmits the ADC output bits and registers data, and is synchronized to SCLK and FS. Data is sent out at the rising edge of SCLK when FS is low. Outside data/control frame, DOUT is put in 3-state. DRVDD 11 I Analog power supply for the 600- Ω driver DRVSS 12 I Analog ground for the 600- Ω driver DVDD 29 I Digital power supply DVSS 30 I Digital ground FS 4 I/O Frame sync. When FS goes low, DIN begins receiving data bits and DOUT begins transmitting data bits. In master mode, FS is internally generated and is low during the data transmission to DIN and from DOUT. In slave mode, FS is externally generated. FSD 3 O Frame sync delayed output. The FSD output synchronizes a slave device to the frame sync of the master device. FSD is applied to the slave FS input and is the same duration as the master FS signal. This pin must be pulled low if AIC15 is a stand-alone slave. It may be pulled high if the AIC15 is a stand-alone master or the last slave in the cascade. INM1 22 I Inverting analog input 1. It must be connected to AVSS if not used. INM2 20 I Inverting analog input 2. It must be connected to AVSS if not used. INP1 23 I Noninverting analog input 1. It must be connected to AVSS if not used. INP2 19 I Noninverting analog input 2. It must be connected to AVSS if not used. |
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