전자부품 데이터시트 검색엔진 |
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STA321 데이터시트(PDF) 11 Page - STMicroelectronics |
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STA321 데이터시트(HTML) 11 Page - STMicroelectronics |
11 / 157 page STA321 Pin description Doc ID 15351 Rev 3 11/157 17 - CLKOUT Out (digital) Buffered clock output 18 - SDA In/Out (digital) I2C serial data 19 H MUTE In (digital) Mute (active high) 21 - REG_BYPASS In (analog) DC regulator bypass: 0: normal operation, regulator enabled 1: regulator bypassed 24 - BIAS In/Out (analog) ADC microphone bias voltage 26 - VLO In (analog) ADC low reference voltage 27 - VHI In (analog) ADC high reference voltage 29 - INR1 In/Out (analog) ADC right channel line input1 30 - INR2 In/Out (analog) ADC right channel line input2 31 - VCM In/Out (analog) ADC common mode voltage 32 - INL2 In (analog) ADC left channel line input2 or microphone input2 33 - INL1 In (analog) ADC left channel line input1 or microphone input1 34 H RSTN In (digital) Reset: 0: reset state 1: normal operation 35 - STBY In (digital) Standby mode: 0: normal operation 1: power-down 36 - EAPWM4 Out (digital) External amplifier PWM 4B 37 - EAPWM3 Out (digital) External amplifier PWM 4A 38 - EAPWM2 Out (digital) External amplifier PWM 3B 39 - EAPWM1 Out (digital) External amplifier PWM 3A 40 H EAFTN Out (digital) External power fault signal: 0: fault 1: normal operational mode 41 - EATSN Out (digital) External amplifier control: 0: active 1: 3-state 42 - EAPDN Out (digital) External amplifier powerdown (active low) 43 - ACLK In (digital), schmitt tr Reserved pin, connect to ground 44 L I2CDIS In (digital) I2C disable: 0: I2C enabled 1: I2C disabled 48 L TM In (digital) Test mode: 0: normal operation 51 - NC - Not connected Table 2. Pin list (continued) Pin Pull Name Type Description |
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