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STA320 Datasheet(PDF) 3 Page - STMicroelectronics |
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STA320 Datasheet(HTML) 3 Page - STMicroelectronics |
3 / 37 page ![]() 3/37 STA320 Table 5. PIN FUNCTION Pin N` Name Type Description Pad Type 1 SA I I²C Address selector CMOS Input Buffer with Pull-Down 2 DDX1A O Channel 1 DDX Output A 3.3V Capable TTL 4mA Output Buffer 3 DDX1B O Channel 1 DDX Output B 3.3V Capable TTL 4mA Output Buffer 4 DDX2A O Channel 2 DDX Output A 3.3V Capable TTL 4mA Output Buffer 5 DDX2B O Channel 2 DDX Output B 3.3V Capable TTL 4mA Output Buffer 6 RESET I Global reset (active low) 5V Tolerant TTL Schmitt Trigger Input Buffer 7 SCL I I²C Serial Clock 5V Tolerant TTL Schmitt Trigger Input Buffer 8 SDA I/O I²C Serial Data Bidirectional Buffer: 5V Tolerant TTL Schmitt Trigger Input; 3.3V Capable 2mA Slew-rate controlled Output. 9 RESERVED -- Test pin to be externally connected to Ground 10 FILTER_PLL I Connection to PLL_filter Analog Pad 11 XTI I PLL Input clock 5V Tolerant TTL Schmitt Trigger Input Buffer 12 GNDA Analog Ground Analog Ground 13 VddA 3.3V Analog Power Supply Voltage 3.3V Analog Power Supply Voltage 14 SDI_12 I I²S Serial Data Channels 1 & 2 5V Tolerant TTL Input Buffer 15 LRCKI I I²S Left/Right Clock 5V Tolerant TTL Input Buffer 16 BICKI I I²S Serial Clock 5V Tolerant TTL Input Buffer 17 GND I/O Digital Ground Digital Ground 18 Vdd I/O 3.3V Digital Power Supply Voltage 3.3V Digital Power Supply Voltage 19 Vdd I/O 3.3V Digital Power Supply Voltage 3.3V Digital Power Supply Voltage 20 PWDN I Device Powerdown 5V Tolerant TTL Schmitt Trigger Input Buffer 21 DDX3A O Channel 3 DDX Output A 3.3V Capable TTL 4mA Output Buffer 22 DDX3B O Channel 3 DDX Output B 3.3V Capable TTL 4mA Output Buffer 23 EAPD O External Amp Power Down 3.3V Capable TTL 4mA Output Buffer 24 TRI-STATE O Tri-state output to Power block 3.3V Capable TTL 4mA Output Buffer 25 OCDETECT I Over-current Indicator 5V Tolerant TTL Input Buffer 26 FAULT I Power Fault Indicator 5V Tolerant TTL Input Buffer 27 TWARN I Thermal Warning Indicator 5V Tolerant TTL Input Buffer 28 GND I/O Digital Ground Digital Ground |
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