component
8002A
Public Made by Adomby adom
IDCHIP Audio Power OpAmps, SOP-8. Pinout extracted from the datasheet, KiCad symbol/footprint/3D.
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page.json+11−8@@ -32,37 +32,37 @@ "number": "1", "name": "SD", "type": "input",- "description": "Shutdown control input. Logic HIGH (VIH = 1.5V to VDD) disables the amplifier and puts the chip into low-power mode (~10\u03bcA typical, 16\u03bcA max); logic LOW (VIL = 0 to 1V) enables normal operation. Pin is high-impedance internally with no pull-up/pull-down - must not be left floating (tie to GND if unused)."+ "description": "Shutdown control input. Logic HIGH (VIH = 1.5V to VDD) disables the amplifier and puts the chip into low-power mode (~10μA typical, 16μA max); logic LOW (VIL = 0 to 1V) enables normal operation. Pin is high-impedance internally with no pull-up/pull-down - must not be left floating (tie to GND if unused)." }, { "number": "2", "name": "BYP", "type": "passive",- "description": "Bypass pin - internal VDD/2 mid-supply reference output. Connect a bypass capacitor (typ. 1\u03bcF) from this pin to GND to filter the mid-rail reference and improve PSRR and low-frequency THD+N."+ "description": "Bypass pin - internal VDD/2 mid-supply reference output. Connect a bypass capacitor (typ. 1μF) from this pin to GND to filter the mid-rail reference and improve PSRR and low-frequency THD+N." }, { "number": "3", "name": "NC", "type": "unconnected",- "description": "No connection. Datasheet features list explicitly states '\u82af\u7247\u7b2c3\u811a\u65e0\u529f\u80fd' (Pin 3 has no function). Leave unconnected on the PCB."+ "description": "No connection. Datasheet features list explicitly states '芯片第3脚无功能' (Pin 3 has no function). Leave unconnected on the PCB." }, { "number": "4", "name": "INN", "type": "input",- "description": "Inverting analog audio input to the input op-amp stage. Closed-loop gain of the first stage is set by external Rf (feedback) and Ri (input) resistors; overall differential BTL gain AVD = 2*(Rf/Ri). AC-couple the source through Ci (typ. 0.39\u03bcF) which forms a high-pass filter with Ri (fC = 1/(2\u03c0RiCi))."+ "description": "Inverting analog audio input to the input op-amp stage. Closed-loop gain of the first stage is set by external Rf (feedback) and Ri (input) resistors; overall differential BTL gain AVD = 2*(Rf/Ri). AC-couple the source through Ci (typ. 0.39μF) which forms a high-pass filter with Ri (fC = 1/(2πRiCi))." }, { "number": "5", "name": "VO1", "type": "output",- "description": "Analog audio output 1 (one side of the bridge-tied-load speaker output). Biased at VDD/2 mid-rail; drives one terminal of the 4\u03a9 or 8\u03a9 speaker directly with no output coupling capacitor required. Signal is 180\u00b0 out of phase with VO2."+ "description": "Analog audio output 1 (one side of the bridge-tied-load speaker output). Biased at VDD/2 mid-rail; drives one terminal of the 4Ω or 8Ω speaker directly with no output coupling capacitor required. Signal is 180° out of phase with VO2." }, { "number": "6", "name": "VDD", "type": "power_in",- "description": "Positive supply input. Recommended operating range 2.0V to 5.5V (absolute max 6V). Quiescent supply current IDD \u2248 15mA (no load, VDD=5V). Decouple with 10\u03bcF and 0.1\u03bcF capacitors placed close to the pin."+ "description": "Positive supply input. Recommended operating range 2.0V to 5.5V (absolute max 6V). Quiescent supply current IDD ≈ 15mA (no load, VDD=5V). Decouple with 10μF and 0.1μF capacitors placed close to the pin." }, { "number": "7",@@ -74,7 +74,7 @@ "number": "8", "name": "VO2", "type": "output",- "description": "Analog audio output 2 (other side of the bridge-tied-load speaker output). Biased at VDD/2 mid-rail; the internal second-stage op-amp is fixed at unity inverting gain via two internal 20k\u03a9 resistors, so VO2 is 180\u00b0 out of phase with VO1. Connect the speaker directly between VO1 and VO2."+ "description": "Analog audio output 2 (other side of the bridge-tied-load speaker output). Biased at VDD/2 mid-rail; the internal second-stage op-amp is fixed at unity inverting gain via two internal 20kΩ resistors, so VO2 is 180° out of phase with VO1. Connect the speaker directly between VO1 and VO2." } ], "provenance": {@@ -138,5 +138,8 @@ "docs/8002a-datasheet.pdf", "viewers/symbol.html", "viewers/footprint.html"- ]+ ],+ "visibility": {+ "public": true+ } }