add max98357 audio DAC
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name: MAX98357
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alias: MAX98357A, MAX98357B
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variations: TQFN, WLP
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description: amplifier, audio, class D, mono, 3W, PCM input
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datasheet: https://datasheets.maximintegrated.com/en/ds/MAX98357A-MAX98357B.pdf
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pinout@TQFN:
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SD_MODE: 4
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OUT:
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OUTP: 9
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OUTN: 10
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IN:
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DIN: 1
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BCLK: 16
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LRCLK: 14
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GAIN_SLOT: 2
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VDD: 7,8
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GND: 3,11,15
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NC: 5,6,12,13
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pinout@WLP:
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SD_MODE: A1
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OUT:
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OUTP: A3
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OUTN: B3
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IN:
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DIN: B1
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BCLK: C1
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LRCLK: C3
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GAIN_SLOT: B2
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VDD: A2
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GND: C2
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properties:
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in: IN, SD_MODE, GAIN_SLOT
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power: VDD
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ground: GND
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inverted: SD_MODE
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nc: NC
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schematic:
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symbol: IC
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left: IN, SD_MODE, GAIN_SLOT
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right: OUT
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top: VDD
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bottom: GND
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housing@TQFN:
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pattern: QFN
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bodyWidth: 2.9-3.1 # E
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bodyLength: 2.9-3.1 # D
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height: 0.7-0.8 # A
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leadWidth: 0.2-0.3 # b
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leadLength: 0.3-0.4 # L should be 0.5 but the generated pad is too long
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pitch: 0.5 # e
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pullback: 0
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leadCount: 16
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rowCount: 4
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columnCount: 4
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tabWidth: 0.95-1.25 # E2 T1633+4
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tabLength: 0.96-1.25 # D2 T1633+4
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tabPosition: 0.0, 0.0
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housing@WLP:
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pattern: BGA
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bodyWidth: 1.437 # E
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bodyLength: 1.347 # D
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height: 0.64 # A
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pitch: 0.4 # e
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rowCount: 3
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columnCount: 3
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leadDiameter: 0.27 # b
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leadCount: 9
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