component

pt2259-s

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by Ray

PTC Princeton Tech Audio Interface ICs, SOIC-8. Datasheet-verified pinout, KiCad symbol/footprint/3D.

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README

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PT2259-S

PTC Princeton Tech · Audio Interface ICs · SOIC-8

PT2259-S from PTC Princeton Tech, in a SOIC-8. Pinout and pin descriptions extracted from the manufacturer datasheet by ds2sf; symbol, footprint, and 3D from KiCad-official CAD.

Pinout

Pin Name Type Function
1 LIN input Left channel audio input. Capacitor-coupled to the input port; internally biased to VREF (~VDD/2). Typical input coupling capacitor 10 uF.
2 LOUT output Left channel audio output. Capacitor-coupled to the output port (typ. 10 uF). Op-amp output biased around VDD/2.
3 VSS power_in Ground reference (0 V) for the IC.
4 SDA input I2C serial data input. Used with SCL to receive attenuation/volume commands from the host MCU.
5 SCL input I2C serial clock input from the host MCU. Requires an external pull-up resistor per I2C practice.
6 VDD power_in Positive supply voltage input. Operating range 4 V to 10 V. Bypass with 100 uF bulk + 0.1 uF decoupling capacitor to VSS.
7 ROUT output Right channel audio output. Capacitor-coupled to the output port (typ. 10 uF). Op-amp output biased around VDD/2.
8 RIN input Right channel audio input. Capacitor-coupled to the input port (typ. 10 uF); internally biased to VREF (~VDD/2).

Key specifications

Parameter Value
Manufacturer PTC Princeton Tech
Package SOIC-8
Category Interface
Pins 8

Ordering variants

  • PT2259-S

CAD (KiCad official)

  • Symbol: PT2259-S
  • Footprint: Package_SO:SOIC-8_3.9x4.9mm_P1.27mm
  • 3D model: SOIC-8 (KiCad packages3D, STEP)

Provenance

Data extracted from the manufacturer datasheet, not a distributor listing:

  • Datasheet: PTC Princeton Tech datasheet (None pp, sha256 6bc0bc84e618609f, retrieved 2026-08-17, tier: lcsc)
  • Extractor: ds2sf (Claude). Every pin and dimension is cited to a datasheet page; it refuses to fabricate.
  • CAD: KiCad official libraries (CC-BY-SA 4.0).

Datasheet PDF

Symbol & Footprint

Schematic Symbol

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PCB Footprint

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Datasheet

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