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Contents

README

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LY8212SLT

Lyontek Inc · Audio Power OpAmps · SOP-16

LY8212SLT from Lyontek Inc, in a SOP-16. 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 Vo-(L) output Negative BTL output of the left channel. Class-D PWM output; connects directly to one terminal of the left speaker (no output filter required for inductive loads).
2 GND power_in Power ground. One of three ground pins (2, 9, 15) that carry the Class-D output-stage return current; keep the ground trace wide and short to the decoupling capacitors.
3 Vo+(L) output Positive BTL output of the left channel. Class-D PWM output; connects to the other terminal of the left speaker.
4 VDD power_in Power supply for the left and right output stages. Operating range 2.2V-5.5V (6.0V absolute max). Decouple with a 10µF bulk capacitor and a 0.1µF ceramic close to the pin; shared with pin 13.
5 SDB input Shutdown control (active-low). Drive low (≤0.4V) to place the device in shutdown (ISD ≈ 0.1µA); drive high (≥1.2V) for normal operation. Datasheet also labels this pin 'SHUTDOWN' in the pin-configuration drawing.
6 AGND power_in Analog ground for both left and right input/preamp stages. Must be tied to the main ground plane.
7 INL input Left-channel single-ended audio input. AC-couple through a series input capacitor and input resistor Ri (typ. 150kΩ, 0.22µF for fc ≈ 4.8Hz). Ri sets the pre-amplifier gain per Rf/Ri.
8 BYPASS passive Internal mid-supply reference bypass. Connect a ceramic bypass capacitor (typ. 2.2µF) to ground; this capacitor sets the start-up ramp time (≈215-265ms with 2.2µF).
9 GND power_in Power ground. One of three ground pins (2, 9, 15) that carry the Class-D output-stage return current.
10 INR input Right-channel single-ended audio input. AC-couple through a series input capacitor and input resistor Ri (typ. 150kΩ, 0.22µF).
11 AVDD power_in Analog power supply for the left and right pre-amp/analog sections. Typically tied to the same rail as VDD (2.2V-5.5V) with local 0.1µF decoupling to AGND.
12 Radio Enhance input Radio-enhance mode control (active-high). Drive high to enable the radio-enhance function for improved performance with weak radio signals; drive low for normal (higher-efficiency) mode. Recommended to keep low when the radio function is not needed.
13 VDD power_in Power supply for the left and right output stages (shared with pin 4). Operating range 2.2V-5.5V. Decouple locally with 0.1µF ceramic.
14 Vo+(R) output Positive BTL output of the right channel. Class-D PWM output; connects directly to one terminal of the right speaker.
15 GND power_in Power ground. One of three ground pins (2, 9, 15) that carry the Class-D output-stage return current.
16 Vo-(R) output Negative BTL output of the right channel. Class-D PWM output; connects to the other terminal of the right speaker.

Key specifications

Parameter Value
Manufacturer Lyontek Inc
Package SOP-16
Category Op-amp/Cmp
Pins 16

Ordering variants

Same part, different packaging or reel option.

  • LY8212SLT

CAD (KiCad official)

  • Symbol: LY8212SLT
  • Footprint: Package_SO:SOIC-16_3.9x9.9mm_P1.27mm
  • 3D model: SOP-16 (KiCad packages3D, STEP)
  • 3D model files: ly8212slt-etched.step / ly8212slt-etched.glb carry the MPN laser-etched on the die in a toggleable Adom.LaserEtch group (Fusion-ready); ly8212slt.step / ly8212slt.glb are the bare package body.

Provenance

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

  • Datasheet: Lyontek Inc datasheet (9 pp, sha256 b1be743829a791e2, 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