# LM4863S

**lingxingic** · Audio Amplifiers · SOP-16

LM4863S from lingxingic, in a SOP-16. Pinout and pin descriptions extracted from the manufacturer datasheet (extract_pins, cross-checked by a second model); symbol, footprint, and 3D from KiCad-official CAD.

## Pinout

| Pin | Name | Type | Function |
|---|---|---|---|
| 1 | SHUTDOWN | input | Logic-high control (at least VDD/2, and VDD for full shutdown) activates the low-power shutdown mode, while grounding the pin gives normal operation; a switch with a 10 kΩ pull-up to VDD is recommended so the pin never floats. |
| 2 | GND | power_in | Ground return for the amplifier and bias circuits. |
| 3 | +OUTA | output | Non-inverting output of the channel A bridge amplifier; the load connects between +OUTA and -OUTA. |
| 4 | VDD | power_in | Supply pin; the datasheet specifies an operating supply range of 2 V to 5.5 V (absolute maximum 5.5 V). |
| 5 | -OUTA | output | Inverting output of the channel A bridge amplifier, driven 180° out of phase with +OUTA. |
| 6 | -INA | input | Inverting input of the channel A preamplifier (Amp1A), whose Ri/Rf network sets the closed-loop gain. |
| 7 | GND | power_in | Ground return for the amplifier and bias circuits. |
| 8 | +INA | input | Non-inverting audio input of channel A, normally AC-coupled through the input capacitor Ci. |
| 9 | +INB | input | Non-inverting audio input of channel B, normally AC-coupled through its input capacitor. |
| 10 | BYPASS | passive | Half-supply bias node decoupled to GND by CB (1 µF recommended); the datasheet states a tantalum capacitor is required and ceramic substitution is not acceptable. |
| 11 | -INB | input | Inverting input of the channel B preamplifier (Amp1B), whose Ri/Rf network sets the closed-loop gain. |
| 12 | -OUTB | output | Inverting output of the channel B bridge amplifier, driven 180° out of phase with +OUTB. |
| 13 | VDD | power_in | Supply pin; the datasheet specifies an operating supply range of 2 V to 5.5 V (absolute maximum 5.5 V). |
| 14 | +OUTB | output | Non-inverting output of the channel B bridge amplifier; the load connects between +OUTB and -OUTB. |
| 15 | GND | power_in | Ground return for the amplifier and bias circuits. |
| 16 | HP-IN | input | Headphone-detect input: a voltage of 4 V up to VDD disables the bridge amplifiers Amp2A/Amp2B and selects single-ended operation, while logic low (VIL max 0.8 V) keeps bridge mode. |

## Key specifications

| Parameter | Value |
|---|---|
| Manufacturer | lingxingic |
| Package | SOP-16 |
| Category | Amplifiers/Comparators |
| Pins | 16 |

## Electrical characteristics

Limits as printed in the datasheet (page.json `metadata.characteristics` carries them as data).

| Parameter | Symbol | Min | Typ | Max | Unit | Conditions | Page |
|---|---|---|---|---|---|---|---|
| 电源电压 (Supply voltage, absolute maximum rating) |  |  |  | 5.5 | V |  | 4 |
| 存储温度 (Storage temperature) |  | -65 |  | 150 | ℃ |  | 4 |
| 结温 (Junction temperature) |  |  |  | 150 | ℃ |  | 4 |
| 工作温度 (Operating temperature) |  | -40 |  | 85 | ℃ |  | 4 |
| 输入电压 (Input voltage) |  | -0.3 |  |  | V | upper limit printed as VDD+0.3 V | 4 |
| ESD 电压（人体模式）(ESD human body model) |  |  |  | 2000 | V | human body model | 4 |
| ESD 电压（机器模式）(ESD machine model) |  |  |  | 200 | V | machine model | 4 |
| 焊接温度 SOP 封装 (Soldering temperature, SOP package) |  |  |  | 250 | ℃ | 10 s, SOP package | 4 |
| 电源电压 (Supply voltage VDD) | VDD | 2 |  | 5.5 | V |  | 5 |
| 静态功率电源电流 (Quiescent power supply current) | IDD | 6 | 11.5 | 20 | mA | VIN=0V, IO=0A, HP-IN=0V; table VDD=5V, TA=25℃ | 5 |
| 关断电流 (Shutdown current) | ISD |  | 0.7 | 2 | µA | VDD connected to SHUTDOWN pin; table VDD=5V, TA=25℃ | 5 |
| 耳机高电平输入电压 (Headphone high-level input voltage) | VIH | 4 |  |  | V |  | 5 |
| 耳机低电平输入电压 (Headphone low-level input voltage) | VIL |  |  | 0.8 | V |  | 5 |
| 输出偏移电压, 桥接模式 (Output offset voltage, bridge mode) | VOS |  | 5 | 50 | mV | VIN=0V; bridge mode table VDD=5V, TA=25℃ | 5 |
| 输出偏移电压, 单端模式 (Output offset voltage, single-ended mode) | VOS |  | 5 | 50 | mV | VIN=0V; single-ended table VDD=5V, TA=25℃ | 5 |
| 输出功率, 单端模式 (Output power, single-ended mode) | PO | 75 | 85 |  | mW | THD+N=0.5%, f=1KHz, RL=32Ω | 5 |
| 热阻 结到外壳 M16B (Thermal resistance junction-to-case) | θJC-M16B |  |  | 20 | ℃/W |  | 4 |
| 热阻 结到环境 M16B (Thermal resistance junction-to-ambient) | θJA-M16B |  |  | 80 | ℃/W |  | 4 |
| 热阻 结到外壳 M16A (Thermal resistance junction-to-case) | θJC-M16A |  |  | 20 | ℃/W |  | 4 |
| 热阻 结到环境 M16A (Thermal resistance junction-to-ambient) | θJA-M16A |  |  | 63 | ℃/W |  | 4 |

## CAD (KiCad official)

- Symbol: `LM4863S`
- Footprint: `Package_SO:SOIC-16_3.9x9.9mm_P1.27mm`
- 3D model: SOP-16 (KiCad packages3D, STEP)
- 3D model files: `lm4863s-etched.step` / `lm4863s-etched.glb` carry the MPN laser-etched on the die in a toggleable `Adom.LaserEtch` group (Fusion-ready); `lm4863s.step` / `lm4863s.glb` are the bare package body.

## Provenance

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

- **Datasheet:** [lingxingic datasheet](https://jlcpcb.com/api/file/downloadByFileSystemAccessId/8603380562816491520) (21 pp, sha256 `e6e2797cd99079e2`, retrieved 2026-10-17, tier: lcsc)
- **Datasheet language:** Chinese. Pin names, descriptions, and specs on this page were extracted and translated to English by ds2sf; the linked PDF is the manufacturer original.
- **Extractor:** parts-factory `2.0.0` / `extract_pins 0.3`, primary `claude-haiku-5-5` (text), consensus `claude-sonnet-5-5` (agreed), guards: pin_guards 0.1: passed. Pins are checked against the footprint pad set and their cited datasheet pages before publish.
- **CAD:** KiCad official libraries (CC-BY-SA 4.0).

[Datasheet PDF](docs/lm4863s-datasheet.pdf)