# LM4808MM

**Texas Instruments** · Audio Amplifiers · VSSOP-8

LM4808MM from Texas Instruments, in a VSSOP-8. 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 | OUT A | output | Channel A amplifier output, typically AC-coupled to the load through output capacitor Co (e.g. 32Ω load). |
| 2 | IN A (-) | input | Channel A inverting input, connected through input resistor Ri and coupling capacitor Ci, with Rf setting closed-loop gain. |
| 3 | IN A (+) | input | Channel A non-inverting input, biased to 1/2 VDD by the RB divider and bypassed with CB (1.0µF recommended). |
| 4 | GND | power_in | Ground connection for the device. |
| 5 | IN B (+) | input | Channel B non-inverting input, biased to 1/2 VDD by the RB divider and bypassed with CB. |
| 6 | IN B (-) | input | Channel B inverting input, connected through input resistor Ri and coupling capacitor Ci, with Rf setting closed-loop gain. |
| 7 | OUT B | output | Channel B amplifier output, typically AC-coupled to the load through output capacitor Co. |
| 8 | VDD | power_in | Positive supply pin, 2.0V to 5.5V operating range (6.0V absolute maximum), bypassed with a 0.1µF capacitor CS to ground. |

## Key specifications

| Parameter | Value |
|---|---|
| Manufacturer | Texas Instruments |
| Package | VSSOP-8 |
| Category | Amplifiers/Comparators |
| Pins | 8 |

## CAD (KiCad official)

- Symbol: `LM4808MM`
- Footprint: `Package_SO:VSSOP-8_2.3x2mm_P0.5mm`
- 3D model: VSSOP-8 (KiCad packages3D, STEP)
- 3D model files: `lm4808mm-etched.step` / `lm4808mm-etched.glb` carry the MPN laser-etched on the die in a toggleable `Adom.LaserEtch` group (Fusion-ready); `lm4808mm.step` / `lm4808mm.glb` are the bare package body.

## Provenance

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

- **Datasheet:** [Texas Instruments datasheet](https://www.ti.com/cn/lit/gpn/lm4808) (29 pp, sha256 `e622bbed694002d4`, retrieved 2026-10-07, tier: lcsc)
- **Extractor:** parts-factory `2.0.0` / `extract_pins 0.3`, primary `claude-sonnet-5-5` (text+vision), consensus `claude-opus-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/lm4808mm-datasheet.pdf)