# PT4306-S

**PTC Princeton Tech** · RF Transceiver ICs · SOP-8

PT4306-S from PTC Princeton Tech, in a SOP-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 | VSS | power_in | Ground connection for the device. |
| 2 | ANT | input | RF input connected to the antenna via a matching network. |
| 3 | VREG | power_out | Regulated core voltage output from the on-chip regulator. |
| 4 | VDD5 | power_in | 5 V regulator input supply pin; the device supply voltage range is stated as 2.4 to 5.5 V. |
| 5 | EN | input | Chip enable input; tie HIGH to enable the chip. |
| 6 | DO | output | Data output of the receiver. |
| 7 | CTH | bidirectional | Connection for the data slicing threshold capacitor, which affects coding type and start-up time (470 nF in the application example). |
| 8 | XIN | input | Reference oscillator input, used with a 13.598 MHz crystal in the application example. |

## Key specifications

| Parameter | Value |
|---|---|
| Manufacturer | PTC Princeton Tech |
| Package | SOP-8 |
| Category | RF And Wireless |
| Pins | 8 |

## Electrical characteristics

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

| Parameter | Symbol | Min | Typ | Max | Unit | Conditions | Page |
|---|---|---|---|---|---|---|---|
| Supply voltage range |  | 2.4 |  | 5.5 | V |  | 1 |
| Operating temperature range |  | -40 |  | 85 | °C |  | 1 |

## CAD (KiCad official)

- Symbol: `PT4306-S`
- Footprint: `Package_SO:SOIC-8_3.9x4.9mm_P1.27mm`
- 3D model: SOP-8 (KiCad packages3D, STEP)
- 3D model files: `pt4306-s-etched.step` / `pt4306-s-etched.glb` carry the MPN laser-etched on the die in a toggleable `Adom.LaserEtch` group (Fusion-ready); `pt4306-s.step` / `pt4306-s.glb` are the bare package body.

## Provenance

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

- **Datasheet:** [PTC Princeton Tech datasheet](https://jlcpcb.com/api/file/downloadByFileSystemAccessId/8588917412700311552) (5 pp, sha256 `1e824cc9804c4fde`, retrieved 2026-10-18, tier: lcsc)
- **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/pt4306-s-datasheet.pdf)