# CJO05-200001820B30

**Changjing** · Oscillators · SMD3225-4P

CJO05-200001820B30 from Changjing, in a SMD3225-4P. 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 | ENABLE CONTROL | input | Enable control pin that enables or disables the oscillator output; the datasheet gives no logic levels for it. |
| 2 | GND | power_in | Ground connection for the oscillator. |
| 3 | OUT | output | CMOS clock output, rated for a 15 pF load, with Vol max 0.1 VDD and Voh min 0.9 VDD. |
| 4 | VDD | power_in | Positive supply, available as 1.8 V, 2.5 V, 2.8 V or 3.3 V depending on the version. |

## Key specifications

| Parameter | Value |
|---|---|
| Manufacturer | Changjing |
| Package | SMD3225-4P |
| Category | Crystal Oscillator/Oscillator/Resonator |
| Pins | 4 |

## CAD (KiCad official)

- Symbol: `CJO05-200001820B30`
- Footprint: `Crystal:Crystal_SMD_3225-4Pin_3.2x2.5mm`
- 3D model: SMD3225-4P (KiCad packages3D, STEP)
- 3D model files: `cjo05-200001820b30-etched.step` / `cjo05-200001820b30-etched.glb` carry the MPN laser-etched on the die in a toggleable `Adom.LaserEtch` group (Fusion-ready); `cjo05-200001820b30.step` / `cjo05-200001820b30.glb` are the bare package body.

## Provenance

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

- **Datasheet:** [Changjing datasheet](docs/cjo05-200001820b30-datasheet.pdf) (1 pp, sha256 `a5f45d0d2d258cf8`, retrieved 2026-10-22, tier: lcsc)
- **Extractor:** parts-factory `2.0.0` / `extract_pins 0.3`, primary `claude-sonnet-5-5` (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/cjo05-200001820b30-datasheet.pdf)