# CJO05-080003320B30

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

CJO05-080003320B30 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/Disable | input | Output enable: high (>=0.7VDD) or open gives normal oscillation, low (<=0.3VDD) stops the oscillator and puts output (Pin 3) in high impedance. |
| 2 | GND | power_in | Ground connection. |
| 3 | Output | output | CMOS clock output at 8MHz, 15pF load, goes high impedance when Pin 1 is low. |
| 4 | VDD | power_in | Supply voltage input, +3.3Vdc ±10%. |

## Key specifications

| Parameter | Value |
|---|---|
| Manufacturer | Changjing |
| Package | SMD3225-4P |
| Category | Crystals, Oscillators, Resonators |
| Pins | 4 |

## Electrical characteristics

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

| Parameter | Symbol | Min | Typ | Max | Unit | Conditions | Page |
|---|---|---|---|---|---|---|---|
| Frequency Stability |  | -20 |  | 20 | ppm | incl. 25°C tolerance | 2 |
| Aging |  | -3 |  | 3 | ppm/year |  | 2 |
| Operating Temperature Range |  | -40 |  | 85 | °C |  | 2 |
| Storage Temperature Range |  | -55 |  | 125 | °C |  | 2 |
| Input Voltage (VDD) tolerance | VDD | -10 |  | 10 | % |  | 2 |
| Input Current (IDD) | IDD |  |  | 10 | mA |  | 2 |
| Output Symmetry |  | -10 | 50 | 10 | % |  | 2 |
| Rise/Fall Time |  |  |  | 8 | ns |  | 2 |
| Output Voltage LOW | VOL |  |  | 10 | %VDD |  | 2 |
| Output Voltage HIGH | VOH | 90 |  |  | %VDD |  | 2 |
| Start-up Time |  |  |  | 5 | ms |  | 2 |
| Standby Current |  |  |  | 10 | µA |  | 2 |
| Phase Jitter (rms) |  |  |  | 1 | ps | 12KHz to 20MHz | 2 |
| Input Voltage (VDD) nominal | VDD |  | 3.3 |  | V | nominal, ±10% per tolerance row | 2 |
| Output Load |  |  | 15 |  | pF | CMOS load | 2 |

## CAD (KiCad official)

- Symbol: `CJO05-080003320B30`
- Footprint: `Crystal:Crystal_SMD_3225-4Pin_3.2x2.5mm`
- 3D model: SMD3225-4P (KiCad packages3D, STEP)
- 3D model files: `cjo05-080003320b30-etched.step` / `cjo05-080003320b30-etched.glb` carry the MPN laser-etched on the die in a toggleable `Adom.LaserEtch` group (Fusion-ready); `cjo05-080003320b30.step` / `cjo05-080003320b30.glb` are the bare package body.

## Provenance

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

- **Datasheet:** [Changjing datasheet](https://jlcpcb.com/api/file/downloadByFileSystemAccessId/8589039642523525120) (9 pp, sha256 `5a67f91e3a65fded`, retrieved 2026-10-21, 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](docs/cjo05-080003320b30-datasheet.pdf)