# RO03579043

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

RO03579043 from TROQ, 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 | input | Enable control: high level (≥VDD×0.7) or open gives normal operation on pad 3, low level (≤VDD×0.3) stops the output. |
| 2 | GND | power_in | Ground connection. |
| 3 | OUT | output | CMOS oscillator output at 3.579545 MHz, VOH min VDD×0.9 and VOL max VDD×0.1. |
| 4 | VDD | power_in | Supply voltage pin, 1.8 to 3.3 V, with a maximum current consumption of 10.0 mA. |

## Key specifications

| Parameter | Value |
|---|---|
| Manufacturer | TROQ |
| 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 Tolerance |  | -20 |  | 20 | ppm |  | 2 |
| Operating Temperature Range |  | -40 |  | 85 | ℃ |  | 2 |
| Storage Temperature Range |  | -40 |  | 85 | ℃ |  | 2 |
| Supply Voltage | VDD | 1.8 |  | 3.3 | V |  | 2 |
| Symmetry of Wave Form | Symmetry | 45 |  | 55 | % |  | 2 |
| Current Consumption | IDD |  |  | 10 | mA |  | 2 |
| Rise and Fall Time | Tr,Tf |  |  | 5 | nSec |  | 2 |
| Start time | tosc |  |  | 10 | mSec |  | 2 |
| Aging |  | -3 |  | 3 | ppm/year |  | 2 |
| Nominal Frequency |  |  | 3.57954 |  | MHz | Fundamental | 2 |
| Load Capacitance | CL |  | 15 |  | pF |  | 2 |

## CAD (KiCad official)

- Symbol: `RO03579043`
- Footprint: `Crystal:Crystal_SMD_3225-4Pin_3.2x2.5mm`
- 3D model: SMD3225-4P (KiCad packages3D, STEP)
- 3D model files: `ro03579043-etched.step` / `ro03579043-etched.glb` carry the MPN laser-etched on the die in a toggleable `Adom.LaserEtch` group (Fusion-ready); `ro03579043.step` / `ro03579043.glb` are the bare package body.

## Provenance

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

- **Datasheet:** [TROQ datasheet](docs/ro03579043-datasheet.pdf) (6 pp, sha256 `7c28d382e8058d28`, retrieved 2026-10-22, 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/ro03579043-datasheet.pdf)