component
ECS-TXO-3225-147.4-TR
Public Made by Adomby adom
ECS Pre-ordered Products, SMD3225-4P. Pinout cross-checked by two models against the datasheet, KiCad symbol/footprint/3D.
3D Model
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Symbol & Footprint
Schematic Symbol
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PCB Footprint
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Datasheet
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Contents
README
markdownECS-TXO-3225-147.4-TR
ECS · Pre-ordered Products · SMD3225-4P
ECS-TXO-3225-147.4-TR from ECS, 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 | N/C or VCONT | input | No connect on the ECS-TXO-3225 TCXO, or control voltage input on the ECS-VTXO-3225 VC-TCXO option (+0.15 V min, +1.65 V typ, +3.15 V max). |
| 2 | GND | power_in | Ground connection. |
| 3 | OUTPUT | output | HCMOS clock output driving up to 15 pF CMOS load, with VOL max 0.5 V and VOH min 80% VDD. |
| 4 | VDD | power_in | Supply voltage pin, 3.135 V min, 3.3 V typ, 3.465 V max. |
Key specifications
| Parameter | Value |
|---|---|
| Manufacturer | ECS |
| Package | SMD3225-4P |
| Category | Electronic Tools/Instruments/Consumables |
| 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 |
|---|---|---|---|---|---|---|---|
| Nominal frequency | 14.7456 | MHz | Developed frequency abbreviation 147.4 | 2 | |||
| Frequency stability vs temperature | -2.5 | 2.5 | PPM | Vs. Temp (-30 ~ +85°C); blank suffix = ±2.5 ppm | 1 | ||
| Operating temperature | -30 | 85 | °C | Standard grade (blank suffix) | 1 | ||
| Input voltage VDD | VDD | 3.135 | 3.3 | 3.465 | VDC | 1 | |
| Frequency stability vs supply change | -0.3 | 0.3 | PPM | Vs. Supply Change (±5%) | 1 | ||
| Frequency stability vs load change | -0.3 | 0.3 | PPM | Vs. Load Change (±5%) | 1 | ||
| Frequency stability vs aging | -1 | 1 | PPM | Vs. Aging/Year | 1 | ||
| Current consumption | IDD | 6 | mA | 1 | |||
| Output low level | VOL | 0.5 | VDC | "0" Level | 1 | ||
| Output high level | VOH | 80 | % VDD | "1" Level | 1 | ||
| Output symmetry | 40 | 60 | % | @50% VDD Level | 1 | ||
| Rise and fall time | 10 | ns | 10% VDD to 90% Level | 1 | |||
| Start-up time | 2 | mS | 1 | ||||
| Phase noise | -135 | DBc/Hz | @ 1 KHz Offset | 1 | |||
| Storage temperature | -40 | 90 | °C | 1 |
Materials and finish
As the datasheet states them (page.json metadata.appearance; the 3D model's colours follow it).
| Part | Material | Colour / plating | Datasheet says | Page |
|---|---|---|---|---|
| contacts | gold | • Lead Finish Au Part Numbering Guide: Example ECS-TXO-3225-250-TR | 1 |
CAD (KiCad official)
- Symbol:
ECS-TXO-3225-147.4-TR - Footprint:
Crystal:Crystal_SMD_3225-4Pin_3.2x2.5mm - 3D model: SMD3225-4P (KiCad packages3D, STEP)
- 3D model files:
ecs-txo-3225-147-4-tr-etched.step/ecs-txo-3225-147-4-tr-etched.glbcarry the MPN laser-etched on the die in a toggleableAdom.LaserEtchgroup (Fusion-ready);ecs-txo-3225-147-4-tr.step/ecs-txo-3225-147-4-tr.glbare the bare package body.
Provenance
Data extracted from the manufacturer datasheet, not a distributor listing:
- Datasheet: ECS datasheet (2 pp, sha256
03856238f17eb7a1, retrieved 2026-11-08, tier: lcsc) - Extractor: parts-factory
2.0.0/extract_pins 0.3, primaryclaude-sonnet-5-5(text), consensusclaude-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).