# 1XXD26000MAA

**KDS Daishinku** · Temperature Compensated Crystal Oscillators (TCXOs) · SMD2016-4P

1XXD26000MAA from KDS Daishinku, in a SMD2016-4P. 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 | GND | power_in | Ground pin listed as GND in the pin connection table; the datasheet gives no separate electrical limit for this pin. |
| 2 | GND | power_in | Ground pin listed as GND in the pin connection table; the datasheet gives no separate electrical limit for this pin. |
| 3 | Output | output | Clipped sine wave output (DC-coupled) with a minimum output level of 0.8 VP-P into the specified load of 10 kΩ // 10 pF, with 40/60 to 60/40 % symmetry. |
| 4 | VCC | power_in | Supply voltage input; the absolute maximum rating is -0.3 to +4.6 V, and recommended operation is at 1.8 V ±5%, 2.2 V ±5% or 2.8 V ±5% (1.71-1.89 V, 2.09-2.31 V or 2.66-2.94 V). |

## Key specifications

| Parameter | Value |
|---|---|
| Manufacturer | KDS Daishinku |
| Package | SMD2016-4P |
| 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 |
|---|---|---|---|---|---|---|---|
| Supply Voltage (1.8 V range) | VCC | 1.71 | 1.8 | 1.89 | V |  | 2 |
| Supply Voltage (2.2 V range) | VCC | 2.09 | 2.2 | 2.31 | V |  | 2 |
| Supply Voltage (2.8 V range) | VCC | 2.66 | 2.8 | 2.94 | V |  | 2 |
| Load Impedance (resistance part) | LOAD_R | 9 | 10 | 11 | kΩ |  | 2 |
| Load Impedance (parallel capacitance) | LOAD_C | 9 | 10 | 11 | pF |  | 2 |
| Operating Temperature Range | T_OPR | -40 |  | 85 | C |  | 2 |
| Supply Voltage (absolute maximum) | VCC | -0.3 |  | 4.6 | V |  | 2 |
| Storage Temperature Range | T_STG | -40 |  | 85 | C |  | 2 |
| Current Consumption |  |  |  | 1.5 | mA |  | 2 |
| Output Level | VP-P | 0.8 |  |  | VP-P | Note 1: clipped sine wave (DC-coupled) | 2 |
| Symmetry |  | 40 |  | 60 | % | GND level (DC cut) | 2 |
| Frequency Stability, Tolerance after 2 times reflow |  | -1.5 |  | 1.5 | ppm | After 2 times reflow; ref. to nominal frequency (note 2, 3) | 2 |
| Frequency Stability vs Temperature |  | -0.5 |  | 0.5 | ppm | TA=-30~+85C | 2 |
| Frequency Stability vs Temperature |  | -1 |  | 1 | ppm | TA=-40~-30C | 2 |
| Frequency Stability vs Drift Rate/Slope |  | -10 |  | 10 | ppb/s | @ 0.3C/s | 2 |
| Frequency Stability vs Hysteresis |  | -0.6 |  | 0.6 | ppm |  | 2 |
| Frequency Stability vs Supply Voltage |  | -0.1 |  | 0.1 | ppm | VCC=+1.8V±5%,+2.2V±5%,+2.8V±5% | 2 |
| Frequency Stability vs Load Variation |  | -0.1 |  | 0.1 | ppm | LOAD_R//C=(10kΩ//10pF)±10% | 2 |
| Frequency Stability vs Aging (1 year) |  | -1 |  | 1 | ppm/year | TA=Room ambient | 2 |
| Frequency Stability vs Aging (2 years) |  | -1.5 |  | 1.5 | ppm/2years | TA=Room ambient | 2 |
| Frequency Stability vs Aging (5 years) |  | -2.5 |  | 2.5 | ppm/5years | TA=Room ambient | 2 |
| Frequency Stability vs Aging (10 years) |  | -5 |  | 5 | ppm/10years | TA=Room ambient | 2 |
| G Sensitivity |  | -2 |  | 2 | ppb/G | Gamma Vector of all 3 axes from 30 to 1500Hz | 2 |
| Start Up Time |  |  |  | 2 | ms | @90% of final VOUT level | 2 |
| SSB Phase Noise at offset 1Hz |  |  |  | -50 | dBc/Hz | Relative to f0 level, offset 1Hz | 2 |
| SSB Phase Noise at offset 5Hz |  |  |  | -73 | dBc/Hz | Relative to f0 level, offset 5Hz | 2 |
| SSB Phase Noise at offset 10Hz |  |  |  | -80 | dBc/Hz | Relative to f0 level, offset 10Hz | 2 |
| SSB Phase Noise at offset 100Hz |  |  |  | -106 | dBc/Hz | Relative to f0 level, offset 100Hz | 2 |
| SSB Phase Noise at offset 1kHz |  |  |  | -134 | dBc/Hz | Relative to f0 level, offset 1kHz | 2 |
| SSB Phase Noise at offset 10kHz |  |  |  | -144 | dBc/Hz | Relative to f0 level, offset 10kHz | 2 |
| SSB Phase Noise at offset 100kHz |  |  |  | -152 | dBc/Hz | Relative to f0 level, offset 100kHz | 2 |

## 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 |
|---|---|---|---|---|
| housing | PET |  | Cover Tape : PET + Olefin Resin (Conductivity) | 8 |
| contacts |  | silver | Leads, such as solder, are not used for this product. (Lead Free) 17.6 About the existence of silver and mercury use | 13 |

## CAD (KiCad official)

- Symbol: `1XXD26000MAA`
- Footprint: `Crystal:Crystal_SMD_2016-4Pin_2.0x1.6mm`
- 3D model: SMD2016-4P (KiCad packages3D, STEP)
- 3D model files: `1xxd26000maa-etched.step` / `1xxd26000maa-etched.glb` carry the MPN laser-etched on the die in a toggleable `Adom.LaserEtch` group (Fusion-ready); `1xxd26000maa.step` / `1xxd26000maa.glb` are the bare package body.

## Provenance

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

- **Datasheet:** [KDS Daishinku datasheet](docs/1xxd26000maa-datasheet.pdf) (14 pp, sha256 `c0b212eb2ec656be`, retrieved 2026-10-21, 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/1xxd26000maa-datasheet.pdf)