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1XTV20950PAA

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KDS Daishinku Temperature Compensated Crystal Oscillators (TCXO), SMD3225-4P. Pinout cross-checked by two models against the datasheet, KiCad symbol/footprint/3D.

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1XTV20950PAA

KDS Daishinku · Temperature Compensated Crystal Oscillators (TCXO) · SMD3225-4P

1XTV20950PAA from KDS Daishinku, 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 VCONT input Frequency control voltage input with a recommended range of +0.5 V to +2.5 V (+1.5 V typical), giving a positive slope with a control range of ±5 to ±12 ppm and an input resistance of 500 kΩ min.
2 GND power_in Ground connection for the oscillator.
3 Output output Clipped sine wave output (DC-coupled) with a minimum output level of 0.8 Vp-p, measured into LOAD_R 10 kΩ and LOAD_C 10 pF.
4 VCC power_in Supply voltage input with a recommended range of +2.85 V to +3.15 V (+3.0 V typical) and an absolute maximum rating of -0.3 V to +4.6 V.

Key specifications

Parameter Value
Manufacturer KDS Daishinku
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
Supply Voltage (absolute maximum) VCC -0.3 4.6 V 2
Storage Temperature Range T_STG -40 90 C 2
Supply Voltage (recommended) VCC 2.85 3 3.15 V 2
Load Impedance (resistance part) LOAD_R 9.5 10 10.5 kΩ 2
Load Impedance (parallel capacitance) LOAD_C 9.5 10 10.5 pF 2
Control Voltage Range VCONT 0.5 1.5 2.5 V 2
Operating Temperature Range T_OPR -30 85 C 2
Current Consumption 2 mA 2
Output Level 0.8 VP-P Note 1: clipped sine wave (DC-coupled) 2
Symmetry (GND level, DC cut) 40 60 % GND level (DC cut) 2
Harmonics -5 dBc 2
Frequency Stability - Tolerance -1.5 1.5 ppm After 2 times reflow; ref. to nominal frequency 2
Frequency Stability - vs Temperature -2.5 2.5 ppm TA=-30~+85C; ref. to frequency (TA=+25C) 2
Frequency Stability - vs Supply Voltage VCC -0.3 0.3 ppm VCC=+3.0V±5% 2
Frequency Stability - vs Load Variation -0.3 0.3 ppm LOAD_R//C=(10kΩ//10pF)±5% 2
Frequency Stability - vs Aging -0.5 0.5 ppm/year TA=Room ambient 2
Start Up Time 2 ms @90% of final Vout level 2
Frequency Control - Control Range -5 12 ppm VCONT=+1.5V±1.0V; positive slope (note 4) 2
Frequency Control - Input Resistance 500 kΩ 2
SSB Phase Noise @ 10 Hz offset -86 dBc/Hz Relative to f0 level, offset 10Hz 2
SSB Phase Noise @ 100 Hz offset -115 dBc/Hz Relative to f0 level, offset 100Hz 2
SSB Phase Noise @ 1 kHz offset -138 dBc/Hz Relative to f0 level, offset 1kHz 2
SSB Phase Noise @ 10 kHz offset -146 dBc/Hz Relative to f0 level, offset 10kHz 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: 1XTV20950PAA
  • Footprint: Crystal:Crystal_SMD_3225-4Pin_3.2x2.5mm
  • 3D model: SMD3225-4P (KiCad packages3D, STEP)
  • 3D model files: 1xtv20950paa-etched.step / 1xtv20950paa-etched.glb carry the MPN laser-etched on the die in a toggleable Adom.LaserEtch group (Fusion-ready); 1xtv20950paa.step / 1xtv20950paa.glb are the bare package body.

Provenance

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

  • Datasheet: KDS Daishinku datasheet (14 pp, sha256 e606fa0611241354, retrieved 2026-10-16, 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