component
DIO2133CT14
Public Made by Adomby adom
DIOO Audio Power OpAmps, TSSOP-14. Pinout extracted from 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
markdownDIO2133CT14
DIOO · Audio Power OpAmps · TSSOP-14
DIO2133CT14 from DIOO, in a TSSOP-14. Pinout and pin descriptions extracted from the manufacturer datasheet by ds2sf; symbol, footprint, and 3D from KiCad-official CAD.
Pinout
| Pin | Name | Type | Function |
|---|---|---|---|
| 1 | +INR | input | Right-channel positive (non-inverting) differential audio input. AC-coupled through CIN to source; gain set by external RIN and Rfb. |
| 2 | -INR | input | Right-channel negative (inverting) differential audio input. Feedback resistor Rfb connects between this pin and OUTR to set closed-loop gain (±1V/V to ±10V/V). |
| 3 | OUTR | output | Right-channel audio output. Drives 600Ω load direct-coupled (no DC-blocking cap required) up to 3Vrms with 5V supply; HBM ESD-protected to 8kV. |
| 4 | SGND | power_in | Signal (analog) ground reference for the audio input stages. Tie to system analog ground plane; keep isolated from PGND return currents. |
| 5 | EN | input | Chip enable, active-high (VIH ≥ 1.2V at VDD=5V, ≥1.1V at 3.3V; VIL ≤ 0.4V/0.3V). Driving EN low places the device in shutdown with ~90dB input-to-output attenuation and ≤1mA IDD. |
| 6 | PVSS | power_out | Negative supply rail generated by the internal charge pump. Bypass to ground with a 1µF CPVSS reservoir capacitor; provides the negative rail that eliminates the need for output DC-blocking capacitors. |
| 7 | CN | bidirectional | Charge-pump flying capacitor negative terminal. Connect a 1µF CPUMP capacitor between CP (pin 8) and CN; switching frequency ≈310kHz. |
| 8 | CP | bidirectional | Charge-pump flying capacitor positive terminal. Connect a 1µF CPUMP capacitor between CP and CN (pin 7). |
| 9 | PVDD | power_in | Positive supply input, 3.0V to 5.5V (absolute max 7.5V). Powers the driver and charge pump; bypass locally to PGND. IDD ≈ 11mA at 3.3V, 12mA at 5V (no load). |
| 10 | PGND | power_in | Power ground return for PVDD and the charge-pump output stage. Route as low-impedance path to the supply bypass; separate from SGND at a single star point. |
| 11 | UVP | input | External under-voltage detection input; typical threshold VUVP = 1.11V (1.08V min, 1.14V max) with 5µA hysteresis current. Drive from a resistor divider off the monitored rail; when the divided voltage falls below VUVP the outputs are muted for pop-free shutdown. |
| 12 | OUTL | output | Left-channel audio output. Drives 600Ω load direct-coupled (no DC-blocking cap required) up to 3Vrms with 5V supply; HBM ESD-protected to 8kV. |
| 13 | -INL | input | Left-channel negative (inverting) differential audio input. Feedback resistor Rfb connects between this pin and OUTL to set closed-loop gain (±1V/V to ±10V/V). |
| 14 | +INL | input | Left-channel positive (non-inverting) differential audio input. AC-coupled through CIN to source; gain set by external RIN and Rfb. |
Key specifications
| Parameter | Value |
|---|---|
| Manufacturer | DIOO |
| Package | TSSOP-14 |
| Category | Op-amp/Cmp |
| Pins | 14 |
Ordering variants
Same part, different packaging or reel option.
DIO2133CT14
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 | -0.3 | 7.5 | V | 3 | |||
| Minimum load impedance | 600 | Ω | 3 | ||||
| EN to GND | -0.3 | V | 3 | ||||
| Storage Temperature Range | -65 | 150 | °C | 3 | |||
| Junction Temperature | -65 | 150 | °C | 3 | |||
| HBM ESD, Output Pins | 8 | kV | HBM, JESD22-A114, output pins | 3 | |||
| Supply Voltage | VDD | 3 | 5 | 5.5 | V | 3 | |
| Operating Temperature Range | TA | -40 | 85 | °C | 3 | ||
| Output Offset Voltage | VOS | -3.3 | 0 | 3.3 | mV | VDD=3-5V, Input grounded, unity gain | 4 |
| External under-voltage detection | VUVP | 1.08 | 1.11 | 1.14 | V | 4 | |
| Thermal resistance, junction to ambient | ӨJA | 115 | °C/W | TSSOP-14 | 3 | ||
| EN High level Input Voltage | VIH | 1.2 | V | VDD=5V | 3 | ||
| EN High level Input Voltage | VIH | 1.1 | V | VDD=3.3V | 3 | ||
| EN Low level Input Voltage | VIL | 0.4 | V | VDD=5V | 3 | ||
| EN Low level Input Voltage | VIL | 0.3 | V | VDD=3.3V | 3 | ||
| VDD Over Voltage Protection | OVP | 5.7 | V | VDD>5.5V, then IC shut down | 4 | ||
| Power supply rejection ratio | PSRR | 90 | dB | 4 | |||
| High level output voltage | VOH | 4.9 | V | VDD=5V,RL=2.5kΩ | 4 | ||
| High level output voltage | VOH | 3.2 | V | VDD=3.3V,RL=2.5kΩ | 4 | ||
| Low level output voltage | VOL | -4.8 | V | VDD=5V,RL=2.5kΩ | 4 | ||
| Low level output voltage | VOL | -3.1 | V | VDD=3.3V,RL=2.5kΩ | 4 | ||
| EN high level input current | IIH | 1 | µA | VDD=5V,VI=VDD | 4 | ||
| EN low level input current | IIL | 1 | µA | VDD=5V,VI=0V | 4 | ||
| Supply current | IDD | 11 | mA | VDD=3.3V, VI=VDD, No load | 4 | ||
| Supply current | IDD | 12 | mA | VDD=5V, VI=VDD, No load | 4 | ||
| Supply current, shut down mode | IDD | 1 | mA | Shut down mode, VDD=3-5V | 4 | ||
| Output Voltage | VO | 2.05 | VRMS | THD=1%, VDD=3.3V, f=1kHz | 4 | ||
| Total harmonic distortion + noise | THD+N | 0.001 | % | VO=2VRMS, f=1kHz, RL=600Ω | 4 | ||
| Channel crosstalk | XTALK | 95 | dB | VO=2VRMS, f=1kHz | 4 | ||
| Maximum output current | IO | 60 | mA | VDD=3.3V | 4 | ||
| Signal noise ratio | SNR | 112 | dB | VO=2VRMS, BW=22kHz, A-weighted | 4 | ||
| Slew rate | SR | 12 | V/µs | 4 | |||
| Noise output voltage | VN | 4.5 | µVRMS | BW=20Hz to 22kHz,VDD=3.3V | 4 | ||
| Unity gain bandwidth | GBW | 7 | MHz | 4 | |||
| Open loop voltage gain | AVO | 140 | dB | 4 | |||
| External under-voltage detection hysteresis current | IHys | 5 | µA | 4 | |||
| Charge pump frequency | fCP | 310 | kHz | 4 | |||
| Input-to-output attenuation in shutdown | 90 | dB | EN=0V | 4 | |||
| Output Voltage | VO | 3.01 | VRMS | THD=1%, VDD=5V, f=1kHz | 5 | ||
| Output Voltage | VO | 3.1 | VRMS | THD=1%, VDD=5V, f=1kHz, RL=100kΩ | 5 | ||
| Total harmonic distortion + noise | THD+N | 0.001 | % | VO=3VRMS, f=1kHz, RL=600Ω | 5 | ||
| Channel crosstalk | XTALK | 95 | dB | VO=3VRMS, f=1kHz | 5 | ||
| Maximum output current | IO | 60 | mA | VDD=5V | 5 | ||
| Signal noise ratio | SNR | 112 | dB | VO=3VRMS, BW=22kHz, A-weighted | 5 | ||
| Slew rate | SR | 12 | V/µs | 5 | |||
| Noise output voltage | VN | 5.1 | µVRMS | BW=20Hz to 22kHz,VDD=5V | 5 | ||
| Unity gain bandwidth | GBW | 7 | MHz | 5 | |||
| Open loop voltage gain | AVO | 140 | dB | 5 | |||
| External under-voltage detection hysteresis current | IHys | 5 | µA | 5 | |||
| Charge pump frequency | fCP | 310 | kHz | 5 | |||
| Input-to-output attenuation in shutdown | 90 | dB | EN=0V | 5 |
CAD (KiCad official)
- Symbol:
DIO2133CT14 - Footprint:
Package_SO:TSSOP-14_4.4x5mm_P0.65mm - 3D model: TSSOP-14 (KiCad packages3D, STEP)
- 3D model files:
dio2133ct14-etched.step/dio2133ct14-etched.glbcarry the MPN laser-etched on the die in a toggleableAdom.LaserEtchgroup (Fusion-ready);dio2133ct14.step/dio2133ct14.glbare the bare package body.
3D model downloads
Two STEP files. Same geometry, different body top:
| File | Size | Use it when |
|---|---|---|
dio2133ct14.step |
194 KB | You want the bare part, or you mark your own boards. |
dio2133ct14-etched.step |
2.4 MB | You want the part with DIO2133CT14 already on it. |
The marking in the etched file is real recessed geometry cut into the solid, not a texture or a decal: 611 faces against 237 in the bare model. It survives export, section views, and rendering in any CAD tool, and it drops straight into KiCad or Fusion with no extra setup.
Provenance
Data extracted from the manufacturer datasheet, not a distributor listing:
- Datasheet: DIOO datasheet (14 pp, sha256
f9f0b81bf6b10241, retrieved 2026-08-17, 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).