DIO2133CT14

@@ -0,0 +1,53 @@+# DIO2133CT14++**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++- `DIO2133CT14CT14`++## CAD (KiCad official)++- Symbol: `DIO2133CT14`+- Footprint: `Package_SO:TSSOP-14_4.4x5mm_P0.65mm`+- 3D model: TSSOP-14 (KiCad packages3D, STEP)++## Provenance++Data extracted from the manufacturer datasheet, not a distributor listing:++- **Datasheet:** [DIOO datasheet](docs/dio2133ct14-datasheet.pdf) (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).++[Datasheet PDF](docs/dio2133ct14-datasheet.pdf)

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