# D4890

**Silicore(芯谷)** · IC · MSOP-8

D4890 from Silicore(芯谷), in a MSOP-8. 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 | SHUTDOWN | input | Logic shutdown control where '0' is the active state; at VDD=5V the datasheet gives a shutdown input-high threshold of 1.2 V and input-low threshold of 0.9 V. |
| 2 | BP | bidirectional | Analog ground for the inner OPAs, held at about half of VDD, and it needs a bypass capacitor Cb for half-supply filtering. |
| 3 | INP | input | Positive (non-inverting) amplifier input. |
| 4 | INN | input | Negative (inverting) amplifier input, used with external gain-setting resistors Ri and Rf. |
| 5 | Vout1 | output | Negative BTL output, driving one side of the 8Ω load. |
| 6 | VDD | power_in | Power supply input, specified for 2.2 V to 5.5 V operation with absolute maximum supply voltage of -0.3 V to 6 V. |
| 7 | GND | power_in | Ground reference for the device. |
| 8 | Vout2 | output | Positive BTL output, driving the other side of the 8Ω load. |

## Key specifications

| Parameter | Value |
|---|---|
| Manufacturer | Silicore(芯谷) |
| Package | MSOP-8 |
| Category |  |
| Pins | 8 |

## Electrical characteristics

Limits as printed in the datasheet (page.json `metadata.characteristics` carries them as data).

| Parameter | Symbol | Min | Typ | Max | Unit | Conditions | Page |
|---|---|---|---|---|---|---|---|
| Quiescent Power Supply Current | IDD |  | 3 | 8 | mA | VDD=5V; VIN=0V, 8Ω Load | 3 |
| Quiescent Power Supply Current | IDD |  | 2.5 | 7 | mA | VDD=5V; VIN=0V, No Load | 3 |
| Shutdown Current | ISD |  | 0.1 | 2 | μA | VDD=5V; VIN=0V, VSHD=GND, No Load | 3 |
| Output Offset Voltage | VOS | -50 | 6 | 50 | mV | VDD=5V | 3 |
| Output Power | PO | 0.9 | 1.1 |  | W | VDD=5V; THD+N<=1%, f=1KHz, 8Ω Load | 3 |
| Quiescent Power Supply Current | IDD |  | 2 | 7 | mA | VDD=3V; VIN=0V, 8Ω Load | 3 |
| Quiescent Power Supply Current | IDD |  | 1.5 | 6 | mA | VDD=3V; VIN=0V, No Load | 3 |
| Output Offset Voltage | VOS | -50 | 4 | 50 | mV | VDD=2.6V | 4 |
| Shutdown Voltage Input High | VSDIH |  | 1.2 |  | V | VDD=5V | 3 |
| Shutdown Voltage Input Low | VSDIL |  | 0.9 |  | V | VDD=5V | 3 |
| Total Harmonic Distortion+Noise | THD+N |  | 0.07 |  | % | VDD=5V; Po=0.5W, f=1KHz, 8Ω Load | 3 |
| Power Supply Rejection Ratio | PSRR |  | 60 |  | dB | VDD=5V; Input terminated with 10Ω, VDDRIPPLE=0.2VP-P, f=217Hz | 3 |
| Power Supply Rejection Ratio | PSRR |  | 61 |  | dB | VDD=5V; Input terminated with 10Ω, VDDRIPPLE=0.2VP-P, f=1KHz | 3 |
| Wake-up time | TWU |  | 100 |  | ms | VDD=5V | 3 |
| Shutdown Voltage Input High | VSDIH |  | 1 |  | V | VDD=3V | 3 |
| Shutdown Voltage Input Low | VSDIL |  | 0.7 |  | V | VDD=3V | 3 |
| Total Harmonic Distortion+Noise | THD+N |  | 0.08 |  | % | VDD=3V; Po=0.25W, f=1KHz, 8Ω Load | 3 |
| Output Power | PO |  | 310 |  | mW | VDD=3V; THD+N<=1%, f=1KHz, 8Ω Load | 3 |
| Power Supply Rejection Ratio | PSRR |  | 57 |  | dB | VDD=3V; Input terminated with 10Ω, VDDRIPPLE=0.2VP-P, f=217Hz | 3 |
| Power Supply Rejection Ratio | PSRR |  | 58 |  | dB | VDD=3V; Input terminated with 10Ω, VDDRIPPLE=0.2VP-P, f=1KHz | 3 |
| Wake-up time | TWU |  | 75 |  | ms | VDD=3V | 3 |
| Quiescent Power Supply Current | IDD |  | 1.7 |  | mA | VDD=2.6V; VIN=0V, 8Ω Load | 4 |
| Quiescent Power Supply Current | IDD |  | 1.2 |  | mA | VDD=2.6V; VIN=0V, No Load | 4 |
| Shutdown Current | ISD |  | 0.1 |  | μA | VDD=2.6V; VIN=0V, VSHD=GND, No Load | 4 |
| Shutdown Voltage Input High | VSDIH |  | 1 |  | V | VDD=2.6V | 4 |
| Shutdown Voltage Input Low | VSDIL |  | 0.7 |  | V | VDD=2.6V | 4 |
| Total Harmonic Distortion+Noise | THD+N |  | 0.08 |  | % | VDD=2.6V; Po=0.15W, f=1KHz, 8Ω Load | 4 |
| Output Power | PO |  | 230 |  | mW | VDD=2.6V; THD+N<=1%, f=1KHz, 8Ω Load | 4 |
| Power Supply Rejection Ratio | PSRR |  | 56 |  | dB | VDD=2.6V; Input terminated with 10Ω, VDDRIPPLE=0.2VP-P, f=217Hz | 4 |
| Power Supply Rejection Ratio | PSRR |  | 57 |  | dB | VDD=2.6V; Input terminated with 10Ω, VDDRIPPLE=0.2VP-P, f=1KHz | 4 |
| Wake-up time | TWU |  | 70 |  | ms | VDD=2.6V | 4 |
| Operating Supply Voltage |  | 2.2 |  | 5.5 | V |  | 2 |
| Operating Temperature |  | -40 |  | 85 | ℃ |  | 2 |
| Supply Voltage |  | -0.3 |  | 6 | V |  | 2 |
| Input Voltage |  | -0.3 |  |  | V | Maximum printed as VDD+0.3V | 2 |
| Junction Temperature |  | -40 |  | 150 | ℃ |  | 2 |
| Storage Temperature |  | -65 |  | 150 | ℃ |  | 2 |
| Thermal Resistance Junction-to-Ambient | θJA |  | 190 |  | ℃/W | MSOP8 package | 2 |
| Thermal Resistance Junction-to-Case | θJC |  | 56 |  | ℃/W | MSOP8 package | 2 |

## CAD (KiCad official)

- Symbol: `D4890`
- Footprint: `Package_SO:MSOP-8_3x3mm_P0.65mm`
- 3D model: MSOP-8 (KiCad packages3D, STEP)
- 3D model files: `d4890-etched.step` / `d4890-etched.glb` carry the MPN laser-etched on the die in a toggleable `Adom.LaserEtch` group (Fusion-ready); `d4890.step` / `d4890.glb` are the bare package body.

## Provenance

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

- **Datasheet:** [Silicore(芯谷) datasheet](https://jlcpcb.com/api/file/downloadByFileSystemAccessId/8603008292683993088) (11 pp, sha256 `0253f3a56ee9a3a2`, retrieved 2026-10-17, 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/d4890-datasheet.pdf)