# WS480X

**wisesun** · RF Transceiver ICs · SOP-8

WS480X from wisesun, in a SOP-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 | GND | power_in | Ground pin for the receiver IC. |
| 2 | ANT | input | RF signal input pin; saturation input level is -20 dBm with RSC = 50 Ω. |
| 3 | VDD | power_in | Supply pin with an operating range of DC 2.0 V to 5.5 V; absolute maximum is 5.5 V. |
| 4 | CTH | input | Selects the reference signal mode for the internal data comparator; CTH source impedance is 145 kΩ. |
| 5 | DO | output | Demodulated digital data signal output. |
| 6 | SHUT | input | Shutdown control: connect to VDD to shut down and to GND for normal operation; SHUT pin low to receive start time is 3 ms. |
| 7 | NC | unconnected | Not connected; leave floating. |
| 8 | REFOSC | input | External crystal connection; the pin can also be driven by an external reference clock through a coupling capacitor with a peak-to-peak amplitude of 0.3 V to 0.7 V. |

## Key specifications

| Parameter | Value |
|---|---|
| Manufacturer | wisesun |
| Package | SOP-8 |
| Category | Radio Frequency Chip/Antenna |
| 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 |
|---|---|---|---|---|---|---|---|
| Supply voltage | VDD | 2 | 3.3 | 5.5 | V |  | 3 |
| Operating temperature | TA | -40 |  | 125 | ℃ |  | 3 |
| Supply voltage slope | θ |  |  | 1 | mV/μs |  | 3 |
| Supply voltage absolute maximum | VDD | -0.3 |  | 5.5 | V |  | 3 |
| Interface voltage | VIN | -0.3 |  |  | V |  | 3 |
| Junction temperature | TJ | -40 |  | 150 | ℃ |  | 3 |
| Storage temperature | TSTG | -65 |  | 150 | ℃ |  | 3 |
| Soldering temperature | TSDR |  |  | 255 | ℃ | Held for at least 30 s | 3 |
| ESD HBM rating | VHBM | -8 |  | 8 | kV | Human body model (HBM) | 3 |
| Supply voltage | VDD | 2 |  | 5.5 | V |  | 4 |
| Data rate | DR |  |  | 10 | kbps |  | 4 |
| Operating current | IOP |  | 3.4 |  | mA | fRF=315MHz,VDD=3.3V | 4 |
| Operating current | IOP |  | 3.47 |  | mA | fRF=315MHz,VDD=5V | 4 |
| Operating current | IOP |  | 3.76 |  | mA | fRF=433.92MHz,VDD=3.3V | 4 |
| Operating current | IOP |  | 3.87 |  | mA | fRF=433.92MHz,VDD=5V | 4 |
| Standby (sleep) current | ISTBY |  | 0.01 |  | µA | VSHUT=VDD | 4 |
| Receiver sensitivity |  |  | -114 |  | dBm | fRF = 315MHz / 2kbps | 4 |
| Receiver sensitivity |  |  | -115 |  | dBm | fRF = 433.92MHz / 2kbps | 4 |
| Receiver bandwidth | BW |  | 350 |  | kHz | fRF = 315MHz | 4 |
| IF frequency | fIF |  | 0.86 |  | MHz |  | 4 |
| IF bandwidth | fBW |  | 0.43 |  | MHz |  | 4 |
| Saturated input level |  |  | -20 |  | dBm | RSC = 50Ω | 4 |
| Reference oscillator input impedance | ZREFOSC |  | 290 |  | kΩ |  | 4 |
| Reference oscillator source current |  |  | 5.2 |  | µA |  | 4 |
| CTH source impedance | ZCTH |  | 145 |  | kΩ |  | 4 |
| CTH leakage current | IZCTH(leak) | -100 |  | 100 | nA | TA = +85°C | 4 |
| Receiver startup time |  |  | 4 |  | ms | From VDD power-up to reception | 4 |
| SHUT startup time |  |  | 3 |  | ms | From SHUT pin pulled low to reception | 4 |
| Load capacitance | CLOAD |  | 15 |  | pF |  | 5 |
| Crystal equivalent resistance | Rm |  |  | 60 | Ω |  | 5 |
| Crystal startup time | tXTAL |  | 400 |  | µs |  | 5 |
| Crystal frequency accuracy |  | -20 |  | 20 | ppm | Reference only; acceptable error limited by receiver bandwidth | 5 |

## CAD (KiCad official)

- Symbol: `WS480X`
- Footprint: `Package_SO:SOIC-8_3.9x4.9mm_P1.27mm`
- 3D model: SOP-8 (KiCad packages3D, STEP)
- 3D model files: `ws480x-etched.step` / `ws480x-etched.glb` carry the MPN laser-etched on the die in a toggleable `Adom.LaserEtch` group (Fusion-ready); `ws480x.step` / `ws480x.glb` are the bare package body.

## Provenance

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

- **Datasheet:** [wisesun datasheet](docs/ws480x-datasheet.pdf) (6 pp, sha256 `acd0ea37540c88db`, retrieved 2026-10-27, tier: lcsc)
- **Datasheet language:** Chinese. Pin names, descriptions, and specs on this page were extracted and translated to English by ds2sf; the linked PDF is the manufacturer original.
- **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/ws480x-datasheet.pdf)