WL700

@@ -0,0 +1,44 @@+# WL700++**WL** · RF Transceiver ICs · SOP-8++WL700 from WL, in a SOP-8. 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 | VSSRF | power_in | RF ground pin. Connect to the board ground plane. |+| 2 | ANT | input | RF signal input pin. Connects to the antenna matching network (typical: series C 2.2p with parallel L 27nH / C 4.7p and shunt L 33nH). |+| 3 | VDDRF | power_in | Power supply pin, 2.0-5.5 V (typical 3.3 V). Requires an external decoupling capacitor to ground; for 5 V applications insert a 47 Ω series resistor to protect the chip. |+| 4 | CTH | passive | Reference/threshold pin for the internal data slicer/comparator. Requires an external capacitor (typical 0.47 µF) to ground. Source impedance ~145 kΩ. |+| 5 | DO | output | Demodulated digital data output. In SHUTDOWN mode this pin is in a weak pull-down state. |+| 6 | SHUT | input | Shutdown control input. Tie to VDD for shutdown mode (0.1 µA typ.); tie to GND for normal operating (receive) mode. Startup time from SHUT-low to receiving is 3 ms. |+| 7 | CAGC | passive | AGC filter/hold capacitor pin. May be left unconnected (typical schematic shows optional cap C5 to ground; the datasheet explicitly notes pin 7 can be left floating). |+| 8 | REFOSC | passive | External reference crystal connection. Use 4.897 MHz for 315 MHz operation or 6.7458 MHz for 433.92 MHz operation. Input impedance ~290 kΩ, source current ~5.2 µA. |++## Key specifications++| Parameter | Value |+|---|---|+| Manufacturer | WL |+| Package | SOP-8 |+| Category | RF And Wireless |+| Pins | 8 |++## CAD (KiCad official)++- Symbol: `WL700`+- Footprint: `Package_SO:SOIC-8_3.9x4.9mm_P1.27mm`+- 3D model: SOP-8 (KiCad packages3D, STEP)++## Provenance++Data extracted from the manufacturer datasheet, not a distributor listing:++- **Datasheet:** [WL datasheet](https://jlcpcb.com/api/file/downloadByFileSystemAccessId/8588901246937796608) (8 pp, sha256 `b1cea904b90304a1`, retrieved 2026-08-17, 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:** `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/wl700-datasheet.pdf)

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