# XN297LBW

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

XN297LBW from Vollgo, 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 | CSN | input | SPI chip select (active low); the chip executes one SPI command per CSN falling edge from high to low. |
| 2 | SCK | input | SPI serial clock input, with a maximum SPI rate of 4 Mbps in normal operation and 1 Mbps in sleep and standby-I modes. |
| 3 | DATA | bidirectional | SPI slave data input/output, used as the serial data line for the SPI interface in the SOP8 package. |
| 4 | VDD | power_in | Power supply input, +2.3 V to +3.3 V DC (absolute maximum VDD is -0.3 V to 3.6 V); the chip operates normally only when VDD is above 2.2 V. |
| 5 | XC1 | input | Crystal oscillator input, connected to the external crystal (reference schematic uses a 16 MHz crystal). |
| 6 | XC2 | output | Crystal oscillator output; the reference schematic places a 510 ohm series resistor on this pin to ensure all crystal oscillator types start correctly. |
| 7 | VSS | power_in | Ground (GND) reference, 0 V. |
| 8 | ANT | passive | Antenna interface for the 2.4 GHz RF input/output. |

## Key specifications

| Parameter | Value |
|---|---|
| Manufacturer | Vollgo |
| Package | SOP-8 |
| Category | RF And Wireless |
| 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 (absolute max) | VDD | -0.3 |  | 3.6 | V |  | 15 |
| Input voltage (absolute max) | VI | -0.3 |  | 3.6 | V |  | 15 |
| Total power dissipation | Pd |  |  | 300 | mW | 温度= -40℃~85℃ | 15 |
| Operating temperature | TOP | -40 |  | 85 | ℃ |  | 15 |
| Storage temperature | TSTG | -40 |  | 125 | ℃ |  | 15 |
| Operating frequency | fOP | 2400 |  | 2483 | MHz |  | 16 |
| Data rate | DR | 0.25 |  | 2 | Mbps |  | 16 |
| Frequency deviation at 250kbps | Δf250K |  | 150 | 180 | KHz | 频率偏差为 250kbps | 16 |
| Frequency deviation at 1Mbps | Δf1M |  | 160 | 300 | KHz | 频率偏差为 1Mbps | 16 |
| Frequency deviation at 2Mbps | Δf2M |  | 320 | 550 | KHz | 频率偏差为 2Mbps | 16 |
| Typical output power | PRF | 2 | 8 | 11 | dBm | 典型输出功率 | 16 |
| Output power range | PRFC | -35 |  | 11 | dBm |  | 16 |
| Supply voltage (DC) | VDD | 2.3 | 3 | 3.3 | V |  | 18 |
| SPI data hold time | Tdh | 2 |  |  | ns |  | 25 |
| CSN signal valid time | Tcsd |  |  | 40 | ns |  | 25 |
| SCK frequency | Fsck |  |  | 8 | MHz |  | 26 |
| CSN setup time | Tcc | 2 |  |  | ns |  | 26 |
| CSN hold time | Tcch | 2 |  |  | ns |  | 26 |
| CSN high-impedance time | Tcdz |  |  | 40 | ns |  | 26 |
| Sleep mode current | ICC |  | 2 |  | uA |  | 15 |
| Standby-I current | ICC |  | 30 |  | uA |  | 15 |
| Standby-III current | ICC |  | 650 |  | uA |  | 15 |
| Standby-II current | ICC |  | 780 |  | uA |  | 15 |
| TX mode current | ICC |  | 9 |  | mA | TX @ -35dBm output power | 15 |
| TX mode current | ICC |  | 9.5 |  | mA | TX @ -20dBm output power | 15 |
| TX mode current | ICC |  | 16 |  | mA | TX @ 0dBm output power | 15 |
| TX mode current | ICC |  | 19 |  | mA | TX @ 2dBm output power | 15 |
| TX mode current | ICC |  | 30 |  | mA | TX @ 8dBm output power | 15 |
| TX mode current | ICC |  | 66 |  | mA | TX @ 13dBm output power | 15 |
| RX mode current | ICC |  | 16.5 |  | mA | RX @ 2Mbps | 15 |
| RX mode current | ICC |  | 15.5 |  | mA | RX @ 1Mbps | 15 |
| RX mode current | ICC |  | 15 |  | mA | RX @ 250kbps | 15 |
| PLL programming resolution | PLLres |  | 1 |  | MHz |  | 16 |
| Crystal frequency | fXTAL |  | 16 |  | MHz |  | 16 |
| Channel spacing at 250Kbps | FCH250K |  | 1 |  | MHz | 通道间隔为 250Kbps | 16 |
| Channel spacing at 1Mbps | FCH1M |  | 1 |  | MHz | 通道间隔为 1Mbps | 16 |
| Channel spacing at 2Mbps | FCH2M |  | 2 |  | MHz | 通道间隔为 2Mbps | 16 |
| 20dB bandwidth at 2Mbps | PBW1 |  | 2 |  | MHz | 发射带数据调制的 20dB 带宽@2Mbps | 16 |
| 20dB bandwidth at 1Mbps | PBW2 |  | 1 |  | MHz | 发射带数据调制的 20dB 带宽@1Mbps | 16 |
| 20dB bandwidth at 250Kbps | PBW3 |  | 500 |  | KHz | 发射带数据调制的 20dB 带宽@250Kbps | 16 |
| Maximum receive input level (BER<0.1%) | RXmax |  | 0 |  | dBm | 误码率<0.1%时的最大接收幅度 | 17 |
| Receiver sensitivity at 2Mbps | RXSENS1 |  | -83 |  | dBm | 0.1%BER @2Mbps | 17 |
| Receiver sensitivity at 1Mbps | RXSENS2 |  | -87 |  | dBm | 0.1%BER @1Mbps | 17 |
| Receiver sensitivity at 250Kbps | RXSENS3 |  | -91 |  | dBm | 0.1%BER @250Kbps | 17 |
| Ground voltage | VSS |  | 0 |  | V |  | 18 |

## CAD (KiCad official)

- Symbol: `XN297LBW`
- Footprint: `Package_SO:SOIC-8_3.9x4.9mm_P1.27mm`
- 3D model: SOP-8 (KiCad packages3D, STEP)
- 3D model files: `xn297lbw-etched.step` / `xn297lbw-etched.glb` carry the MPN laser-etched on the die in a toggleable `Adom.LaserEtch` group (Fusion-ready); `xn297lbw.step` / `xn297lbw.glb` are the bare package body.

## Provenance

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

- **Datasheet:** [Vollgo datasheet](https://jlcpcb.com/api/file/downloadByFileSystemAccessId/8590918279735296000) (57 pp, sha256 `5613fac1b6cd79ae`, retrieved 2026-10-17, 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:** 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/xn297lbw-datasheet.pdf)