Redpine Signals

In 2001, Redpine Signals is a fabless semiconductor company that started its operation.
In 2005, Redpine Signals developed a low power 802.11 b/g chipset, for use SoC as a wireless interface.

The company established a single stream 802.11n Wi-Fi product in 2007 for handheld devices.

In 2012, Redpine Signals developed a dual-band Wi-Fi 11n/BT 4.0 + 5GHz MIMO 11ac SoC for smartphones and tablets.

The company also introduced a dual-band 450 Mbit/s 3x3 802.11n chipset for digital home and enterprise applications.

In 2020, Redpine Signals its connectivity business, including Wi-Fi and Bluetooth products, was acquired by Silicon Labs.

Wireless chipsets

MAC/BB chip	RFIC/PA chip	Interface	PHY modes	MIMO config	First seen (FCC)	Notes	Adapters	ESystems	PR / PPage
Pine1-LP		SDIO	bg			(2005) 802.11bg SDIO, (1st gen)	0 devices	0 devices
Lite-Fi	Maxim MAX2831 / Airoha AL8136	SDIO	bg (draft-n)	1x1:1		(2006) draft-n MAC/BB, SDIO, (2nd gen)	0 devices	0 devices
RS9110	Airoha AL8230	SDIO / SPI	abgn	1x1:1	2011-08-17	(2008) MAC/BB, Mobile/IoT 65Mbps (HT20-only}, (3rd gen)	0 devices	1 devices	PPage PR WFA
RS9113	RS8112-D	SPI / USB / SDIO	abgn	1x1:1	2014-12-23	802.11abgn MAC/BB 1x1 IoT Bluetooth 4.0 + ZigBee	1 devices	1 devices	PPage PBrief
RS9115	RS8112-D	SPI / USB / SDIO	abgn	1x1:1		802.11abgn MAC/BB 1x1 IoT Bluetooth 4.0 + ZigBee	0 devices	0 devices	PPage PBrief
RS9117	RS8112	SPI / USB / SDIO	abgn+ac	1x1:1		802.11abgn+ac MAC/BB 1x1 FE Bluetooth 4.0 BLE + ZigBee	0 devices	0 devices	PPage PBrief
RS9222	RS8221	PCIe / USB / SDIO	abgn+ac	2x2:2		802.11abgn+ac MAC/BB 2x2 Bluetooth 4.0 + ZigBee	0 devices	0 devices	PPage PBrief
RS9330	RS8330 (RFIC) / RS8331 (RFIC+PA)	PCIe / USB / SDIO	abgn	3x3:3		802.11abgn 3x3 MAC/BB	0 devices	0 devices	PPage PBrief
RS9333	RS8331	PCIe / USB / SDIO	abgn+ac	3x3:3		802.11abgn+ac, PCIe/USB/SDIO	0 devices	0 devices	PPage PBrief