Libertas

Libertas is the codename for the Marvel 88w838X series of wireless chipsets.

Baseband Processor Product Selection table

Part no.	b/g/a	Package option	CLK Type	Interface	Feature/Advantage
88W8305	b	TQFP 128pin 14x14x1.2 TBGA no option Flip chip Yes	20, 40, 44 CMOS only	CF SDIO (SPI)	TKIP (firmware) AES (hardware) WPA (firmware) Power Save
88W8381	b	TQFP 128pin 14x14x1.2 TBGA 132pin 8x8x1 Flip chip Yes	19.2, 20, 26, 38.4, 40, 44 COMS & Low swing sine wave	CF SDIO (SPI)	8305 + TKIP (hardware) 802.11e (QoS) 802.11i (Security) BT coex
88W8385	a/b/g	TQFP 128pin 14x14x1.2 TBGA 132pin 8x8x1 Flip chip Yes	19.2, 20, 26, 38.4, 40, 44 COMS & Low swing sine wave	CF SDIO (SPI) Generic SPI	8381 + a/g
88W8388	a/b/g	TQFP No TBGA 132pin 8x8x1 Flip chip Yes	19.2, 20, 26, 38.4, 40, 44 COMS & Low swing sine wave	SDIO (SPI) USB 2.0	8385 + TCP/IP termination NAND Flash I/F Audio Codec I/F

RF transceiver Product Selection table

Part no.	b/g/a	Package option	CLK Type	Feature/Advantage
88W8010	b/g	QFN 48pin 7x7x1 XFQFN 48pin 6x6x0.5	19.2, 20, 26, 38.4, 40, 44 CMOS	On chip 2.4GHz PA On chip Rx diversity Tx power@pin = +22dBm@11b, +16dBm@11g
88W8015	b/g	QFN 48pin 7x7x1 XFQFN 48pin 6x6x0.5	19.2, 20, 26, 38.4, 40 COMS & Low swing sine wave	On chip 2.4GHz PA Tx power@pin = +22dBm@11b, +16dBm@11g Enhanced filtering for cellular handsets Low swing sine wave CLK-in
88W8030/8031	a/b/g	QFN 56pin 8x8x1 XFQFN	8030 40MHz crystal 8031 19.2, 20, 26, 38.4, 40, 44 COMS	On chip 2.4GHz PA / Need ext.PA for 5GHz Tx power@pin = +22dBm@11b, +16dBm@11g, +0dBm@11a pre-Driver 8030 has internal OSC supply for BBP
88W8035/8036	a/b/g	QFN no XFQFN 56pin 7x7x0.5	8035 19.2, 20, 26, 38.4, 40 COMS & Low swing sine wave 8036 40MHz crystal	Need ext.PA for both 2.4GHz and 5GHz Tx power@pin = +0dBm@pre-Driver Enhanced filtering for cellular handsets 8036 has internal OSC supply for BBP Low swing sine wave CLK-in

• The OLPC utilizes a 88w8388 baseband processor along with a 88w8015 rf transceiver connected via an internal USB interface.

• The XBox 360 wireless module is also based on the 88w8388 and possibly can be used with the olpc firmware: http://www.free60.org/oldwiki/Wifi_Adapter

• There is a project to take the driver developed for the OLPC and utilized it for all of the libertas family including 88w8385 cf cards: http://projects.linuxtogo.org/projects/marvell8385/

• Currently there are still some issues regarding the openness of the firmware: http://dev.laptop.org/ticket/46