UniFi-1 Portable

Description
UniFi-1 portable b/g single chip device supports IEEE 802.11b and IEEE 802.11g standards on a single die, operating in the 2.4GHz radio band.
The RF front-end includes the CCK modem (used for 802.11b) and the OFDM modem (used for 802.11g). Dual RISC processors and hardware accelerators for 802.11 MAC functons and encryption are provided, delivering full 54Mbps operation. The devices provide full QoS for 802.11e and security support for 802.11i.

Radio
Fully integrated VCO
Fully integrated direct conversion receiver
Baseband for 2.4GHz
Fast AGC and wide dynamic range allow excellent robustness against fading
No production trims or adjustments required
Support for common cellular reference frequencies
On-chip crystal driver

Transmitter
No external PA required for short-range cellular handset applications
Supports external PA for enhanced range
Low output spurii in cellular bands
Supports power compensation for stable transmit power across temperature

Receiver
Good receiver sensitivity
Supports an external LNA for enhanced sensitivity
High cellular blocking for good coexistence with cellular radios

Synthesiser
Fully integrated synthesiser; no external VCO varactor diode, resonator or loop filter

Processor Subsystem
Dual 60MHz RISC processors
Independent dedicated on-chip instruction and data RAMs per CPU
Separate timers, interrupt controller and watchdog for each CPU

MAC Accelerator
Supports BSS and IBSS
Control of radio TX power on per-packet basis
EDCA (802.11e QoS packet scheduling)

Auxiliary Features
Two 8-bit DACs

CCK Modem
Supports 1, 2, 5.5 and 11Mbps modes

OFDM Modem
Supports 6, 9, 12, 18, 24, 36, 48 and 54Mbps
Options for partial clocking for power saving
Dynamic power saving

Physical Interfaces
SDIO interface (incorporating SPI bus mode)
Unity coexistence interface

Encryption
Hardware support for WEP40/64, WEP104/128, AES and TKIP

Package Options
88-ball WLCSP 5.8mm x 6.4mm x 0.7mm 0.5mm pitch, Pb-free


For further information, please contact kellyb@spectre-online.co.uk