A 7uW deep-sleep, ultra low-power WLAN baseband LSI for mobile applications

Low power IEEE 802.11n single input single output (SISO) wireless LAN (WLAN) baseband LSI has been developed for mobile applications. The multiple low power technologies such as on-chip power gating and high throughput technologies for expanding idle time are applied to the LSI. By minimizing always-on circuits and implementing them using thick gate-oxide transistors, 7uW stand-by power consumption is achieved with negligible shutdown/restart transition time. The built-in wake-up timer and on-chip CPU enables continuous transmit/receive operation without an external intervention.