While we are waiting for our 4G iPods to arrive we decided to dissect AirPort Express (AX), Apple's portable WiFi (802.11g) base station featuring AirTunes audio streaming and a print server. AX is a sealed (RF welded) device, similar in form to the AC adapters for PowerBook and iPod, and getting into the ABS plastic case is not pretty. More than a little blood was shed...
Chips:
The Broadcom BCM4712KFB wireless network processor does most of the work; routing data, driving the radio and print serving.
Audio is passed to the Texas Instruments PCM2705 DAC which outputs analog and digital audio to the mini-stereo/optical jack.
