User Guide

WLAN module

WLAN module supports WLANSize4.0 release. WLAN module is configured as Cellular engine SPI slave. WLAN

and Bluetooth co-existence is supported via BTH-WLAN interface. WLANSize4.0 has a reference clock of

external oscillator 38.4MHz and it is shared with BTHFMRDS2.0D.

Figure 53 WLAN module

High-speed USB

The device can transmit and receive USB data at high-speed (480 Mbit/s), full-speed (12 Mbit/s) and low-

speed (1.5Mbit/s). The external interface is the micro-B connector X3300. The interface between D3300 USB

transceiver and micro-B receptacle is the standard USB interface specified in the Universal Serial Bus

specification Rev. 2.0. The USB transfers signal and power over four-wire interface, which carries differential

data, Vbus and GND. Signalling occurs over differential data line D+ and D-. The clock is transmitted encoded

along with the differential data. ESD protection is done with USB ASIP Z3300. VBUS (+5V) is provided by the

host device. The circuit is protected from an overvoltage condition by transistor pair V3300 and reference

zenner diode V3301.

RM-412; RM-413

System Module and User Interface

Issue 1 COMPANY CONFIDENTIAL Page 6 –15