Figure 67 FM transmitter
High-speed USB
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-505; RM-506
System Module and User Interface
Issue 1 COMPANY CONFIDENTIAL Page 8 –19
Copyright © 2009 Nokia. All rights reserved.
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