Wlan Module; Fm Transmitter Module; High-Speed Usb - Nokia RM-333 Service Manual

RM-333; RM-334; RM-335
System Module and User Interface

WLAN module

WLAN module HW53 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 BTHFMRDS2.1.

FM transmitter module

The FM transmitter module Si4713 is controlled by I2C from RAPIDO with left and right analog audio input
from the DAC33.

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.
Issue 2
Figure 65 WLAN module
Figure 66 FM transmitter
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