Wi-Fi And Bluetooth Modules - Huawei MediaPad 10 fhd Maintenance Manual

MediaPad10 FHD Maintenance Manual
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2.4 Wi-Fi and Bluetooth Modules

The Wi-Fi and Bluetooth modules of the S10 are designed based on the integrated chip
BCM4330 according to Huawei principle of normalization for Wi-Fi design. The BCM4330
chip integrates the IEEE 802.11b/g/n 2.4 GHz or 5.1 GHz solution (RF transceiving and
baseband demodulation) and a transceiver for the Bluetooth and FM modules. Signals from
the Bluetooth and FM modules are output by the transceiver of the BCM4330 chip to the
Hi6421 modulation and demodulation module on the AP side to implement the overall
functions of the BCM4330 chip. The BCM4330 chip can use external Wi-Fi power amplifiers
(PAs) or low-noise amplifier (LNAs) to improve Wi-Fi RF performance and provide higher
expandability. In particular, an external PA or LNA can be deployed in subsequent version
planning to improve Wi-Fi power and sensitivity to meet strict Wi-Fi RF performance
requirements of TMO in North America.
In terms of RF design for Wi-Fi, Bluetooth, and FM modules, the 2.4 GHz frequency band is
applied to Wi-Fi and Bluetooth modules. Both Wi-Fi and Bluetooth work in time division
duplex (TDD) mode and transmit or receive signals on the same antenna under switch control.
2012-10-09
Two channels of 26 MHz high-frequency clock drive and output
The Hi6421V200 chip integrates a 26 MHz clock oscillator drive.
The Hi6421V200 chip is compatible with 26 MHz input clocks.
Two channels of independent 26 MHz clock buffer output
Four LED DC drive ports
DR1 can be used for keypad backlight control. The drive current ranges from 5 to 40
mA.
DR3 maps to a red LED, DR4 maps to a green LED, and DR5 maps to a blue LED. They
support breath control.
One DC or linear motor drive
DR2 supports strong drive capability up to 250 mA.
Three-wire SPI interfaces to communicate with the processor
One charge pump boost converter
The boost converter outputs a 5 V voltage and a maximum of 60 mA current.
Built-in 12-bit HKADC to monitor physical status parameters in real time
The 12-bit HKADC can detect the voltage of the battery.
The 12-bit HKADC can detect the voltage of the coin battery.
The 12-bit HKADC can detect the three channels of external analog input voltages.
The 12-bit HKADC can detect the testability of other signals inside the chip.
Detecting changes to the electric energy of the battery by using a coulometer
Complete audio processing solution
Supporting normal system power-on and operations when the main battery is not
detected
Low-power design
The entire operating current of the chip is only 150 uA (typical value for the system in
dormant state) or 30 uA (when the system is powered off and only the RTC is working).
Over-voltage, over-heat, and over-current protection
Operating temperature: –30°C to +85°C
Huawei Confidential
INTERNAL
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