Avnera AV6200 Benutzerhandbuch - Seite 4

Blättern Sie online oder laden Sie pdf Benutzerhandbuch für Kontrolleinheit Avnera AV6200 herunter. Avnera AV6200 11 Seiten. Wireless audio module

Avnera Corporation

- Time base of the RF frequency

For Zero IF and RF frequency, a crystal (16MHz) is a clock reference.

- Synthesizer

Synthesizer inside transceiver internal voltage controlled oscillator (VCO) provides the desired LO

Signal base on the phase-locked loop (PLL) with a relatively wide tuning range for this application.

- Transmission

In transmit mode, the audio engine controlled I2S, transforms the audio data into packetized digital IQ

signals. These are in turn pulse-shaped before conversion by a 10 bits 44Msps DAC to match to the analog

IQ inputs of the radio IC. The radio IC has programmable baseband filters to lower the RF spectrum side

lobes and to suppress the DAC image and the DAC spurious. The output power is programmable. A power

detector (PD_out) on the radio IC enables close-loop TX power control. The differential RF PA outputs are

connected via a balun and low pass filter to a transmit/receive switch with TX diversity option to the

antenna outputs.

- Receiver

In receive mode, antenna diversity is supported. The single ended output of the TR switch is connected

to the RF LNA input through a matching network. Filtering and amplification is all performed by the

radio transceiver. The gain setting is controlled by the BB. The analog IQ outputs are sampled by the

BB by its integrated 22 Msps dual channel 8bit ADC. This received data is demodulated and fed to the

audio processing engine controlling the I2S connections.

- Power Control Level

The integrated PA for this device can transmit at a maximum power of +4dBm for class 2 operation.

- Transmit/Receive Switch

DUT has Transmit/Receive Switch. End user can't select any power setting.

Application for Wireless audio module

The application for the Tx and Rx modules is for the wireless link between a Samsung Sound Bar and a sub-

woofer

Samsung Module PRD

AVNERA CONFIDENTIAL

Samsung Module Manual

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