SI4770 데이터 시트보기 (PDF) - Silicon Laboratories

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SI4770

HIGH-PERFORMANCE CONSUMER ELECTRONICS BROADCAST RADIO RECEIVER AND HD RADIO TUNER

Silicon Laboratories 

Si4770/77-A20

Digital I/Q ZIF

(I2S)

QOUT (Pin 26)

IOUT (Pin 25)

IQFS (Pin24)

IQCLK (Pin 23)

Master

4-wire mode

Si4777

HD Radio Demod

Demod

Audio /Data

Decoders

Master

3-wire mode

X

AM/FM Analog demodulation

Weak signal processing

IBOC

blend

PLL

AM/FM

audio

Blended

audio

ASRC

ASRC

BLEND (Pin 30)

DCLK (Pin 29)

DFS (Pin 28)

DIN (Pin 27)

Blend Flag

Digital bit clock

Digital frame sync

HD audio (MP1)

DOUT2 (Pin 14)

DCLK2 (Pin 13)

DFS2 (Pin 18)

Blended audio

Digital bit clock

Digital frame sync

Master

DSP

Figure 22. System Implementation of HD-Radio Reception with IBOC Blend on the Si4777

Rev. 0.9

37

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