Cirrus-logic CS4270 User Manual download pdf (Page 7)

DS686F1 7

CS4270

3. TYPICAL CONNECTION DIAGRAM

Figure 1. CS4270 Typical Connection Diagram

CS (I2S/LJ) /AD0

SDA/CDOUT (M1)

SCL/CCLK (M0)

AINA

AINB

RST

Power

Down

and Mode

Settings

(Control Port)

AOUTA

MUTEA

AOUTB

MUTEB

Analog Output

Network

and Mute

LRCK

SCLK

MCLK

Timing Logic

and

Clocks

SDIN

)S(M/SDOUT

Audio Data

Processor

DGND

FILT+

AGND

VQ

VD

VA

+3.3 V to 5 V

+3.3 V to 5 V

CS4270

2

GND or VD

47 k

5.1

Analog Input

Network

47 µF 0.1 µF

10 µF

0.1 µF

1 µF0.1 µF

1 µF

If using separate supplies for

VA and VD, 5.1 resistor not

needed. See "Grounding and

Power Supply Decoupling."

VLC

+1.8 V to 5 V

2.

1

1

1.

3

3

3.

Use pull-up resistors in Software

Mode. In Stand-Alone Mode, use

pull-up or pull-down. See "Mode

Selection & De-Emphasis."

2 k



2 k

In Stand-Alone mode, use a

47 kO pull-down to select

Slave Mode or 47 kO pull-up to

VD to select Master Mode. See

"Master/Slave Mode Selection."

AD1/CDIN (MDIV2)

AD2 (MDIV1)

0.1 µF

0.1 µF

1 2 3 4 5 6 7 8 9 10 11 12 ... 44 45

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