TYPICAL CIRCUIT CONNECTION DIAGRAM

S0012-01

1

2

3

4

5

6

7

8

9

10

11

12

24

23

22

21

20

19

18

17

16

15

14

13

SYSCLK

DOUT

BCK

LRCK

RSTB

BYPAS

FMT0

FMT1

MODE0

MODE1

SYNC

+

4.7

µF

+

1.0

µF(2)

Analog

Front-End

Delta-Sigma

Decimation Filter

Digital Audio Interface

Reset

Clock

Audio

Data

Processor

Pin Program

or Control

Line In Left-Channel

+

1.0

µF(2)

Line In Right-Channel

GND

+5 V

+

4.7

µF

Ref

0.1

µF/10 µF(1)

0.1

µF/10 µF(1)

+

+

CEXT

470 pF

CEXT

470 pF

Signal Gnd

Analog

Front-End

PCM1800

www.ti.com ............................................................................................................................................... SBAS071B – OCTOBER 2000 – REVISED AUGUST 2008

Figure 28 is a typical circuit connection diagram for which the cutoff frequency of the input HPF is about 5 Hz.

(1)

Bypass capacitor = 0.1-

µF ceramic and 10-µF tantalum, depending on layout and power supply.

(2)

A 1-

µF capacitor gives a 5.3-Hz cutoff frequency for the input HPF in normal operation and requires a power-on

settling period with a 30-ms time constant during power-on initialization.

Figure 28. Typical Circuit Connection

Copyright © 2000–2008, Texas Instruments Incorporated

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