Cirrus-logic CS4270 Instrukcja Użytkownika Pobierz pdf (Strona 16)

16 DS686F1

CS4270

Figure 9. Format 0, Left-Justified up to 24-Bit Data

LRCK

SCLK

Channel A - Left

SDATA

+3 +2 +1

LSB

+5 +4

MSB

-1 -2 -3 -4 -5 +3 +2 +1

LSB

+5 +4

MSB

-1 -2 -3 -4

Channel B - Right

Figure 10. Format 1, I²S up to 24-Bit Data

LRCK

SCLK

SDINx

+3 +2 +1+5 +4

-1 -2 -3 -4 -5

+3 +2 +1+5 +4

-1 -2 -3 -4

MSB

LSB LSB

Channel A - Left Channel B - Right

LRCK

SCLK

SDATA

+4 +3 +2

MSB

-1 -2 -3 -4 -5

32 clocks

Right Channel

LSB

+4 +3 +2

-1 -2 -3 -4

-5

-6

Channel B - Right

LSB MSB LSB

Channel A - Left

Figure 11. Format 2 or 3, Right-Justified 16-Bit or 24-Bit Data (Serial Control Port Mode Only)

1 2 ... 11 12 13 14 15 16 17 18 19 20 21 ... 44 45

D/A Features 1
A/D Features 1
System Features 1
Calibration 2
TABLE OF CONTENTS 3
1. PIN DESCRIPTIONS 4
1.2 Stand-Alone Mode 5
3. TYPICAL CONNECTION DIAGRAM 7
ABSOLUTE MAXIMUM RATINGS 8
DAC ANALOG CHARACTERISTICS 9
ADC ANALOG CHARACTERISTICS 11
DC ELECTRICAL CHARACTERISTICS 13
DS686F1 15 15
16 DS686F1 16
I²S up to 24-Bit Data 16
5. APPLICATIONS 19
5.1.4 Clock Ratio Selection 20
5.1.5 Interpolation Filter 20
5.1.6 High-Pass Filter 20
5.2 Serial Control Port Mode 21
5.2.3 System Clocking 22
5.2.4 Clock Ratio Selection 22
Using the High-Pass Filter 23
5.5 Analog Connections 25
5.5.1 Input Component Values 25
26 DS686F1 26
5.5.2 Output Connections 27
5.6 Mute Control 27
6. SOFTWARE MODE 28
6.2.1 SPI Write 29
6.2.2 SPI Read 30
7. REGISTER QUICK REFERENCE 31
8. REGISTER DESCRIPTION 32
8.3.2 Ratio Select (Bits 3:1) 33
9. FILTER PLOTS 38
10.PARAMETER DEFINITIONS 42
11.PACKAGE DIMENSIONS 43
THERMAL CHARACTERISTICS 43
12.ORDERING INFORMATION 44
13.REVISION HISTORY 44
DS686F1 45 45

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