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CS43L43-KZ Datasheet(PDF) 8 Page - Cirrus Logic

Part # CS43L43-KZ
Description  Low Voltage,Stereo DAC With Headphone Amp
Download  36 Pages
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Manufacturer  CIRRUS [Cirrus Logic]
Direct Link  http://www.cirrus.com
Logo CIRRUS - Cirrus Logic

CS43L43-KZ Datasheet(HTML) 8 Page - Cirrus Logic

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CS43L43
8
DS479PP3
3.3.2 Control Port Mode
The desired format is selected via the DIF0, DIF1 and DIF2 bits in the Mode Control 2 register (see
section 5.11.2) . For an illustration of the required relationship between LRCK, SCLK and SDATA,
see Figures 2-4.
3.4 De-Emphasis Control
The device includes on-chip digital de-emphasis. Figure 5 shows the de-emphasis curve for Fs equal to
44.1 kHz. The frequency response of the de-emphasis curve will scale proportionally with changes in sam-
ple rate, Fs. De-emphasis is not available in double-speed mode.
L RCK
SC L K
Le ft C h a n n e l
R igh t C h ann e l
SDAT A
+3 + 2 +1
+5 + 4
MS B
-1 -2 -3 -4 -5
+3 + 2 +1
+5 + 4
-1 -2 -3 -4
MS B
LS B
LS B
Figure 2. I2S Data
LR C K
SCL K
Left C h a nn el
R ight C h a n n e l
SD AT A
+3 +2 + 1
+5 +4
MS B
-1 -2 -3 -4 -5
+3 +2 +1
+5 +4
-1 -2 -3 -4
LS B
MS B
LS B
Figure 3. Left Justified up to 24-Bit Data
LR C K
SC LK
Le ft C h an n e l
SDAT A
-6 -5 -4 -3 -2 -1
-7
+1 + 2 +3 + 4 +5
3 2 clo cks
MS B
R ig h t C ha nn el
LSB
MS B
+1 + 2 +3 + 4 +5
LSB
-6 -5 -4 -3 -2 -1
-7
MS B
Figure 4. Right Justified Data
Gain
dB
-10dB
0dB
Frequency
T2 = 15 µs
T1=50 µs
F1
F2
3.183 kHz
10.61 kHz
Figure 5. De-Emphasis Curve


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