CDB4351 Cirrus Logic Inc, CDB4351 Datasheet - Page 17

• Manufacturer Part Number: CDB4351
• Description: BOARD EVAL FOR CS4351 DAC
• Manufacturer: Cirrus Logic Inc
• Series: Popguard®r

Specifications of CDB4351

• Number Of Dac's: 2
• Number Of Bits: 24
• Outputs And Type: 1, Single Ended
• Sampling Rate (per Second): 192k
• Data Interface: Serial
• Dac Type: Voltage
• Voltage Supply Source: Analog and Digital
• Operating Temperature: -10°C ~ 70°C
• Utilized Ic / Part: CS4351
• Description/function: Audio D/A
• Operating Supply Voltage: 5 V
• Product: Audio Modules
• For Use With/related Products: CS4351
• Lead Free Status / RoHS Status: Contains lead / RoHS non-compliant
• Lead Free Status / RoHS Status: Lead free / RoHS Compliant, Contains lead / RoHS non-compliant
• Other names: 598-1152

DS566F1
4.4
LR C K
S C LK
SDIN
LRCK
LR C K
SCLK
SDIN
S C LK
SDIN
M SB
De-Emphasis Control
The device includes on-chip digital de-emphasis.
kHz. The frequency response of the de-emphasis curve will scale proportionally with changes in sample
rate, Fs.
Note:
least 32 cycles per LRCK period in format 2, 48 cycles in format 3, 40 cycles in format 4, and 36 cycles
in format 5.
M SB
MSB
-1 -2 -3 -4 -5
-1 -2 -3 -4 -5
De-emphasis is only available in Single-Speed Mode.
MSB
+1 +2 +3 +4 +5
Left Channel
+5 +4
+5 +4
Left C ha nnel
Left Channel
-10dB
Gain
+3 +2 +1
0dB
+3 +2 +1
dB
Figure 5. Left-Justified up to 24-Bit Data
-7
Figure 6. I²S, up to 24-Bit Data
LSB
LSB
Figure 7. Right-Justified Data
Figure 8. De-Emphasis Curve
-6 -5 -4 -3 -2 -1
3.183 kHz
T1=50 µs
F1
Figure 8
LSB
10.61 kHz
F2
MSB
M SB
shows the de-emphasis curve for F
-1 -2 -3 -4
-1 -2 -3 -4
T2 = 15 µs
Frequency
MSB
+1 +2 +3 +4 +5
+5 +4
+5 +4
R ight Cha nnel
R ig ht C ha nnel
R ight C ha nnel
+3 +2 +1
+3 +2 +1
LSB
LSB
-7
-6 -5 -4 -3 -2 -1
s
equal to 44.1
CS4351
LSB
17