CDB4384 Cirrus Logic Inc, CDB4384 Datasheet - Page 14

• Manufacturer Part Number: CDB4384
• Description: Eval Bd 8Chn DAC W/DSD Supt&Low-Latnc DF
• Manufacturer: Cirrus Logic Inc

Specifications of CDB4384

• Number Of Dac's: 8
• Number Of Bits: 24
• Outputs And Type: 8, Single Ended
• Sampling Rate (per Second): 192k
• Data Interface: Serial
• Dac Type: Voltage
• Voltage Supply Source: Analog and Digital
• Operating Temperature: -40°C ~ 85°C
• Utilized Ic / Part: CS4384
• Description/function: Audio D/A
• Operating Supply Voltage: 5 V
• Product: Audio Modules
• Lead Free Status / RoHS Status: Contains lead / RoHS non-compliant
• For Use With/related Products: CS4384
• Lead Free Status / RoHS Status: Contains lead / RoHS non-compliant, Contains lead / RoHS non-compliant
• Other names: 598-1525

14
SWITCHING CHARACTERISTICS - PCM
(Inputs: Logic 0 = GND, Logic 1 = VLS, C
Notes:
RST pin Low Pulse Width
MCLK Frequency
MCLK Duty Cycle
Input Sample Rate - LRCK (Manual selection)
Input Sample Rate - LRCK (Auto detect)
LRCK Duty Cycle
SCLK Duty Cycle
SCLK High Time
SCLK Low Time
LRCK Edge to SCLK Rising Edge
SCLK Rising Edge to LRCK Falling Edge
SDIN Setup Time Before SCLK Rising Edge
SDIN Hold Time After SCLK Rising Edge
LRCK
SCLK
SDINx
14. After powering up, RST should be held low until after the power supplies and clocks are settled.
15. See
16. Not required for TDM Mode.
Figure 1. Serial Audio Interface Timing
Tables 1
-
t
lcks
3
t
ds
for suggested MCLK frequencies.
Parameters
t
sckh
t
MSB
dh
t
sckl
L
= 30 pF)
MSB-1
Double-Speed Mode
Double-Speed Mode
Single-Speed Mode
Single-Speed Mode
Quad-Speed Mode
Quad-Speed Mode
LRCK
SCLK
SDIN1
(Note 14)
(Note 15)
(Note 16)
Figure 2. TDM Serial Audio Interface Timing
t
lcks
Symbol
t
t
t
t
sckh
Fs
Fs
Fs
sckl
lckd
t
F
F
F
lcks
t
ds
dh
s
s
s
t
lckd
1.024
t
Min
100
170
lcks
45
50
84
45
45
1
4
4
8
8
5
5
3
5
t
ds
M S B
t
sckh
t
dh
Max
55.2
108
216
108
216
55
54
54
55
55
-
-
-
-
-
-
-
CS4384
t
sckl
DS620F1
M SB-1
Units
MHz
kHz
kHz
kHz
kHz
kHz
kHz
ms
ns
ns
ns
ns
ns
ns
%
%
%