CS4385-CQZR Cirrus Logic Inc, CS4385-CQZR Datasheet - Page 15

• Manufacturer Part Number: CS4385-CQZR
• Description: IC,D/A CONVERTER,OCTAL,24-BIT,QFP,48PIN
• Manufacturer: Cirrus Logic Inc

Specifications of CS4385-CQZR

• Number Of Bits: 24
• Data Interface: Serial
• Number Of Converters: 8
• Voltage Supply Source: Analog and Digital
• Power Dissipation (max): 520mW
• Operating Temperature: -40°C ~ 85°C
• Mounting Type: Surface Mount
• Package / Case: 48-LQFP
• Lead Free Status / RoHS Status: Lead free / RoHS Compliant
• For Use With: 598-1154 - BOARD EVAL FOR CS4385 DAC
• Settling Time: -
• Lead Free Status / RoHS Status: Lead free / RoHS Compliant

DS671F2
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
TDM LRCK hightime pulse
SDIN Setup Time Before SCLK Rising Edge
SDIN Hold Time After SCLK Rising Edge
14. After powering up, RST should be held low until after the power supplies and clocks are settled.
15. See
16. Not valid for TDM Mode.
17. MSB of CH1 is always the second SCLK rising edge following LRCK rising edge.
Tables 1
-
3
for suggested MCLK frequencies.
Parameters
L R C K
S C L K
S D IN 1
LRCK
SCLK
SDINx
Figure 2. TDM Serial Audio Interface Timing
Figure 1. Serial Audio Interface Timing
t
lc k s
L
= 20 pF.
t
lp w
t
s c k h
Double-Speed Mode
Double-Speed Mode
t
lcks
Single-Speed Mode
Single-Speed Mode
Quad-Speed Mode
Quad-Speed Mode
t
ds
t
s c k l
t
d s
t
sckh
t
MSB
dh
(Note 14)
(Note 15)
(Note 16)
(Note 17)
t
lc k d
M S B
t
d h
t
sckl
t
Symbol
lc k s
MSB-1
t
t
t
t
t
sckh
Fs
Fs
Fs
sckl
lcks
lckd
t
t
F
F
F
lpw
ds
dh
M S B - 1
s
s
s
1/f
1.024
Min
100
170
45
50
84
45
45
SCLK
1
4
4
8
8
5
5
3
5
7/f
Max
55.2
108
216
108
216
55
54
54
55
55
SCLK
-
-
-
-
-
-
-
CS4385
Units
MHz
kHz
kHz
kHz
kHz
kHz
kHz
ms
ns
ns
ns
ns
ns
ns
ns
%
%
%
15