CS4221-KS Cirrus Logic Inc, CS4221-KS Datasheet - Page 8

• Manufacturer Part Number: CS4221-KS
• Description: IC, AUDIO CODEC, 24BIT, 50KHZ, SSOP-28
• Manufacturer: Cirrus Logic Inc

Specifications of CS4221-KS

• Audio Codec Type: Stereo
• No. Of Adcs: 2
• No. Of Dacs: 2
• No. Of Input Channels: 2
• No. Of Output Channels: 2
• Adc / Dac Resolution: 24bit
• Adcs / Dacs Signal To Noise Ratio: 105dB
• Lead Free Status / RoHS Status: Contains lead / RoHS non-compliant

SWITCHING CHARACTERISTICS - CONTROL PORT - SPI MODE (CS4221)
(T
Notes: 11. Not tested but guaranteed by design.
8
SPI Mode (SPI/I2C = 0)
CCLK Clock Frequency
RST rising edge to CS falling
CCLK edge to CS falling
CS High Time between transmissions
CS falling to CCLK edge
CCLK Low Time
CCLK High Time
CDIN to CCLK rising setup time
CCLK rising to DATA hold time
Rise time of CCLK and CDIN
Fall time of CCLK and CDIN
A
= 25° C; VA, VD = 4.75 V - 5.25 V; Inputs: Logic 0 = DGND, Logic 1 = VD; C
12. t
13. Data must be held for sufficient time to bridge the transition time of CCLK.
14. For F
spi
only needed before first falling edge of CS after RST rising edge. t
SCK
CCLK
CDIN
RST
< 1 MHz.
CS
Parameter
t srs
t spi
t r2
t css
Figure 2. SPI Control Port Timing
t scl
(Note 12)
(Note 13)
(Note 14)
(Note 14)
(Note 11)
t f2
t dsu
t sch
t dh
Symbol
t
t
t
f
t
t
t
t
t
csh
sch
dsu
t
t
sck
css
srs
spi
scl
dh
r2
f2
Min
500
1.0
41
20
66
66
40
15
L
-
-
-
= 30 pF)
spi
= 0 at all other times.
t csh
CS4220 CS4221
Max
100
100
6
-
-
-
-
-
-
-
-
DS284PP3
MHz
Unit
µs
ns
µs
ns
ns
ns
ns
ns
ns
ns