CS4362-KQZ Cirrus Logic Inc, CS4362-KQZ Datasheet - Page 31

• Manufacturer Part Number: CS4362-KQZ
• Description: IC,Audio Processor,QFP,48PIN,PLASTIC
• Manufacturer: Cirrus Logic Inc

Specifications of CS4362-KQZ

• Number Of Bits: 24
• Data Interface: Serial
• Number Of Converters: 6
• Voltage Supply Source: Analog and Digital
• Power Dissipation (max): 390mW
• Operating Temperature: -10°C ~ 70°C
• Mounting Type: Surface Mount
• Package / Case: 48-LQFP
• Lead Free Status / RoHS Status: Lead free / RoHS Compliant
• Settling Time: -
• Lead Free Status / RoHS Status: Lead free / RoHS Compliant, Lead free / RoHS Compliant
• Other names: 598-1644

DS257F2
7.4
7.4.1
SPI Format
In SPI format, CS is the CS4362 chip select signal, CCLK is the control port bit clock, CDIN is the input data
line from the microcontroller and the chip address is 0011000. CS, CCLK and CDIN are all inputs and data
is clocked in on the rising edge of CCLK.
Note:
Writing in SPI
Figure 8
first 7 bits on CDIN form the chip address and must be 0011000. The eighth bit is a read/write indicator
(R/W), which must be low to write. The next 8 bits form the Memory Address Pointer (MAP), which is set
to the address of the register that is to be updated. The next 8 bits are the data which will be placed into
register designated by the MAP. To write multiple registers, keep CS low and continue providing clocks
on CCLK. End the read transaction by setting CS high.
S D A
S C L
N o te : If o p e r a tio n is a w r ite , th is b y te c o n ta in s th e M e m o ry A d d r e s s P o in te r , M A P .
C C L K
C S
C D I N
The CS4362 is write-only when in SPI format.
shows the operation of the control port in SPI format. To write to a register, bring CS low. The
S ta rt
0 0 1 1 0 0
M A P = M e m o r y A d d r e s s P o i n t e r
A D D R E S S
0 0 1 1 0 0 0
C H I P
Figure 8. Control Port Timing, SPI Format
Figure 7. Control Port Timing, I²C Format
A D D R
A D 0
R /W
R / W
A C K
M A P
D A T A
1 -8
N o te 1
M S B
b y t e 1
A C K
D A T A
D A T A
1 -8
b y t e n
L S B
A C K
S to p
CS4362
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