CS48DV2B-CQZR Cirrus Logic Inc, CS48DV2B-CQZR Datasheet - Page 14

• Manufacturer Part Number: CS48DV2B-CQZR
• Description: IC DSP AUDIO 32BIT 2CH 48-LQFP
• Manufacturer: Cirrus Logic Inc
• Type: Fixed Pointr

Specifications of CS48DV2B-CQZR

• Interface: I²C, SPI
• Clock Rate: 150MHz
• Voltage - I/o: 3.30V
• Voltage - Core: 1.80V
• Operating Temperature: 0°C ~ 70°C
• Mounting Type: Surface Mount
• Package / Case: 48-LQFP
• Lead Free Status / RoHS Status: Lead free / RoHS Compliant
• Non-volatile Memory: -
• On-chip Ram: -
• Lead Free Status / RoHS Status: Lead free / RoHS Compliant, Lead free / RoHS Compliant

CS48DV2B Data Sheet
32-bit Audio DSP for Dedicated Dolby Volume and Audistry by Dolby
5.9 Switching Characteristics — Serial Control Port - SPI Slave Mode
14
SCP_CLK frequency
SCP_CS falling to SCP_CLK rising
SCP_CLK low time
SCP_CLK high time
Setup time SCP_MOSI input
Hold time SCP_MOSI input
SCP_CLK low to SCP_MISO output valid
SCP_CLK falling to SCP_IRQ rising
SCP_CS rising to SCP_IRQ falling
SCP_CLK low to SCP_CS rising
SCP_CS rising to SCP_MISO output high-Z
SCP_CLK rising to SCP_BSY falling
SCP_MOSI
SCP_MISO
1. The specification f
SCP_IRQ
SCP_CS
SCP_CLK
SCP_BSY
maximum speed of the communication port may be limited by the firmware application. Flow control using the SCP_BSY pin
should be implemented to prevent overflow of the input data buffer. At boot the maximum speed is F
Parameter
spisck
1
f
spisck
t
indicates the maximum speed of the hardware. The system designer should be aware that the actual
spicss
Figure 3. Serial Control Port - SPI Slave Mode Timing
t
A6
spidsu
0
A5
t
1
spidh
Copyright 2009 Cirrus Logic
2
t
spickh
t
spickl
Symbol
CONFIDENTIAL
t
t
t
t
t
t
t
spicbsyl
f
t
spicsdz
t
t
t
A0
spidsu
spidov
spiirqh
spisck
spicss
spickh
spicsh
spiirql
spickl
spidh
6
t
spidov
R/W
7
Min
24
20
20
24
MSB
MSB
5
5
0
-
-
-
-
-
0
3
5
*
DCLKP+20
Typical
t
spiirqh
20
6
xtal
LSB
LSB
7
/3.
.
t
spibsyl
Max
25
20
11
-
-
-
-
-
-
t
spicsh
t
spicsdz
t
spiirql
DS875F2
Units
MHz
ns
ns
ns
ns
ns
ns
ns
ns
ns
ns
ns