参数资料
型号: CS48DV2B-DQZR
厂商: Cirrus Logic Inc
文件页数: 6/26页
文件大小: 0K
描述: IC DSP AUDIO 32BIT 2CH 48-LQFP
标准包装: 2,000
系列: CS48DV2
类型: 定点
接口: I²C,SPI
时钟速率: 150MHz
电压 - 输入/输出: 3.30V
电压 - 核心: 1.80V
工作温度: -40°C ~ 85°C
安装类型: 表面贴装
封装/外壳: 48-LQFP
供应商设备封装: 48-LQFP(7x7)
包装: 带卷 (TR)
CS48DV2B Data Sheet
32-bit Audio DSP for Dedicated Dolby Volume and Audistry by Dolby
14
Copyright 2009 Cirrus Logic
DS875F2
CONFIDENTIAL
CONFIDENTI
A
L
DRA
FT
D
ELPHI
5.9 Switching Characteristics — Serial Control Port - SPI Slave Mode.
Figure 3. Serial Control Port - SPI Slave Mode Timing
Parameter
Symbol
Min
Typical
Max
Units
SCP_CLK frequency1
1. The specification fspisck indicates the maximum speed of the hardware. The system designer should be aware that the actual
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 Fxtal/3.
fspisck
-25
MHz
SCP_CS falling to SCP_CLK rising
tspicss
24
-
ns
SCP_CLK low time
tspickl
20
-
ns
SCP_CLK high time
tspickh
20
-
ns
Setup time SCP_MOSI input
tspidsu
5-
ns
Hold time SCP_MOSI input
tspidh
5-
ns
SCP_CLK low to SCP_MISO output valid
tspidov
-11
ns
SCP_CLK falling to SCP_IRQ rising
tspiirqh
-20
ns
SCP_CS rising to SCP_IRQ falling
tspiirql
0ns
SCP_CLK low to SCP_CS rising
tspicsh
24
-
ns
SCP_CS rising to SCP_MISO output high-Z
tspicsdz
-20
ns
SCP_CLK rising to SCP_BSY falling
tspicbsyl
-3*DCLKP+20
ns
SCP_BSY
SCP_CS
SCP_CLK
SCP_MOSI
SCP_MISO
SCP_IRQ
0
1
267
0
56
7
tspicss
tspickl
tspickh
tspidsu
tspidh
tspidov
A6
A5
A0
R/W
MSB
LSB
MSB
LSB
tspicsh
tspibsyl
tspiirql
tspiirqh
fspisck
tspicsdz
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