参数资料
型号: CS48DV2B-DQZR
厂商: Cirrus Logic Inc
文件页数: 7/26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
DS875F2
Copyright 2009 Cirrus Logic
15
CONFIDENTIAL
CONFIDENTI
A
L
DRA
FT
DELP
HI
5.10 Switching Characteristics — Serial Control Port - SPI Master Mode
Figure 4. Serial Control Port - SPI Master 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.
fspisck
-Fxtal/2
2
MHz
SCP_CS falling to SCP_CLK rising 3
3. SCP_CLK PERIOD refers to the period of SCP_CLK as being used in a given application. It does not refer to a tested parameter
tspicss
-
11*DCLKP +
(SCP_CLK PERIOD)/2
-ns
SCP_CLK low time
tspickl
20
-
ns
SCP_CLK high time
tspickh
20
-
ns
Setup time SCP_MISO input
tspidsu
9-
ns
Hold time SCP_MISO input
tspidh
5-
ns
SCP_CLK low to SCP_MOSI output valid
tspidov
-8
ns
SCP_CLK low to SCP_CS falling
tspicsl
7-
ns
SCP_CLK low to SCP_CS rising
tspicsh
-
11*DCLKP +
(SCP_CLK PERIOD)/2
-ns
Bus free time between active SCP_CS
tspicsx
3*DCLKP
-
ns
SCP_CLK falling to SCP_MOSI output high-Z
tspidz
-20
ns
EE_CS#
SCP_CLK
SCP_MISO
SCP_MOSI
0
12
67
0
56
7
tspicss
tspickl
tspickh
tspidsu
tspidh
tspidov
A6
A5
A0
R/W
MSB
LSB
MSB
LSB
tspicsh
tspicsx
fspisck
tspidz
tspicsl
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