参数资料
型号: DSPB56725AF
厂商: Freescale Semiconductor
文件页数: 8/48页
文件大小: 0K
描述: DSP 24BIT AUD 250MHZ 80-LQFP
标准包装: 90
系列: DSP56K/Symphony
类型: 音频处理器
接口: 主机接口,I²C,SAI,SPI
时钟速率: 250MHz
非易失内存: 外部
芯片上RAM: 112kB
电压 - 输入/输出: 3.30V
电压 - 核心: 1.20V
工作温度: 0°C ~ 70°C
安装类型: 表面贴装
封装/外壳: 80-LQFP
供应商设备封装: 80-LQFP(14x14)
包装: 托盘
Symphony DSP56724/ DSP56725 Multi-Core Audio Processors, Rev. 2
Freescale Semiconductor
16
27
SS assertion to first SCK edge
CPHA = 0
Slave
Bypassed
2.0
× TC +2
35
ns
Very Narrow
2.0
× TC +1
25
ns
Narrow
0
ns
Wide
0
ns
CPHA = 1
Slave
Bypassed
10
ns
Very Narrow
0
ns
Narrow
0
ns
Wide
0
ns
28
Last SCK edge to SS not asserted
Slave
Bypassed
12
ns
Very Narrow
22
ns
Narrow
100
ns
Wide
200
ns
29
Data input valid to SCK edge (data input
set-up time)
Master
/Slave
Bypassed
0
ns
Very Narrow
0
ns
Narrow
0
ns
Wide
0
ns
30
SCK last sampling edge to data input not
valid
Master
/Slave
Bypassed
2
× TC + 10
20
ns
Very Narrow
2
× TC + 30
40
ns
Narrow
2
× TC + 60
70
ns
Wide
100.0
ns
31
SS assertion to data out active
Slave
5
ns
32
SS deassertion to data high impedance2
Slave
9
ns
33
SCK edge to data out valid
(data out delay time)
Master
/Slave
Bypassed
45
ns
Very Narrow
110
ns
Narrow
135
ns
Wide
225
ns
34
SCK edge to data out not valid
(data out hold time)
Master
/Slave
Bypassed
10
ns
Very Narrow
15
ns
Narrow
55
ns
Wide
105
ns
35
SS assertion to data out valid
(CPHA = 0)
Slave
14.0
ns
Table 9. Serial Host Interface SPI Protocol Timing (Continued)
No.
Characteristics1,3,4
Mode
Filter Mode
Expression
Min
Max
Unit
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