Symphony DSP56720/DSP56721 Multi-Core Audio Processors, Rev. 5 Freescale Semicon" />
參數(shù)資料
型號: DSPB56720AG
廠商: Freescale Semiconductor
文件頁數(shù): 6/54頁
文件大?。?/td> 0K
描述: AUDIO PROCESSOR SYMPH 144-LQFP
標準包裝: 60
系列: DSP56K/Symphony
類型: 音頻處理器
接口: 主機接口,I²C,SAI,SPI
時鐘速率: 200MHz
非易失內(nèi)存: 外部
芯片上RAM: 744kB
電壓 - 輸入/輸出: 3.30V
電壓 - 核心: 1.00V
工作溫度: 0°C ~ 70°C
安裝類型: 表面貼裝
封裝/外殼: 144-LQFP
供應商設備封裝: 144-LQFP(20x20)
包裝: 托盤
Symphony DSP56720/DSP56721 Multi-Core Audio Processors, Rev. 5
Freescale Semiconductor
14
Figure 9. Using the On-Chip Oscillator
If the DSP56720/DSP56721 system clock is an externally supplied square wave voltage source, it is connected to EXTAL
(Figure 10). When the external square wave source is connected to EXTAL, the XTAL pin is not used.
Figure 10. External Clock Timing
Table 6 lists the clock operation.
Table 6. Clock Operation
No.
Characteristics
Symbol
Min
Max
Units
1
EXTAL input high 1
(40% to 60% duty cycle)
Crystal oscillator
Square wave input
Eth
16.67
2.5
100
inf
ns
2
EXTAL input low1
(40% to 60% duty cycle)
Crystal oscillator
Square wave input
Etl
16.67
2.5
100
inf
ns
3
EXTAL cycle time
With PLL disabled
With PLL enabled
Etc
5
33.3
inf
500
ns
4
Instruction cycle time
With PLL disabled
With PLL enabled
Tc
5.00
inf
5120
ns
Notes:
1. Measured at 50% of the input transition.
2. The indicated duty cycle is for the specified maximum frequency for which a part is rated. The minimum clock high or low time
required for correct operation, however, remains the same at lower operating frequencies; therefore, when a lower clock
frequency is used, the signal symmetry may vary from the specified duty cycle as long as the minimum high time and low time
requirements are met.
XTAL
EXTAL
Suggested component values:
Fosc = 24.576 MHz
R = 1 M ±10%
C (EXTAL)= 18 pF
Calculations are for a 5 – 30 MHz crystal with the following parameters:
Shunt capacitance (C0) of 10 pF – 12 pF
Series resistance 40 Ohm
C (XTAL) = 18 pF
Drive level of 10
μW
R
XTAL1
C
EXTAL
VIL
VIH
Midpoint
Note:
The midpoint is 0.5 (VIH + VIL).
ETH
ETL
ETC
2
3
1
相關PDF資料
PDF描述
VE-2WZ-CX-F3 CONVERTER MOD DC/DC 2V 30W
TPSC157M006R0250 CAP TANT 150UF 6.3V 20% 2312
VE-2WZ-CW-F1 CONVERTER MOD DC/DC 2V 40W
171-015-213R021 CONN DB15 FEMALE DIP SLD NICKEL
VE-2WY-CY-F1 CONVERTER MOD DC/DC 3.3V 33W
相關代理商/技術參數(shù)
參數(shù)描述
DSPB56720CAG 功能描述:數(shù)字信號處理器和控制器 - DSP, DSC 24-BIT 200MHz RoHS:否 制造商:Microchip Technology 核心:dsPIC 數(shù)據(jù)總線寬度:16 bit 程序存儲器大小:16 KB 數(shù)據(jù) RAM 大小:2 KB 最大時鐘頻率:40 MHz 可編程輸入/輸出端數(shù)量:35 定時器數(shù)量:3 設備每秒兆指令數(shù):50 MIPs 工作電源電壓:3.3 V 最大工作溫度:+ 85 C 封裝 / 箱體:TQFP-44 安裝風格:SMD/SMT
DSPB56721AF 功能描述:數(shù)字信號處理器和控制器 - DSP, DSC DSP56721 RoHS:否 制造商:Microchip Technology 核心:dsPIC 數(shù)據(jù)總線寬度:16 bit 程序存儲器大小:16 KB 數(shù)據(jù) RAM 大小:2 KB 最大時鐘頻率:40 MHz 可編程輸入/輸出端數(shù)量:35 定時器數(shù)量:3 設備每秒兆指令數(shù):50 MIPs 工作電源電壓:3.3 V 最大工作溫度:+ 85 C 封裝 / 箱體:TQFP-44 安裝風格:SMD/SMT
DSPB56721AG 功能描述:數(shù)字信號處理器和控制器 - DSP, DSC DSP56721 RoHS:否 制造商:Microchip Technology 核心:dsPIC 數(shù)據(jù)總線寬度:16 bit 程序存儲器大小:16 KB 數(shù)據(jù) RAM 大小:2 KB 最大時鐘頻率:40 MHz 可編程輸入/輸出端數(shù)量:35 定時器數(shù)量:3 設備每秒兆指令數(shù):50 MIPs 工作電源電壓:3.3 V 最大工作溫度:+ 85 C 封裝 / 箱體:TQFP-44 安裝風格:SMD/SMT
DSPB56721AG 制造商:Freescale Semiconductor 功能描述:Multi-Core Audio Digital Signal Processo
DSPB56721CAF 功能描述:數(shù)字信號處理器和控制器 - DSP, DSC 24-BIT 200MHz RoHS:否 制造商:Microchip Technology 核心:dsPIC 數(shù)據(jù)總線寬度:16 bit 程序存儲器大小:16 KB 數(shù)據(jù) RAM 大小:2 KB 最大時鐘頻率:40 MHz 可編程輸入/輸出端數(shù)量:35 定時器數(shù)量:3 設備每秒兆指令數(shù):50 MIPs 工作電源電壓:3.3 V 最大工作溫度:+ 85 C 封裝 / 箱體:TQFP-44 安裝風格:SMD/SMT