參數(shù)資料
型號(hào): ADSP-21161NYCAZ110
廠商: Analog Devices Inc
文件頁(yè)數(shù): 17/60頁(yè)
文件大?。?/td> 0K
描述: IC DSP CONTROLLER 32BIT 225BGA
標(biāo)準(zhǔn)包裝: 1
系列: SHARC®
類型: 浮點(diǎn)
接口: 主機(jī)接口,連接端口,串行端口
時(shí)鐘速率: 110MHz
非易失內(nèi)存: 外部
芯片上RAM: 128kB
電壓 - 輸入/輸出: 3.30V
電壓 - 核心: 1.80V
工作溫度: -40°C ~ 125°C
安裝類型: 表面貼裝
封裝/外殼: 225-BGA,CSPBGA
供應(yīng)商設(shè)備封裝: 225-CSPBGA(17x17)
包裝: 托盤
Rev. C
|
Page 24 of 60
|
January 2013
Clock Signals
The ADSP-21161N can use an external clock or a crystal. See
CLKIN pin description. The programmer can configure the
ADSP-21161N to use its internal clock generator by connecting
the necessary components to CLKIN and XTAL. Figure 12
shows the component connections used for a crystal operating
in fundamental mode.
Reset
Figure 12. 100 MHz Operation (Fundamental Mode Crystal)
Table 12. Reset
Parameter
Min
Max
Unit
Timing Requirements
tWRST
RESET Pulsewidth Low
1 Applies after the power-up sequence is complete.
4tCK
ns
tSRST
RESET Setup Before CLKIN High2
2 Only required if multiple ADSP-21161Ns must come out of reset synchronous to CLKIN with program counters (PC) equal. Not required for multiple ADSP-21161Ns
communicating over the shared bus (through the external port), because the bus arbitration logic synchronizes itself automatically after reset.
8.5
ns
Figure 13. Reset
CLKIN
XTAL
C2
27pF
C1
27pF
X1
SUGGESTED COMPONENTS FOR 100MHz OPERATION:
ECLIPTEK EC2SM-25.000M (SURFACE MOUNT PACKAGE)
ECLIPTEK EC-25.000M (THROUGH-HOLE PACKAGE)
C1 = 27pF
C2 = 27pF
NOTE: C1 AND C2 ARE SPECIFIC TO CRYSTAL SPECIFIED FOR X1.
CONTACT CRYSTAL MANUFACTURER FOR DETAILS. THIS 25MHz
CRYSTAL GENERATES A 100MHz CCLK AND A 50MHz EP CLOCK
WITH
CLKDBL ENABLED AND A 2:1 PLL MULTIPLY RATIO.
RESET
CLKIN
tWRST
tSRST
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