參數(shù)資料
型號(hào): ADSP2186
廠商: Analog Devices, Inc.
元件分類: 數(shù)字信號(hào)處理
英文描述: DSP Microcomputer
中文描述: DSP微機(jī)
文件頁數(shù): 17/32頁
文件大小: 293K
代理商: ADSP2186
ADSP-2186
REV. 0
–17–
TIMNGPARAMETERS
Parameter
Min
Max
Unit
Clock Signals and Reset
Timing Requirements
:
t
CK I
t
CK IL
t
CK IH
CLK IN Period
CLK IN Width Low
CLK IN Width High
60 [50]
20
20
150
ns
ns
ns
Switching Characteristics:
t
CK L
t
CK H
t
CK OH
CLK OUT Width Low
CLK OUT Width High
CLK IN High to CLK OUT High
0.5 t
CK
– 7
0.5 t
CK
– 7
0
ns
ns
ns
20
Control Signals
Timing Requirements
:
t
RSP
t
MS
t
MH
RESET
Width Low
1
Mode Setup Before
RESET
High
Mode Setup After
RESET
High
5 t
CK
2
5
ns
ns
ns
NOT ES
Parameters displayed inside brackets [ ] represent preliminary 40 MHz specifications.
1
Applies after power-up sequence is complete. Internal phase lock loop requires no more than 2000 CLK IN cycles assuming stable CLK IN (not including crystal
oscillator start-up time).
t
CKOH
t
CKH
t
CKI
t
CKIH
t
CKIL
t
CKL
t
MH
t
MS
CLKIN
CLKOUT
PF(2:0)
*
RESET
*
PF2 IS MODE C, PF1 IS MODE B, PF0 IS MODE A
Figure 14. Clock Signals
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