參數(shù)資料
型號: SM320C6201BGLPW15
廠商: Texas Instruments, Inc.
元件分類: 數(shù)字信號處理
英文描述: DIGITAL SIGNAL PROCESSOR
中文描述: 數(shù)字信號處理器
文件頁數(shù): 31/64頁
文件大?。?/td> 948K
代理商: SM320C6201BGLPW15
SGUS031B
APRIL 2000
REVISED AUGUST 2001
31
POST OFFICE BOX 1443
HOUSTON, TEXAS 77251
1443
INPUT AND OUTPUT CLOCKS
timing requirements for CLKIN (see Figure 9)
C6201B-15
C6201B-20
NO.
CLKMODE
= x4
CLKMODE
= x1
CLKMODE
= x4
CLKMODE
= x1
UNIT
MIN
MAX
MIN
MAX
MIN
MAX
MIN
MAX
1
tc(CLKIN)
tw(CLKINH)
tw(CLKINL)
tt(CLKIN)
Cycle time, CLKIN
26.7
6.67
20
5
ns
2
Pulse duration, CLKIN high
*9.8
*2.7
*8
*2.35
ns
3
Pulse duration, CLKIN low
*9.8
*2.7
*8
*2.35
ns
4
Transition time, CLKIN
*5
*0.6
*5
*0.6
ns
*Not production tested.
CLKIN
1
2
3
4
4
Figure 9. CLKIN Timings
switching characteristics for CLKOUT1
(see Figure 10)
C6201B
NO.
PARAMETER
CLKMODE = x4
MIN
CLKMODE = x1
MIN
UNIT
MAX
MAX
1
tc(CKO1)
tw(CKO1H)
tw(CKO1L)
tt(CKO1)
Cycle time, CLKOUT1
*P
0.7
*P + 0.7
*P
0.7
*P + 0.7
ns
2
Pulse duration, CLKOUT1 high
*(P/2)
0.5
*(P/2 ) + 0.5
*PH
0.5
*PH + 0.5
ns
3
Pulse duration, CLKOUT1 low
*(P/2)
0.5
*(P/2 ) + 0.5
*PL
0.5
*PL + 0.5
ns
4
Transition time, CLKOUT1
*0.6
*0.6
ns
PH is the high period of CLKIN in ns and PL is the low period of CLKIN in ns.
P = 1/CPU clock frequency in nanoseconds (ns).
*Not production tested.
CLKOUT1
1
3
4
4
2
Figure 10. CLKOUT1 Timings
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