ꢀ ꢁ ꢂ ꢃ ꢄꢅ ꢆ ꢇ ꢈꢉ ꢈꢀꢊ ꢀꢁ ꢂꢃ ꢄ ꢅ ꢆꢇ ꢈ ꢉ ꢋꢀꢊ ꢀꢁ ꢂꢃ ꢄ ꢅ ꢆꢇ ꢈ ꢉ ꢇ ꢀ
ꢌ ꢍ ꢎꢏ ꢐꢑꢒ ꢓꢍ ꢔ ꢀ ꢐꢍ ꢕ ꢍ ꢀꢖꢗ ꢂ ꢍ ꢕꢔ ꢖꢗ ꢒ ꢘꢓ ꢆꢏ ꢂꢂꢓ ꢘꢂ
SPRS226H − NOVEMBER 2003 − REVISED AUGUST 2005
INPUT AND OUTPUT CLOCKS
†‡§
timing requirements for CLKIN for -600 devices
(see Figure 16)
−600
PLL MODE x20
PLL MODE x12
PLL MODE x6
x1 (BYPASS)
NO.
UNIT
MIN
33.3
0.4C
0.4C
MAX
MIN
20
MAX
MIN
13.3
0.4C
0.4C
MAX
MIN
0
MAX
1
2
3
4
5
t
t
t
t
t
Cycle time, CLKIN
40
23.8
23.8
10
ns
ns
ns
ns
ns
c(CLKIN)
w(CLKINH)
w(CLKINL)
t(CLKIN)
Pulse duration, CLKIN high
Pulse duration, CLKIN low
Transition time, CLKIN
Period jitter, CLKIN
0.4C
0.4C
0.45C
0.45C
5
5
5
1
0.02C
0.02C
0.02C
0.02C
J(CLKIN)
†
‡
§
The reference points for the rise and fall transitions are measured at V MAX and V MIN.
For more details on the PLL multiplier factors (x6, x12, x20), see the Clock PLL section of this data sheet.
C = CLKIN cycle time in ns. For example, when CLKIN frequency is 50 MHz, use C = 20 ns.
IL
IH
†‡§
timing requirements for CLKIN for -720 devices
(see Figure 16)
−720
PLL MODE x20
PLL MODE x12
PLL MODE x6
x1 (BYPASS)
NO.
UNIT
MIN
27.7
0.4C
0.4C
MAX
MIN
16.6
0.4C
0.4C
MAX
MIN
13.3
0.4C
0.4C
MAX
MIN
0
MAX
1
2
3
4
5
t
t
t
t
t
Cycle time, CLKIN
40
23.8
23.8
10
ns
ns
ns
ns
ns
c(CLKIN)
w(CLKINH)
w(CLKINL)
t(CLKIN)
Pulse duration, CLKIN high
Pulse duration, CLKIN low
Transition time, CLKIN
Period jitter, CLKIN
0.45C
0.45C
5
5
5
1
0.02C
0.02C
0.02C
0.02C
J(CLKIN)
†
‡
§
The reference points for the rise and fall transitions are measured at V MAX and V MIN.
For more details on the PLL multiplier factors (x6, x12, x20), see the Clock PLL section of this data sheet.
C = CLKIN cycle time in ns. For example, when CLKIN frequency is 50 MHz, use C = 20 ns.
IL
IH
80
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TI [ TEXAS INSTRUMENTS ]
