參數(shù)資料
型號(hào): MPC9229
廠商: Motorola, Inc.
英文描述: 400 MHz Low Voltage PECL Clock Synthesizer
中文描述: 400 MHz低電壓PECL時(shí)鐘合成器
文件頁(yè)數(shù): 5/12頁(yè)
文件大?。?/td> 366K
代理商: MPC9229
MPC9229
TIMING SOLUTIONS
MOTOROLA
Table 6. AC Characteristics
(V
CC
= 3.3V
±
5%, T
A
= 0
°
C to +70
°
C)
a
Symbol
Characteristics
Min
Typ
Max
Unit
Condition
f
XTAL
f
VCO
f
MAX
Crystal interface frequency range
VCO frequency range
b
10
20
MHz
800
1600
MHz
Output Frequency
N = 00 (
÷
1)
N = 01 (
÷
2)
N = 10 (
÷
4)
N = 11 (
÷
8)
200
100
50
25
400
200
100
50
MHz
MHz
MHz
MHz
DC
Output duty cycle
45
50
55
%
t
r
, t
f
Output Rise/Fall Time
Serial interface programming clock frequency
c
0.05
0.3
ns
20% to 80%
f
S_CLOCK
t
P,MIN
t
S
0
10
MHz
Minimum pulse width
(S_LOAD, P_LOAD)
50
ns
Setup Time
S_DATA to S_CLOCK
S_CLOCK to S_LOAD
M, N to P_LOAD
20
20
20
ns
ns
ns
t
S
Hold Time
S_DATA to S_CLOCK
M, N to P_LOAD
20
20
ns
ns
t
JIT(CC)
Cycle--to--cycle jitter
N = 00 (
÷
1)
N = 01 (
÷
2)
N = 10 (
÷
4)
N = 11 (
÷
8)
N = 00 (
÷
1)
N = 01 (
÷
2)
N = 10 (
÷
4)
N = 11 (
÷
8)
90
130
160
190
ps
ps
ps
ps
t
JIT(PER)
Period Jitter
70
120
140
170
ps
ps
ps
ps
t
LOCK
Maximum PLL Lock Time
10
ms
a. AC characteristics apply for parallel output termination of 50
to V
TT.
b. The input frequency f
XTAL
and the PLL feedback divider M must match the VCO frequency range: f
VCO
= f
XTAL
M
÷
4.
c. The frequency of S_CLOCK is limited to 10 MHz in serial programming mode. S_CLOCK can be switched at higher frequencies when used
as test clock in test mode 6. See application section for more details.
F
Freescale Semiconductor, Inc.
For More Information On This Product,
Go to: www.freescale.com
n
.
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