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參數(shù)資料
| 型號： | Z9972AI |
| 英文描述： | SCR Thyristor; SCR Type:Standard Gate; Peak Repetitive Off-State Voltage, Vdrm:800V; On-State RMS Current, IT(rms):40A; Peak Non Repetitive Surge Current, Itsm:520A; Gate Trigger Current Max, Igt:40uA |
| 中文描述： | 雜項時鐘發(fā)生器| QFP封裝| 52PIN |塑料 |
| 文件頁數(shù)： | 7/9頁 |
| 文件大?。?/td> | 87K |
| 代理商： | Z9972AI |
Z9972
Document #: 38-07088 Rev. *D
Page 7 of 9
AC Parameters
V
DD
= 2.9V to 3.6V, V
DDC
= 3.3V ±10%, T
A
=
–
40
°
C to +85
°
C
[7]
Parameters
Description
Tr/Tf
TCLK Input Rise/Fall
Fref
Reference Input Frequency
Fxtal
Crystal Oscillator Frequency
FrefDC
Reference Input Duty Cycle
Fvco
PLL VCO Lock Range
Tlock
Maximum PLL lock Time
Tr/Tf
Output Clocks Rise/Fall Time
[9]
Fout
Maximum Output Frequency
Conditions
Min.
Typ.
Max.
3.0
Note 8
25
75
480
10
1.2
125
120
80
60
Unit
ns
MHz
MHz
%
MHz
ms
ns
MHz
Note 8
10
25
200
see
Table 3
0.8V to 2.0V
Q (
÷
2)
Q (
÷
4)
Q (
÷
6)
Q (
÷
8)
0.15
FoutDC
tpZL, tpZH
tpLZ, tpHZ
TCCJ
TSKEW
Tpd
Output Duty Cycle
[9]
Output Enable Time
[9]
(all outputs)
Output Disable Time
[9]
(all outputs)
Cycle to Cycle Jitter
[9]
(peak to peak)
Any Output to Any Output Skew
[9, 10]
Propagation Delay
[10, 11]
TCYCLE/2
–
750
2
2
TCYCLE/2 + 750
10
8
ps
ns
ns
ps
ps
ps
±100
250
130
70
350
530
470
TCLK0
TCLK1
QFB = (
÷
8)
–
270
–
330
Table 3. Crystal Oscillator Frequency
Parameter
Description
Conditions
Min.
Typ.
Max.
Units
T
C
Frequency Tolerance
Note 12
(T
A
–
10 to +60
°
C)
[12]
±100
PPM
T
S
Frequency Temperature
Stability
±100
PPM
T
A
Aging
(first 3 years @ 25
°
C)
[12]
The crystal
’
s rated load
[12]
5
PPM/Yr.
C
L
Load Capacitance
20
pF
R
ESR
Effective Series Resistance
(ESR)
Note 13
40
80
Ohms
Notes:
7.
8.
9.
10. 50
transmission line terminated into V
.
11.
Tpd is specified for a 50 MHz input reference. Tpd does not include jitter.
12. For best performance and accurate frequencies from this device, It is recommended but not mandatory that the chosen crystal meet or exceed these
specifications.
13. Larger values may cause this device to exhibit oscillator startup problems.
Parameters are guaranteed by design and characterization. Not 100% tested in production.
Maximum and minimum input reference is limited by VC0 lock range.
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