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參數(shù)資料
| 型號： | S1950A-77.76(T) |
| 廠商： | PERICOM SEMICONDUCTOR CORP |
| 元件分類： | XO, clock |
| 英文描述： | CRYSTAL OSCILLATOR, CLOCK, 32 MHz - 125 MHz, 77.76 MHz, ACMOS OUTPUT |
| 文件頁數(shù)： | 2/6頁 |
| 文件大小： | 670K |
| 代理商： | S1950A-77.76(T) |
2
DS 187 Rev G | 08/11/05
S1903 and S1950 Series
3.3V and 5V ACMOS/TTL, High Frequency
Crystal Clock Oscillator (XO)
Pericom Semiconductor Corporation 1-800-435-2336 http://www.pericom.com/saronix
All specifications are subject to change without notice.
Electrical Performance
Parameter
Min.
Typ.
Units
Notes
Output frequency (S1903)
32
125
MHz
As specified
Output frequency (S1950)
80
125
MHz
As specified
Supply voltage (S1903)
+2.97
+3.3
+3.63
V
Supply voltage (S1950)
+4.75
+5.0
+5.25
V
Supply current (S1903)
35
mA
Supply current (S1950)
35
50
mA
Frequency stability
±20 to
±50
ppM
See Note 1 below
Operating temperature
-40
+85
°C
As specified
Output logic 0, VOL (S1903)
20%
VDD
V
Output logic 0, VOL (S1950)
10%
VDD
V
Output logic 1, VOH
80%
VDD
V
Output load (S1903)
95
AC (ACMOS)
Output load (S1950)
50
AC (ACMOS)
Duty cycle (S1903)
45
55
%
-40 to +85°C measured 50%VDD
Duty cycle (S1950)
40
60
%
-40 to +85°C measured 50%VDD or 1.5V
Duty cycle (S1950)
45
55
%
0 to +70°C measured 50%VDD
Rise and fall time
2
ns
measured 20/80% of waveform
Jitter, total
80
ps
pk-pk
up to 72 MHz
Jitter, total
120
ps
pk-pk
>72 MHz 0 to 70°C
Jitter, total
150
ps
pk-pk
>72 MHz -40 to +85°C
Notes:
1. As specified. Stability includes all combinations of operating temperature, load changes, rated input (supply) voltage changes, initial calibration
tolerance (25°C), aging (1 year at 25°C average effective ambient temperature), shock and vibration.
Output Enable / Disable Function
Parameter
Min.
Typ.
Max.
Units
Notes
Input Voltage (pin 1), Output
Enable
2.2
V
or open
Input voltage (pin 1), Output
Disable
0.8
V
Output is Hi-Z
Internal pullup resistance
50
kΩ
Output disable delay
100
ns
Output enable delay
100
ns
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