DFAS2-LHZ44.736MHZAS3 [CTS]
HCMOS/TTL Output Clock Oscillator, 44.736MHz Nom, ULTRA MINIATURE PACKAGE-4;
| 型号： | DFAS2-LHZ44.736MHZAS3 |
| 厂家： | 
CTS |
| 描述： | HCMOS/TTL Output Clock Oscillator, 44.736MHz Nom, ULTRA MINIATURE PACKAGE-4 |
| 文件： | 总1页 (文件大小：34K) |
| 中文： | 中文翻译 | 下载： | 下载PDF数据表文档文件 |
FREQUENCY CONTROL PRODUCTS
S TR A T U M I I I U L TR A M I N I AT U R E S U R F A C E M O U N T T C X O
D F A S 2 - K H Z ( 5 V ) & L H Z ( 3 . 3 V )
7.2 0.2
FEATURES
5.08
5 to 52 MHz
Stratum III compliant over -40 to 85°C up to
20 MHz
0.9
Sonet Minimum Clock compliant over
-40 to 85°C up to 52 MHz
APPLICATIONS
5.08
Stratum III and SMC
4
1
3
2
Function
E / D
GND
Output
Vcc
DFA S2
PC board footprint
1
2
3
4
1.4
TYPE
DFA S2-KHZ
DFA S2-LHZ
5 to 20 Mhz
20.1 to 52 MHz*
12.8, 16.384, 19.44, 20, 34.368*, 38.88* & 44.736* MHz
Frequency Range
Standard Frequencies
ELECTRICAL SPECIFICATIONS
supply voltage
supply current ( no load)
5 V 5 %
≤ 20 mA
3.3 V 5 %
≤ 10 mA
output load
HCMOS 15 pF or 2 TTL
45/55...55/45 %
≤ 5 ns
HCMOS 15 pF or 2 TTL
45/55...55/45 %
≤ 5 ns
duty cycle @ 50% level
rise/fall times (10 to 90 %)
high/low levels or output amplitude
start-up
≥ 4.5 V/ ≤ 0.5 V
≤ 10 ms @ 4.75 V
high or open = enable, low = high Z
≥ 2.8 V/ ≤ 0.3 V
≤ 10 ms @ 3.15 V
high or open = enable, low = high Z
tri-state control on pin 1
FREQUENCY STABILITY
temperature
range
detailed tolerances [ ppm ]
Holdover
stability
model
code
stability versus:
temperature Vcc 5 %
overall
stability
24 hrs
drift
calibration
@ 25°C
type
ageing
Telcordia GR-1244 CORE Stratum III or ITU-T G.813 option 1
0 to 50°C AS3
0 to 70°C BS3
≤
3
≤
4.6
over
15 years 15 years
all types
≤
0.28
3.5
≤
0.1
over
≤
0.37
≤
0.04
≤
0.8
-20 to 70°C* CS3
-40 to 85°C* ES3
Telcordia GR-253 CORE SMC or ITU-T G.813 option 2
10 20
over over
20 years 20 years
≤
≤
0 to 70°C BSM
all types
≤
≤
0.3
≤
4.6
≤
0.5
≤
1
-40 to 85°C ESM
DEFINITIONS
24 hours drift
24 hours holdover mode
GR-1244-CORE, GR-253-CORE or G.813
Over full temperature range and Vcc 0.5 %
ORDERING CODE
Example
type + option code + frequency + model code
DFA S2-LHZ 19.44 MHz BS3
*All temperature range and stability combinations are not available. Please consult factory for availability
TYPE
DFA S2 SIII
REVISION
04
CHECKED
NE
DATE
08.04.2008
PAGE
XX
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