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参数资料
| 型号： | VDUNCA-77.760MHZ |
| 厂商： | VECTRON INTERNATIONAL |
| 元件分类： | XO, clock |
| 英文描述： | VCXO, CLOCK, 77.76 MHz, CMOS/TTL OUTPUT |
| 封装： | CERAMIC, LCC-6 |
| 文件页数： | 2/2页 |
| 文件大小： | 62K |
| 代理商： | VDUNCA-77.760MHZ |
Vectron International 267 Lowell Road, Hudson, NH 03051 Tel: 1-88-VECTRON-1 Web: www.vectron.com
11
1
Vc
Control Voltage.
22
TTL/CMOS1 TTL logic low for CMOS optimized symmetry
TTL logic high or no connection for TTL optimized
symmetry.
3
GND
Case/circuit ground.
4
Output
Output waveform.
52
Tri-state
TTL logic low disables output.
TTL logic high or no connection enables output
waveform.
6VDD
Supply Voltage, 5 V ±10%, or 3.3V ±10%
1. This silicon oscillator is fabricated in CMOS technology and its output waveform will swing between ground and VDD for all but the highest fre-
quency applications. To account for the difference in switching thresholds between TTL logic (1.40 V) and CMOS logic (VDD/2), the TTL/CMOS lead
modifies the “on time” of the oscillator for maximum symmetry about the TTL or CMOS logic threshold. TTL logic low provides waveform symmetry
for CMOS. TTL logic high or no connection provides waveform symmetry for TTL. At output frequencies less than 12 MHz, this option is not provided
as the waveform transition times are small compared to the period. Hence, for fo <12 MHz this pin should be grounded for electrical isolation.
2. Alternate Pin Configuration for Tri-state Control on Pin 2 and TTL/CMOS on pin 5. Alternate Configuration is indicated by last letter of part code “D”
for TriState Pin 2 and TTL/CMOS on pin 5.
Outline Drawing
Pad Layout
1.024
1.544
2.000
2.048
3.088
3.580
3.686
4.000
4.032
4.096
4.434
5.000
6.144
6.176
6.312
6.400
8.000
8.192
8.448
10.000
12.000
12.288
12.352
13.000
14.318
15.360
15.440
16.000
16.384
18.432
19.44
20.000
20.480
24.000
24.576
24.704
27.000
30.000
32.000
32.768
34.368
35.328
38.880
40.000
40.960
44.736
50.000
51.840
52.000
65.536
77.760
Ordering Information
Voltage Controlled Crystal Oscillators (VCXO’s)
Pin Out Information
Frequency
L
A
35.328
MHz
Absolute Pull Range
G = +50 ppm
N = +80 ppm
H = +100 ppm
V
G
U
Supply Voltage
C = 5.0V +10%
D = 3.3V +10%
Input
U = VCXO
L= Linear VCXO
Symmetry (TTL/CMOS)
A= 50 +5% Tri-state on Pin #5
B= 50 +10% Tri-state on Pin #5
Pin #
Symbol
Name/Function
Standard Frequencies* (MHz)
Temperature Range
C =
0oC to +70oC
L = -40oC to +85oC
D
Package Size
V = 6 Pin ceramic LCC
1. Not all combinations are possible. Other specifications may be available upon request.
2. Frequency: In MHz with decimal point, in Hz if no decimal is present.
3. 10% linearity available at certain frequencies. Consult factory.
*Other frequencies available upon request.
VCXO
8798_AA's Vectron
05/30/02
3:11 PM
Page 11
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相关代理商/技术参数 |
参数描述 |
|---|---|
| VDUNCB-44.736 | 制造商:VECTRON 制造商全称:Vectron International, Inc 功能描述:Voltage Controlled Crystal Oscillator |
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| VDUNLD-44.736 | 制造商:VECTRON 制造商全称:Vectron International, Inc 功能描述:Voltage Controlled Crystal Oscillator |
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