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参数资料
| 型号： | QEN79-AHRFREQ1AY25SB |
| 厂商： | RAKON LIMITED |
| 元件分类： | XO, clock |
| 英文描述： | CRYSTAL OSCILLATOR, CLOCK, 30 MHz - 80 MHz, CMOS/TTL OUTPUT |
| 文件页数： | 1/1页 |
| 文件大小： | 25K |
| 代理商： | QEN79-AHRFREQ1AY25SB |
CRYSTAL OSCILLATOR - XO
QEN 79 & QEN 92-AH/BH
3-13
Vol. 2
SALES OFFICES: VISIT OUR WEB SITE AT
http://www.temex.net
Description
The QEN 79 series is a true hybrid construction with chip and wire
bonding to a ceramic substrate for high reliability and small size.
The crystal resonator is mounted on a 3 points supporting pad
bonded to the ceramic substrate. They are designed to operate at
extended temperature up to -55° C to +125° C and available
to 100 MHz. This series is designed to withstand tough mechanical
environment and class B screening if applicable. It’s presented in
a J-lead version and both supply voltage (5 V and 3.3 V). It offers an
enable/disable option.
An alternative is available in a leadless version, the QEN 92, which has the same design but offers
a tristate function in standard. Consult your local sales office to know available solutions.
QEN 79/92-AH
QEN 79/92-BH
Tristate
Option
5 V supply voltage
3.3 V supply voltage
on pin 1
Tristate on pin 1
Package 92
Package 79
±25 ppm ±50 ppm ±25 ppm ±50 ppm
1.5 MHz - 30 MHz
Yes
30 MHz - 80 MHz
Yes
80 MHz - 100 MHz
Yes
Frequency range
1.75 MHz to 100 MHz
Applications
Cellular base stations
PCS base stations
Synthesizers
Test equipment
Portable instrumentation and avionics
Features
Temperature ranges:
up to -55° C to +125° C
Frequency stability:
±15 to ±100 ppm
Supply voltage:
+5 V or +3.3 V
Current consumption:
@ (5 V): 25 to 40 mA
@ (3.3 V): 12 to 20 mA
Load:
@ (5 V): 50pF/10TTL-gates
@ (3.3 V): 15 pF
Option duty cycle:
50/50 ± 5 %
Option: enable/disable on pin 1
Package 79
Tristate output:
Package 92
Option:
screening B
Ageing (45°C/1st year):
≤ ± 5 ppm
INDUSTRIAL & MILITARY SMD XO
Minimum ordering information requirement
(See Table 1 for available combinations)
(See page 3-17 and 3-18 for package drawing)
Example: QEN 79 - AHR 50 MHz DT50 SB/ T
Package
79 = J-leads
92 = leadless
*
Supply voltage
AH = 5 V
BH = 3.3 V
Option
R = 50/50 ± 5%
I = tristate
*
Temperature range
DT = -40° C ~ +85° C
AY = -55° C ~ +125° C
∞
Frequency stability
± 25 ppm
∞
± 50 ppm
± 100 ppm
Screening option: SB
Tinned pins: T
Note:
1. Options with the same marker may not be combined with each
other.
2. Frequency stability inclusive of 25° C calibration, temperature,
Vcc and load change.
/
Table 1:
Other temperature ranges
and stabilities available
Attention: should pin 1 not be
used, please always tie to Vcc
“0” on pin 1 = High Z on pin 3
“1” on pin 1 = enable on pin 3
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