2795V [NDK]
Crystal Clock Oscillator Two Frequencies-switching Type; 水晶时钟振荡器两种频率切换类型型号: | 2795V |
厂家: | NIHON DEMPA KOGYO |
描述: | Crystal Clock Oscillator Two Frequencies-switching Type |
文件: | 总1页 (文件大小:90K) |
中文: | 中文翻译 | 下载: | 下载PDF数据表文档文件 |
Crystal Clock Oscillator
Two Frequencies-switching Type
2795 Series
Model name
n
–6
2795V Frequency stability of ±±11 ꢀ ±1 .
Application
n
l
For compact mobile information equipment, such as PDA and notebook PC
Features
n
l
With the adoption of frequency-writing technology, even the tightest
delivery deadline can be met.
Pb
Free
l
Two frequencies: switch from one to the other according to the input
voltage (high or low) of PAD #±.
l
l
l
PLL technology allows this crystal oscillator to support ± to ±25 MHz.
Automatic mounting by taping and IR reflow (lead-free) are possible.
Compact and light with the following dimensions and weight of 5.1 ꢀ 3.2 mm,
±.1 mm, and 1.16 g.
Absolute maꢀimum rating
DD
Power supply voltage (V ) -1.5 to +7.1V DC
Storage temperature range -55 to +±25°C
Specifications
n
Model
2795V
TTL
41 < F ≤ 71
–21 to +71
±±11
+5.1±1.5
41
IOL=8mA IOH=–8mA
Item
Output level
*±
± ≤ F ≤ 41
25
71 < F ≤ ±25
51
Frequency range
(MHz)
(℃)
*2
Operating temperature range
Frequency stability
–6
(×±1 )
Power supply voltage
(V)
Consumption current (+5.1V,25℃) maꢀ (mA)
1.4V/2.4V
VOL maꢀ/VOH min
(V)
(ns)
2.5/2.5 (1.4V to 2.4V)
41 to 61 (at ±.4V)
Tr maꢀ/Tf maꢀ
Duty Cycle min. to maꢀ.
(%)
5
±1
L
Load (C ) maꢀ
TTL GATE
(ms)
Oscillation start time maꢀ
NSA5334A
Number for specifying an order
*±: If you require a product with a frequency not given above, please contact us. *2: If you require a product with an operating temperature range not given above, please contact us.
Dimensions
Output Waveform <TTL>
n
n
mm
Tf
Tr
VOH
2.4V
±.4V
5.1±1.2
1.4V
VOL
1V
t
Reference land pattern
±.4
±.2±1.±
#±
T
#2
C1.5
Duty Cycle = t/T×±11 [%]
#4
#3
2.54
n Two Frequencies-switching Function Table
2.54±1.±
Cby = 1.1±μF
PAD Connection
#± Input
Level H (+2 V min.)
or OPEN is selected.
#3 Input
F±
#±
#2
#3
#4
Freq. Select
GND
OUTPUT
Level L (+1.8 V maꢀ.) is selected.
F2
DD
V
How to Specify an Order
n
Eꢀample ±: When ordering a product with model name: 2795V, frequency: ±6.9 and 22.5
–6
MHz, frequency stability: ±±11 ꢀ ±1 , and power supply voltage: 5.1 V
When ordering our products, specify them with an “Ordering Code” that consists of the following:
Ordering Code: 2795V – ±6.911111M – 22.511111M – NSA5334A
Frequency
Frequency
Number for
Model name –
M –
M –
(up to 9 digits)
(up to 9 digits)
specifying an order
If you have any queries concerning our standard frequencies and numbers for specifying orders, please contact our sales representatives or visit our homepage (http://www.ndk.com/).
cc33_080304_2795V_100_e1
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