Crystal Clock Oscillator
2795 Series
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Model name
2795W Frequency stability of ±100 x 10
–6
.
Two Frequencies-switching Type
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Application
l
For compact mobile information equipment, such as PDA and notebook PC
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Features
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With the adoption of frequency-writing technology, even the tightest
delivery deadline can be met.
l
Two frequencies: switch from one to the other according to the input
voltage (high or low) of PAD #1.
l
PLL technology allows this crystal oscillator to support 1 to 125 MHz.
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Automatic mounting by taping and IR reflow (lead-free) are possible.
l
Compact and light. Dimensions and weight: 5.0 x 3.2 mm, 1.0 mm, and 0.06 g.
Pb
Free
Absolute maximum rating
Power supply voltage (V
DD
) -0.5 to +7.0 V
Storage temperature range -55 to +125 °C
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Specifications
Item
Model
2795W
C-MOS
40 < F ≤ 70
–20 to +70
±100
+5.0±0.5
25
5/5 (0.1 V
DD
to 0.9 V
DD
)
45 to 55 (at 1/2 V
DD
)
15
10
NSA5333A
40
0.1 V
DD
/0.9 V
DD
3/3 (0.2 V
DD
to 0.8 V
DD
)
40 to 60 (at 1/2 V
DD
)
50
70 < F ≤ 125
Output level
(MHz)
Frequency range
*1
*2
Operating temperature range
(°C)
Frequency stability
(×10
–6
)
Power supply voltage [V
DD
]
(V)
Current consumption (+5.0 V, 25 °C) max (mA)
V
OL
max/V
OH
min
(V)
Tr max/Tf max
(ns)
Duty Cycle min. to max.
(%)
Load (C
L
) max
(pF)
Oscillation start time max
(ms)
Number for specifying an order
*1: If you require a product with a frequency not given above, please contact us.
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Dimensions
3.2±0.2
5.0±0.2
1.0 ±0.2
#1
C0.5
1.0±0.1
1.2±0.1
1.20
1.00
1.20
En
PAD
#1
#2
#3
#4
Standby
GND
OUTPUT
V
DD
1.2±0.1
#2
1 ≤ F ≤ 40
d
mm
Connection
Reference land pattern
1.40 1.14 1.40
of
0.9V
DD
or 0.8V
DD
1/2V
DD
*2: If you require a product with an operating temperature range not given above, please contact us.
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Output Waveform <C-MOS>
Tr
Tf
V
OH
fe
Li
0.1V
DD
or 0.2V
DD
V
OL
t
T
Duty Cycle = t/T × 100 [%]
0V
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Two Frequencies-switching Function Table
#1 Input
Level H (+2 V min.)
or OPEN is selected.
Level L (+0.8 V max.) is selected.
#3 Input
F1
#4
2.54±0.1
#3
Mount an approx. 0.01 μF bypass capacitor between V
DD
and GND (close to the product)
F2
Example 1: When ordering a product with model name: 2795W, frequency: 16.9 and 22.5
MHz, frequency stability: ±100 x 10
–6
, and power supply voltage: 5.0 V
When ordering our products, specify them with an “Ordering Code” that consists of the following:
Ordering Code: 2795W – 16.900000M – 22.500000M – NSA5333A
Number for
Model name – Frequency M – Frequency 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/).
cc63_080926_2795W_100_e
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How to Specify an Order
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