Download datasheet for 2795W by Nihon Dempa Kogyo Co., Ltd. (NDK)

Download datasheet for 2795W by Nihon Dempa Kogyo Co., Ltd. (NDK)
Crystal Clock Oscillator
2795 Series
Two Frequencies-switching Type
n Model name
2795W Frequency stability of ±100 x 10–6.
n Application
l For compact mobile information equipment, such as PDA and notebook PC
n Features
l 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.
l 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 (VDD) -0.5 to +7.0 V
Storage temperature range -55 to +125 °C
n Specifications
Model
Item
2795W
d
En
Output level
(MHz)
Frequency range *1
(°C)
Operating temperature range *2
(×10–6)
Frequency stability
(V)
Power supply voltage [VDD]
Current consumption (+5.0 V, 25 °C) max (mA)
VOL max/VOH min
(V)
Tr max/Tf max
(ns)
Duty Cycle min. to max.
(%)
Load (CL) max
(pF)
Oscillation start time max
(ms)
Number for specifying an order
C-MOS
1 ≤ F ≤ 40
40 < F ≤ 70
70 < F ≤ 125
–20 to +70
±100
+5.0±0.5
25
40
50
0.1 VDD/0.9 VDD
5/5 (0.1 VDD to 0.9 VDD)
3/3 (0.2 VDD to 0.8 VDD)
40 to 60 (at 1/2 VDD)
45 to 55 (at 1/2 VDD)
15
10
fe
Li
of
NSA5333A
*1: If you require a product with a frequency not given above, please contact us.
n Dimensions
*2: If you require a product with an operating temperature range not given above, please contact us.
n Output Waveform <C-MOS>
mm
Tr
Tf
VOH
3.2±0.2
0.9VDD
or 0.8VDD
1/2VDD
0.1VDD
or 0.2VDD VOL
1.0 ±0.2
5.0±0.2
PAD
Connection
#1
Standby
0V
t
T
#2
GND
#3
OUTPUT
#4
VDD
1.2±0.1
#2
n Two Frequencies-switching Function Table
#4
2.54±0.1
1.20
1.0±0.1
1.00
C0.5
Reference land pattern
1.20
#1
1.2±0.1
Duty Cycle = t/T × 100 [%]
#3
1.40 1.14 1.40
Mount an approx. 0.01 μF bypass capacitor between VDD and GND (close to the product)
#1 Input
#3 Input
Level H (+2 V min.)
or OPEN is selected.
F1
Level L (+0.8 V max.) is selected.
F2
n How to Specify an Order
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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