2795Y Datasheet, PDF (1/1 Pages) NIHON DEMPA KOGYO – Crystal Clock Oscillator Two Frequencies-switching Type

Crystal Clock Oscillator
2795 Series Two Frequencies-switching Type
n Model name
2795Y Frequency stability of ±50 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 with the following dimensions and weight of 5.0 x 3.2 mm,
1.0 mm, and 0.06 g.
n Specifications
Pb
Free
Absolute maximum rating
Power supply voltage (VDD) -0.5 to +7.0V DC
Storage temperature range -55 to +125°C
Item
Model
2795Y
Output level
Frequency range ^*1
(MHz)
Operating temperature range ^*2
(℃)
Frequency stability
(×10^–6)
Power supply voltage
(V)
Consumption current (+3.3V,25℃) 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
1 ≤ F ≤ 40
15
C-MOS
40 < F ≤ 70
–10 to +70
±50
+3.3±0.3
22
0.1VDD/0.9VDD IOL=4mA
5/5 (0.1VDD to 0.9VDD)
45 to 55 (at 1/2VDD)
15
10
NSA5332B
IOH=–4mA
70 < F ≤ 125
30
3/3 (0.2VDD to 0.8VDD)
40 to 60 (at 1/2VDD)
*1: 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.
n Dimensions
n Output Waveform <C-MOS>
mm
5.0±0.2
#1
C0.5
1.2±0.1
#2
Reference land pattern
1.4
Tr
0.9VDD
or 0.8VDD
1/2VDD
0.1VDD
or 0.2VDD ^VOL
Tf
VOH
0V
t
T
Duty Cycle = t/T×100 [%]
#4
#3
2.54±0.1
2.54
Cby = 0.01μF
PAD
#1
#2
#3
#4
Connection
Freq. Select
GND
OUTPUT
VDD
n Two Frequencies-switching Function Table
#1 Input
Level H (0.7 VDD min.)
or OPEN is selected.
#3 Input
F1
Level L (0.2 VDD max.) is selected.
F2
n How to Specify an Order
Example 1: When ordering a product with model name: 2795Y, frequency: 16.9 and 22.5
When ordering our products, specify them with an “Ordering Code” that consists of the following: ^{MHz, frequency stability: ±50 x 10–6, and power supply voltage: 3.3 V}
Model name –
Frequency
(up to 9 digits)
M–
Frequency
(up to 9 digits)
M–
Number for
specifying an order
Ordering Code: 2795Y – 16.900000M – 22.500000M – NSA5332B
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/).
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