Crystal Clock Oscillator 2795 Series

Crystal Clock Oscillator
2795 Series
Two Frequencies-switching Type
n Model name
2795V 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 This crystal oscillator supports 1 to 125 MHz with the PLL technology used.
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.
Pb
Free
Absolute maximum rating
Power supply voltage (VDD) -0.5 to +7.0V DC
Storage temperature range -55 to +125°C
n Specifications
Model
Item
2795V
Output level
Frequency range *1
(MHz)
Operating temperature range *2
(℃)
Frequency stability
(×10–6)
Power supply voltage
(V)
Consumption current (+5.0V,25℃) max (mA)
VOL max/VOH min
(V)
Tr max/Tf max
(ns)
Duty Cycle min. to max.
(%)
Load (CL) max
TTL GATE
Oscillation start time max
(ms)
Number for specifying an order
TTL
1 ≤ F ≤ 40
40 < F ≤ 70
70 < F ≤ 125
–10 to +70
±50
+5.0±0.5
25
40
0.4V/2.4V
IOL=8mA
50
IOH=–8mA
2.5/2.5 (0.4V to 2.4V)
40 to 60 (at 1.4V)
5
10
NSA5334B
*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 <TTL>
mm
Tf
3.2±0.2
Tr
VOH
2.4V
1.4V
5.0±0.2
1.0 ±0.2
0.4V
1.2±0.1
#2
Reference land pattern
T
Duty Cycle = t/T×100 [%]
#3
#4
1.2
1.0±0.1
2.2
C0.5
0V
t
1.4
1.2±0.1
#1
VOL
2.54
2.54±0.1
Cby = 0.01μF
PAD
Connection
#1
Freq. Select
#2
GND
#3
OUTPUT
#4
VDD
n Two Frequencies-switching Function Table
#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: 2795V, frequency: 16.9 and 22.5
MHz, frequency stability: ±50 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: 2795V – 16.900000M – 22.500000M – NSA5334B
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/).
cc34_080304_2795V_50_e1