Crystal Clock Oscillator

Crystal Clock Oscillator
2735N Series
■ Model name
2735N Overall frequency tolerance of ±30 x 10–6.
■ Application
● For notebook PC, mobile information terminal, and PC card
■ Features
● TTL IC is directly driven.
● Product height : 1.0 mm. This is equivalent to height of slim IC
package(TSSOP, TVSOP).
● Supports a frequency range of 2.5 to 70 MHz.
● Current consumption during standby is 15 µA or less. (Max. 40MHz)
● Automatic mounting by taping and IR reflow (lead-free) are possible.
Absolute maximum rating
Supply voltage (VCC) -0.5 to +7.0 V DC
Storage temperature range -55 to +125 °C
■ Specifications
Model
Item
Output level
2735N
TTL
(MHz)
Nominal frequency range *1
20 ≤ F ≤ 40
(°C)
Operating temperature range *2
Overall frequency tolerance
Supply voltage [VCC]
During operation
Current consumption
(+5 V, 25 °C) max
2.5 ≤ F < 20
During standby
40 < F < 60
(×10–6)
±30
(V)
+5±10%
(mA)
Max. 15
(A)
Max. 25
Max. 40
Max. 15μ
VOL max/VOH min
(V)
0.4 V /2.4 V
(ns)
5/5 (0.1 V to 2.4 V)
40 to 60 (at 1.4 V)
Symmetry min. to max.
(%)
(pF)
Start-up time max
(ms)
Max. 45
Max. 25m
Tr max/Tf max
Load (CL) max
60 ≤ F ≤ 70
–10 to +60
5
4
Standby function
10
Available (Three-state)
Number for specifying an order
NSA6295C
The values of Current Consumption, Tr/Tf, symmetry show the standard values at CL=15pF.
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.
■ Dimensions
■ Output Waveform <TTL>
mm
3.2±0.2
#1
#2
GND
#3
OUTPUT
1.4VDD
1/2V
#4
VCC
0.4VDD
0.1V
#4 2.54±0.1
#3
VOL
0V
T
Symmetry = t/T × 100 [%]
Land pattern (Typical)
1.4
#4
■ Standby Function
#3
#1 Input
2.2
1.0±0.1
C0.5
VOH
2.4VDD
0.9V
1.2
1.2±0.1
#2
STAND-BY
t
0.25±0.1
#1
1.2±0.1
1.0 ±0.2
0.36±0.1
5.0±0.2
Tf
Tr
Terminal land connections
#1
Cby=0.01μF
2.54
Level H (3.5 V ≤ VIH ≤ VCC)
or OPEN is selected.
L level ( VIL ≤ 0.8 V ) is selected.
#2
#3 Output
Oscillation output ON
High impedance
Mount an approx. 0.01 μF bypass capacitor between VCC and GND
(close to the product)
■ How to Specify an Order
When ordering our products, specify them with an “Ordering Code” that consists of the following: Example : When ordering a product with model name: 2735N, frequency: 40 MHz,
overall frequency tolerance: ±30 x 10–6, and supply voltage: 5 V
Model name – Frequency (up to 9 digits) M – Number for specifying an order
Ordering Code: 2725N – 40.000000M – NSA6295C
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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