Crystal Clock Oscillator
2725 Series
■
Model name
2725T Overall frequency tolerance of ±100 x 10
–6
(Wide Operating Temperature Range Type).
Wide Operating Temperature Range Type
■
Application
● For notebook PC, mobile information terminal, and PC card
■
Features
●
●
●
●
Supports a wide temperature range from –40 to +85 °C.
Automatic mounting by taping and IR reflow (lead-free) are possible.
Lead-free.
Compact and light. Dimensions : 5.0 x 3.2 x 1.0 mm, weight : 0.06 g.
Absolute maximum rating
Supply voltage (V
DD
) -0.5 to +7.0 V
Storage temperature range -55 to +125 °C
■
Specifications
Item
Output level
Nominal frequency range
*1
Operating temperature range
*2
Overall frequency tolerance
Supply voltage [V
DD
]
Current consumption
(+3.3 V, 25 °C) max
V
OL
max/V
OH
min
Tr max/Tf max
Symmetry min. to max.
Load (C
L
) max
Start-up time max
Standby function
Number for specifying an order
*1: If you require a product with a frequency not given above, please contact us.
Model
(MHz)
(°C)
(×10 )
–6
2725T
CMOS
2.5 ≤ F < 20
20 ≤ F < 40
±100
+3.3±0.1
8
15
10
0.1 V
DD
/0.9 V
DD
5/5 (0.1 V
DD
to 0.9 V
DD
)
45 to 55 (at 1/2 V
DD
)
15
4
Available (tristate)
NSA6293D
*2: If you require a product with an operating temperature range not given above, please contact us.
40 ≤ F < 60
60 ≤ F < 75
–40 to +85
(V)
During operation
During standby
(mA)
(μA)
(V)
(ns)
(%)
(pF)
(ms)
22
25
10
■
Dimensions
mm
3.2±0.2
■
Output Waveform <CMOS>
Terminal land connections
#1
#2
#3
0.36±0.1
Tr
0.9V
DD
1/2V
DD
0.1V
DD
V
OL
t
T
Tf
V
OH
STAND-BY
GND
OUTPUT
V
DD
5.0±0.2
#4
1.0 ±0.2
0V
0.25±0.1
Land pattern (Typical)
#4
2.2
1.4
#3
1.2
Symmetry = t/T × 100
[%]
1.2±0.1
#1
C0.5
1.0±0.1
1.2±0.1
#2
■
Standby Function
#1 Input
Level H (0.7 V
DD
≤ V
IH
≤ V
DD
)
or OPEN is selected.
Level L (V
IL
≤ 0.3 V
DD
) is selected.
#3 Output
Oscillation output ON
High impedance
#4 2.54±0.1
#3
Cby=0.01 F
#1
2.54
#2
Mount an approx. 0.01 F bypass capacitor between V
DD
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: 2725T, frequency: 20 MHz,
overall frequency tolerance: ±100 x 10
–6
, and supply voltage: 3.3 V
Model name – Frequency (up to 9 digits) M – Number for specifying an order
Ordering Code: 2725T – 20.000000M – NSA6293D
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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12A_0906_2725T_100_e
嵌入式系统
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