Crystal Clock Oscillator
2725 Series
■
Model name
2725Q Overall frequency tolerance of ±100 x 10
–6
.
Power-saving Type
■
Application
● For compact mobile information equipment, such as DVC, DSC, notebook PC,
and PDA
■
Features
● A power saving-type crystal oscillator, capable of being driven by a 2.5 V.
power supply.
● 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
Model
(MHz) 2.5 ≤ F < 5
(°C)
(×10
–6
)
(V)
During operation
During standby
(mA)
(μA)
(V)
(ns)
(%)
(pF)
(ms)
4
2
3
4
5 ≤ F < 10
2725Q
CMOS
10 ≤ F < 20 20 ≤ F < 40 40 ≤ F < 75 75 ≤ F ≤ 125
–20 to +70
±100
+2.5±0.1
6
10
0.1 V
DD
/0.9 V
DD
5/5 (0.1V
DD
to 0.9V
DD
)
40 to 60 (at 1/2 V
DD
)
15
10
Available (tristate)
NSA6296A
*2: If you require a product with an operating temperature range not given above, please contact us.
Operating temperature range
*2
Overall frequency tolerance
Supply voltage [V
DD
]
Current consumption
(+2.5 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
16
24
0.2 V
DD
/0.8 V
DD
4/4
(0.2 V
DD
to 0.8 V
DD
)
*1: If you require a product with a frequency not given above, please contact us.
■
Dimensions
mm
3.2±0.2
■
Output Waveform <CMOS>
Terminal land connections
#1
#2
#3
0.36±0.1
Tr
Tf
V
OH
STAND-BY
GND
OUTPUT
V
DD
0.9V
DD
or 0.8V
DD
1/2V
DD
5.0±0.2
#4
0
.1
V
DD
or 0.2V
DD
V
OL
t
T
0V
1.0 ±0.2
0.25±0.1
Land pattern (Typical)
#4
2.2
1.4
#3
1.2
#1
C0.5
1.0±0.1
1.2±0.1
1.2±0.1
#2
Symmetry = t/T × 100 [%]
■
Standby Function
#1 Input
#3 Output
Oscillation output ON
High impedance
Level H (0.7 V
DD
≤ V
IH
≤ V
DD
)
or OPEN is selected.
Level L (V
IL
≤ 0.3 V
DD
) is selected.
#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)
When ordering our products, specify them with an “Ordering Code” that consists of the following: Example :When ordering a product with model name: 2725Q, frequency: 125 MHz,
overall frequency tolerance: ±100 x 10
–6
, and supply voltage: 2.5 V
Model name – Frequency (up to 9 digits) M – Number for specifying an order
Ordering Code: 2725Q – 125.000000M – NSA6296A
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/).
■
How to Specify an Order
- 78 -
12A_0906_2725Q_100_e
嵌入式系统
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