CSTCW48M0X51-R0 Murata Electronics North America, CSTCW48M0X51-R0 Datasheet - Page 26

• Manufacturer Part Number: CSTCW48M0X51-R0
• Description: RESONATOR 48.0MHZ CERAMIC
• Manufacturer: Murata Electronics North America
• Series: CERALOCK®, CSTCWr
• Type: Ceramicr

Specifications of CSTCW48M0X51-R0

• Frequency: 48MHz
• Features: Built in Capacitor
• Frequency Stability: ±0.2%
• Frequency Tolerance: ±0.5%
• Impedance: 50 Ohm
• Capacitance: 6pF
• Operating Temperature: -20°C ~ 80°C
• Mounting Type: Surface Mount
• Package / Case: 3-SMD, Non-Standard
• Size / Dimension: 0.098" L x 0.079" W (2.50mm x 2.00mm)
• Height: 0.055" (1.40mm)
• Lead Free Status / RoHS Status: Lead free / RoHS Compliant
• Other names: 490-1206-2; CSTCW4800MX01-T

5
Note
• This PDF catalog is downloaded from the website of Murata Manufacturing co., ltd. Therefore, it’s specifications are subject to change or our products in it may be discontinued without advance notice. Please check with our
• This PDF catalog has only typical specifications because there is no space for detailed specifications. Therefore, please approve our product specifications or transact the approval sheet for product specifications before ordering.
sales representatives or product engineers before ordering.
Oscillation rise time means the time when oscillation
develops from a transient area to a steady state
condition, at the time the power of the IC is activated.
With a CERALOCK
reach 90% of the oscillation level under steady state
conditions as shown in Fig. 5-3.
Rise time is primarily a function of the oscillation circuit
design. Generally, smaller loading capacitance, higher
frequency of ceramic resonator, and lower mechanical Q
of ceramic resonator cause a faster rise time. The effect
of load capacitance becomes more apparent as the
capacitance of the resonator decreases.
Fig. 5-4 shows how the rise time increases as the load
capacitance of the resonator increases. Also, Fig. 5-4
shows how the rise time varies with supply voltage.
It is noteworthy that the rise time of the ceramic
resistor is one or two decades faster than a quartz
crystal.
Fig. 5-5 shows comparison of rise time between the two.
24
5
3. Characteristics of Oscillation Rise Time
Characteristics of CERALOCK
Fig. 5-3 Definition of Rise Time
0.9ⅹVp-p
0V
®
, this is defined as the time to
t=0
ON
Rise Time
Time
Vp-p
V
DD
®
Oscillation Circuit
Fig. 5-4 Examples of Characteristics of Oscillation Rise Time
1.00
0.50
1.00
0.50
0
0
Fig. 5-5 Comparison of the Rise Time of
0
( IC: TC74HCU04(TOSHIBA),
CERALOCK
a Ceramic Resonator vs. a Quartz Crystal
IC : TC74HCU04AP(TOSHIBA)
V
↑ 2.0V/div.
→0.1msec./div.
DD
2
Supply Voltage Characteristics
=+5V, C
®
C
: CSACW33M8X51–B0)
L
(C
1
L1
L1
= C
=C
L2
L2
=6pF
) Characteristics
4
10
6
CRYSTAL
(33.868MHz)
CSACW33M8X51–B0
V
C
DD
L
(pF)
V
DD
= +5V
(V)
100
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P17E.pdf
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