TOKEN ZTT16.93MXTR

TOKEN
ZTT MHZ Ceramic Resonators
CERAMIC
RESONATORS
1.79 ~ 60.00 MHz
Token Ceramic Resonator (ZTT)
is compatible to Murata CST Compatible
Preview
Ceramic resonators provide an attractive alternative
to quartz crystals for oscillation frequency
stabilization in many applications. when compared
to quartz devices, ceramic resonators’ easily mass
production, low cost, mechanical ruggedness, and
small size often outweigh the reduced precision to
which frequencies can be controlled.
Additionally, ceramic resonators are better equipped
to handle fluctuations in external circuit or power
supply voltage due to their use of mechanical resonance
and providing stable oscillation without adjustment. Further, these characteristics offer for a much faster rise
times and are independent of drive level considerations.
Token ceramic resonator ZTT series is used as standard clocks for microprocessors in various electronic devices.
Token produces miniaturized, high-performance ZTT resonator series using its superior fabrication, assembly
and packaging technologies. The ZTT device offers frequency range from 1.79 MHz to 60.00 MHz with an
initial frequency tolerance of ± 0.5%, stability tolerance ± 0.3% at -20°C ~ +80°C, and aging tolerance ± 0.3%.
The ZTT resonator features built-in capacitance with 3 lead terminals to eliminates any need for external loading
capacitors and reduces component count. These devices conform to the RoHS directive.
Application of ceramic resonators specific designs also available including tighter tolerances and frequency
adjusted to requirements.
Please contact Token sales for more information.
Benefit Features :
-
Built-in load capacitance reduced parts cost and mounting cost.
Faster start-up time as compared to quartz crystals.
Excellent temperature stability (±0.3%).
High density mounting.
Simplified circuit.
Low cost.
Version 2010
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rfq token.com.tw
01 of 03
TOKEN
ZTT MHZ Ceramic Resonators
Dimensions
10.0max
10.0max *
5.0max
0.5±0.1
0.3±0.1


0.25±0.1

5.5±0.5
7.5max
4.19
5.0±1.0
0.5±0.1
2.5±0.3
3.0±1.0
4.0max
3.58

2.5±0.3
5.5±0.5
10.0max

 Input
 Ground
 Output
Φ0.48±0.05
2.5±0.3

ZTTLS/ZTTWS

2.5±0.3
3.5±0.5

2.5±0.3
* MG: 8.0max
MT: 10.0max
MX: 13.01~60.00MHz,10.0max
12.00~13.00MHz,12.0max
5.0±1.0
ZTT
16.93MX

2.5±0.3
ZTTRS
Technical Characteristics
Part
Numbe
Frequency
Range (MHz)
Frequency Accuracy
(at 25°C) (%)
ZTT***MG
ZTTWS***MG
ZTTLS***MG
ZTTRS***MG
ZTT***MT
ZTT***MX
1.79 ~ 6.00
1.79 ~ 6.00
3.00 ~ 8.00
3.00 ~ 10.00
6.00 ~ 13.00
12.00 ~ 60.00
±0.5
±0.5
±0.5
±0.5
±0.5
±0.5
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Stability in
Temperature
(-20°C ~ +80°C) (%)
±0.3
±0.3
±0.3
±0.3
±0.3
±0.3
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Operating
Temperature
(°C)
-20 ~ +80
-20 ~ +80
-20 ~ +80
-20 ~ +80
-20 ~ +80
-20 ~ +80
Aging For
Ten Years
(%)
±0.3
±0.3
±0.3
±0.3
±0.3
±0.3
Version 2010
TOKEN
ZTT MHZ Ceramic Resonators
Test Circuit for MOS IC
Loading Capacitor (C1 & C2)
The stability of the oscillation circuit is mainly
determined by the C1 & C2 values. If the load
capacitance is too small, unstable oscillation
will occur because of oscillation waveform
distortion. If too high, a stop in oscillation can
be expected. When comparing the same IC,
oscillation circuits with lower frequencies
require higher capacitance.
VDD
IC
IC
1MΩ

X

Output
IC (MG,MT):1/6TC4069UBP×2
( MX ):1/6TC74HCU04×2
X: Ceramic Resonator
VDD: +5V

Feedback Resistor (R = 1MΩ):
A Feedback Resistor is used to determine the oscillation circuit bias. The feedback resistance will contribute to instability if it is too large by reducing feedback. Conversely, if it is too small, increases in current
will be realized thereby reducing gain. Recent developments in IC design allows for the integration of the
feedback resistor in many cases.
Damping Resistor (Rd optional):
Abnormal harmonic oscillation can be suppressed using a dampening resistor. The dampening resistor and
load capacitors work together as a low-pass filter to reduce gain in the MHz range of oscillation.
Bias resistor (Rb optional):
A Bias Resistor can be utilized in the Ceramic Resonator Oscillation Circuit to change the bias point when
a reduction in IC gain is required, or to suppress unstable oscillation. This may be especially considered
when a 3 stage buffered IC, or TTL IC, is used.
Token Engineers can help with the circuit design if needed.
(ZTT) Resonator Optimum - IC Evaluations
Tolerance is determined by the design of the resonator. However stability and correlation is determined by
the IC evaluation. The microcontroller is evaluated with the ceramic resonators to determine the best possible circuit conditions to achieve stability and stable oscillation.
In addition, frequency correlation is measured to meet the tight initial frequency tolerance required. For the
tight tolerance resonators the IC evaluation must be completed on the final circuit board layout. The final
circuit boards provide the most accurate measurement of the frequency correlation.
This measurement will account for the effects of stray capacitance on the oscillation frequency. Once the
How to Order
ZTT16.93MX
P


 Part Number
 Package
Code
P
TR
Package
Bulk
Taping Reel
Back to 1st Page - Ceramic Resonators - ZTT
Version 2010
http://www.token.com.tw/
rfq token.com.tw
03 of 03