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DAISHINKU Corporation (President :Sohei Hasegawa)
announces the development of the DSV221S, the world’s
smallest Voltage Controlled Crystal Oscillator (VCXO).
Since one-segment broadcasting had started in 2006,
it has been in high demand and mounted on Mobile communication
equipment, such as mobile phones and PCs, and automobiles.
This equipment has become smaller with a higher
expectation by the industry, as well as the products
made with these. The DSV221S is the world’s smallest
VCXO, its size is 2.5*2.0*0.82 (0.9mm max.). The
oscillator was developed and specially suited for use
in Tuner modules for one-segment broadcasting of mobile
phones as well as other products.
Compared with its conventional 3225 size, the volume
is reduced by 53% (0.0088cc to 0.0041cc), and the area
is reduced by 37% (8.0mm2 to 5.0mm2). The downsizing
makes high density packaging possible.
As for securing the frequency adjustment range, which
is more difficult in downsizing, adopting the newly
developed Oscillating Circuit IC and the crystal resonator
made it possible to expand more than +/-100*10-6 min
(+/-90*10-6 with 3225 size). It also can expand
operating temperature range from -30 deg.C to +80 deg.C
(-10 deg.C to +70 deg.C with 3225 size). The expansion
made it easier to use the oscillator under more extreme
conditions than its conventional model.
The oscillator can operate at +1.8V supply voltage.
The DSV221S provides a very low current consumption
of up to 1.0mA operating at +1.8V supply voltage. The
oscillator is an environmental responsive product which
is lead-free and RoHS compliant.
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- Ultra miniature: 2520size (2.5*2.0mm), height 0.82mm (0.9mm
max.)
- Output Frequency Range: 27 MHz *Eventually expanded in
future
- Supply Voltage: 1.8V/2.8V/3.3V
- Frequency Adjustment Range: +/-100*10-6 min.
- Operating Temperature Range: -30 deg.C to +85 deg.C
- Lead-free and RoHS Compliant
[ Applications ]
Tuner modules for one-segment broadcasting (for mobile phones),
Media Player, PND (Personal Navigation Device),
DSC (Digital Still Camera), DVC (Digital
Video Camera), HDTV (PDP, LC)
[ Mass Production ]
September, 2008
[Sample Price]
800 yen Samples are
available now.
[ Manufacturing Capacity ]
5 hundred thousand/month
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Item
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Legend
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Specification
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Condition
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Output Frequency Range
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fo
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27MHz
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Supply Voltage
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Vdd
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1.8V±5%, 2.8V±5%, 3.3V±5%
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* Choose any one of the
voltage
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Frequency Tolerance
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f_tol
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±40×10-6 max.
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Vdd±5%
T_use
= -30 to +85 deg.C
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Frequency Control Range
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f_cont
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±100×10-6 min.
Positive slope
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Vcont = 0.5 ×Vdd±0.5×Vdd
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Current Comsumption
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Idd
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1.0mA max.
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1.8V, No Load
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1.5mA max.
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2.8V, No Load
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1.8mA max.
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3.3V, No Load
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Wave Form (at CL=15pF)
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Symmetry
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-
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50±5%
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0.5×Vdd Level
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Rise Time
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tr
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10 ns max.
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0.1×Vdd to 0.9×Vdd
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Fall Time
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tf
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10 ns max.
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0.1×Vdd to 0.9×Vdd
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0 Level Output Voltage
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Vol
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0.1×Vdd max.
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1 Level output Voltage
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Voh
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0.9×Vdd min.
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Product
