參數資料
型號: S-35190A
元件分類: 時鐘/數據恢復及定時提取
英文描述: REAL TIME CLOCK, PDSO8
封裝: 3 X 4.40 MM, 0.65 MM PITCH, TSSOP-8
文件頁數: 1/5頁
文件大?。?/td> 180K
代理商: S-35190A
RTC
Real Time Clock Oscillation Circuit
[S-35190A/S-35390A] 8pin TSSOP(3.0x4.4) 0.65mm pitch
Measurement conditions : 5.0V , 3.0V
Model
:VT-200
Frequency
:Fo=32.768kHz
Frequency tolerance
:dF/Fo= +/-20x10-6
Load capacitance
:CL=6.0pF
Equivalent series resistance :R1=50kohm max
Max. Drive level
:DL=1x10-6W max
Recommended drive level
:DL=0.1x10-6W typ
FEATURES
DIMENSIONS(VT-200)
1.Compact tubular package
2.Photolithographic process
3.Excellent shock resistance and
environmental characteristics.
4.Real time clocks, Timers,
Portable applications
Remark) Ix : current through crystal
MODEL:VT-200 6.0pF with S35190A/S35390A at 25°C
The above mentioned value is only for your reference. The value is for the arbitrary samples and
does not guarantee the product's characteristics. Please review and check above parameters at customer's end.
Seiko Instruments USA Inc.
2990,West Lomita Blvd., Torrance, CA 90505, U.S.A
Telephone :+1 310-517-7771 Facsimile :+1 310-517-7792
Email :crystals@siu-la.com
Seiko Instruments GmbH
Siemensstrasse 9,D-63263 Neu-lsenburg,Germany
Telephone :+49-6102-297-0 Facsimile :+49-6102-297-320
Email :info@seiko-instruments.de
Seiko Instruments Inc.
1-8,Nakase,Mihama-ku,Chiba-shi,Chiba 261-8507,Japan
Facsimile :+81-43-211-8030 E-mail :component@sii.co.jp
Seiko Instruments Inc.
Phone:+81-43-211-1207(Direct)
-133
Vdd=3.0V
0.8
0.0
Vdd=5.0V
14.3
0.30
Built-in
4
31-Jan-07
Key specifications
Vdd=5.0V
Vdd=3.0V
Matching Accuracy : df / f ( x10
-6 )
Voltage Fluctuation : +/-df / V ( x10
-6 )
Circuit characteristics ( at 25°C )
Remarks
Optimal capacity in response to CL
( CL = Cd // Cg + stray capacitance )
Current control resistance : Rd ( k ohm )
Capacitance at drain : Cd ( pF )
Capacitance at gate : Cg ( pF )
Vdd=3.0V
Built-in
4
Built-in
0.0
0.8
0.01
717
Drive Level : DL ( x10
-6W )
Negative resistance : | - RL | ( kohm )
Oscillation allowance : M ( times )
Oscillation start up time : Ts ( sec )
Temperature characteristics of circuit
Variation : df / T ( x10
-6 )
Variation : df / T ( x10
-6 )
-137
at -40°C
at +85°C
-137
-133
14.3
0.28
5 times larger than R1MAX
Judgemental standard of oscillation stability
Vdd=5.0V
Time to reach 90% of output level
Typ.Tp=25°C ( K = -3.5×10
-8 / °C2 )
Control drive level & secure phase margin
Remarks
Frequency offset volume at specified Vdd
Vdd +/-10% ( Standard operating voltage range )
Remarks
Typ.Tp=25°C ( K = -3.5×10
-8 / °C2 )
DL=Ix
2 Re < 1x10-6W,Re=R1( 1 + Co / CL )2
Unit:mm
(0.
45
)
6.0max.
0.2
2.
0
5.0min.
CL=
CgCd / (Cg+Cd)+Cs
Vss
RTC-IC
Xin
Xout
Vdd=1.3 to 5.5V
Ix
32.768kHz
Rd
Cd
Cg
Rf=100Mohm typ
Rd=100kohm typ
Cd=8pF typ
Rf
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