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參數(shù)資料
| 型號： | S-3531AECA-TB-01 |
| 元件分類： | 時鐘/數(shù)據(jù)恢復及定時提取 |
| 英文描述： | REAL TIME CLOCK, UUC8 |
| 封裝： | DIE-8 |
| 文件頁數(shù)： | 13/29頁 |
| 文件大?。?/td> | 236K |
| 代理商： | S-3531AECA-TB-01 |
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REAL-TIME CLOCK
S-3531A
Seiko Instruments Inc.
19
Order Specification
Adjustment of Oscillating Frequency
1.
Configuration of the oscillating circuit
Since crystal oscillation is sensitive to external noises (clock accuracy is affected), the following
measures are essential for optimizing your oscillating circuit configuration:
(1) S-3531A, crystal oscillator and external capacitor (Cg) are placed as close to each other as
possible.
(2) Make high the insulation resistance between pins and the substrate wiring patterns of XIN and
XOUT.
(3) Do not place any signal or power lines close to the oscillating circuit.
XIN
XOUT
Cg
S-3531A
Cd
Rd
Rf
Crystal oscillator:32.768kHz
CL=6pf
Cg=3 to 35pf
Oscillating circuit internal constant standard values:
Rf=20M
Rd=220K
Cd=12pf
Figure 20 Connection diagram
S-3531AE
-01
-TB
FS
Shipping form:
FS: Package (8-pin SSOP)
CA: Die
Description (fixed)
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