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參數(shù)資料
| 型號： | CY2040WAF |
| 英文描述： | Clocks and Buffers |
| 中文描述： | 時鐘和緩沖器 |
| 文件頁數(shù)： | 3/10頁 |
| 文件大?。?/td> | 94K |
| 代理商： | CY2040WAF |
CY2040WAF
PRELIMINARY
Document #: 38-07234 Rev. *A
Page 3 of 10
32-kHz and 10
–
30 MHz Crystal Oscillator Tuning Circuits
32-kHz Oscillator Circuit
Symbol
R
F
Feedback Resistor (32-kHz oscillator)
Capacitors have ±20% Tolerance
C
G0
Gate Capacitor (32-kHz oscillator)
C
D0
Drain Capacitor (32-kHz oscillator)
C
G0,
C
D0
Tuning Cap (32-kHz oscillator)
C
G1,
C
D1
Tuning Cap (32-kHz oscillator)
C
G2,
C
D2
Tuning Cap (32-kHz oscillator)
C
G3,
C
D3
Tuning Cap (32-kHz oscillator)
C
G4,
C
D4
Tuning Cap (32-kHz oscillator)
C
G5,
C
D5
Tuning Cap (32-kHz oscillator)
C
G6,
C
D6
Tuning Cap (32-kHz oscillator)
Description
Condition
Min.
15
Typ.
30
Max.
100
Unit
M
Vbatt = 2.5V to 3.6V, 32-kHz oscillator
Include stray capacitance
Include stray capacitance
8
8
pF
pF
pF
pF
pF
pF
pF
pF
pF
0.094
0.187
0.375
0.75
1.5
3
6
10
–
30 MHz Oscillator Circuit
Symbol
R
F
Feedback Resistor
(10
–
30 MHz oscillator)
Capacitors have ±20% Tolerance
C
G0
Gate capacitor (10
–
30 MHz oscillator)
C
D0
Drain Capacitor (10
–
30 MHz oscillator) Include stray capacitance
C
G0
C
D0
C
G1
C
D1
C
G2
C
D2
C
G3
C
D3
C
G4
C
D4
C
G5
C
D5
C
G6
C
D6
Description
Condition
Min.
0.32
0.61
Typ.
0.62
1.35
Ma.x
1.45
6.1
Unit
M
M
Vdd
= 4.5V to 5.5V
Vdd
= 2.7V to 3.6V, 10
–
30 MHz oscillator
Include stray capacitance
13
9
0.27
N/A
0.52
N/A
1.00
N/A
0.7
0.45
1.4
0.85
2.6
1.7
5.0
3.3
pF
pF
pF
pF
pF
pF
pF
pF
pF
pF
pF
pF
pF
pF
pF
pF
Tuning Cap (10
–
30 MHz oscillator)
Tuning Cap (10
–
30 MHz oscillator)
Tuning Cap (10
–
30 MHz oscillator)
Tuning Cap (10
–
30 MHz oscillator)
Tuning Cap (10
–
30 MHz oscillator)
Tuning Cap (10
–
30 MHz oscillator)
Tuning Cap (10
–
30 MHz oscillator)
CD = EPROM BIT
T = TRANSISTOR
C = LOAD CAPACITOR
CD6
Cg6
CD5
Cg5
CD4
Cg4
CD3
Cg3
CD2
Cg2
CD1
Cg1
CD0
Cg0
CD0
Cd0
CD1
Cd1
CD2
Cd2
CD3
Cd3
External Crystal
CgoCdo
Rf
CD4
Cd4
CD5
Cd5
CD6
Cd6
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