CX5032SB12000F0FLJZZ AVX Corporation, CX5032SB12000F0FLJZZ Datasheet - Page 20

• Manufacturer Part Number: CX5032SB12000F0FLJZZ
• Description: CRYSTAL, SM, CX-96F, 12MHZ
• Manufacturer: AVX Corporation
• Series: CX5032SBr

Specifications of CX5032SB12000F0FLJZZ

• Operating Temperature Range: -30°C To +85°C
• Crystal Mounting Type: SMD
• Crystal Case Type: 5
• Frequency: 12MHz
• Frequency Tolerance: ± 10ppm
• Load Capacitance: 10pF
• Frequency Stability: ± 10ppm
• Lead Free Status / RoHS Status: Lead free / RoHS Compliant

(4) Items calculated by equivalent constants and load capacitance
2. Oscillation circuit and crystal unit
(1) Equivalent circuit of oscillation circuit and oscillation conditions
Crystal unit
The equation
as
The equation
larger as
A simplified equivalent circuit is shown below.

C
f
f
f
R
C
Q : Quality factor
s
p
L
: Series resonance frequency
: Capacitance ratio
: Parallel resonance frequency
L
L
L
: Load resonance frequency
: Load resistance
: Load capacitance
becomes smaller.
C
Handling Notes
L
becomes smaller.
f
R
L
L
shows that
shows the change in impedance with a load capacitance connected. The impedance of crystal unit becomes
Oscillation circuit
– R
C
L
f
L
varies as load capacitance
Crystal unit
R
X
L
L

R
C
Q 
f
f
f
p
s
L
L

L





f
2
2
C
C
2 f
R
s
C
2
1
0
1
1
2 (C
R
1
L1 C1
L
1
1
s
1
(f
1
C
C
L
C
C
L
0
0
0
C
/f
C
1
C
0
L
1
1
C

s
Oscillation circuit
C
)1
1
L
2
1
)
2 f
L
- 53 -
1
connected to the crystal unit changes and that
C
– R
s
C
1
0
L
C
= – X
1
R
C
1
C
– R : Negative resistance
X
– X
R
L
L
L
C
: Load capacitance
: Reactance of crystal unit
: Reactance of oscillation circuit
: Load resonance resistance
f
L
becomes larger