CX-49G-006.000-A0248 AVX Corporation, CX-49G-006.000-A0248 Datasheet - Page 23

• Manufacturer Part Number: CX-49G-006.000-A0248
• Description: Crystals 6KHZ
• Manufacturer: AVX Corporation
• Series: CX49Gr

Specifications of CX-49G-006.000-A0248

• Tolerance: 50 PPM
• Termination Style: SMD/SMT
• Operating Temperature Range: - 10 C to + 70 C
• Dimensions: 4.8 mm W x 12.3 mm L x 4.5 mm H
• Mounting Style: SMD/SMT
• Frequency: 6 KHz
• Frequency Stability: 50 PPM
• Load Capacitance: 12 pF
• Lead Free Status / RoHS Status: Lead free / RoHS Compliant

of the frequency of a single crystal unit measured using a specified load capacity, and that the margin of ±8 to 10 ×10
room temperature deviation of the crystal unit can be reserved.
used for oscillation circuits, hfe and fT are important.
hfe of over 250 and f
(7) Transistor third overtone oscillation circuit
qThe resonance circuit comprised of L
w Use L
To prevent the decrease in the negative resistance, always connect the crystal unit to the base of the transistor. For transistors
Select each circuit constant so that the adjustment ranges of upper and lower frequencies of this circuit are even on the basis
To obtain the large negative resistance with small current consumption, select a transistor for high frequency amplification with
oscillation. Set the resonance frequency to a value higher than the intermediate between fundamental wave frequency and
third overtone frequency.
excited oscillation by L
the overtone oscillation frequency band, there are no other effective means of obtaining adequate oscillation margin except
for preventing the increase of load resonance resistance R
1
, referred to as an elongation coil, to connect the load capacitance of the oscillation circuit in series. R
T
of 1GHz or more.
1
. Since it is difficult in general to design the oscillation circuit having adequate negative resistance in
2
C
1
and C
3
C
is required on the emitter side for preventing fundamental mode crystal
t
R
R
1
2
L
of the crystal unit.
C
C
2
3
R
Vcc
3
C
5
C
0.01µ
4
OUT
Handling Notes
1
prevents self-
-6
of the