21.4MHz and 45MHz
MONOLITHIC CRYSTAL FILTERS
ACF21U and ACF45U Series
7.8 x 3.2 x 8.0 mm
FEATURES:
• Excellent attenuation bandwidth.
• Compact design.
APPLICATIONS:
• Mobile communication systems.
• Cellular and cordless phones.
• Pagers.
• Radios.
MCF 21.4MHz FUNDAMENTAL SERIES
PASSBAND
STOPBAND
ABRACON
PART NO.
RIPPLE LOSS TERMINATING PACKAGE
POLE
d B
kHz
d B
kHz
d B kHz
d B
d B IMPEDANCE*
CONF.
8 Series
ACF21U 8A
ACF21U 8B
ACF21U 8C
ACF21U 8D
ACF21U 8E
12 Series
C
HANNEL
S
PACING
:
12.5kHz
2
4
3
3
3
3
6
± 3.75 20 ±18.0
± 3.75 40 ±14.0
0.5
1.0
2.0
2.0
1.5 850 // 6
2.5 850 // 5
3.0 850 // 5
4.0 850 // 5
UM-1.3x1
UM-1.3x2
S1, M1
6
± 3.75 45 ±8.75 65 ±12.5
± 3.75 65 ±8.75 90 ±12.5
8
S2, M2
30 mA max. for F< 24 MHz 70 mA max. for F< 80 MHz
45 mA max. for F< 50 MHz 80 mA max. for F> 80 MHz
HANNEL PACING: 20.0kHz
10
± 3.75 75 ±8.75 90 ±10.5
2.0
5.0 850 // 5
S3, M3
C
S
UM-1.3 x1
ACF21U 12A
ACF21U 12B
ACF21U 12C
ACF21U 12D
ACF21U 12E
15 Series
ACF21U 15A
ACF21U 15B
ACF21U 15C
ACF21U 15D
ACF21U 15E
30 Series
2
4
3
3
3
3
6
± 6.0
± 6.0
± 6.0
± 6.0
± 6.0
20 ±25.0
40 ±20.0
0.5
1.0
1.5 1200 // 3
2.5 1200 // 2.5 UM-1.3 x2
3.0 1200 // 2.5 S1, M1
4.0 1200 // 2.5 S2, M2
5.0 1200 // 2.5 S3, M3
6
45 ±14.0 65 ±20.0 2.0
65 ±14.0 90 ±20.0 2.0
75 ±14.0 90 ±20.0 2.0
8
10
C
HANNEL SPACING: 25.0kHz
2
4
3
3
3
3
6
± 7.5
± 7.5
± 7.5
± 7.5
± 7.5
18 ±25.0
0.5
1.0
2.0
2.0
2.0
1.5 1500 // 2.5 UM-1.3 x1
2.5 1500 // 2.0 UM-1.3 x2
3.0 1500 // 2.0 S1, M1
4.0 1500 // 2.0 S2, M2
5.0 1500 // 2.0 S3, M3
40 ±25.0
UM-1.3
Package Configuration
Dimensions: Inches (mm)
6
45 ±17.5 65 ±25.0
65 ±17.5 90 ±25.0
75 ±16.0 90 ±18.0
8
10
CHANNEL
SPACING
:
50.0kHz
ACF21U 30A
ACF21U 30B
ACF21U 30C
ACF21U 30D
2
4
6
8
3
3
3
3
± 15.0 15 ±45
± 15.0 40 ±50
± 15.0 45 ±35
± 15.0 68 ±30
0.5
1.0
2.0
2.0
1.5 1500 // 1.0 UM-1.3 x1
2.5 2200 // 0.5 UM-1.3 x2
3.0 2200 // 0.5 S1, M1
4.0 2200 // 0.5 S2, M2
65 ±50.0
80 ±50.0
MCF 45MHz FUNDAMENTAL SERIES
PASSBAND
STOPBAND
kHz d B kHz
ABRACON
PART NO.
RIPPLE LOSS TERMINATING PACKAGE
POLE
d B kHz
d B
d B
d B IMPEDANCE*
CONF.
ACF45U 8A
ACF45U 8B
ACF45U 12A
ACF45U 12B
ACF45U 15A
ACF45U 15B
ACF45U 30A
ACF45U 30B
2
4
2
4
2
4
2
4
3
3
3
3
3
3
3
3
±3.75 10 ±12.5
±3.75 30 ±12.5
65 -910
90 ±910
65 -910
90 ±910
90 -910
90 ±910
65 -910
80 ±910
1.0
1.0
1.0
1.0
1.0
1.0
1.0
1.0
2.0 200//4
UM-1.3x1
4.0 350/6.5//18 UM-1.3x2
Package Configuration: S or M
±6.0
±6.0
15 ±20.0
35 ±20.0
35 ±25.0
35 ±25.0
10 ±50.0
30 ±50.0
2.0 500//5
UM-1.3x1
UM-1.3x2
UM-1.3x1
UM-1.3x2
UM-1.3x1
3.0 500//4//12
3.0 650//3//9
3.0 650//3//9
2.0 1200//0
See page 78 for Package
Configurations and
Dimensions.
±7.5
±7.5
±15.0
±15.0
* Terminating Impedance = (Ω) // (pF)
Operating Temperature: -20°C to +70°C.
3.0 1200//0.7//3.5 UM-1.3x2
ABRACON
NOTE: All specifications and markings subject to change without notice
®
ABRACON IS
29 Journey • Aliso Viejo, CA 92656 • USA
ISO 9001 / QS 9000
CERTIFIED
(949) 448-7070
•
FAX: (949) 448-8484
79
E-MAIL: abinfo
@abracon.com • INTERNET ADDRESS: www.abracon.com
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