NDK 45NE15BC

Crystal Filter
45-90 MHz-Series MCF
Type: with a Built-in Transformer
n Features
Because this MCF has a built-in transformer, it is possible to match an input/output
circuit with various impedance values.
l Compact and light.
l Stable temperature characteristics.
l This product can be manufactured according to your requested terminating
impedance value.
l Because it has already been completely adjusted, no adjustment is needed before
use.
l It can be manufactured with a wide frequency band.
Caution
• Because it has a non-enclosed structure, it cannot be washed.
n Specifications
45NE7.5BB
45NE15BC
70NE7.5B
70NE15B
90NE7.5BB
90NE15BC
Nominal frequency
45MH z
45MH z
70MH z
70MH z
90MH z
90MH z
Channel spacing
12.5k Hz
25k Hz
12.5k Hz
25k Hz
12.5k Hz
25k Hz
3 dB passband width
±3.75k Hz
±7.5k Hz
±3.75k Hz
±7.5k Hz
±3.75k Hz
±7.5k Hz
±12.5 kHz max.
±25 kHz max.
±12.5 kHz max.
±25 kHz max.
±12.5 kHz max.
±25 kHz max.
at 25 dB
at 30 dB
at 25 dB
at 30 dB
at 25 dB
at 30 dB
30 dB min.
20 dB min.
90NE7.5BB-90MFN15-844
90NE15BC-90MFN15-845
Model
Stop bandwidth
Ripple
2 dB max.
Insertion loss (insertion attenuation)
6 dB max.
Guaranteed attenuation
70 dB min. at ±910 kHz
30 dB min.
Spurious characteristics
20 dB min.
20 dB min.
30 dB min.
Terminating impedance
50Ω//0pF
Operating temperature range
–20 to +70°C
Package type
D-168
45NE7.5BB-45MFN15-840
Code for placing an order
45NE15BC-45MFN15-841
n Dimensions
70NE7.5B-70MFN15-842
70NE15B-70MFN15-843
n Characteristics
D-168
Channel spacing 12.5kHz
mm
10.5max
ATT.(dB)
10
20
30
(A)
40
50
60
4±1
70
80
4min
1.5±0.5
(A)
(B)
–25
–1.0
–20
–0.8
–15
–0.6
–10
–0.4
–5
–0.2
(B)
5
0.2
0
10
0.4
15
0.6
20
0.8
25 (kHz)
1.0 (MHz)
4–φ0.8max
IN
OUT
11.6±0.5
10
20
30
10.5max
4.6 3.5
GND
ATT.(dB)
Channel spacing 25kHz
(A)
40
50
60
GND
70
18.5max
(B)
80
90
(A)
(B)
–50
–1.0
–40
–0.8
–30
–0.6
–20
–0.4
–10
–0.2
0
10
0.2
20
0.4
30
0.6
40
0.8
50 (kHz)
1.0 (MHz)
cf20_071102_45-90MCF_e1