3
Jul 03, 2000
SAW Components
K 7252 M
38,90 MHz
IF Filter for Intercarrier / Multistandard Applications
Data Sheet
Characteristics in B/G, D/K mode (switching pin 2 connected to ground)
Reference temperature:
T
A
= 25 C
Terminating source impedance:
Z
S
= 50
Terminating load impedance:
Z
L
= 2 k
|| 3 pF
min.
typ.
max.
Insertion attenuation
Reference level for the
37,40 MHz
15,4
16,9
18,4
dB
following data
Relative attenuation
rel
Picture carrier
38,90 MHz
4,6
5,6
6,6
dB
Color carrier
34,47 MHz
0,2
1,2
2,2
dB
Sound carrier
32,40 MHz
17,7
19,2
20,7
dB
33,40 MHz
16,0
17,5
--
dB
Adjacent picture carrier
30,90 MHz
46,0
58,0
--
dB
31,90 MHz
38,0
50,0
--
dB
Adjacent sound carrier
40,40 MHz
41,0
50,0
--
dB
41,40 MHz
40,0
46,0
--
dB
Lower sidelobe
25,00 ... 30,90 MHz
36,0
42,0
--
dB
Upper sidelobe
40,40 ... 45,00 MHz
33,0
39,0
--
dB
Reflected wave signal suppression
1,3
s ... 6,0
s after main pulse
42,0
50,0
--
dB
(test pulse 250 ns,
carrier frequency 37,40 MHz)
Feedthrough signal suppression
1,2
s ... 1,1
s before main pulse
--
56,0
--
dB
(test pulse 250 ns,
carrier frequency 37,40 MHz)
Group delay predistortion
(reference frequency 38,90 MHz)
36,80 MHz
--
40
--
ns
34,47 MHz
--
50
--
ns
Impedance at 37,40 MHz
Input:
Z
IN
=
R
IN
||
C
IN
--
1,0 ||17,3
--
k
|| pF
Output:
Z
OUT
=
R
OUT
||
C
OUT
--
2,7 || 3,4
--
k
|| pF
Temperature coefficient of frequency
TC
f
--
72
--
ppm/K
4
Jul 03, 2000
SAW Components
K 7252 M
38,90 MHz
IF Filter for Intercarrier / Multistandard Applications
Data Sheet
Characteristics in M/N mode (switching pin 2 connected to pin 1)
Reference temperature:
T
A
= 25 C
Terminating source impedance:
Z
S
= 50
Terminating load impedance:
Z
L
= 2 k
|| 3 pF
min.
typ.
max.
Insertion attenuation
Reference level for the
37,40 MHz
15,5
17,0
18,5
dB
following data
Relative attenuation
rel
Picture carrier
38,90 MHz
4,9
5,9
6,9
dB
Color carrier
35,32 MHz
0,8
1,8
2,8
dB
Sound carrier
34,40 MHz
17,0
18,5
20,0
dB
Adjacent picture carrier
32,90 MHz
40,0
52,0
--
dB
Adjacent sound carrier
40,40 MHz
41,0
49,0
--
dB
Lower sidelobe
25,00 ..... 32,90 MHz
36,0
42,0
--
dB
Upper sidelobe
40,40 ..... 45,00 MHz
31,0
37,0
--
dB
Reflected wave signal suppression
1,2
s ... 6,0
s after main pulse
42,0
52,0
--
dB
(test pulse 250 ns,
carrier frequency 37,40 MHz)
Feedthrough signal suppression
1,2
s ... 1,1
s before main pulse
--
50,0
--
dB
(test pulse 250 ns,
carrier frequency 37,40 MHz)
Group delay ripple (p-p)
--
50
--
ns
Impedance at 37,40 MHz
Input:
Z
IN
=
R
IN
||
C
IN
--
1,1 ||21,0
--
k
|| pF
Output:
Z
OUT
=
R
OUT
||
C
OUT
--
2,7 || 3,4
--
k
|| pF
Temperature coefficient of frequency
TC
f
--
72
--
ppm/K
5
Jul 03, 2000
SAW Components
K 7252 M
38,90 MHz
IF Filter for Intercarrier / Multistandard Applications
Data Sheet
Frequency response B/G, D/K mode
6
Jul 03, 2000
SAW Components
K 7252 M
38,90 MHz
IF Filter for Intercarrier / Multistandard Applications
Data Sheet
Frequency response B/G, D/K mode
Time domain response B/G, D/K mode
7
Jul 03, 2000
SAW Components
K 7252 M
38,90 MHz
IF Filter for Intercarrier / Multistandard Applications
Data Sheet
Frequency response M/N mode
8
Jul 03, 2000
SAW Components
K 7252 M
38,90 MHz
IF Filter for Intercarrier / Multistandard Applications
Data Sheet
Frequency response M/N mode
Time domain response M/N mode
9
Jul 03, 2000
SAW Components
K 7252 M
38,90 MHz
IF Filter for Intercarrier / Multistandard Applications
Data Sheet
Published by EPCOS AG
Surface Acoustic Wave Components Division, OFW E UE
P.O. Box 80 17 09, D-81617 Mnchen
EPCOS AG 1999. All Rights Reserved.
As far as patents or other rights of third parties are concerned, liability is only assumed for compo-
nents per se, not for applications, processes and circuits implemented within components or
assemblies.
The information describes the type of component and shall not be considered as assured
characteristics.
Terms of delivery and rights to change design reserved.
For questions on technology, prices and delivery please contact the sales offices of EPCOS AG or
the international representatives.
Due to technical requirements components may contain dangerous substances. For information on
the type in question please also contact one of our sales offices.
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