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Datasheet: J1956M (EPCOS)

TV IF filter with Nyquist slope and sound shelf

 

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EPCOS
SAW Components
Data Sheet J 1956 M
2
Dec 03, 1999
SAW Components
J 1956 M
38,90 MHz
IF Filter for Intercarrier Applications
Data Sheet
Plastic package SIP5K
Standard
q
I
Features
q
TV IF filter with Nyquist slope and sound shelf
q
Constant group delay
q
Suitable for CENELEC EN 55020
Terminals
q
Tinned CuFe alloy
Pin configuration
1
Input
2
Input - ground
3
Chip carrier - ground
4
Output
5
Output
Type
Ordering code
Marking and package
according to
Packing
according to
J 1956 M
B39389-J1956-M100
C61157-A1-A15
F61074-V8067-Z000
Maximum ratings
Operable temperature range
T
A
25/+65
C
Storage temperature range
T
stg
40/+85
C
DC voltage
V
DC
12
V
between any terminals
AC voltage
V
pp
10
V
between any terminals
Dimensions in mm, approx. weight 1,0 g
3
Dec 03, 1999
SAW Components
J 1956 M
38,90 MHz
IF Filter for Intercarrier Applications
Data Sheet
Characteristics
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
13,3
14,8
16,3
dB
following data
Relative attenuation
rel
Picture carrier
38,90 MHz
5,3
6,3
7,3
dB
Color carrier
34,47 MHz
1,5
2,5
3,5
dB
Sound carrier
32,90 MHz
19,3
20,3
21,3
dB
Adjacent picture carrier
30,90 MHz
48,0
61,0
--
dB
30,40 MHz
48,0
62,0
--
dB
31,40 MHz
44,0
65,0
--
dB
Adjacent sound carrier
40,90 MHz
46,0
56,0
--
dB
40,35 MHz
42,0
49,0
--
dB
Lower sidelobe
25,00 ... 30,90 MHz
46,0
52,0
--
dB
Upper sidelobe
40,90 ... 45,00 MHz
42,0
49,0
--
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
1,1
s ... 1,0
s before main pulse
50,0
56,0
--
dB
(test pulse 250 ns,
carrier frequency 37,40 MHz)
Group delay ripple (p-p)
40
ns
Impedance at 37,40 MHz
Input:
Z
IN
=
R
IN
||
C
IN
--
1,4 ||14,6
--
k
|| pF
Output:
Z
OUT
=
R
OUT
||
C
OUT
--
2,4 || 3,6
--
k
|| pF
Temperature coefficient of frequency
TC
f
--
72
--
ppm/K
4
Dec 03, 1999
SAW Components
J 1956 M
38,90 MHz
IF Filter for Intercarrier Applications
Data Sheet
Frequency response
5
Dec 03, 1999
SAW Components
J 1956 M
38,90 MHz
IF Filter for Intercarrier Applications
Data Sheet
Frequency response
Time domain response
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