J1956M Datasheet PDF - EPCOS


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J1956M
EPCOS

Part Number J1956M
Description SAW Components
Page 6 Pages

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SAW Components
Data Sheet J 1956 M
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SAW Components
IF Filter for Intercarrier Applications
Data Sheet
Standard
qI
Features
q TV IF filter with Nyquist slope and sound shelf
q Constant group delay
q Suitable for CENELEC EN 55020
J 1956 M
38,90 MHz
Plastic package SIP5K
Terminals
q Tinned CuFe alloy
Dimensions in mm, approx. weight 1,0 g
Pin configuration
1 Input
2 Input - ground
3 Chip carrier - ground
4 Output
5 Output
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Type
Ordering code
J 1956 M B39389-J1956-M100
Marking and package
according to
C61157-A1-A15
Packing
according to
F61074-V8067-Z000
Maximum ratings
Operable temperature range
Storage temperature range
DC voltage
AC voltage
TA
Tstg
VDC
Vpp
–25/+65
–40/+85
12
10
˚C
˚C
V between any terminals
V between any terminals
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SAW Components
IF Filter for Intercarrier Applications
Data Sheet
Characteristics
Reference temperature:
Terminating source impedance:
Terminating load impedance:
TA = 25 ˚C
ZS = 50
ZL = 2 k|| 3 pF
Insertion attenuation
Reference level for the
following data
α
37,40 MHz
min.
13,3
J 1956 M
38,90 MHz
typ. max.
14,8
16,3 dB
Relative attenuation
Picture carrier
αrel
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
Lower sidelobe
40,D3a5taMSHhezet4U.com 42,0 49,0 — dB
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 µs ... 6,0 µs after main pulse
(test pulse 250 ns,
carrier frequency 37,40 MHz)
42,0 52,0
— dB
Feedthrough signal suppression
1,1 µs ... 1,0 µs before main pulse
(test pulse 250 ns,
carrier frequency 37,40 MHz)
50,0 56,0
— dB
Group delay ripple (p-p)
Impedance at 37,40 MHz
Input: ZIN = RIN || CIN
Output: ZOUT = ROUT || COUT
Temperature coefficient of frequency
∆τ
TCf
40 ns
— 1,4 ||14,6 — k|| pF
2,4 || 3,6 — k|| pF
— –72
— ppm/K
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SAW Components
IF Filter for Intercarrier Applications
Data Sheet
Frequency response
J 1956 M
38,90 MHz
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