SAW Components
IF Filter for Video Applications
Data Sheet
Standard
s
s
s
s
K 3958 M
33,90 MHz and 38,90 MHz
Plastic package
SIP5K
B/G
D/K
I
L/L’
Features
s
TV IF filter with Nyquist slopes at 33.90 MHz and
38.90 MHz
s
Constant group delay
Terminals
s
Tinned CuFe alloy
Dimensions in mm, approx. weight 1,0 g
Pin configuration
1
2
3
4
5
Input
Input - ground
Chip - carrier ground
Output
Output
Type
K 3958 M
Ordering code
B38389-K3958-M100
Marking and package
according to
C61157-A1-A15
Packing
according to
F61064-V8067-Z000
Maximum ratings
Operable temperature range
T
A
Storage temperature range
T
stg
DC voltage
AC voltage
–25/+65
–40/+85
5
10
˚C
˚C
V
V
between any terminals
between any terminals
V
DC
V
pp
2
Mar
31,
2006
SAW Components
IF Filter for Video Applications
Data Sheet
Characteristics
Reference temperature:
Terminating source impedance:
Terminating load impedance:
K 3958 M
33,90 MHz and 38,90 MHz
T
A
= 25 (45) ˚C
Z
S
= 50
Ω
Z
L
= 2 kΩ || 3 pF
min.
typ.
15,0
max.
16,5
dB
Insertion attenuation
Reference level for the
following data
Relative attenuation
Picture carrier
Color carrier
Sound carrier
37,45 (37,40) MHz
α
13,5
α
rel
38,95 (38,90) MHz
33,95 (33,90) MHz
34,52 (34,47) MHz
32,45 (32,40) MHz
32,95 (32,90) MHz
33,45 (33,40) MHz
30,95 (30,90) MHz
31,95 (31,90) MHz
40,45 (40,40) MHz
40,20 (40,15) MHz
40,95 (40,90) MHz
41,45 (41,40) MHz
5,0
4,8
-0,4
—
—
16,0
47,0
47,0
46,0
42,0
43,0
45,0
42,0
38,0
6,0
5,8
0,6
57,0
58,0
18,2
60,0
55,0
60,0
52,0
51,0
60,0
48,0
45,0
7,0
6,8
1,6
—
—
—
—
—
—
—
—
—
—
—
dB
dB
dB
dB
dB
dB
dB
dB
dB
dB
dB
dB
dB
dB
Adjacent picture carrier
Adjacent sound carrier
Lower sidelobe
25,05 ... 31,95 (25,00 ... 31,90) MHz
Upper sidelobe
40,45 ... 45,05 (40,40 ... 45,00) MHz
Reflected wave signal suppression
1,2
µs
... 6,0
µs
after main pulse
(test pulse 250 ns, carrier frequency 37,45 MHz)
Feedthrough signal suppression
1,0
µs
... 0,9
µs
before main pulse
(test pulse 250 ns, carrier frequency 37,45 MHz)
Group delay ripple
(p-p, aperture 50 kHz)
∆τ
33,95 ... 38,95 (33,90 ... 38,90) MHz
Impedance
at 37,45 MHz
Input:
Z
IN
=
R
IN
||
C
IN
Output:
Z
OUT
=
R
OUT
||
C
OUT
Temperature coefficient of frequency
3
42,0
52,0
—
dB
50,0
56,0
—
dB
—
40
—
ns
—
—
2,2 ||10,8
1,9 || 3,9
–72
—
—
—
kΩ || pF
kΩ || pF
ppm/K
TC
f
—
Mar 31, 2006