- SAW filters for TV receivers and video recorders (tables 1 and 2).
- SAW filters for cable TV modulators (table 3),
- professional SAW filters (table 4),
- SAW notch filters (table 5),
- SAW delay lines (table 6),
- SAW resonators, PSAW resonators, STW resonators (table7).

ITME offers high quality SAW filters in the frequency range 10÷500 MHz designed according to customers requirements

 
SAW FILTER CHARACTERISTICS :
 
- center frequency *
- fractional badwidth
- insertion loss
- relative out-of-band rejection
- minimum shape factor
- minimum bandpass ripple
- phase response * *
- 10 ÷ 500 MHz,
- 1 ÷ 50 %,
- ³ 2 dB,
- as much as 60 dB,
- 1.05,
- 0.1 dB,
- linear / nonlinear.


NOTES :
* Design of multiple passband filters with various passband shapes is possible.
** Filters can be designed according to phase or group delay specification.


OUR CUSTOMERS ARE ASKED TO SPECIFY:
- desired center frequency
- max. insertion loss,
- source and load impedance,
- package type,
- temperature range of operation,
- max. permitted temperature coefficient of the frequency response,
- expected quantity.

Table 1. SAW filters for TV receivers with differential sound carrier system.

Filter type
Picture carrier [MHz]
Insertion loss [dB]
Sound carrier [MHz]
TV Standard*)
Replacement to
(Siemens-Matsushita)
38,0
20
31,5 / 32,5
D/K-OIRT, B/G-CCIR
OFWK-1950
38,9
20
32,4 / 33,4
D/K-OIRT, B/G-CCIR
OFWK-2950
38,9
19
33,4
B/G-CCIR
OFWG-1968
38,9
18,5
32,4 / 33,4
D/K-OIRT, B/G-CCIR
OFWK-2960
38,9
18,5
32,4 / 33,4
D/K-OIRT, B/G-CCIR
OFWK-2960
38,9
17
32,4 / 33,4
B/G-CCIR
OFWG-1963
38,9
17
33,4
B/G-CCIR
OFWG-1984
39,5
18
33,5
I-CCIR
OFWJ-1951
39,5
16
33,5
I-CCIR
OFWJ-1951

Table 2. SAW filters for TV receivers with quasiparallel sound carrier system.

Filter type
Picture carrier [MHz]
Insertion loss [dB]
Sound carrier [MHz]
TV Standard*)
Replacement to
(Siemens-Matsushita)
38,0
20
31,5 / 32,5
D/K-OIRT, B/G-CCIR
OFWK-3955
38,0
20
31,5
D/K-OIRT, B/G-CCIR
-
38,0
17
31,5 / 32,5
D/K-OIRT, B/G-CCIR
OFWK-3955
38,0
17
31,5 / 32,5
D/K-OIRT, B/G-CCIR
-
38,9
20
32,4 / 33,4
D/K-OIRT, B/G-CCIR
OFWG-3956
38,9
17
33,4
B/G-CCIR
OFWG-3962
38,0
26
31,5 / 32,5
D/K-OIRT, B/G-CCIR
OFWK-9201
-
15,5
31,5 / 32,5
D/K-OIRT, B/G-CCIR
-
-
15,5
31,5 / 32,5
D/K-OIRT, B/G-CCIR
-
38,0
22
31,5 / 32,5
D/K-OIRT, B/G-CCIR
OFWK-9201
-
15,5
32,4 / 33,4
D/K-OIRT, B/G-CCIR
OFWK-9350
-
21
32,4 / 33,4
B/G-CCIR, D/K-OIRT
OFWK-3258
38,9
26
32,4 / 33,4
D/K-OIRT, B/G-CCIR
OFWK-9260
38,9
22
32,9 / 33,05 / 33,4
B/G-CCIR, NICAM
OFWG-9251
38,9
22
32,35 / 32,9 / 33,4
D/K-OIRT,B/G-CCIR,I
OFWK-9260
38,0
-
31,5 / 32,5
D/K-OIRT, B/G-CCIR
OFWK-3254
38,0
-
31,5 / 32,5
D/K-OIRT, B/G-CCIR
OFWK-3264
38,0
-
31,5 / 32,5
D/K-OIRT, B/G-CCIR
OFWK-3351
38,0
-
31,5 / 32,5
D/K-OIRT, B/G-CCIR
OFWK-3351
38,0
-
31,5 / 32,5
D/K-OIRT, B/G-CCIR
OFWK-3264
38,9
-
32,4 / 33,4
D/K-OIRT, B/G-CCIR
OFWK-3350
38,9
-
32,4 / 33,4
D/K-OIRT, B/G-CCIR
OFWK-3258

Table 3. SAW filters for cable TV modulators.

Type
Center frequency [MHz]
Insertion loss [dB]
1 dB bandwidth [MHz]
3 dB bandwidth [MHz]
Standard*)
Package
35,0
35,4
35,0
26
26
33,5
6,5
6,0
33,5
-
-
-
D/K
D/K
D/K
TS-58
TS-58
PCZ-24
36,0
34
32
7,5
8,0
-
-
L
I
PCZ-14
TS-59
40,0
39,8
13
20
0,8
-
-
0,45
B/G
TS-59
TS-58

*) B/G: CCIR, Germany, Europe
D/K: OIRT, eastern standard
L: France
I: Great Britain

Table 4. Professional SAW filters

Type
Center frequency [MHz]
Insertion loss [dB]
1 dB bandwidth [MHz]
3 dB bandwidth [MHz]
Package
35,7
23
7,5
-
TS-59M
36,5
21
6,5
-
TS-59M
43,2
21
-
min. 1,8
TS-59M
60,0
18
-
min. 8,0
DIL-14
70,0
26
20
20
20
26
30
33
5
10
10
12
14
-
-
-
-
-
-
-
30
30
PCZ-14
PCZ-14
PCZ-14
DIL-14
PCZ-14
PCZ-14
PCZ-14
164,465
1,5
-
0,14
DIL-14

Table 5. Notch filters

Frequency f p [MHz]
Attenuation at frequency f p [dB]
Bandwith [kHz]
Metal package [mm]
100÷500
³ 40dB
³ 35
60x27x19

Table 6. SAW, PSAW and STW delay lines
Type
 DL165 DL267 DL313 DL506 DL701 DL702 DL741 DL742 DL801 DL802
Center frequency [MHz]
~165
~267
~313
~506
~70
~70
~74,5
~74,5
~80
~80

Table 7. SAW and PSAW resonators

Type
Center frequency [MHz]
~164
~ 197
~303
~357
~423
~434
~512,5
~70,3
~70,3

Contact person:
Waldemar Soluch, Prof.
 Tel.: (+48 22) 835 30 41 ext. 121
Fax: (+48 22) 834 90 03;
e-mail: soluch_w@itme.edu.pl

 

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