TYPE
LC Filters for TV, VCR and Video Camera
TOKO
4FW
TYPE 4FW
Features
Applications
l Ultra-compact LC block filters based on 4mm square coil
units. Suitable for surface mounting.
l Developed for use in the increasingly compact world of
video equipment.
l Basic units will take up to 2 built-in capacitors.
l Adjustable and non-adjustable types available. Up to three
units may be used in combination.
l Highly adaptable – suitable for highpass, lowpass, and
bandpass filters, delay lines, equalizers, etc.
l Shield case minimizes interference with other components,
allowing high-density layout.
Specifications
Effective bandwidth
Maximum inductance
Approx. Q value under no load
Internal capacitor
0.1 ~ 15MHz
700µH
40
4~750pF up to 2 int.
3
Max. no. combinable
l Suitable for surface mounting (reflow soldering).
Low Pass Filters for Video Camera
Filters for Digital TV
Toko part no.
Toko part no.
H355LDK-8287
G355ENK-8288
H355LDK-8291
G355ENK-8292
H355LDK-8289
G355ENK-8290
H355LDK-8281
G355ENK-8282
TH355LSK-8620
TH355LSK-8623
Pixels
180k
Frequency
2.7MHz
2.7MHz
3.8MHz
3.8MHz
5.4MHz
5.4MHz
5.72MHz
5.72MHz
15MHz
Fig.
1
Application
OUT LPF
Fig.
H355LNK-8478
18
180k
2
250k
3
Wide-band Delay Lines
250k
4
Toko part no.
Group delay
20ns
Impedance
Fig.
19
360k
5
TG355ENK-6892
TG355ENK-6893
TG355ENK-6894
TG355ENK-6895
150 ohm
150 ohm
150 ohm
150 ohm
360k
6
30ns
20
380k
7
40ns
21
380k
8
50ns
22
480k over
480k over
9
30MHz
10
Equalizing Transformers
Toko part no.
G355ENK-3277
G355ENK-4546
G355ENK-3268
G355ENK-4455
G355ENK-4497
G355ENK-3238
G355ENK-4667
G355ENK-3504
G355ENK-3404
G355ENK-4099
G355ENK-4100
G355ENK-1677
G355ENK-2221
G355ENK-5239
Bandwidth
Group delay
70ns
Fig.
23
24
25
26
27
28
29
30
31
32
33
34
35
36
Filters for RGB Encoder
10MHz
10MHz
10MHz
9MHz
6MHz
7MHz
5MHz
5MHz
4MHz
3MHz
3MHz
1.5MHz
1.5MHz
7MHz
Toko part no.
Application
Impedance
1kohm
Fig.
11
90ns
H355BSJ-2929KPD 3.58MHz BPF
H355BSJ-2953KPD 4.43MHz BPF
100ns
120ns
160ns
150ns
180ns
200ns
220ns
250ns
290ns
600ns
650ns
140ns
1kohm
12
TH355LNK-5751
Y Delay Line
1kohm
13
Filters for DVD
Toko part no.
Application
RF LPF
Impedance
330 ohm
Fig.
14
TH355LSK-7940
Filters for Digital VHS
Toko part no.
Application
Impedance Fig.
330 ohm 15
TG355ENK-6675 Transversal Filter
Filters for MUSE decoder, M-N Converter
Toko part no.
TH355LDK-7915
TG355ENK-7916
Application
8.15MHz LPF
8.15MHz LPF
Impedance Fig.
330 ohm
330 ohm
16
17
1