Audio
Line Matching Transformer
TLA4529
TLA4529 is a 1:1 line matching trans-
former with the following features.
Applications:
Interfacing equipment to a 600Ω line,
requiring high insulation voltage be-
tween line and equipment , and
where no DC current handling is re-
quired.
•
BABT certified for reinforced in-
sulation to EN41003 &
EN60950. .
Certificate #: CT/T/0054
•
•
Also conforms to U.S. FCC part
68, Canadian CS 03 and Austra-
lian AS3260 regulations.
Epoxy encapsulated.
MECHANICAL
1
2
4
620 Ω
370 Ω
Pri
Sec
3
310 nF
0.6
ALL DIMENSIONS
ARE IN INCHES
Fig.3 : Ref. Network (BS6305)
0.1
DIA 0.025
Fig.1: Schematic
for TLA4529 & -2
0.7
6
1
0.15
0.7
5 Sec
4
Pri 2
3
0.3
0.3
C2
C1
DOT AT
PIN 1
0.5
Fig.4: Schematic for
TLA4529-1
Fig.2: Test circuit
TLA4529-1
TLA4529 & -2
ELECTRICAL
Wind. Res.
TLA4529
TLA4529-1 TLA4529-2
(Ohms)
“
Pri
Sec
31.5
31.5
31.5
31.5
29.2
35.1
Leakage Ind.
(mH)
(dB)
Pri
< 9
< 1.0
0.2 - 4
> 65
< 9
< 1.0
0.2 - 4
> 65
< 1
< 1.0
Insertion Loss
Frequency Resp.
Longitudinal Bal.
Return Loss
@ 1000 Hz
< 0.5 dB
(KHz)
(dB)
0.2 - 100
> 65
200 - 4000 Hz
(dB)
(dB)
200 - 4000 Hz
200 - 4000 Hz
> 19
> 14
> 19
> 14
> 19
> 14
@ Zref = Fig.3, Zload = Fig.2
@ Zref = 600Ω, Zload = 600Ω
Cross talk
(dB)
200 - 4000 Hz
> 60
>60
> 90 dB
4000
Dielectric Strength
(Vrms)
4000
4000
Select for
optimum
Return Loss
C1 (Suggested value)
C2 (Suggested value)
27 nF
150 nF
27 nF
150 nF
Filtran Limited
229 Colonnade Road, Nepean, Ontario, K2E 7K3, Canada,
Tel: (613) 226-1626, Fax: (613) 226-7124
7-12