AK2546 Datasheet, PDF (23/27 Pages) Asahi Kasei Microsystems – 7 channel T1 Transceiver

ASAHI KASEI
RECOMMENDED EXTERNAL CIRCUIT
Transmit Circuit
VDD
AK2546
C1
1:2
TTIPx
VDD
TRINGx
C1=0.47µF
Received Circuit
AK2546
VDD
R1
2:1
RTIPx
R3
VDD
R4
R2
RRINGx
R1=R2=68Ω
R3=R4=130Ω
[AK2546]
Recommended Transformer Specification
Turns Primary
Leakage
Ratio Inductance Inductance
(Typ) (Min)
(Max)
Tx
1:2
720µH
0.3µH
Rx
1:2
720µH
0.3µH
Interwinding
Capacitance
(Max)
30pF
30pF
DCR
(Max)
pri
0.6Ω
0.6Ω
sec
1.2Ω
1.2Ω
C0019-E-01
23
1999/9