YTD428 Datasheet, PDF (12/14 Pages) YAMAHA CORPORATION – DSU LSI for the ISDN Terminal Equipment

HTD
LO1
YTD428
LTD
LO2
100 Ω
RO
RL
200 Ω
Transmit signal
Figure 4 Transmit Block Test Circuit
s Driver, Receiver I/O Impedance
Parameters
Receiver Input Impedance
Driver Ouput Impedance
Driver Ouput Impedance
Symbol
ZLI
ZLO1
ZLO0
Note 1 When no pulse is output.
Note 2 When pulse is output.
Condition
LI1 - LI2
LO1 - LO2 (Note1)
LO1 - LO2 (Note2)
Min.
50
50
Typ.
15
Max.
Units
kΩ
kΩ
Ω
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