PSB2132 Datasheet, PDF (94/95 Pages) Siemens Semiconductor Group – Two Channel Codec Filter for Terminal Applications SICOFI2-TE

PSB 2132
PSB 2134
Electrical Characteristics
9.5 Signaling Interface
9.5.1 From the µC-interface to the SO/SB-pins (data downstream)
Parameter
Symbol
Limit Values
Unit
min.
typ.
max.
SO/SB delay time ¹⁾
t_dSout
30
100
ns
SB to ‘Z’ - time
t_dSBZ
40
100
ns
SB to ‘drive’-time
t_dSBD
40
100
ns
1) _{All delay times are made up by two components: an intrinsic time (min-time), caused by internal processings,}
and a second component caused by external circuitry (C-load)
9.5.2 From the SI/SB-pins to the µC-interface (data upstream)
There is no way specifying the time when data applied to SI-pins (and SB-pins if
programmed as signaling input pins) is sampled by the SICOFI2/4-TE.
The time only depends on internal signals (16 MHz masterclock, and status of various
counters), and there is no link to a low frequency external signal.
Semiconductor Group
94
09.97