imp8980d A1 PROs co., Ltd., imp8980d Datasheet - Page 9

• Manufacturer Part Number: imp8980d
• Description: Pcm Digital Switch
• Manufacturer: A1 PROs co., Ltd.

Figure 12 Frame Allignment
Figure 13 Clock Timing
†† Timing is over recommended temperature & power supply voltages.
*
‡ Typical figures are at 25°C and are for design aid only: not guaranteed and not subject to production testing.
C4i
C4i
FOi
Bit
Cells
AC Electrical Characteristics † - Clock Timing (Figures 12 and 13)
1
2
3
4
5
6
7
F0i
Contents of Connection Memory are not lost if the clock stops, however, ST-BUS outputs go into the high
impedance state. NB: Frame Pulse is repeated every 512 cycles of C4i
Characteristics
Clock Period*
Clock Width High
Clock Width Low
Clock Transition Time
Frame Pulse Setup TIme
Frame Pulse Hold Time
Frame Pulse Width
2.0V
0.8V
2.0V
0.8V
t
FPH
t
CL
Channel 31
Bit 0
Sym
t
t
t
t
t
t
FPW
t
CCT
CLK
FPH
CH
CTT
t
CL
CLK
0.020
t
220
110
t
Min Typ ‡ Max
FPS
CTT
95
t
CHL
244
122
122
244
20
20
t
FPW
300
150
150
670
.
t
CTT
Units
ns
ns
ns
ns
ns
µs
ns
t
FPH
Channel 0
Bit 7
Test Conditions
t
CH
t
FPS
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