
MT90500
117
Table 79 - Main TDM Bus Input Clock Parameters
Characteristic
Sym
Min
Typ
Max
Units
Test Conditions
Clock Skew
- CLKx2 falling to CLKx1 change
t
FSK
10
ns
CLKx2 - Input Clock Period
2.048 Mbps bus (4.096 MHz clock)
4.096 Mbps bus (8.192 MHz clock)
8.192 Mbps bus (16.384 MHz clock)
t
Cx2P
244
122
61
ns
ns
ns
CLKx2 Input Pulse Width (HIGH / LOW)
2.048 Mbps bus (4.096 MHz clock)
4.096 Mbps bus (8.192 MHz clock)
8.192 Mbps bus (16.384 MHz clock)
t
Cx2H/L
97.6
48.8
26.2
122
61
30.5
146.4
73.2
34.8
ns
ns
ns
16.39 MHz (61 ns) input clock
with 50/50 duty cycle
.
CLKx1 - Input Clock Period
2.048 Mbps
4.096 Mbps
8.192 Mbps
t
Cx1P
488
244
122
ns
ns
ns
CLKx1 Pulse Width (HIGH / LOW)
2.048 Mbps
4.096 Mbps
8.192 Mbps
t
Cx1H/L
195.2
97.6
48.8
244
122
61
292.8
146.4
73.2
ns
ns
ns
16.39 MHz (61 ns) input
clock
.
PLLCLK - Input Clock Period
16.384 MHz
t
PLL
61
ns
PLLCLK Pulse Width (HIGH / LOW)
16.384 MHz
t
PLLH/L
26.2
30.5
34.8
ns
Frame Pulse Setup Time
FSYNC valid to CLKx2 falling (TCLKSYN = 1)
FSYNC valid to CLKx1 rising (negative FSYNC)
FSYNC valid to CLKx1 falling (positive FSYNC)
t
FIS
5
5
5
ns
MT90500 is TDM Timing Bus
Slave.
Frame Pulse Hold Time
CLKx2 falling to FSYNC invalid (TCLKSYN = 1)
CLKx1 rising to FSYNC invalid (negative FSYNC)
CLKx1 falling to FSYNC invalid (positive FSYNC)
t
FIH
10
10
10
ns
MT90500 is TDM Timing Bus
Slave.
Table 80 - Main TDM Bus Input Data Parameters
Characteristic
Sym
Min
Typ
Max
Units
Test Conditions
STi Setup Time
- STi VALID to CLKx1 falling
2/4 Sampling
t
SIS
5
ns
STi Hold Time
- CLKx1 falling to STi INVALID
2/4 Sampling
t
SIH
10
ns
STi Setup Time
- STi VALID to CLKx2 rising
3/4 Sampling
t
SIS
5
ns
STi Hold Time
- CLKx2 rising to STi INVALID
3/4 Sampling
t
SIH
10
ns
STi Setup Time
- STi VALID to CLKx1 rising
4/4 Sampling
t
SIS
5
ns
STi Hold Time
- CLKx1 rising to STi INVALID
4/4 Sampling
t
SIH
10
ns