MT9085BPR Zarlink Semiconductor, Inc., MT9085BPR Datasheet - Page 17

• Manufacturer Part Number: MT9085BPR
• Description: 1024 Channels TDM (ST-BUS) to Parallel Bus Access Circuit (PAC)
• Manufacturer: Zarlink Semiconductor, Inc.

AC Electrical Characteristics
(See Figure 17)
† Timing is over recommended temperature & power supply voltages
‡ Typical figures are at 25
1
2
3
Note:
C4i
C16i
S0i-S7i
(CKD=0)
S0i-S7i
(CKD=1)
S0o-S7o
(CKD=0)
S0o-S7o
(CKD=1)
Serial Input Setup Time
Serial Input Hold Time
Serial Output Delay
1) The phase relationship of C4i and C16i depends on the user’s timing source (see Fig. 13 for device related contstraints).
2) Timing measurements for inputs are referenced to/from a low voltage of 0.8V and a high voltage of 2.0V.
t
SS
High Impedance to Active
Active to High Impedance
Characteristics
Measurements for outputs are referenced to/from a low voltage of 0.4V to a high voltage of 2.4V
Figure 17 - Serial Input and Output Timing in 4 Mbit/s Mode (2/4S=1)
°
- Voltages are with respect to Ground (V
C and are for design aid only: not guaranteed and not subject to production testing.
t
SS
Active to Active
t
SD
t
SH
†
- Serial Input and Output Timing in 4 MHz Mode (2/4S=1)
t
SD
Sym
t
SH
t
t
t
SS
SH
SD
Min
24
Serial Bit Cell
0
SS
t
SS
) unless otherwise stated.
Typ
‡
t
SS
Max
47
47
44
t
SD
t
SH
Units
ns
ns
ns
ns
ns
t
SD
C
C
C
t
SH
L
L
L
=150pF
=150pF
=150pF
Test Conditions
MT9085B
2-141