ZL50010_06 Datasheet, PDF (82/87 Pages) Zarlink Semiconductor Inc – Flexible 512 Channel DX with Enhanced DPLL

ZL50010
Data Sheet
AC Electrical Characteristics^† - ST-BUS Output Tristate Timing
Characteristic
Sym.
Min. Typ. ^‡ Max. Units
Test
Conditions
1 STo Delay - Active to High-Z
STo Delay - High-Z to Active
2.048 Mbps
4.096 Mbps
8.192 Mbps
t_DZ, t_ZD
15
15
15
ns
ns
ns
R_L=1 K,
C_L=30 pF,
See Note 1.
2 Output Driver Enable (ODE) Delay
- High-Z to Active
2.048 Mbps
4.096 Mbps
8.192 Mbps
t_{ZD_ODE}
45
ns
45
ns
45
ns
2 Output Driver Disable (ODE) Delay
- Active to High-Z
2.048 Mbps
4.096 Mbps
8.192 Mbps
t_{DZ_ODE}
30
ns
30
ns
30
ns
† Characteristics are over recommended operating conditions unless otherwise stated.
‡ Typical figures are at 25°C and are for design aid only: not guaranteed and not subject to production testing.
* Note 1: High Impedance is measured by pulling to the appropriate rail with R_L, with timing corrected to cancel the time taken to discharge C_L.
CKo0-2
STo
STo
t_DZ
Valid Data
t_ZD
Tri-state
V_TT
Tri-state
V_TT
Valid Data V_TT
Figure 46 - Serial Output and External Control
ODE
t_{ZD_ODE}
STo
HiZ
t_{DZ_ODE}
Valid Data
HiZ
V_TT
V_TT
Figure 47 - Output Driver Enable (ODE)
82
Zarlink Semiconductor Inc.