zl50232 Zarlink Semiconductor, zl50232 Datasheet - Page 25

• Manufacturer Part Number: zl50232
• Description: 32 Channel Voice Echo Canceller
• Manufacturer: Zarlink Semiconductor

AC Electrical Characteristics
- Voltages are with respect to ground (V
† Characteristics are over recommended operating conditions unless otherwise stated.
† Characteristics are over recommended operating conditions unless otherwise stated.
‡ Typical figures are at 25
† Characteristics are over recommended operating conditions unless otherwise stated.
‡ Typical figures are at 25
* Note1: High Impedance is measured by pulling to the appropriate rail with R
AC Electrical Characteristics
AC Electrical Characteristics
1 Frame pulse width (ST-BUS, GCI)
2 Frame Pulse Setup time before
3 Frame Pulse Hold Time from C4i
4 C4i Period
5 C4i Pulse Width High
6 C4i Pulse Width Low
7 C4i Rise/Fall Time
1
2
3
1
2
3
4
C4i falling (ST-BUS or GCI)
falling (ST-BUS or GCI)
Rin/Sin Set-up Time
Rin/Sin Hold Time
Rout/Sout Delay
- Active to Active
Output Data Enable (ODE)
Delay
CMOS Threshold
CMOS Rise/Fall Threshold Voltage High
CMOS Rise/Fall Threshold Voltage Low
Characteristic
Characteristic
Characteristics
°
°
C, V
C, V
DD1
DD1
= 3.3 V and for design aid only: not guaranteed and not subject to production testing.
= 3.3 V and for design aid only: not guaranteed and not subject to production testing.
†
†
†
ss
- Timing Parameter Measurement Voltage Levels
- Serial Streams for ST-BUS and GCI Backplanes
- Frame Pulse and C4i
) unless otherwise stated.
Sym.
t
t
t
t
SOD
ODE
Sym.
SIS
SIH
t
t
t
t
FPW
t
t
FPS
FPH
t
r
CP
CH
CL
, t
f
Zarlink Semiconductor Inc.
Min.
10
10
ZL50232
Min.
190
Sym.
V
20
10
10
85
85
V
V
HM
LM
TT
25
Typ.
Typ.
122
122
244
‡
L
0.5V
0.7V
0.3V
, with timing corrected to cancel time taken to discharge C
Level
‡
Max.
60
30
DD1
DD1
DD1
t
Max.
CP
150
150
300
150
150
10
2*
-20
Units
ns
ns
ns
ns
Units
Units
V
V
V
ns
ns
ns
ns
ns
ns
ns
C
C
See Note 1
L
L
=150 pF
=150 pF, R
Test Conditions
Conditions
L
Notes
=1 K
Data Sheet
L
.