ACS8525T Semtech, ACS8525T Datasheet - Page 102

• Manufacturer Part Number: ACS8525T
• Description: Line Card Protection Switch for SONET/SDH Systems
• Manufacturer: Semtech

Table 24 DC Characteristics: LVDS Input/Output Port
Notes: (i) With 100
Figure 14 Recommended Line Termination for LVDS Input/Output Ports
Revision 3.01/August 2005 © Semtech Corp.
ADVANCED COMMUNICATIONS
Across all operating conditions, unless otherwise stated
LVDS Input Voltage Range
Differential Input Voltage = 100 mV
LVDS Differential Input Threshold
LVDS Input Differential Voltage
LVDS Input Termination Resistance
Must be placed externally across the LVDS
± input pins of ACS8525. Resistor should
be 100 Ω with 5% tolerance
LVDS Output High Voltage
(Note (i))
LVDS Output Low Voltage
(Note (i))
LVDS Differential Output Voltage
LVDS Change in Magnitude of Differential
Output Voltage for complementary States
(Note (i))
LVDS Output Offset Voltage
Temperature = 25
n x 8 kHz,
1.544/2.048 MHz,
6.48 MHz,
19.44 MHz,
38.88 MHz,
51.84 MHz,
77.76 MHz or
155.52 MHz
n x 8 kHz,
1.544/2.048 MHz,
6.48 MHz,
19.44 MHz,
38.88 MHz,
51.84 MHz,
77.76 MHz or
155.52 MHz
Parameter
o
C (Note (i))
Ω
load between the differential outputs.
Z
Z
Z
Z
O
O
O
O
= 50Ω
= 50Ω
= 50Ω
= 50Ω
100 Ω
100 Ω
V
V
V
V
Symbol
V
V
V
IDLVTSDS
DOSLVDS
R
OHLVDS
ODLVDS
VRLVDS
V
OLLVDS
OSLVDS
TERM
DITH
SEC1POS
SEC1NEG
SEC2POS
SEC2NEG
FINAL
Page 102
Minimum
01POS
01NEG
0.885
1.125
-100
250
0.1
95
0
-
-
Z
Z
O
O
Z
V
n
= 50Ω
= 50Ω
O
DD
Typical
100
= Transmission line Impedance
= +3.3 V
= integer 1 to 12,500
-
-
-
-
-
-
-
-
100 Ω
ACS8525 LC/P
Maximum
1.585
1.275
+100
2.40
105
450
1.4
25
-
Fully
Programmable
Output Frequencies
DATASHEET
www.semtech.com
F8595D_025LVDS_01
Units
mV
mV
mV
Ω
V
V
V
V
V