
_______________________________________________________________________________________ 3
MAX9249
Gigabit Multimedia Serial Link
Serializer with LVDS System Interface
DC ELECTRICAL CHARACTERISTICS (continued)
(V
DVDD
= V
AVDD
= 1.7V to 1.9V, V
LVDSVDD
= 3.0V to 3.6V, V
IOVDD
= 1.7V to 3.6V, R
L
= 100I ±1% (differential), T
A
= -40NC to
+105NC, unless otherwise noted. Differential input voltage |V
ID
| = 0.1V to 1.2V, input common-mode voltage V
CM
= |V
ID
/2| to 2.4V
- |V
ID
/2|. Typical values are at V
DVDD
= V
AVDD
= V
IOVDD
= 1.8V, V
LVDSVDD
= 3.3V, T
A
= +25NC.)
PARAMETER SYMBOL CONDITIONS MIN TYP MAX UNITS
I
2
C AND UART I/O, OPEN-DRAIN OUTPUT (RX/SDA, TX/SCL, LFLT)
High-Level Input Voltage V
IH2
0.7 x
V
IOVDD
V
Low-Level Input Voltage V
IL2
0.3 x
V
IOVDD
V
Input Current I
IN2
V
IN
= 0 to V
IOVDD
(Note 2) -110 +5
FA
Low-Level Open-Drain Output
Voltage
V
OL2
I
OL
= 3mA
V
IOVDD
= 1.7V to 1.9V 0.4
V
V
IOVDD
= 3.0V to 3.6V 0.3
DIFFERENTIAL OUTPUT (OUT+, OUT-)
Differential Output Voltage V
OD
Preemphasis off (Figure 1) 300 400 500
mV
3.3dB preemphasis setting, V
OD(P)
(Figure 2)
350 610
3.3dB deemphasis setting, V
OD(D)
(Figure 2)
240 425
Change in V
OD
Between
Complementary Output States
DV
OD
15 mV
Output Offset Voltage
(V
OUT+
+ V
OUT-
)/2 = V
OS
V
OS
Preemphasis off 1.1 1.4 1.56 V
Change in V
OS
Between
Complementary Output States
DV
OS
15 mV
Output Short-Circuit Current I
OS
V
OUT+
or V
OUT-
= 0V -60
mA
V
OUT+
or V
OUT-
= 1.9V 25
Magnitude of Differential Output
Short-Circuit Current
I
OSD
V
OD
= 0V 25 mA
Output Termination Resistance
(Internal)
R
O
From OUT+, OUT- to V
AVDD
45 54 63
I
REVERSE CONTROL-CHANNEL RECEIVER (OUT+, OUT-)
High Switching Threshold V
CHR
27 mV
Low Switching Threshold V
CLR
-27 mV
LINE-FAULT DETECTION INPUT (LMN_)
Short-to-GND Threshold V
TG
Figure 3 0.3 V
Normal Thresholds V
TN
Figure 3 0.57 1.07 V
Open Thresholds V
TO
Figure 3 1.45
V
IO
+
60mV
V
Open Input Voltage V
IO
Figure 3 1.47 1.75 V
Short-to-Battery Threshold V
TE
Figure 3 2.47
LVDS INPUTS (RXIN_ _, RXCLKIN_)
Differential Input High Threshold V
TH
50 mV
Differential Input Low Threshold V
TL
-50 mV
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