MAX9257/MAX9258
6 _______________________________________________________________________________________
Fully Programmable Serializer/Deserializer
with UART/I
2
C Control Channel
MAX9257 AC ELECTRICAL CHARACTERISTICS (continued)
(V
CC_
= +3.0V to +3.6V, R
L
= 50Ω ±1%, T
A
= -40°C to +105°C, unless otherwise noted. Typical values are at V
CC_
= +3.3V,
T
A
= +25°C.) (Notes 5, 9)
PARAMETER SYMBOL CONDITIONS MIN TYP MAX UNITS
Low Period of SCL Clock t
LOW
(Figure 30) 1.1 µs
High Period of SCL Clock t
HIGH
(Figure 30) 0.6 µs
Repeated START Condition
Setup Time
t
SU:STA
(Figure 30) 0.5 µs
Data Hold Time t
HD:DAT
(Figure 30) 0 0.9 µs
Data Setup Time t
SU:DAT
(Figure 30) 100 ns
Setup Time for STOP Condition t
SU:STO
(Figure 30) 0.5 µs
Bus Free Time t
BUF
(Figure 30) 1.1 µs
MAX9258 DC ELECTRICAL CHARACTERISTICS
(V
CC_
= +3.0V to +3.6V, R
L
= 50Ω ±1%, differential input voltage |V
ID
| = 0.05V to 1.2V, input common-mode voltage V
CM
= |V
ID
/2| to
V
CC
- |V
ID
/2|, T
A
= -40°C to +105°C, unless otherwise noted. Typical values are at V
CC_
= +3.3V, |V
ID
| = 0.2V, V
CM
= 1.2V,
T
A
= +25°C.) (Notes 2, 3)
PARAMETER SYMBOL CONDITIONS MIN TYP MAX UNITS
SINGLE-ENDED INPUTS
High-Level Input Voltage V
IH
2.0 V
CC
V
Low-Level Input Voltage V
IL
00.8V
TXIN -60 +60
Input Current I
IN
V
IN
= 0 to V
CC
PD -20 +20
µA
Input Clamp Voltage V
CL
I
CL
= -18mA -1.5 V
SINGLE-ENDED OUTPUTS
I
OH
= -100µA
V
CCOUT
-
0.1
High-Level Output Voltage V
OH
I
OH
= -2mA
V
CCOUT
-
0.35
V
I
OL
= 100µA 0.1
Low-Level Output Voltage V
OL
I
OL
= 2mA 0.3
V
High-Impedance Output Current I
OZ
PD = low, V
O
= 0 to V
CCOUT
-1 +1 µA
V
O
= 0V (Note 4) -16 -65
Output Short-Circuit Current I
OS
PCLK_OUT, V
O
= 0V -22 -80
mA
OPEN-DRAIN OUTPUTS
Output Low Voltage V
OL
V
CCOUT
= +3V, I
OL
= 6.4mA 0.55 V
Output Low Voltage V
OL
V
CCOUT
= +1.71V, I
OL
= 1.95mA 0.3 V
Leakage Current I
LEAK
V
O
= 0 or V
CC
1µA
LVDS INPUTS (SDI+, SDI-)
Differential Input High Threshold V
TH
50 mV
Differential Input Low Threshold V
TL
-50 mV
Input Current I
IN+
I
IN-
-60 +60 µA
Power-Off Input Current I
INO+
I
INO-
V
CC_
= 0 or open -70 +70 µA
CONTROL CHANNEL TRANSCEIVER
Differential Output Voltage V
OD
250 460 mV
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