Datasheet

MAX9157
Quad Bus LVDS Transceiver
4 _______________________________________________________________________________________
AC ELECTRICAL CHARACTERISTICS
(V
CC
= 3.0V to 3.6V, R
L
= 27Ω ±1%, differential input voltage |V
ID
| = 0.2V to V
CC
, input frequency to LVDS inputs = 85MHz, input fre-
quency to LVCMOS/LVTTL inputs = 100MHz, LVCMOS/LVTTL inputs = 0 to 3V with 2ns (10% to 90%) transition times. Differential input
voltage transition time = 1ns (20% to 80%). Input common-mode voltage V
CM
= 1.2V to 1.8V, DE_ = high, RE_ = low, T
A
= -40°C to
+85°C, unless otherwise noted. Typical values are at V
CC
= 3.3V, |V
ID
| = 0.2V, V
CM
= 1.2V, and T
A
= +25°C.) (Notes 3 and 5)
PARAMETER SYMBOL CONDITIONS MIN TYP MAX UNITS
DRIVER
MAX9157EGJ 1.2 1.96 2.5
Differential Propagation Delay
High to Low
t
PHLD
RE_ = high, C
L
= 10pF,
Figures 3, 4
MAX9157EHJ 1.1 1.87 2.4
ns
MAX9157EGJ 1.2 1.94 2.5
Differential Propagation Delay
Low to High
t
PLHD
RE_ = high, C
L
= 10pF,
Figures 3, 4
MAX9157EHJ 1.1 1.84 2.4
ns
Differential Skew | t
PHLD
- t
PLHD
|
(Note 6)
t
SKD1
RE_ = high, C
L
= 10pF, Figures 3, 4 33 160 ps
Channel-to-Channel Skew
(Note 7)
t
CCSK
RE_ = high, C
L
= 10pF, Figures 3, 4 58 300 ps
Chip-to-Chip Skew (Note 8) t
SKD2
RE_ = high, C
L
= 10pF, Figures 3, 4 0.38 0.8 ns
Chip-to-Chip Skew (Note 9) T
SKD3
RE_ = high, C
L
= 10pF, Figures 3, 4 1.3 ns
MAX9157EGJ 0.6 1.13 1.4
Rise Time t
TLH
RE_ = high, C
L
= 10pF,
Figures 3, 4
MAX9157EHJ 0.6 1.07 1.4
ns
MAX9157EGJ 0.6 1.16 1.4
Fall Time t
THL
RE_ = high, C
L
= 10pF,
Figures 3, 4
MAX9157EHJ 0.6 1.11 1.4
ns
MAX9157EGJ 6.79 8
Disable Time High to Z t
PHZ
RE_ = high, C
L
= 10pF,
Figures 5, 6
MAX9157EHJ 6.79 8
ns
MAX9157EGJ 3.16 8
Disable Time Low to Z t
PLZ
RE_ = high, C
L
= 10pF,
Figures 5, 6
MAX9157EHJ 3.48 8
ns
MAX9157EGJ 4.67 7
Enable Time Z to High t
PZH
RE_ = high, C
L
= 10pF,
Figures 5, 6
MAX9157EHJ 4.71 7
ns
MAX9157EGJ 4.36 7
Enable Time Z to Low t
PZL
RE_ = high, C
L
= 10pF,
Figures 5, 6
MAX9157EHJ 4.39 7
ns
Maximum Operating Frequency
(Note 10)
f
MAX
RE_ = high, C
L
= 10pF, Figures 5, 6 100 MHz
RECEIVER
MAX9157EGJ 1.8 2.58 4.1
Differential Propagation Delay
High to Low
t
PHLD
DE_ = low, Figures 7, 8;
C
L
=15pF
MAX9157EHJ 1.8 2.61 4.1
ns
MAX9157EGJ 1.8 2.49 4.1
Differential Propagation Delay
Low to High
t
PLHD
DE_ = low, Figures 7, 8;
C
L
=15pF
MAX9157EHJ 1.8 2.52 4.1
ns
Differential Skew | t
PHLD
-
t
PLHD
| (Note 6)
t
SKD1
DE_ = low, Figures 7, 8; C
L
= 15pF 90 450 ps
Channel-to-Channel Skew
(Note 7)
t
CCSK
DE_ = low, Figures 7, 8; C
L
= 15pF 131 580 ps
Chip-to-Chip Skew (Note 8) t
SKD2
DE_ = low, Figures 7, 8; C
L
=15pF 0.7 1.7 ns
Chip-to-Chip Skew (Note 9) t
SKD3
DE_ = low, Figures 7, 8; C
L
=15pF 0.7 1.7 ns
Rise Time t
TLH
DE_ = low, Figures 7, 8; C
L
= 15pF 0.5 1.1 1.6 ns