MAX9156 Maxim, MAX9156 Datasheet - Page 6

• Manufacturer Part Number: MAX9156
• Description: The MAX9156 is an LVPECL-to-LVDS level translator that accepts a single LVPECL input and translates it to a single LVDS output
• Manufacturer: Maxim

Bypass V
ceramic 0.01µF capacitor as close to the device as
possible.
Input and output trace characteristics affect the perfor-
mance of the MAX9156. Use controlled-impedance dif-
ferential traces. Ensure that noise couples as common
mode by running the traces within a differential pair
close together.
Maintain the distance within a differential pair to avoid
discontinuities in differential impedance. Avoid 90°
turns and minimize the number of vias to further prevent
impedance discontinuities.
The LVDS standards define signal levels for intercon-
nect with a differential characteristic impedance and
termination of 100Ω. Interconnects with a characteristic
impedance and termination of 90Ω to 132Ω impedance
are allowed, but produce different signal levels (see
Termination).
LVPECL signals are typically specified for 50Ω single-
ended characteristic impedance interconnect terminat-
ed through 50Ω to V
Use cables and connectors that have matched differen-
tial impedance to minimize impedance discontinuities.
For point-to-point LVDS links, the termination resistor
should be located at the LVDS receiver input and
Low-Jitter, Low-Noise LVPECL-to-LVDS Level
Translator in an SC70 Package
6
_______________________________________________________________________________________
CC
with a high-frequency surface-mount
Applications Information
CC
- 2V.
Cables and Connectors
Differential Traces
Supply Bypassing
Termination
match the differential characteristic impedance of the
transmission line.
Each line of a differential LVPECL link should be termi-
nated through 50Ω to V
Thevinin equivalent.
The LVDS output voltage level depends upon the differ-
ential characteristic impedance of the interconnect and
the value of the termination resistance. The MAX9156 is
guaranteed to produce LVDS output levels into 100Ω.
With the typical 3.6mA output current, the MAX9156 pro-
duces an output voltage of 360mV when driving a 100Ω
transmission line terminated with a 100Ω termination
resistor (3.6mA
els with different loads, see the Differential Output
Voltage vs. Load Resistor typical operating curve.
TRANSISTOR COUNT: 401
PROCESS: CMOS
✕
100Ω = 360mV). For typical output lev-
CC
- 2V or be replaced by the
Chip Information