STLVDS31B Datasheet, PDF (1/15 Pages) STMicroelectronics – High speed differential line drivers

STLVDS31B
High speed differential line drivers
Features
■ Meets or exceeds the requirements of ANSI
TIA/EIA-644 standard
) _{■ Low voltage differential signaling with typical}
t(s ^{output voltage of 350 mV and a 100 Ω load}
c _{■ Typical output voltage rise and fall times of}
u _{750 ps (400 Mbps)}
rod ^{■ Typical propagation delay times of 1.7 ns}
P ■ Operates from a single 3.3 V supply
te ^{■ Power dissipation 25 mW typical per driver at}
le ^{200 MHz}
o _{■ Driver at high impedance when disabled or with}
bs ^{VCC = 0 V}
O ^{■ Pin compatible with the AM26LS31,}
- SN65LVDS31
) _{■ Low voltage TTL (LVTTL) logic input levels}
ct(s _Description
rodu ^{The STLVDS31B is a quad differential line drivers}
that implements the electrical characteristics of
P _{low voltage differential signaling (LVDS). This}
te ^{signaling technique lowers the output voltage}
le ^{levels of 5 V differential standard levels (such as}
o ^{TIA/EIA-422B) to reduce the power, increase the}
s _{switching speeds and allows operations with a}
b_{3.3 V supply rail. Any of the four current mode}
O_{drivers will deliver a minimum differential output}
TSSOP16
transmission media may be printed circuit board
traces, backplanes or cables. The ultimate rate
and distance of data transfer is dependent upon
the attenuation characteristics of the media and
noise coupling to the environment.
The STLVDS31B is characterized for operation
from - 55 °C to 125 °C.
voltage magnitude of 247 mV into a 100 Ω load
when enabled.
The intended application of this device and
signalling technique is for point-to-point baseband
data transmission over controlled
impedancemedia approximately 100 Ω. The
Table 1. Device summary
Order code
Temperature range
STLVDS31BTR
- 40 to 85 °C
Package
TSSOP16 (tape and reel)
Packaging
2500 parts per reel
July 2009
Doc ID 8338 Rev 6
1/15
www.st.com
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