SN65LVDS4 Datasheet, PDF (1/20 Pages) Texas Instruments – 1.8-V HIGH-SPEED DIFFERENTIAL LINE RECEIVER

SN65LVDS4
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1.8-V HIGH-SPEED DIFFERENTIAL LINE RECEIVER
Check for Samples: SN65LVDS4
SLLSE15 – JULY 2011
FEATURES
1
• Designed for Signaling Rates up to:
– 500-Mbps Receiver
The signaling rate of a line is the number of voltage transitions that
are made per second expressed in the units bps (bits per second)
• Operates From a 1.8-V or 2.5-V Core Supply
• Available in 1.5-mm × 2-mm QFN Package
• Bus-Terminal ESD Exceeds 2 kV (HBM)
• Low-Voltage Differential Signaling With Typical
Output Voltages of 350 mV Into a 100-Ω Load
• Propagation Delay Times
– 2.1 ns Typical Receiver
• Power Dissipation at 250 MHz
– 40 mW Typical
• Requires External Failsafe
• Differential Input Voltage Threshold Less Than
50 mV
• Can Provide Output Voltage Logic Level (3.3-V
LVTTL, 2.5-V LVCMOS, 1.8-V LVCMOS) Based
on External VDD Pin, Thus Eliminating
External Level Translation
APPLICATIONS
• Clock Distribution
• Wireless Base Stations
• Newtwork Routers
DESCRIPTION
The SN65LVDS4 is a single, low-voltage, differential
line receiver in a small-outline QFN package.
SN65LVDS4 (Receiver)
LVDS4 in QFN Package
(BOTTOM VIEW)
VDD
10
NC 9
1 GND
SN65LVDS4 (Receiver)
LVDS4 in QFN Package
(TOP VIEW)
VDD
10
GND 1
9 NC
R8
2A
A2
R
GND 7
3B
B3
7 GND
NC 6
5
VCC
4 NC
NC 4
5
VCC
6 NC
Table 1. Pin Description Table
PIN
I/O
NAME NO.
DESCRIPTION
A
2
I LVDS input, positive
B
3
I LVDS input, negative
GND 1, 7
– Ground
NC 4, 6, 9 – No connect
R
8
O 1.8/2.5 LVCMOS/3.3 LVTTL output
VCC
5
– Core supply voltage
VDD 10
– Output drive voltage
PART NUMBER
SN65LVDS4RSE
AVAILABLE OPTIONS
INTEGRATED TERMINATION
No
PACKAGE
QFN
PACKAGE MARKING
QXB
SPACER
The SN65LVDS4 is characterized for operation from –40°C to 85°C.
Table 2. FUNCTION TABLE
INPUTS
OUTPUT ⁽¹⁾
V_ID = V_A – V_B
R
V_ID ≥ 50 mV
H
V_ID ≤ –50 mV
L
(1) H = high level, L = low level, ? = indeterminate
1
Please be aware that an important notice concerning availability, standard warranty, and use in critical applications of Texas
Instruments semiconductor products and disclaimers thereto appears at the end of this data sheet.
PRODUCTION DATA information is current as of publication date.
Products conform to specifications per the terms of the Texas
Instruments standard warranty. Production processing does not
necessarily include testing of all parameters.
Copyright © 2011, Texas Instruments Incorporated