DS90LV804_16 Datasheet, PDF (7/15 Pages) Texas Instruments – 4-Channel 800 Mbps LVDS Buffer/Repeater

DS90LV804
www.ti.com
SNLS195L – SEPTEMBER 2005 – REVISED APRIL 2013
Pin
Name
WQFN Pin
Number
DIFFERENTIAL INPUTS
IN0+
9
IN0−
10
IN1+
11
IN1−
12
IN2+
13
IN2−
14
IN3+
15
IN3−
16
DIFFERENTIAL OUTPUTS
OUT0+
32
OUT0−
31
OUT1+
30
OUT1−
29
OUT2+
28
OUT2−
27
OUT3+
26
OUT3-
25
DIGITAL CONTROL INTERFACE
EN
8
POWER
V_DD
GND
3, 4, 6, 7, 19, 20, 21, 22
1, 2, 5, 17, 18⁽²⁾
N/C
23, 24
I/O, Type
PIN DESCRIPTIONS
Description
I, LVDS Channel 0 inverting and non-inverting differential inputs.
I, LVDS Channel 1 inverting and non-inverting differential inputs.
I, LVDS Channel 2 inverting and non-inverting differential inputs.
I, LVDS Channel 3 inverting and non-inverting differential inputs.
O, LVDS Channel 0 inverting and non-inverting differential outputs⁽¹⁾
O, LVDS Channel 1 inverting and non-inverting differential outputs⁽¹⁾
O, LVDS Channel 2 inverting and non-inverting differential outputs⁽¹⁾
O, LVDS Channel 3 inverting and non-inverting differential outputs⁽¹⁾
I, LVTTL Enable pin. When EN is LOW, the driver is disabled and the LVDS outputs are in TRI-
STATE. When EN is HIGH, the driver is enabled. LVCMOS/LVTTL level input.
I, Power
I, Power
V_DD = 3.3V, ±5%
Ground reference for LVDS and CMOS circuitry. For the WQFN package, the DAP is
used as the primary GND connection to the device. The DAP is the exposed metal
contact at the bottom of the WQFN-32 package. It should be connected to the ground
plane with at least 4 vias for optimal AC and thermal performance. The pin numbers
listed should also be tied to ground for proper biasing.
No Connect
(1) The LVDS outputs do not support a multidrop (BLVDS) environment. The LVDS output characteristics of the DS90LV804 device have
been optimized for point-to-point backplane and cable applications.
(2) Note that for the WQFN package the GND is connected thru the DAP on the back side of the WQFN package in addition to grounding
actual pins on the package as listed.
Copyright © 2005–2013, Texas Instruments Incorporated
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