參數(shù)資料
型號(hào)： MAX9394
廠商： Maxim Integrated Products, Inc.
英文描述： 2:1 Multiplexers and 1:2 Demultiplexers with Loopback
中文描述： 2:1復(fù)用器和1:2解復(fù)用器，帶有環(huán)回
文件頁(yè)數(shù)： 6/13頁(yè)
文件大?。?/td> 361K
代理商： MAX9394
M
Detailed Description
The LVDS interface standard provides a signaling
method for point-to-point communication over a con-
trolled-impedance medium as defined by the ANSI
TIA/EIA-644 standard. LVDS utilizes a lower voltage
swing than other communication standards, achieving
higher data rates with reduced power consumption,
while reducing EMI emissions and system susceptibility
to noise.
The MAX9394/MAX9395 high-speed, low-power 2:1
multiplexers and 1:2 demultiplexers with loopback pro-
vide signal redundancy switching in telecom and stor-
age applications. These devices select one of two
remote signal sources for local input and buffer a single
local output signal to two remote receivers.
The multiplexer section (channel B) accepts two differen-
tial inputs and generates a single LVDS output. The
demultiplexer section (channel A) accepts a single differ-
ential input and generates two parallel LVDS outputs. The
MAX9394/MAX9395 feature a loopback mode that con-
nects the input of channel A to the output of channel B
and connects the selected input of channel B to the out-
puts of channel A. LB_SELA and LB_SELB provide inde-
pendent loopback control for each channel.
Three LVCMOS/LVTTL logic inputs control the internal
connections between inputs and outputs, one for the
multiplexer portion of channel B (BSEL), and the other
two for loopback control of channels A and B (LB_SELA
and LB_SELB). Independent enable inputs for each dif-
ferential output pair provide additional flexibility.
Input Fail-Safe
The differential inputs of the MAX9394/MAX9395 pos-
sess internal fail-safe protection. Fail-safe circuitry
forces the outputs to a differential-low condition for
undriven inputs or when the common-mode voltage
exceeds the specified range. The MAX9394 provides
high-level input fail-safe detection for LVDS, HSTL, and
other GND-referenced differential inputs. The MAX9395
provides low-level input fail-safe detection for LVPECL,
CML, and other V
CC
-referenced differential inputs.
Select Function
BSEL selects the differential input pair to transmit
through OUTB (
OUTB
) for LB_SELB = GND or through
OUTA_ (
OUTA_
) for LB_SELA = V
CC
. LB_SEL_ controls
the loopback function for each channel. Connect
LB_SEL_ to GND to select the normal inputs for each
channel. Connect LB_SEL_ to V
CC
to enable the loop-
2:1 Multiplexers and 1:2 Demultiplexers with
Loopback
6
_______________________________________________________________________________________
Pin Description (continued)
PIN
TQFP
QFN
NAME
FUNCTION
21
19
ENA0
Channel A0 Output Enable. Drive ENA0 high to enable the A0 LVDS outputs. An
internal 435k
resistor to GND pulls ENA0 low when unconnected.
22
20
OUTA0
Channel A0 LVDS Inverting Output. Connect a 100
termination resistor between
OUTA0 and
OUTA0
at the receiver inputs to ensure proper operation.
23
21
OUTA0
Channel A0 LVDS Noninverting Output. Connect a 100
termination resistor between
OUTA0 and
OUTA0
at the receiver inputs to ensure proper operation.
26
24
INA
LVDS/HSTL (MAX9394) or LVPECL/CML (MAX9395) Noninverting Input. An internal
128k
pullup resistor to V
CC
pulls the input high when unconnected (MAX9394). An
internal 68k
resistor to GND pulls the input low when unconnected (MAX9395).
27
25
INA
LVDS/HSTL (MAX9394) or LVPECL/CML (MAX9395) Inverting Input. An internal
128k
pullup resistor to V
CC
pulls the input high when unconnected (MAX9394). An
internal 68k
resistor to GND pulls the input low when unconnected (MAX9395).
28
26
LB_SELA
Loopback Select for Channel A Output. Connect LB_SELA to GND or leave
unconnected to reproduce the INA (
INA
) differential inputs at OUTA_ (
OUTA_
).
Connect LB_SELA to V
CC
to loop back the INB_ (
INB_
) differential inputs to OUTA_
(
OUTA_
). An internal 435k
resistor to GND pulls LB_SELA low when unconnected.
—
—
EP
Exposed Paddle. Connect to GND for optimal thermal and EMI characteristics.
相關(guān)PDF資料
PDF描述
MAX9395 2:1 Multiplexers and 1:2 Demultiplexers with Loopback
MAX9394EHJ 2:1 Multiplexers and 1:2 Demultiplexers with Loopback
MAX9395EHJ 2:1 Multiplexers and 1:2 Demultiplexers with Loopback
MAX9394ETI* 2:1 Multiplexers and 1:2 Demultiplexers with Loopback
MAX9395ETI* 2:1 Multiplexers and 1:2 Demultiplexers with Loopback
相關(guān)代理商/技術(shù)參數(shù)
參數(shù)描述
MAX9394EHJ 制造商:Maxim Integrated Products 功能描述:- Rail/Tube
MAX9394EHJ+ 制造商:Maxim Integrated Products 功能描述:LVDS SERDES 0.45V TQFP - Rail/Tube
MAX9394EHJ+T 制造商:Maxim Integrated Products 功能描述:LVDS SERDES 0.45V 32TQFP - Tape and Reel
MAX9394EHJ-T 制造商:Maxim Integrated Products 功能描述:- Tape and Reel
MAX9395EHJ 制造商:Maxim Integrated Products 功能描述:- Rail/Tube
發(fā)布緊急采購(gòu)，3分鐘左右您將得到回復(fù)。

采購(gòu)需求

(若只采購(gòu)一條型號(hào)，填寫一行即可)

發(fā)布成功！您可以繼續(xù)發(fā)布采購(gòu)。也可以進(jìn)入我的后臺(tái)，查看報(bào)價(jià)

發(fā)布成功！您可以繼續(xù)發(fā)布采購(gòu)。也可以進(jìn)入我的后臺(tái)，查看報(bào)價(jià)

*型號(hào) *數(shù)量 廠商 批號(hào) 封裝
添加更多采購(gòu)

我的聯(lián)系方式

*
*
*