參數(shù)資料
型號: SP3508CF
英文描述: Rugged 3.3V, 20Mbps, 8 Channel Multiprotocol Transceiver with Programmable DCE/DTE and Termination Resistors
中文描述: 堅固3.3,20Mbps的,8通道多協(xié)議收發(fā)器,具有可編程DCE的/ DTE和終端電阻
文件頁數(shù): 29/33頁
文件大?。?/td> 313K
代理商: SP3508CF
29
Date: 06/14/04
SP3508 Enhanced WAN Multi–Mode Serial Transceiver Copyright 2004 Sipex Corporation
TERM_OFF FUNCTION
The SP3508 contains a TERM_OFF pin that dis-
ables all three receiver input termination networks
regardless of mode. This allows the device to be
used in monitor mode applications typically found
in networking test equipment.
The TERM_OFF pin internally contains a pull-
down device with an impedance of over 500k
,
which will default in a "ON" condition during
power-up if V.35 receivers enable line and the
SHUTDOWN mode from the decoder will disable
the termination regardless of TERM_OFF.
LOOPBACK FUNCTION
The SP3508 contains a LOOPBACK pin that
invokes a loopback path. This loopback path is
illustrated in Figure 50. LOOPBACK has an inter-
nal pull-up resistor that defaults to normal mode
during power up or if the pin is left floating. During
loopback, the driver output and receiver input
characteristics will still adhere to its appropriate
specifications.
DECODER AND D_LATCH FUNCTION
The SP3508 contains a D_LATCH pin that latches
the data into the D0, D1 and D2 decoder inputs. If
tied to a logic LOW ("0"), the latch is transparent,
allowing the data at the decoder inputs to propa-
gate through and program the SP3508 accord-
ingly. If tied to a logic HIGH ("1"), the latch locks
out the data and prevents the mode from changing
until this pin is brought to a logic LOW.
FEATURES
There are internal pull-up devices on D0, D1 and
D2, which allow the device to be in SHUTDOWN
mode ("111") upon power up. However, if the
device is powered-up with the D_LATCH at a
logic HIGH, the decoder state of the SP3508 will
be undefined.
CTR1/CTR2 EUROPEAN COMPLIANCY
As with all of Sipex's previous multi-protocol
serial transceiver IC's the drivers and receivers
have been designed to meet all the requirements to
NET1/NET2 and TBR2 in order to meet CTR1/
CTR2 compliancy. The SP3508 is also tested in-
house at Sipex and adheres to all the NET1/2
physical layer testing and the ITU Series V speci-
fications before shipment. Please note that al-
though the SP3508, as with its predecessors, ad-
here to CRT1/CTR2 compliancy testing, any com-
plex or usual configuration should be double-
checked to ensure CTR1/CTR2 compliance. Con-
sult the factory for details.
相關(guān)PDF資料
PDF描述
SP3508EB Evaluation Board Manual
SP3508EF Rugged 3.3V, 20Mbps, 8 Channel Multiprotocol Transceiver with Programmable DCE/DTE and Termination Resistors
SP3508 Cermet Potentiometer; Resistance Max:50kohm; Resistance Tolerance:+/- 10 %; Power Rating:1W; Voltage Rating:350V; Series:149; Temperature Coefficient:+/-150 ppm; Resistor Element Material:Cermet; Leaded Process Compatible:Yes
SP385A Low Power 5V RS232 Dual Driver/Receiver with 0.1?μF Capacitors; Package: SO; No of Pins: 16; Temperature Range: -40?°C to 85?°C
SP385ACA Low Power 5V RS232 Dual Driver/Receiver with 0.1?μF Capacitors; Package: SO; No of Pins: 16; Temperature Range: -40?°C to 85?°C
相關(guān)代理商/技術(shù)參數(shù)
參數(shù)描述
SP3508CF-L 功能描述:外圍驅(qū)動器與原件 - PCI 3.3V 20MBPS 8CH PROG DCE/DTE RoHS:否 制造商:PLX Technology 工作電源電壓: 最大工作溫度: 安裝風(fēng)格:SMD/SMT 封裝 / 箱體:FCBGA-1156 封裝:Tray
SP3508EB 功能描述:LIN 收發(fā)器 20Mbps Multiprotocol Transceiver 8Ch 3.3V RoHS:否 制造商:NXP Semiconductors 工作電源電壓: 電源電流: 最大工作溫度: 封裝 / 箱體:SO-8
SP3508EF 制造商:SIPEX 制造商全稱:Sipex Corporation 功能描述:Rugged 3.3V, 20Mbps, 8 Channel Multiprotocol Transceiver with Programmable DCE/DTE and Termination Resistors
SP3508EF-L 功能描述:外圍驅(qū)動器與原件 - PCI 20MBPS 8CH MULTI 0-70C RoHS:否 制造商:PLX Technology 工作電源電壓: 最大工作溫度: 安裝風(fēng)格:SMD/SMT 封裝 / 箱體:FCBGA-1156 封裝:Tray
SP350ACP 制造商:Hammond Power Solutions 功能描述:Control Transformer, 350VA, 600,480-120x240