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ACT4808N-DF

更新时间： 2024-02-29 03:29:41
品牌 Logo 应用领域
艾法斯 - AEROFLEX /
页数 文件大小 规格书
9页 142K
描述
Dual Transceivers for MACAIR (A3818, A4905, A5232, A5690) and MIL-STD-1553A/B

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ACT4808N-DF 技术参数

生命周期：Active包装说明：DFP,
Reach Compliance Code：unknownHTS代码：8542.39.00.01
风险等级：5.74JESD-30 代码：R-XDFP-F36
负电源额定电压：-12 V功能数量：1
端子数量：36最高工作温度：125 °C
最低工作温度：-55 °C封装主体材料：UNSPECIFIED
封装代码：DFP封装形状：RECTANGULAR
封装形式：FLATPACK认证状态：Not Qualified
座面最大高度：4.445 mm标称供电电压：12 V
表面贴装：YES电信集成电路类型：MIL-STD-1553 DATA BUS TRANSCEIVER
温度等级：MILITARY端子形式：FLAT
端子节距：2.54 mm端子位置：DUAL

ACT4808N-DF 数据手册

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Standard Products  
ACT4808N Dual Transceivers  
for MACAIR (A3818, A4905, A5232, A5690) and MIL-STD-1553A/B  
www.aeroflex.com/Avionics  
May 25, 2005  
FEATURES  
❑
ACT4808N Dual Transceiver meets MIL-STD-1553A & B, Macair A3818, A5690,  
A5232 and A4905 specs  
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New Low Power Model  
Operates with 12V to 15V & +5V Power Supplies  
Voltage source output  
Plug-in or Flat Package  
Monolithic construction  
Designed for commercial, industrial and aerospace applications  
MIL-PRF-38534 compliant devices available  
Aeroflex-Plainview is a Class H & K MIL-PRF-38534 manufacturer  
GENERAL DESCRIPTION  
The Aeroflex-Plainview ACT4808N is a monolithic transceiver design which provides full compliance with Macair  
(A-3818, A-4905, A-5232 and A-5690) and MIL-STD-1553A/B data bus requirements and can be considered a  
"Universal" Transceiver.  
The dual channel transceiver performs the front-end analog function of inputting and outputting data through a  
transformer to the MIL-STD-1553 or Macair data bus.  
Design of this transceiver reflects particular attention to active filter performance. This results in low bit and word  
error rate with superior waveform purity and minimal zero crossover distortion. The ACT4808N series active  
transmit filter design has additional high frequency roll-off to provide the required Macair low harmonic distortion  
waveform without increasing the pulse delay characteristics significantly.  
Efficient transmitter electrical and thermal design provides low internal power dissipation and heat rise at high as  
well as low duty cycles. The receiver input threshold is set Internally.  
TRANSMITTER  
The Transmitter section accepts bi-phase TTL data at the input and when coupled to the data bus with a 1:1 transformer  
the data bus signal produced is 7.0 Volts typical P-P at Point A-A’ (See Figure 3 or 4). When both DATA and DATA inputs  
are held low or high, the transmitter output becomes a high impedance and is “removed” from the line. In addition, an  
overriding “INHIBIT" input provides for the removal of the transmitter output from the line. A logic “1” signal  
applied to the “INHIBIT” takes priority over the condition of the data inputs and disables the transmitter (See  
Transmitter Logic Waveform, Figure 1).  
The transmitter utilizes an active filter to suppress harmonics above 1 MHz to meet Macair specifications A-3818,  
A-4905, A-5232 and A-5690. The transmitter may be safely operated for an indefinite period at 100% duty cycle into  
a data bus short circuit (Point A-A’). The Transmitter may be safely operated for an indefinite period with the 1553  
bus (Point A) short circuited at 100% duty cycle.  
RECEIVER  
The Receiver section accepts bi-phase differential data at the input and produces two TTL signals at the output. The  
outputs are DATA and DATA, and represent positive and negative excursions of the input beyond a pre-determined  
threshold (See Receiver Logic Waveform, Figure 2).  
The internal threshold is nominally set to detect data bus signals exceeding 1.10 Vp-p and reject signals less than 0.6  
Vp-p when used with a 1:1 turns ratio transformer (See Figure 4 for transformer data and typical connection).  
A low level at the Strobe input inhibits the DATA and DATA outputs.  
SCD4808N Rev B  
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