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| 型号： | ACT4445 |
| 元件分类： | 网络接口 |
| 英文描述： | DATACOM, MIL-STD-1553 DATA BUS TRANSCEIVER, BCC64 |
| 封装： | BCC-64 |
| 文件页数： | 1/9页 |
| 文件大小： | 180K |
| 代理商： | ACT4445 |
SCD4445 Rev B
Features
Transceiver meets MIL-STD-1553A & B
Bipolar Supply ±15V, Logic Supply +5V
Replacement for ACT4487
Current source output
Monolithic construction
Designed for commercial, industrial and aerospace applications
Miniature Chipscale Package Bumped Chip Carrier (BCC++)
DESCRIPTION
The Aeroflex Plainview ACT 4445 is a monolithic transceiver that provides full compliance to MIL-STD-1553A/B
requirements in a small package, with low power consumption.
The ACT 4445 series performs the front-end analog function of inputting and outputting data through a transformer
to the MIL-STD-1553 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. Efficient transmitter electrical and
thermal design provides low internal power dissipation and heat rise at high as well as low duty cycles.
TRANSMITTER
The Transmitter section accepts bi-phase TTL data at the input and when coupled to the data bus with a 1.4:1
transformer the data bus signal produced is 7.5 Volts typical P-P at Point 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 may be safely operated for an indefinite
period with the 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 Waveforms - Figure 2).
The pre-set internal thresholds will detect data bus signals, Point A Figure 3 or 4, exceeding 1.20 Volts P-P and reject
signals less than 0.6 Volts P-P when used with a transformer (See Figure 3 or 4 for transformer data and typical
connection).
A low level at the RX Strobe input inhibits the DATA and DATA outputs. If unused RX Strobe is internally pulled
high.
Note: BCC++ and Bumped Chip Carrier are Trademarks of Fujitsu Ltd.
ACT4445 Transceiver
Standard Products
May 10, 2005
www.aeroflex.com/Avionics
for MIL-STD-1553 in a Chipscale Package
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相关代理商/技术参数 |
参数描述 |
|---|---|
| ACT4453 | 制造商:AEROFLEX 制造商全称:AEROFLEX 功能描述:ACT 4453 / 4463 SINGLE SUPPLY TRANSCEIVERS FOR MIL-STD-1553/1760 |
| ACT4453-2 | 制造商:AEROFLEX 制造商全称:AEROFLEX 功能描述:ACT 4453 / 4463 SINGLE SUPPLY TRANSCEIVERS FOR MIL-STD-1553/1760 |
| ACT4454 | 制造商:AEROFLEX 制造商全称:AEROFLEX 功能描述:ACT 4454 / 4460 Single Supply Transceivers for MIL-STD-1553A/B & MacAir A3818, A4905, A5232 & A5690 |
| ACT4455 | 制造商:AEROFLEX 制造商全称:AEROFLEX 功能描述:ACT 4455 / 4459 SINGLE SUPPLY TRANSCEIVERS FOR MIL-STD-1553/1760 |
| ACT4455YH-T | 制造商:ACTIVE-SEMI 制造商全称:Active-Semi, Inc 功能描述:36V/5A Step Down DC/DC Converter |
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