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參數(shù)資料
| 型號： | HI-1565 |
| 廠商： | Holt Integrated Circuits |
| 英文描述： | 5V Monolithic Dual Transceivers |
| 中文描述： | 5V的單片雙收發(fā)器 |
| 文件頁數(shù)： | 2/9頁 |
| 文件大?。?/td> | 171K |
| 代理商： | HI-1565 |
PIN DESCRIPTIONS
FUNCTIONAL DESCRIPTION
PIN
SYMBOL
FUNCTION
DESCRIPTION
(DIP/ESOIC)
1
VDDA
power supply
+5 volt power for channel A
2
BUSA
analog output
MIL-STD-1533 bus driver A, positive signal
3
analog output
MIL-STD-1553 bus driver A, negative signal
4
RXENA
digital input
Receiver A enable. If low, forces RXA and
low (HI-1565) or High (HI-1566)
5
GNDA
power supply
Ground for channel A
6
VDDB
7
BUSB
9
RXENB
10
GNDB
11
12
RXB
digital output
Receiver B output, non-inverted
13
TXINHB
digital input
Transmit inhibit, channel B. If high BUSB,
disabled
14
TXB
digital input
Transmitter B digital data input, non-inverted
15
digital input
Transmitter B digital data input, inverted
16
digital output
BUSA
RXA
BUSB
TXB
RXA
power supply
+5 volt power for channel B
analog output
MIL-STD-1533 bus driver B, positive signal
8
analog output
MIL-STD-1553 bus driver B, negative signal
digital input
Receiver B enable. If low, forces RXB and
low (HI-1565) or High (HI-1566)
power supply
Ground for channel B
digital output
Receiver B output, inverted
Receiver A output, inverted
17
RXA
digital output
Receiver A output, non-inverted
18
TXINHA
digital input
Transmit inhibit, channel A. If high BUSA,
disabled
19
TXA
digital input
Transmitter A digital data input, non-inverted
20
digital input
Transmitter A digital data input, inverted
BUSB
RXB
RXB
BUSA
TXA
The HI-1565 family of data bus transceivers contain differ-
ential voltage source drivers and differential receivers.
They are intended for applications using a MIL-STD-1553
A/B data bus. The device produces a trapezoidal output
waveformduringtransmission.
Data input to the device’s transmitter section is from the
complementary CMOS /TTL inputs TXA/B and
The transmitter accepts Manchester II bi-phase data and
convertsittodifferentialvoltageson
The transceiver outputs are either direct or transformer
coupled to the MIL-STD-1553 data bus.
methods produce a nominal voltage on the bus of 7.5 volts
peaktopeak.
.
Both coupling
TRANSMITTER
TXA/ .
BUSA/Band
/
The transmitter is automatically inhibited and placed in the
high impedance state when both TXA/B and
ther at a logic “1” or logic “0” simultaneously.Alogic “1” ap-
plied to the TXINHA/B input will force the transmitter to the
highimpedancestate,regardlessofthestateofTXA/Band
/
TXA B.
TXA/ are ei-
BUSA B
RECEIVER
The receiver accepts bi-phase differential data from the
MIL-STD-1553 bus through the same direct or transformer
coupled interface as the transmitter. The receiver’s differ-
ential input stage drives a filter and threshold comparator
that produces CMOS/TTL data at the RXA/B and
outputpins.
/
RXA B
Each set of receiver outputs can be independently forced
to a logic "0" (HI-1565) or logic “1” (HI-1566) by setting
RXENAorRXENBlow.
Adirect coupled interface (see Figure 2) uses a 1:2.5 ratio
isolation transformer and two 55 ohm isolation resistors
betweenthetransformerandthebus.
In a transformer coupled interface (see Figure 3), the
transceiver is connected to a 1:1.79 isolation transformer
which in turn is connected to a 1:1.4 coupling transformer.
The transformer coupled method also requires two
coupling resistors equal to 75% of the bus characteristic
impedence (Zo) between the coupling transformer and the
bus.
MIL-STD-1553BUSINTERFACE
HI-1565, HI-1566
HOLT INTEGRATED CIRCUITS
2
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PDF描述 |
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| HI-1565CDI | 5V Monolithic Dual Transceivers |
| HI-1565CDM | 5V Monolithic Dual Transceivers |
| HI-1565CDT | 5V Monolithic Dual Transceivers |
| HI-1565PCI | 5V Monolithic Dual Transceivers |
| HI-1565PCIF | 5V Monolithic Dual Transceivers |
相關(guān)代理商/技術(shù)參數(shù) |
參數(shù)描述 |
|---|---|
| HI-1565_09 | 制造商:HOLTIC 制造商全稱:Holt Integrated Circuits 功能描述:5V Monolithic Dual Transceivers |
| HI-1565_13 | 制造商:HOLTIC 制造商全稱:Holt Integrated Circuits 功能描述:MIL-STD-1553 / 1760 5V Monolithic Dual Transceivers |
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