- 您現(xiàn)在的位置：買賣IC網(wǎng) > PDF目錄376591 > DD-03182GP-900 Line Driver PDF資料下載
參數(shù)資料
| 型號(hào)： | DD-03182GP-900 |
| 英文描述： | Line Driver |
| 中文描述： | 線路驅(qū)動(dòng)器 |
| 文件頁(yè)數(shù)： | 2/12頁(yè) |
| 文件大?。?/td> | 221K |
| 代理商： | DD-03182GP-900 |
GENERAL
The ARINC 429 standard is widely used in the civil aerospace
market (commercial aircraft). ARINC 429 operates at either 12
to 14.5 or 100 kbits on a simplex bus. A simplex bus is one on
which there is only one transmitter but multiple receivers (up to a
maximum of 20 in the case of 429). If receipt of a message by a
given sink R(n) is required by the source T, a separate bus with
R(n) as the source and T as the sink is required. To those
designers who focus on military systems, a simplex bus may
seem cumbersome, but it can be readily certified for civil aircraft.
Communications on 429 buses use 32-bit words with odd parity.
The waveform is a bipolar return to zero with each bit lasting
either 70 or 83μs ±2.5 percent, or 10μs, ±2.5 percent, depend-
ing on whether the bus is low- or high-speed. A low-speed bus
is used for general purpose, low critical applications. A high-
speed bus is used for transmitting large quantities of data or
flight critical information.
ARINC 429 imposes relatively modest and readily achievable
performance demands on the hardware. FIGURE 2 is a general
schematic of a 429 bus.
The transmitter output impedance
should be in the range of 75 to 85
, equally divided between the
two leads. The output voltage, V
o
, is 10 V and is generated by
imposing equal but opposite polarity voltages on the two leads.
The null voltage is 0.5 V. For the receiver, the input resistance
shall be greater than 12,000
and the input differential capaci-
tance and the capacitance to ground shall, in both cases, be less
than 50 pF. The 12,000
minimum input resistance ensures
that up to 20 receivers can be on the bus without overloading it
and minimizes receiver interaction under fault conditions. To pre-
clude continued receiver operation in a lead-to-ground fault con-
dition, 429 has established the range of acceptable receiver volt-
age levels to be +6.5 to +13.0 V and -6.5 to -13.0 V and null lev-
els from +2.5 to -2.5 V. Any signals falling outside of these lev-
els will be ignored. Also note that a lead-to-ground fault will pro-
duce a differential voltage swing up 5.5 V. FIGURE 4 shows the
waveforms required by 429 and permissible levels for transmitter
and receiver voltages.
2
A
B
Transmitter
Shield
Signal Leads
To Other Receivers
(max. total of 20)
Receiver
A
B
FIGURE 2. GENERALIZED 429 BUS
Notes:
1. Both outputs can be shorted to ground or to each other, at +25°C ambient tem-
perature.
2. Both outputs are fused between 0.5 Amp DC and 1.0 Amp DC to prevent an
overvoltage fault from coupling onto the system power bus.
3.Thermal resistance when mounted on a 4" x 4" FR4 PC board in a horizontal
position, still air.
TABLE 1. DD-03182 SPECIFICATIONS
PARAMETER
UNITS
ABSOLUTE MAXIMUM
RATINGS
VOLTAGE BETWEEN
PINS
+V and -V
V
1
and GND
V
and GND
Output Short-circuit
Protection
Output Overvoltage
Protection
Power Dissipation
MIN
TYP
MAX
V
V
V
See Note 1
See Note 2
See TABLE 2
40
7
6
POWER SUPPLY
REQUIREMENTS
+V
-V
V
1
V
REF
(for ARINC 429)
V
(for other applica-
tions)
VDC
VDC
VDC
VDC
VDC
11.4
-11.4
4.75
4.75
0
15
-15
5
5
16.5
-16.5
5.25
5.25
°C
°C
°C
°C
°C/W
°C/W
°C/W
°C/W
°C/W
°C
-55
-40
-65
15
75
95
115
130
+125
+85
+150
+300
175
in.
(mm.)
in.
(mm.)
in.
(mm.)
in.
(mm.)
0.344 x 0.158 x 0.069
(8.737 x 4.013 x 1.753)
0.785 x 0.291 x 0.160
(19.939 x 7.391 x 4.064)
0.413 x 0.300 x 0.082
(10.490 x 7.620 x2.080)
0.454 x 0.454 x 0.155
(11.53 x 11.53 x 3.94)
oz. (g.)
oz. (g.)
oz. (g.)
oz. (g.)
0.01 (0.28)
0.08 (2.26)
0.02 (0.57)
0.04 (1.13)
THERMAL
Operating Ambient
Temperature
Ceramic
Plastic
Storage Temperature
Lead Temperature
(localized 10 sec
duration)
Thermal Resistance:
Junction to Case
θ
jc
DD-03182DC
Junction to Ambient
θ
ja
(see Note 3)
DD-03182DC
DD-03182PP
DD-03182GP
DD-03182VP
Max.Junction Temperature
SIZE
DD-03182VP
DD-03182DC
DD-03182GP
DD-03182PP
WEIGHT
DD-03182VP
DD-03182DC
DD-03182GP
DD-03182PP
相關(guān)PDF資料 |
PDF描述 |
|---|---|
| DD-03182GP-900T | Line Driver |
| DD-03182GP-920 | Line Driver |
| DD-03182GP-920T | Line Driver |
| DD-03182PP-200 | Line Driver |
| DD-03182VP-200 | Line Driver |
相關(guān)代理商/技術(shù)參數(shù) |
參數(shù)描述 |
|---|---|
| DD03182PP20 | 制造商:未知廠家 制造商全稱:未知廠家 功能描述:Interface IC |
| DD03182PP30 | 制造商:未知廠家 制造商全稱:未知廠家 功能描述:Interface IC |
| DD03206VP900 | 制造商:未知廠家 制造商全稱:未知廠家 功能描述:Other/Special/Miscellaneous Converter |
| DD03232DC100 | 制造商:未知廠家 制造商全稱:未知廠家 功能描述:Interface IC |
| DD03232DC104 | 制造商:未知廠家 制造商全稱:未知廠家 功能描述:Interface IC |
發(fā)布緊急采購(gòu)，3分鐘左右您將得到回復(fù)。