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부품번호 4469 기능
기능 Dual Variable Amplitude Transceivers for H009
제조업체 Aeroflex Circuit Technology
로고 Aeroflex Circuit Technology 로고


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4469 데이터시트, 핀배열, 회로
ACT4469D
Dual Variable Amplitude Transceivers
for H009
Features
• World’s smallest and lowest standby power dual
variable amplitude H009 transceiver 1.25" x 0.61"
maximum ceramic package
• Dual transceiver with variable output amplitude
control meets McDonnell Douglas H009 data bus
specifications
• Lowest standby power
• Low power dissipation at full output power
• Operates with ±12V to ±15 and +5V power supplies
• Voltage source output for transmitter
• Monolithic construction
• Processed to commercial or screened to
MIL-STD-883 specs
• +10V Control line for transmitter amplitude
adjustment (See Figure 3)
• Packaging – Hermetic Ceramic
Non-conductive mounting surface
No package glass beads
Small size & light weight
TX DATA IN
TX DATA IN
TX INHIBIT
+5 V
+VCC
-VEE
GROUND
STROBE
DRIVER
Channel A
Channel A
Channel B
INPUT
AMP
TRANSMIT
ACTIVE
FILTER
CHANNEL B
VARIABLE
AMPLITUDE
OUTPUT
STAGE
VCONT
TX/RX
TX/RX
REFERENCE
CO MP.
RX DATA OUT
RECEIVE
ACTIVE
FILTER
CO MP.
RX DATA OUT
Block Diagram (without Transformer, Channel A shown)
CIRCUIT TECHNOLOGY
www.aeroflex.com
General Description
The Aeroflex Circuit
Technology model ACT4469D is a
next generation monolithic
transceiver which provides variable
amplitude in compliance with H009
data bus requirements with the
lowest standby power consumption
available using three DC power
supplies operation.
The dual channel model
ACT4469D performs the front-end
analog function of inputting and
outputting data through a
transformer to a H009 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 ACT4469D series active filter
design provides the required H009
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 and well as low duty
cycles.The receiver input threshold
is set internally.
Variable amplitude is adjusted
with factory preset 0–10Vdc control
line at 2 mA maximum input current
at 10 Volts.
Transmitter
The Transmitter section
accepts complementary TTL data
at the input, and when coupled to
the data bus with a 1:1 transformer,
isolated on the transceiver side with
two 34 ohm fault isolation resistors,
and loaded by a 175 ohm
termination, the data bus signal
produced is 20 Volts nominal P-P at
eroflex Circuit Technology – Data Bus Modules For The Future © SCD4469D REV A 5/21/01




4469 pdf, 반도체, 판매, 대치품
Electrical Characteristics – Receiver Section 1/ 2/
Parameter
Condition Symbol Min Typ Max Unit
Differential Voltage Range 3/
Pt. A - A’
VIDR
-
20 V peak
Common Mode Rejection Ratio 3/
-
CMRR 45 -
-
dB
Strobe Characteristics (Logic "0" inhibits output) (NOTE: If not used, a 1K pullup to 5V is recommended)
"0" Input Current
VS = 0.4 V
IIL
- -0.2 -0.4
mA
"1" Input Current
VS = 2.7V
IIH
- 1 +40 µA
"0" Input Voltage
-
VIL
- - 0.7
V
"1" Input Voltage
-
VIH 2.0 - -
V
Strobe Delay (turn-on)
-
tSD(ON)
- 90 150
nS
Strobe Delay (turn-off)
-
tSD(OFF)
-
90 150
nS
Threshold Characteristics (Sinewave input )
Input Threshold Voltage, Pt. A - A’ Figure 5
1MHz
VTH
1.5 2.0 3.0
Vp-p
Output Characteristics, RX DATA and RX DATA
"1" State
"0" State
Delay (average), from differential input zero
crossings to RX DATA and RX DATA output
50% points
IOH = -0.4 mA
IOL = 4 mA
6/
VOH
VOL
tDRX
2.5 3.6
-
- 0.35 0.5
- 300 450
V
V
nS
Power Supply Currents Per Channel 1/ 2/
VCC = +12V to +15V, VEE = -12V to -15V, VL = +5V
Duty Cycle
Condition
Symbol Typ Max Unit
Transmitter Standby
25% 3/
50%
Pt. A - A’
ZO = 175 Ω,
VO = 21 VPK-PK
Figure 5
ICC 6 10
IEE 16 25
IL 19 25
ICC 26 35
IEE 35 45
IL
19 25
mA
ICC 45 55
IEE 54 65
IL 19 25
100%
ICC 84 120
IEE 92 130
IL 20 25
Notes:
1. VCC = +15Volts ±0.75V, VEE = -15Volts ±0.75V, VIL = +5Volts ±0.5V, Tc = -55°C to +125°C, unless otherwise specified.
2. All typical values are measured at +25°C.
3. Characteristics guaranteed by design, not production tested.
4. Power ON/OFF, measured 1MHz at Point A-A’ Figure 4.
5. At point A-A’ on Figure 4 or 5, 2.5 µS after midpoint crossing of the parity bit of the last word.
6. This test is peformed while the Transceiver is reading its own transmission. This condition is called "Wraparound". Standard TTL
loads applied to RX DATA Outputs.
Aeroflex Circuit Technology
4 SCD4469D REV A 5/21/01 Plainview NY (516) 694-6700

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