POWER RS-422 TRANSCEIVERS 422D/Q10RH CONFIGURATION TYPICAL O

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POWER RS-422 TRANSCEIVERS 422D/Q10RH CONFIGURATION TYPICAL O

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SPACE PRODUCTS
POWER RS-422 TRANSCEIVERS
422D/Q10RH
CONFIGURATION TYPICAL OPERATING CIRCUIT
FEATURES:
four tranceivers device Single 3.3V Supply without Charge Pump! Interoperable with Logic skew Low-Current Shutdown Mode +12V Common-Mode Input Voltage Range Full-Duplex Operation Current-Limiting Thermal Shutdown Driver Overload Protection Total dose hardened Krads (Si) depending orbit duration mission Single Event Latch-up Immune Available RT-10, RT-25, RT-40 versions
DESCRIPTION:
Space Electronics' 422D10RH 422Q10RH dual quad, power, full duplex transceivers RS-422 RS-485 space communications. Each device contains multiple drivers receivers. 422D10RH 422Q10RH slew rate limited, allowing data rates Mbps. drivers short-circuit current limited protected against excessive power dissipation thermal shut-down circuitry that places driver outputs into high impedance state. receiver inputs have fail-safe feature that guarantees logic-high output input open circuited. 422D10RH 422Q10RH transceivers feature typical Krads (Si) total dose tolerance depending upon orbit duration mission. 422D10RH 422Q10RH intended environments encountered high reliability spacecraft applications. patented radiation-hardened RAD-PAK® technology incorporates radiation shielding microcircuit package. Capable surviving in-space environments, 422D10RH 422Q10RH ideal satellite, spacecraft, space probe missions.
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APPLICATIONS:
High level space raiation environments Deep space missions
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(858) 452-4167 Fax: (858) 452-5499 www.spaceelectronics.com
©1999 Space Electronics Inc. rights reserved.
422D/Q10RH
POWER RS-422 TRANSCEIVERS
TABLE 422D/Q10RH ABSOLUTE MAXIMUM RATINGS
PARAMETER Supply Voltage Control Input Voltage Driver Input Voltage Driver Output Voltage Receiver Input Voltage Receiver Output Voltage Operating Temperature Ranges Storage Temperature Range Lead Temperature (soldering, 10sec)
SYMBOL
UNIT
-0.3 -0.3 -7.5 -7.5 -0.3
12.5 12.5 (VCC 0.3) +160 +300
TABLE 422D/Q10RH ELECTRICAL CHARACTERISTICS (VCC 3.3V 0.3V, TMIN TMAX, UNLESS OTHERWISE NOTED. TYPICAL VALUES +25°C)
PARAMETER Differential Driver Output SYMBOL CONDITIONS (RS-422), Figure (RS-485), Figure (RS-485), 3.3V, Figure Change Magnitude Driver Differential Output Voltage Complementary Output States Driver Common-Mode Output Voltage Change Magnitude Common-Mode Output Voltage Input High Voltage Input Voltage Logic Input Current Input Current (A,B) Output Leakage (Y,Z) Output Leakage (Y,Z) Shutdown Mode Receiver Differential Threshold Voltage Receiver Input Hysteresis Receiver Output High Voltage Receiver Output Voltage
1027.99Rev0
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-0.2
UNIT
100, Figure
100, Figure 100, Figure 3.6V, 3.6V, 3.6V, -12V 3.6V, 3.6V, -12V 3.6V, IOUT -1.5mA, 200mV, Figure IOUT 2.5mA, 200mV, Figure
-2.0
-0.8 -0.8
IIN1 IIN2
-0.2 -VCC
-0.4
data sheets subject change without notice
©1999 Space Electronics Inc. rights reserved.
422D/Q10RH
PARAMETER Three-state (High-Z) Output Current Receiver Receiver Input Resistance Supply Current SYMBOL IOZR CONDITIONS 3.6, VOUT -7V<VCM< load, VCC, load, Supply Current Shutdown Mode Driver Short-circuit Output Current Receiver Short-circuit Output Current ISHDN IOSD IOSR VCC, VOUT VOUT -12V changes VOC, respectively, when input changes state.
POWER RS-422 TRANSCEIVERS
TABLE 422D/Q10RH ELECTRICAL CHARACTERISTICS (VCC 3.3V 0.3V, TMIN TMAX, UNLESS OTHERWISE NOTED. TYPICAL VALUES +25°C)
-1.1 0.95 0.002 -MAX -2.2 -250 UNIT
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TABLE DRIVER SWITCHING CHARACTERISTICS
PARAMETER Driver Differential Output Delay Driver Differential Output Transition Time Driver Propagation Delay, Low-to-High Level |tPLH tPHL| Driver Propagation Delay Skew DRIVER OUTPUT ENABLE/DISABLE TIMES Driver Output Enable Time Level Driver Output Enable Time High Level Driver Output Disable Time from High Level Driver Output Disable Time from Level Driver Output Enable Time from Shutdown Level Driver Output Enable Time from Shutdown High Level Measured |tPLH tPHL (Y)| |tPLH tPHL (Z)|. tPZL tPZH tPHZ tPLZ tPSL tPSH 110, Figure 110, Figure 110, Figure 110, Figure 110, Figure 110, Figure SYMBOL tPLH tPDS
CONDITIONS Figure Figure Figure Figure Figure
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422D/Q10RH
(VCC 3.3V, +25°C) PARAMETER Time Shutdown Receiver Propagation Delay, Low-to-High Level Receiver Propagation Delay, High-to-Low Level |tPLH tPHL| Receiver Propagation Delay Skew Receiver Output Enable Time Level Receiver Output Enable Time High Level Receiver Output Disable Time from High Level Receiver Output Disable Time from Level Receiver Output Enable Time from Shutdown Level Receiver Output Enable Time from Shutdown High Level SYMBOL tSHDN tRPLH tRPHL tRPDS tPRZL tPRZH tPRHZ tPRLZ tPRSL tPRSH 3.0V, =15pF, Figure 3.0V, =15pF, Figure 3.0V, =15pF, Figure =15pF, Figure =15pF, Figure =15pF, Figure =15pF, Figure =15pF, Figure =15pF, Figure CONDITIONS
POWER RS-422 TRANSCEIVERS
TABLE RECEIVER SWITCHING CHARACTERISTICS
-TYP 1400 1400 UNIT
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422D/Q10RH
OUTPUT CURRENT RECEIVER OUTPUT VOLTAGE
OUTPUT CURRENT (mA) OUTPUT CURRENT (mA) OUTPUT VOLTAGE
POWER RS-422 TRANSCEIVERS
TYPICAL OPERATING CHARACTERISTICS
(VCC +3.3V, +25°C UNLESS OTHERWISE SPECIFIED.)
OUTPUT CURRENT RECEIVER OUTPUT HIGH VOLTAGE
3.30 OUTPUT HIGH VOLTAGE 3.25 3.20 3.15 3.10 3.05 3.00 OUTPUT HIGH VOLTAGE TEMPERATURE
RECEIVER OUTPUT HIGH VOLTAGE TEMPERATURE
1.5mA
RECEIVER OUTPUT VOLTAGE TEMPERATURE
OUTPUT VOLTAGE TEMPERATURE OUTPUT CURRENT (mA) 2.5mA
DRIVER OUTPUT CURRENT DIFFERENTIAL OUTPUT VOLTAGE
DIFFERENTIAL OUTPUT VOLTAGE
DRIVER DIFFERENTIAL OUTPUT VOLTAGE vs.TEMPERATURE
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DIFFERENTIAL OUTPUT VOLTAGE
TEMPERATURE
OUTPUT CURRENT DRIVER OUTPUT VOLTAGE
OUTPUT CURRENT (mA) OUTPUT CURRENT (mA) OUTPUT VOLTAGE -100
OUTPUT CURRENT DRIVER OUTPUT HIGH VOLTAGE
SUPPLY CURRENT TEMPERATURE
DON'T CARE SUPPLY CURRENT (mA)
VCC,
OUTPUT HIGH VOLTAGE TEMPERATURE
SHUTDOWN CURRENT TEMPERATURE
SHUTDOWN CURRENT (nA) TEMPERATURE
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422D/Q10RH
TABLE DESCRIPTION
NAME FUNCTION Connect-not internally connected
POWER RS-422 TRANSCEIVERS
Receiver Output. 200mV, will high; 200mV, will low. Receiver Output Enable. enabled when low; high impedance when high. high low, device will enter low-power shutdown mode. Driver Output Enable. driver outputs enabled bringing high. They high impedance when low. high low, device will enter low-power shutdown mode. driver outputs enabled, parts function line drivers. While they high impedance, they function line receivers low. Driver Input. forces output output high. Similarly, high forces output high output low. Ground Non-inverting Driver Output Inverting Driver Output Non-inverting Receiver Input Non-inverting Driver Output Non-inverting Receiver Input Inverting Receiver Input Inverting Driver Output Inverting Receiver Input Positive Supply: 3.0V 3.6V
Memory
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422D/Q10RH
FIGURE DRIVER
POWER RS-422 TRANSCEIVERS
FIGURE DRIVER WITH VARYING COMMON-MODE VOLTAGE
RL/2
RL/2
+12V
FIGURE RECEIVER
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FIGURE DRIVER DIFFERENTIAL OUTPUT DELAY TRANSITION TIMES
1.5V Generator
(see Figure Note
1.5V
]=2.0V
-2.0V
15pF
(see Figure Note
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422D/Q10RH
POWER RS-422 TRANSCEIVERS
FIGURE DRIVER PROPAGATION TIMES
tPLH tPHL 1.5V 1.5V
Generator
(see Figure Note
tPHL tPHZ
15pF
(see Figure Note
1.5V
FIGURE DRIVER ENABLE DISABLE TIMES (tPZH, tPSH, tPHZ)
50pF
(see Figure Note
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1.5V
1.5V
tPZH
tPHZ 0.25V
Generator
(see Figure Note
1.5V
FIGURE DRIVER ENABLE DISABLE TIMES (tPZL, tPSL, tPLZ)
50pF Generator
(see Figure Note (see Figure Note
1.5V 1.5V tPSL tPLZ
0.25V
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©1999 Space Electronics Inc. rights reserved.
422D/Q10RH
Generator
(see Figure Note
POWER RS-422 TRANSCEIVERS
FIGURE RECEIVER PROPAGATION DELAY
15pF
(see Figure Note
1.5V tRPLH tRPHL 1.5V
1.5V
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©1999 Space Electronics Inc. rights reserved.
422D/Q10RH
+1.5V -1.5V
POWER RS-422 TRANSCEIVERS
FIGURE RECEIVER ENABLE DISABLE TIMES
(see Figure Note
Generator
(see Figure Note
1.5V tPRZH tPRSH OPEN CLOSED 1.5V tPRZL tPRSL 1.5V
CLOSED OPEN 1.5V
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1.5V
OPEN CLOSED 1.5V tPRLZ
1.5V
1.5V CLOSED OPEN -1.5V
1.5V tPRHZ
0.25V
0.25V
Figure Notes: input pulse supplied generator with following characteristices: 250kHZ, duty cycle, =6.0ns, includes probe stray capacitance.
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422D/Q10RH
LOW-POWER SHUTDOWN MODE
POWER RS-422 TRANSCEIVERS
low-power shutdown mode initiated bringing both high low. devices will shut down unless both driver receiver disabled (high impedance). shutdown, devices typically draw only supply current. these devices, tPSH tPSL enable times assume part low-power shutdown mode; tPZH tPZL enable times assume receiver driver disabled, part shut down.
DRIVER OUTPUT PROTECTION
Excessive output current power dissipation caused faults contention prevented mechanisms. foldback current limit output stage provides immediate protection against short circuits over whole common-mode voltage range (see Typical Operating Characteristics). addition, thermal shutdown circuit forces driver outputs into high-impedance state temperature rises excessively.
LINE LENGTH DATA RATE
RS-485/RS-422 standard covers line lengths 4000 feet. line lengths greater than 4000 feet, Figure Figure shows system differential voltage parts driving 4000 feet 26AWG twisted-pair wire 125kHz into loads.
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FIGURE DRIVER PROPAGATION
FIGURE SYSTEM DIFFERENTIAL VOLTAGE 125KHZ DRIVING 4000 FEET CABLE
5V/div
2V/div
2V/div
1V/div
5V/div
1V/div 20ns/div
20µs/div
FIGURE RECEIVER PROPAGATION DELAY DRIVEN EXTERNAL RS485 DEVICE
1V/div
1V/div
2V/div
20ns/div
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422D/Q10RH
POWER RS-422 TRANSCEIVERS
FIGURE FULL-DUPLEX RS-485 NETWORK
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FIGURE LINE REPEATER
DATA
DATA
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422D/Q10RH
POWER RS-422 TRANSCEIVERS
Memory
TABLE
DIMENSION SYMBOL 0.128 0.015 0.004 0.472 0.287 -0.155 0.030 0.050 0.370 0.035 0.005 0.380 0.039 0.007 0.390 0.042 -NOM 0.141 0.017 0.005 0.480 0.295 -0.160 0.068 0.154 0.022 0.009 0.488 0.303 0.333
F20-01 Note: dimensions inches.
1027.99Rev0
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©1999 Space Electronics Inc. rights reserved.
422D/Q10RH
Important Notice:
POWER RS-422 TRANSCEIVERS
These data sheets created using chip manufacturers published specifications. Space Electronics verifies functionality testing parameters either 100% testing, sample testing characterization. specifications presented within these data sheets represent latest most accurate information available date. However, these specifications subject change without notice Space Electronics assumes responsibility this information. Space Electronics' products authorized critical components life support devices systems without express written approval from Space Electronics. claim against Space Electronics Inc. must made within days from date shipment from Space Electronics. Space Electronics' liability shall limited replacement defective parts.
Memory
1027.99Rev0
data sheets subject change without notice
©1999 Space Electronics Inc. rights reserved.

POWER RS-422 TRANSCEIVERS 422D/Q10RH CONFIGURATION TYPICAL O

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