HI-1570PSI Holt Integrated Circuits, HI-1570PSI Datasheet
HI-1570PSI
Specifications of HI-1570PSI
Related parts for HI-1570PSI
HI-1570PSI Summary of contents
Page 1
... CMOS / TTL data suitable for inputting to a Manchester decoder. Each receiver has a separate enable input which can be used to force the output of the receiver to a logic “0“. To minimize the package size for this function, the transmitter outputs are internally connected to the receiver inputs so that only two pins are required for connection to each coupling transformer ...
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... CONT 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 TXA B / are ei- coupling resistors equal to 75% of the bus characteristic impedance (Zo) between the coupling transformer and the bus ...
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... RECEIVER RXA/B Receive Logic RXA/B Comparator RXENA/B TXA/B TXA/B BUSA/B - BUSA/B Vin (Line to Line) RXA/B RXA/B HI-1570 BUSA/B BUSA/B Input Filter Figure 1. Block Diagram TRANSMIT WAVEFORM - EXAMPLE PATTERN RECEIVE WAVEFORMS - EXAMPLE PATTERN HOLT INTEGRATED CIRCUITS 3 Data Bus Isolation Coupler Transformer Network ...
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... Supply Voltage -0 +5.5 V VDD....................................... 5V... ±5% 10 Vp-p Temperature Range +1.0 A Industrial Screening.........-40°C to +85°C Hi-Temp Screening........-55°C to +125°C 1.0 W 7mW/°C NOTE: 275°C for 10 sec. ratings or outside recommended operating conditions may cause permanent damage to the 175°C device. These are stress ratings only. Operation at the limits is not recommended. -65° ...
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... HI-1570 A SYMBOL CONDITION load V OUT (Measured at Point “A “ in Figure load V OUT (Measured at Point “A “ in Figure 3) V Differential, inhibited load V DYN (Measured at Point “A “ in Figure load V DYN (Measured at Point “A “ in Figure 3) R Differential, not transmitting OUT C 1 MHz sine wave ...
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... Slope = Vo ÷ V 6.0 6.0 4.5 4.5 3.0 3.0 1.5 1 1.0 Control Voltage - V Control Voltage - V Figure 4. Transmitter Output Amplitude (Vo HOLT INTEGRATED CIRCUITS HI-1570 Point “A ” 1:1.79 T 1:1.4 Isolation Coupling Transformer Transformer Point “A ” T 1.4:1 1.79:1 Isolation Transformer RXENA A& ...
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... HEAT SINK - ESOIC PACKAGE The HI-1570PSI/T/M all use a 20-pin thermally enhanced SOIC package. The package include a metal heat sink located on the bottom surface of the device. The heat sink should be soldered down to the printed circuit board for optimum thermal dissipation. The heat sink is also electrically isolated and may be soldered to any convenient power or ground plane ...
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... TO +125°C M YES RXENA = 0 RXENB = 0 PACKAGE DESCRIPTION RXA RXA RXB RXB PIN PLASTIC CHIP-SCALE LPCC (44PSC) not available with ‘M’ flow PIN PLASTIC ESOIC, Thermally Enhanced Wide SOIC with Heat Sink (20HWE) TEMPERATURE BURN FLOW RANGE IN -40°C TO +85°C ...
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... REVISION HISTORY Document Rev. Date Description of Change DS1570 F 09/26/08 Clarification of transmitter and receiver functions in Description, clarified available temperature ranges, and corrected a dimension in Recommended Transformers table. G 07/24/09 Correct typographical errors in package dimensions. HI-1570 HOLT INTEGRATED CIRCUITS 9 ...
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... TYP. (1.270 TYP.) .085 ±.009 (2.159 ± .229) .100 BSC (2.54) .017 ±.002 (.432 ±.051) HOLT INTEGRATED CIRCUITS 10 inches (millimeters) Package Type: 20HWE .290 typ (7.37) Bottom typ View Electrically isolated heat sink pad on bottom of package ...
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... PLASTIC CHIP-SCALE PACKAGE .276 BSC (7.00) .276 Top View BSC (7.00) .039 max (1.00) BSC = “Basic Spacing between Centers” is theoretical true position dimension and has no tolerance. (JEDEC Standard 95) PACKAGE DIMENSIONS .203 ± .006 (5.15 ± .15) Electrically isolated heat sink ...