MD-001HRL [HALO]
Complete âOn-Boardâ Thinnet Solution;
| 型号： | MD-001HRL |
| 厂家： | 
HALO Electronics |
| 描述： | Complete âOn-Boardâ Thinnet Solution |
| 文件： | 总3页 (文件大小：675K) |
| 中文： | 中文翻译 | 下载： | 下载PDF数据表文档文件 |
“TnT” - Thinnet Transceiver
Complete “On-Board” Thinnet Solution
Product Features:
Conflict
RoHS
ꢀ
FREE
Compliant
ꢀ
ꢀ
ꢀ
ꢀ
Compliant with ANSI/IEEE802.3 and ISO8802-3
Standards for Thin Net
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DC/DC Converter.
Contains all Thin Net Transceiver Functions in
a Single 20-pin Package.
Squelch Circuits on All Signal Inputs to Elimi-
nate Noise
ꢀ
ꢀ
Heartbeat Function Enable/Disable
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Input
Voltage
Vee Ripple
(Max. @ 20MHz)
Input Current
Operating
Temp.
Storage
Temp.
Enable
Feature
Part Number
(max)
MD-001HRL
MD-002HRL
MD-003HRL
MD-004HRL
MD-012HRL
MD-013HRL
MDQ-001HRL
5V ±5%
100mVpp
100mVpp
100mVpp
100mVpp
100mVpp
100mVpp
40mVpp
225mA
0 to 70°C
0 to 70°C
0 to 70°C
0 to 70°C
0 to 70°C
0 to 70°C
0 to 70°C
-40 to +125°C
-40 to +125°C
-40 to +125°C
-40 to +125°C
-40 to +125°C
-40 to +125°C
-40 to +125°C
No
Yes
No
Yes
No
Yes
No
5V ±5%
3.3V ±5%
3.3V ±5%
12V ±5%
12V ±5%
5V ±5%
235mA
340mA
340mA
110mA
115mA
225mA
Notes:
1. Please contact the factory or representative for individual datasheets or additional information.
2. Surface mount options also available.
HALO’s Commitment to Long Term Availability
The transceiver chip inside of the HALO TnT module is the H83C92. Over the years, the IC industry has either discontin-
ued or announced End of Life (EOL) of the 83C92 ICs traditionally used in Thinnet applications. The IEEE802.3 compliant
H83C92 transceiver chip has been developed by HALO to provide long term availability of the TnT module family.
For additional information contact your local representative, or HALO’s support staff at (650) 903-3800 or info@haloelectronics.com
HALO’s “TnT” Thin Net Transceiver Modules
Typical Applications:
• Backplane Applications
• Network Interface Cards
• 10BASE-T Hub with 10BASE2 Interface
• 10BASE2 Repeaters
• Thin Net Transceivers
• Print Servers
• Applications Requiring “Optional” 10BASE2 Ports
Dimensions: inch [mm]
Description of Pin Functions
Pins 1 - 2 CD± Collision. A balanced 10MHz differential
output from the module to the station equip-
ment when a collision is detected, when exces-
sive data occurs (jabber) or during the SQE Test
(Heartbeat Test).
Pin 17 TXO Network Signal Transmitter. Connects
to the network COAX center conductor through
an internal 1N916 diode, and transmits all sig-
nals from the MCC to the network.
Pin 18 RXI Network Signal Receiver. Connects to the
network COAX center conductor, and receives
packet data and detects the collision voltage
levels.
Pins 3 - 4 RX± Receive Data. A balanced line driver
output from the module to the station equip-
ment providing received data detected on the
network.
Pin 20 CDS Collision Detect Sense. Connects directly
to the network shield and references the colli-
sion detection voltage level.
Pins 5 - 6 TX± Transmit Data. A balanced line receiver
input to the module from the station equipment
to drive transmit data onto the network.
Pin 9
VCC ±5% Input Supply. (Please refer to the
Module Descriptions)
Pin 10 GND Ground. Ground is referenced to the
VCC. (Do not connect this ground to CABLE
SHIELD since the COAX SHIELD must be iso-
lated from the station equipment).
Pin 11 VEE Negative Supply. Nominally -9 volts refer-
enced to coax shield ground.
Pin 12 NC No Connection. (Optional Enable feature
- Module is off when a “0” signal is supplied.
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plied).
Pin 16 HBE Heartbeat Enable. This input enables the
SQE (also called Heartbeat) Test when con-
nected to (isolated) ground and disables the
test when connected to VEE. This pin must be
connected to VEE for repeater applications.
For additional information contact your local representative, or HALO’s support staff at (650) 903-3800 or info@haloelectronics.com
HALO’s “TNT” Thin Net Transceiver Modules
“TNT” Application Notes
1. The HALO Electronics “TNT” family of modules is available with 3.3V, 5V, 8V or 12V input voltages. Care should be
taken to connect the module to the correct supply voltage.
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3. RXI and TXO (Pins 17 and 18) must be tied together externally at the BNC connector. The 1N916 diode is contained
within the TNT module.
4. For repeater applications, the SQE Test (Heartbeat Test) must be disabled. This is accomplished by connecting Pin 16
(HBE) to Pin 11 (VEE). For non-repeater applications Pin 16 (HBE) should be connected to isolated ground (CDS). It is not
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mum capacitor is also recommended for safety considerations.
6. The TNT module should be located as close to the BNC connector as possible. This will assure the lowest shunt ca-
pacitance. IEEE 802.3 requires a maximum of 8pF shunt capacitance. Please see paragraph 10.6.3 and Appendix C3.
7. A de-coupling capacitor between VCC and GND is helpful to minimize noise on the supply line.
ꢳꢄꢑꢆꢇꢄꢟꢻꢜꢄꢴꢡꢏꢹꢬꢘꢄꢤꢴꢄꢩꢆꢑꢃꢄꢔꢋꢓꢋꢔꢂꢃꢆꢍꢄꢂꢅꢄꢍꢉꢔꢆꢗꢗꢉꢁꢕꢉꢕꢡꢄꢬꢆꢍꢄꢍꢉꢓꢉꢋꢃꢉꢍꢄꢋꢓꢓꢑꢂꢔꢋꢃꢂꢆꢁꢅꢄꢆꢍꢄꢁꢆꢂꢅꢉꢄꢅꢉꢁꢅꢂꢃꢂꢩꢉꢄꢋꢓꢓꢑꢂꢔꢋꢃꢂꢆꢁꢅꢄꢋꢄꢅꢂꢗꢓꢑꢉꢄꢞꢂꢄ
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8. Additional surge protection components are recommended for applications where higher voltage static surge is a
concern. Please contact the factory for additional information.
HALO® Electronics is a leading supplier of high quality communication magnetics
ꢂꢁꢔꢑꢒꢕꢂꢁꢌꢄ ꢅꢂꢌꢁꢋꢑꢄ ꢃꢍꢋꢁꢅꢖꢆꢍꢗꢉꢍꢅꢘꢄ ꢙꢑꢃꢉꢍꢅꢘꢄ ꢚꢛꢜꢄ ꢔꢈꢆꢝꢉꢅꢘꢄ ꢞꢆꢟꢄ ꢓꢆꢇꢉꢍꢄ ꢃꢍꢋꢁꢅꢖꢆꢍꢗꢉꢍꢅꢘꢄ
DC/DC converters, and integrated Ethernet connectors. HALO’s leading edge
technology solutions are manufactured in ISO9001 and ISO14001 factories
offering high quality products at a competitive price.
2880 Lakeside Drive #116
Santa Clara, CA 95054
(650) 903-3800
www.haloelectronics.com
© Copyright 2014 HALO Electronics, Inc. All rights reserved.
Revised 4/2014 Download the latest version at www.haloelectronics.com/pdf/discrete-tnt.pdf
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