AC164142 Microchip Technology, AC164142 Datasheet - Page 18

• Manufacturer Part Number: AC164142
• Description: Consumer-band BPSK 7.2kbps PLM PICtail Plus Daughter Board Other
• Manufacturer: Microchip Technology
• Series: PICtail™ Plusr

Specifications of AC164142

• Kit Application Type: Communication
• Silicon Family Name: DsPIC
• Kit Contents: 2x Power-Line Soft-Modem PICtail Plus Daughter Boards, 2x High Voltage Adapter Cables, Info Sheet
• Features: Operates On 5V And 9V
• Rohs Compliant: Yes
• Processor To Be Evaluated: dsPIC33F
• Processor Series: dsPIC33F
• Operating Supply Voltage: 5 V, 9 V
• Featured Product: AC164142 PICtail™ Plus Daughter Board
• Main Purpose: Interface, Power Line Transceiver
• Embedded: No
• Utilized Ic / Part: -
• Primary Attributes: AC Power Line Transceiver, BPSK 7.2 Kbps
• Secondary Attributes: Requires Explorer 16 Boards
• Lead Free Status / Rohs Status: Lead free / RoHS Compliant

Consumer-band BPSK 7.2 kbps PLM PICtail™ Plus Daughter Board User’s Guide
DS70656A-page 18
2.2.2
The transmit amplifier is used to implement flow control on the transmit path.
2.2.3
Output transistors are implemented in the push-pull configuration to amplify the
transmit signal before coupling the signal into the HV adapter cable.
2.2.4
The RCA connector is used to connect the daughter board to the HV adapter cable.
2.2.5
This jumper is used to select the dsPIC33F DSC device pin used for switching the
transmit amplifier. Changing this jumper setting will require appropriate changes in the
software. See
2.2.6
This jumper is used to select the dsPIC33F DSC device analog pin required to sample
the received signal from the power line. Changing this jumper setting will require
appropriate changes in the software. See
connections.
2.2.7
This transistor configured in the common-emitter configuration is used to implement a
tuned amplifier on the receive path.
2.2.8
This 2-stage band-pass filter provides high gain to the received signal while filtering
out power line noises and interference signals. The circuit is essentially a high-pass
filter with a very high gain. The gain bandwidth product limits the higher frequencies
(low-pass response), thereby resulting in a band-pass filter.
2.2.9
The transient voltage suppressor is used to protect the daughter board from high
voltage transients on the power line.
2.2.10
The daughter board connects to the Explorer 16 Development Board using edge
connector J3. The daughter board uses the following signals on the Explorer 16
Development Board PICtail Plus connector:
• +3.3V power
• +5V power
• +9V power
• Ground
• dsPIC33F DSC device Output Compare module signals (OC1-OC4)
• dsPIC33F DSC device ADC module input signals (AN8/AN9/AN16/AN17)
• One GPIO for HiZ signal (RG0/RG1/RF0/RF1).
Note:
Note:
Transmit Amplifier (U1A)
Output Transistors (T5, T6)
RCA Connector (CON1)
HiZ Select Jumper (JP2)
ADC Input Select Jumper (JP3)
Tuned Amplifier Transistor (T9)
Receive Band-pass Filter (U2A, U2B)
Transient Voltage Suppressor (D7)
The output transistors should have good thermal contact with a large
copper plane on the PCB to dissipate heat.
The source code provided on the Microchip website uses the AN8 pin for
ADC input and the RF0 pin for the HiZ signal. Please ensure that jumpers
JP2 and JP3 are populated according to this configuration. Using other
jumper configurations will require suitable modifications in the source code.
Explorer 16 Development Board PICtail™ Connector (CON2)
Figure A-5
for the schematic of the jumper connections.
Figure A-5
for the schematic of the jumper
© 2011 Microchip Technology Inc.