Specifications

PL 3120/PL 3150/PL 3170 Power Line Smart Transceiver Data Book 229
56
The output noise masks shown in Chapter 5 are satisfied using measurements taken over the full range
of anticipated loads.
Design and Test for Electromagnetic Compatibility (refer to Chapter 6)
57
Product enclosure is made from the following material(s) _____________________________
Method of ESD mitigation is _____
A) The product is sealed to prevent static discharges from reaching sensitive circuitry.
B) A path is provided for ESD currents to be shunted around sensitive circuitry.
58
There are no traces running through the reference layout area that are not associated with the reference
circuitry.
59
Digital or clock signals outside the reference layout area are >2mm from critical nets TXOUT, RXIN,
RXCOMP, TX2, TX3, XIN and XOUT, assuming an intervening guard ground (>10mm if there is no
intervening guard ground).
60 Conducted emissions testing was performed using a 50Ω//(50μH+5Ω) Line Impedance Stabilization
Network (LISN) as specified in CISPR Publication 16.
61
For conducted emission measurements a Rohde and Schwarz R&S EZ-25 150kHz high-pass filter (or
equivalent) was used between the LISN and the measuring receiver.
62
For conducted emissions testing the appropriate attenuator is used to ensure that the transceiver’s
transmit signal does not overload the measuring instrument.
63
The residual noise floor of the entire conducted emissions measurement setup has been verified to be at
least 10dB below the specification limit (i.e., a noise floor less than 38dBμV for FCC measurements, and
a noise floor less than 36dBμV for CENELEC EN 50065-1 measurements).
64
Proper quasi-peak and average detectors in compliance with CISPR Publication 16 are used for
conducted emissions testing (although measurements with a peak detector are common, the limits
specified by FCC Section 15.107 and by CENELEC EN 50065-1 are for quasi-peak and average
detectors only).
65
Testing of conducted emissions is preformed with the proper bandwidth filters of 200Hz for frequencies
below 150kHz and 9kHz for frequencies above 150kHz.
66
Compliance with the appropriate conducted emissions regulation was verified in accordance with
checklist items 60 through 65.
67
If capacitors are added from line to neutral for EMI suppression these capacitors meet the requirements
of Table 6.1.
68
For products designed to prevent static discharges from reaching sensitive circuitry by means of a sealed
enclosure, the creepage path from all points of entry to any internal conductive elements is ≥1cm.
69
User accessible circuitry with <1cm creepage path to conductive elements have explicit diode clamping
to shunt ESD currents from that circuitry to earth ground using a path that does not pass through
sensitive circuitry (including the PL Smart Transceiver Reference circuitry).
70 The circuit design includes dedicated 0.1μF V
DD5
bypass capacitor(s) mounted directly adjacent to each
group of ESD protection diodes.
71
Compliance with IEC 61000-4-2 Electromagnetic Compatibility, Part4: Testing and measurement
techniques – Section 2 Electrostatic discharge immunity test has been verified.
Communication Performance Verification (refer to Chapter 7)
72
Compliance with the communication performance verification requirements of Chapter 7 has been
verified.