Specifications

EMC-CS-2009.1

February 11, 2010

9.0 Conducted Emissions: CE 421

These requirements are applicable to the following component categories:

Electronic Modules: A, AS, AM, AX, AY

Electric Motors: EM

9.1 Requirement

Conducted voltage emissions on all component power circuits shall not exceed the requirements listed in Table 9-1.

Figure 9-1: CE 421 Conducted Emissions Requirements

Frequency Range (kHz) Limits (dBuV)*

10 - 20 111

20 - 150

⎟

⎠

⎞

⎜

⎝

⎛

−

40111

Log

150

100

110

120

kHz

dBuV

10010

* f= frequency in kHz

9.2 Test Verification and Test Setup

The test setup is identical to that used for CE 420 except only one Artificial Network is used regardless of how the DUT is

grounded in the vehicle. The setup is shown in Figure 9-1. If the DUT has separate power circuits, separate tests shall be

performed on each circuit. Circuits not being tested shall be connected directly to an automotive battery. This requirement

may be waived if the multiple circuits are used only meet the operating current demands of the DUT (e.g. single power

circuit, but with multiple connector pins). Under these conditions, all power circuits are tied to the artificial network.