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Schwarzbeck CDN HDMI...
150 kHz … 230 MHz Suitable for...

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Schwarzbeck CDN HDMI Coupling Decoupling Network

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150 kHz … 230 MHz
Suitable for immunity testing on HDMI lines
For conducted common mode immunity testing according to IEC 61000-4-6
Intended for measurements on device with a shielded 19- pin HDMI interface

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Schwarzbeck CDN HDMI Coupling Decoupling Network
150 kHz … 230 MHz
Suitable for immunity testing on HDMI lines
For conducted common mode immunity testing according to IEC 61000-4-6
Intended for measurements on device with a shielded 19- pin HDMI interface
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Test Equipment Description

The Schwarzbeck CDN HDMI is part of the coupling decoupling network series for conducted common mode immunity testing according to IEC 61000-4-6. The CDN HDMI is compliant to IEC 61000-4-6 figure D.1 and is suitable for immunity testing on HDMI lines.

The CDN HDMI is intended for measurements on devices with a shielded 19- pin HDMI interface, such as those used for PC monitors and televisions. The frequency range is from 150 kHz to 230 MHz. The circuitry is shown in Fig. 4.

All CDNs comply to the requirements of IEC 61000-4-6. Each CDN comes with individually measured data and a calibration certificate for the common mode impedance and the voltage division factor. Further typical data for the phase (not normative) can be found in fig. 2.

A variety of calibration adapters and other accessories are available as option. With the two included adapters SA HDMI in conjunction with the optional series resistor SR100-6W, the required spacing of 30 mm is obtained as depicted in Fig. 9 of IEC 61000-4-6.

The connection to ground can be accomplished using the ground plane of the CDN. Additionally there is a M4 thread located at the AE side to ground as well as a 4 mm socket to connect the device to ground.

Fig. 1: typ. EuT Common Mode Impedance - Schwarzbeck CDN HDMI Coupling Decoupling Network

Fig. 1: typ. EuT common mode impedance

Fig. 2: typ. Phase EuT-port, (common mode) - Schwarzbeck CDN HDMI Coupling Decoupling Network

Fig. 2: typ. Phase EuT-port, (common mode)

Fig. 3: typ. voltage division factor RF-port to EuT-port - Schwarzbeck CDN HDMI Coupling Decoupling Network

Fig. 3: typ. voltage division factor RF-port to EuT-port

Fig. 4: principal circuitry CDN HDMI - Schwarzbeck CDN HDMI Coupling Decoupling Network

Fig. 4: principal circuitry CDN HDMI

Schwarzbeck CDN HDMI Specifications
Frequency range	150 kHz … 230 MHz
Common mode impedance	150 kHz–24 MHz: 150 Ω ±20 Ω 24 MHz–80 MHz: 150 Ω +60 Ω / -45 Ω 80 MHz-230 MHz: 150 Ω ±60 Ω
Max. RF-test voltage (emf)	30 V
Max. RF-input-power	6 W (continuous)
RF-input-connector	50 Ω BNC (female)
Voltage division factor RF-input – EuT-port	10 dB 150 kHz – 80 MHz: ±1 dB 80 MHz – 230 MHz: +3 dB / -2 dB
Housing Material	Aluminium
Housing dimensions	266 x 105 x 108 mm
Weight	ca. 1985 g
EuT, AE Connectors	HDMI female
Included accessories	SA HDMI
Ground Adapter	(one unit included by default)
Optional accessories: 50 Ω to 150 Ω adapter	SR100-6W