|
 |
 |
|
The Multi-Purpose Adaptor, Model No. TPA-MP-4R is used in four separate applications. These are as follows:
- Application 1 - Provides Eye measurement, EDID emulation, Vcc Power & Hot Plug support while measuring waveforms with an oscilloscope during HDMI physical layer compliance tests.
- Application 2- Serves as a CEC bridge for testing
Sink devices during CEC compliance testing. The TPA-MP-4R
can be used instead of the TPA-CEC-4R.
- Application 3 - Serves as a CEC bridge for testing
Source devices during CEC compliance testing. The
TPA-MP-4R can be used instead of the TPA-CEC-4R.
- Application 4 - Serves as a passive monitoring device
for the DDC, hot plug and 5V leads. The TPA-MP-4R
can be used instead of the TPA-ACA-3R.
|
|
|
|
|
|
|
Figure 1: Multi-Purpose Adaptor, Model No. TPA-MP-4R
|
Application 1 - Eye Measurement, EDID emulation, AVCC Power & Hot Plug Support
Using Tektronix Test Instruments
The 882CA provides EDID emulation and DDC, EDID, hot plug and CEC transaction monitoring. The TPA-MP-4R provides +3.3Vcc via the P40 2-wire cable. The TPA-MP-4R connects the 882CA HDMI Rx 1 to the Tek TPA-P-DI via P30 8-wire cable. TPA-P-DI connects Rx DDC, Hot Plug Detect and CEC to the source device under test. The following illustration depicts these connections.
|
|
Figure 2: Connections with Tektronix test instruments
|
Using Agilent Test Instruments
The 882CA provides EDID emulation and DDC, EDID, hot plug and CEC transaction monitoring. The TPA-MP-4R provides +3.3Vcc via the Pomona 5069 8-wire cable. The TPA-MP-4R connects the 882CA HDMI Rx 1 to the Agilent TPA-P via 5069 8-wire cable. TPA-P connects Rx DDC, Hot Plug Detect and CEC to the source device under test. The following illustration depicts these connections.
|
|
Figure 3: Connections with Agilent test instruments
|
Application 2 - CEC bridge device for HDMI sink testing
|
| |
|
|
Figure 4: Connections for CEC bridge device for HDMI sink testin
|
|
|
|
| Application 3 - CEC bridge device for HDMI source testing |
|
Figure 5: Connections for CEC bridge device for HDMI sink testing
|
Application 4 - Passive monitoring
The Auxiliary Channel Analyzer (ACA) can monitor DDC, EDID, hot plug transactions between a device under test and one of the 882's own internal HDMI ports in the emulation mode. The new TPA-MP-4R as well as the TPA-ACA-3R test point adapter allows the ACA to passively monitor DDC, EDID, hot plug transactions between the HDMI ports of two devices under test e.g. a set top box and an HDTV. The diagram below depicts how to connect the devices under test and the 882 to passively monitor transactions between two devices under test.
|
|
Figure 6: Passive monitoring between HDMI source and sink
|
| |
 |
|
|
