CEA-909 appears to have chosen a legacy connector for the smart antenna interface. Its the old DEC MMJ, and while it was a common part years back (even Digikey stocked the Amp 5-555237-2) the offset modular plug has long since seen its days come and go. Fortunately Cxtec still has some, and they are clearanced priced too! On the other hand, Amp/Tyco has them listed as obsolete, and there are no drawings online. Its always hard to tell for sure without a drawing though, ie, if CEA went proprietary, perhaps the latch is offset on the other side. I sure hope not, although either way, tooling will be a pain for small quantities.

The pinout is as follows:

Pin 1 gnd

Pin 2 +12VDC, 150mA current limit

Pin 3 gnd

Pin 4 gnd

Pin 5 data

Pin 6 gnd

The data specs are as follows:

8Khz pwm

2200 ohm load

Logic 0  41.7usec

Logic 1  83.3usec

Voltage levels

low 0-1V

high 2.0-5.5V

recommended drive from convertor or TV is a NPN with a 1K pullup to 5V to allow for bidirectional communications, ie CEA-909 mode B

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