TPS65235-1: DiSEqC Protocol

Sadanori Kato

Part Number: TPS65235-1
Other Parts Discussed in Thread: TPS65235

Hi,

Could you please tell me DiSEqC protocol ?

Q1.
Can TPS65235-1 convert I2C data to 22kHz tone signal and convert 22kHz tone signal to I2C data if transmitting and receiving with DiSEqC 2.x ?

Q2.
Can TPS65235-1 receive 22kHz tone signal via DIN pin(15 pin) ?

Q3.
Please tell me the recommended setting procedure for TPS65235-1 in detail if receiving DiSEqC1.x signal and performing LNB settings.

Q4.
I refer the following application note, so please let me know if there is a document that mentions the basic contents of DiSEqC.

DiSEqC Protocol and Low-Noise Block Voltage Regulator TPS65235 for Satellite - STB/TV
http://www.ti.com/lit/an/slva863/slva863.pdf

Best regards,
Kato

0 Sam(MPAA) Zhang over 5 years ago

Hi Kato,

Q1.

No, 22kHz tone signal is controlled by EXTM pin, not related to register nor I2C command.

Q2.

Yes, it can detect if there is tone signal on DIN pin, and reflect the status on DOUT pin. The output of DOUT pin is logic high or low.

Q3.

TPS65235-1 is just a power supply with tone generation capability here. For DiSEqC1.x design, please refer to the user's guide below.

Q4.

We don't have any further document about DiSEqC.

Regards,

Hao

0 Sadanori Kato over 5 years ago in reply to Sam(MPAA) Zhang

Guru 36500 points

Hi Hao-san,

Thank you for your reply.

I understood and will contact you if I get addtional questions from our customer.

Best regards,
Kato

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