THVD1500: total supply current

Takao-san,
It looks your interpretation is right. I'll get the Icc data for you.
Regards,
Hao

Takao-san,
Here is the data:
TX enabled, RX enabled: 42mA (typ), 70mA (max)
TX enabled, RX disabled: 42mA (typ), 70mA (max)
TX disabled, RX enabled: 26mA (typ), 35mA (max)
TX disabled, RX disabled: 26mA (typ), 35mA (max)
Please let me know if you have any more questions.
Regards,
Hao

Hello Hao-san,

Thank you for your answer.
I have two questions about your answer.

1, Why is 'TX disabled, RX enabled: 26mA (typ), 35mA (max)' the exactly same as 'TX disabled, RX disabled: 26mA (typ), 35mA (max)'?
I think that 'TX disabled, RX enabled: 42mA (typ), 55mA (max)' because of electrical characteristics of datasheet.
Is this wrong?

2, Why is 'TX enabled, RX enabled: 42mA (typ), 70mA (max)' the exactly same as 'TX enabled, RX disabled: 42mA (typ), 70mA (max)'?
I think that the supply current with 'TX enabled, RX enabled' will need more current.
Is this wrong?

Best regards,

Takao-san,
Basically the RX power dissipation is negligible comparing to the TX power and the quiescent power of device. The device itself consumes 26mA typ and the TX takes another 16mA. I hope this makes sense to you.
Regards,
Hao

Hao-san,

Thank you for your answer, but I am confused.
Could you explain about below?

Why Icc@7.5 section is 42mA(typ)/55mA(max) with outputs enabled?

If your comment ' The device itself consumes 26mA typ and the TX takes another 16mA.' is true,
this supply current will be 26mA (typ), 35mA (max).
This condition is the driver disabled and the receiver enabled...isn't it?

Best regards,

Takao-san,

I'm sorry I didn't make it clearly. The device needs 26mA typ for the circuitries other than the TX and RX. If the TX is turned on, the power becomes 42mA typ. The RX itself consumes less than 1mA. Please let me know if you have more questions.

Regards,

Hao

Hao-san,

Thank you for your detail explanation, but I cannot understand the value of Icc at 7.5 section.

At this section, Icc will be 42mA(typ) and 55mA(max) when receiver is only enabled. What does this value mean?

If we follow your definition, this value will be about 26mA(typ) and 35mA(max) because the RX does not consume current.

Best regards,

Takao Yamamoto