TRF3722: typ and max Id values for the supply pins

Vincenzo Pizzolante

Mastermind 22786 points

Part Number: TRF3722

hi,

may you provide the Typ. and Max. Id values for the power supply pins of TRF3722?

also, is it ok to GND all the NC pins (for the sake of a simpler layout)?

I would say yes as these should be not internally connected.

Any drawback in such practice (noise catching, or...)?

thanks a lot in advance

Vincenzo

over 4 years ago

0 RJ Hopper over 4 years ago

TI__Mastermind 18065 points

Vincenzo:

The datasheet provides the typical current / power dissipation performance values. We do not supply the max values. Figures 110 - 129 in the datasheet show the current and power dissipation performance over temperature and frequency. The quantum nature of the plots over frequency is due to the different LO divider circuitry kicking in.

You may ground the NC pins. They are truly NC. No drawback to doing so.

--RJH

0 Vincenzo Pizzolante over 4 years ago in reply to RJ Hopper

TI__Mastermind 22786 points

thanks RJH,

we are interested in the current drawing by each supply rail, for example Vcc_Mod, Vcc_dig , Vcc_tk, Vcc_vco etc.

how can we get or estimate such consumption?

Vincenzo

0 RJ Hopper over 4 years ago in reply to Vincenzo Pizzolante

TI__Mastermind 18065 points

Looking into pulling data from our ATE. Give me until June 25 to get access. --RJH

0 Vincenzo Pizzolante over 4 years ago in reply to RJ Hopper

TI__Mastermind 22786 points

hi RJH,

absolutely no prob. :)

thanks a lot

0 RJ Hopper over 4 years ago in reply to Vincenzo Pizzolante

TI__Mastermind 18065 points

V-

Below is the data that we have on the tester broken down by four rails. It is not every rail on the device. The first batch represents the initial configuration with entire device engaged.

Icc_LO_Initial@Vcc_LO[1] 210.090282 [mA]

Icc_MOD_Initial@Vcc_MOD[1] 128.652811 [mA]

Icc_TK_Initial@Vcc_TK[1] 20.892190 [mA]

Icc_VCO_Initial@Vcc_VCO[1] 47.053688 [mA]

Icc_Total_Initial@VCC_RFA[1] 406.688971 [mA]

This data is with the external LO disengaged.

Icc_LO_LO_Off@Vcc_LO[1] 150.600213 [mA]

Icc_MOD_LO_Off@Vcc_MOD[1] 128.291313 [mA]

Icc_TK_LO_Off@Vcc_TK[1] 20.851857 [mA]

Icc_VCO_LO_Off@Vcc_VCO[1] 46.286287 [mA]

Icc_Total_LO_Off@VCC_RFA[1] 346.029670 [mA]

--RJH

0 Vincenzo Pizzolante over 4 years ago in reply to RJ Hopper

TI__Mastermind 22786 points

wonderful!

thanks a lot RJH

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TRF3722: typ and max Id values for the supply pins