RYZ024A datasheet(15/40 Pages) RENESAS

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RYZ024A

Datasheet

R19DS0115EU0101 Rev.1.01

Page 15 of 38

Nov.14.22

RF Output Power

The RYZ024A maximum output power within the recommended operating range (from 2.5 to 5.5 V) is given

in Table 22.

Table 22. RF Max Output Power

Bands

Output Power

All bands

23 dBm ± 1 dB

RF Performance at 2.2V

While it is not recommended to operate the RYZ024A in the range 2.2 to 2.5 V, the RF section will continue

to work normally, albeit with reduced TX output power as shown in Table 23 below.

Table 23. RF Performance at 2.2V compared to 2.5V

Temperature

Sensitivity Loss

Output Power Loss

-30 °C

No loss

1.1 dB

25 °C

No loss

1.1 dB

85 °C

No loss

1.7 dB

Power Supply Dimensioning

This section provides guidance to device manufacturers when designing the power supply or selecting the

battery that will power RYZ024A.

Overview

The current consumption of the RYZ024A peaks before every TX sub-frame as shown in Figure 7. In this

figure, every time division is 50 µs. Around 150 µs from the start, two current peaks can be observed with a

current peak 34% higher than the average current consumption during the 23 dBm TX tone.

Figure 7. Current Consumption in TX Sub-Frame

Peak Current Measuring Method

Renesas recommends the setup represented in Figure 8 for peak current measurement. This setup was

used to record the measurements presented in Table 24.

Notes:

Voltage probes are placed close to module VBAT input.

Voltage probes accuracy is calibrated using a current probe.

A large capacitance Cbatt is placed close to the VBAT pin to simulate a battery and screen the device

from the parasitic inductances of the cables and tracks.

2x22 µF capacitors (Cext) are placed between the voltage probes and the module VBAT input to soften

the current peaks.

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