User's Manual

5. El
ectrical Characteristics
Symb
ol
Para
meter
Min
Typ
Max
Unit
Low-leve
l sink current
I
OL
(VDD
1
= 3.3
V, V
OL
= 0.495
V,
-
28
-
mA
output
drive strength set to the maximum)
R
P U
Resi
stance of internal pull-up resistor
-
45
-
kΩ
R
P D
Resi
stance of internal pull-down resistor
-
45
-
kΩ
V
IL
_
nRST
Low-leve
l input voltage of CHIP_PU to power off the chip
-
-
0.6
V
Note
s:
1.
Please see Appendix
IO_MUX of ESP32 User Manual for IO’s power domain. VDD is the I/O voltage for a
particular power domain of pins.
2. For VDD3P3_CPU and VDD3P3_RTC power domain, per-pin current sourced in the same domain is gradually
reduced from around 40 mA to around 29 mA, V
OH
>=2.64 V, as the number of current-source pins increases.
3. Pins occupied by flash and/or PSRAM in the VDD_SDIO power domain were excluded from the test.
5.4 Wi-Fi Radio
Table 8: Wi-Fi Radio Characteristics
Para
meter
Cond
ition
Min
Typi
cal
Max
Unit
Oper
ating frequency range
not
e
1
-
2412
-
2462
MHz
Outp
ut impedance
note2
-
-
*
-
Ω
TX po
wer
not
e
3
dBm
Sens
itivity
11b, 1
Mbps
-
–98
-
dBm
11b, 11
Mbps
-
–89
-
dBm
11g, 6
Mbps
-
–92
-
dBm
11g, 54
Mbps
-
–74
-
dBm
11n, H
T20, MCS0
-
–91
-
dBm
11n, H
T20, MCS7
-
–71
-
dBm
11n, H
T40, MCS0
-
–89
-
dBm
11n, H
T40, MCS7
-
–69
-
dBm
Adja
cent channel rejection
11g, 6
Mbps
-
31
-
dB
11g, 54
Mbps
-
14
-
dB
11n, H
T20, MCS0
-
31
-
dB
11n, H
T20, MCS7
-
13
-
dB
1. Device should operate in the frequency range allocated by regional regulatory authorities. Target operating
frequency range is configurable by software.
2. For the modules that use IPEX antennas, the output impedance is 50 Ω. For other modules without IPEX
antennas, users do not need to concern about the output impedance.
3. Target TX power is configurable based on device or certification requirements.
Espressif Systems 11 ESP32-WROOM-32UE User Manual V0.1
-
802.11b:24.16dBm;802.11g:23.52dBm
802.11n20:23.01dBm;802.11n40:21.18dBm