Datasheet

4 Electrical Characteristics
Table 28 – cont’d from previous page
Parameter Description Min Typ Max Unit
Modulation characteristics
∆ f1
avg
— 250.00 — kHz
Min ∆ f1
max
(for at least
99.9% of all∆ f2
max
)
— 235.00 — kHz
In-band spurious emissions
± 2 MHz offset — –37.90 — dBm
± 3 MHz offset — –41.00 — dBm
> ± 3 MHz offset — –42.50 — dBm
Table 29: Transmitter Characteristics  Bluetooth LE 500 Kbps
Parameter Description Min Typ Max Unit
RF transmit power
RF power control range –27.00 0 18.00 dBm
Gain control step — 3.00 — dB
Carrier frequency offset and drift
Max |f
n
|
n=0, 1, 2, ..k
— 17.00 — kHz
Max |f
0 −
f
n
| — 0.88 — kHz
|f
n −
f
n−3
| — 1.00 — kHz
|f
0 −
f
3
| — 0.20 — kHz
Modulation characteristics
∆ f2
avg
— 208.00 — kHz
Min ∆ f2
max
(for at least
99.9% of all ∆ f2
max
)
— 190.00 — kHz
In-band spurious emissions
± 2 MHz offset — –37.90 — dBm
± 3 MHz offset — –41.30 — dBm
> ± 3 MHz offset — –42.80 — dBm
4.9.2 Bluetooth LE RF Receiver (RX) Specifications
Table 30: Receiver Characteristics  Bluetooth LE 1 Mbps
Parameter Description Min Typ Max Unit
Sensitivity @30.8% PER — — –97 — dBm
Maximum received signal @30.8% PER — — 5 — dBm
Co-channel C/I — — 8 — dB
Adjacent channel selectivity C/I
F = F0 + 1 MHz — –3 — dB
F = F0 – 1 MHz — –4 — dB
F = F0 + 2 MHz — –29 — dB
F = F0 – 2 MHz — –31 — dB
F = F0 + 3 MHz — –33 — dB
F = F0 – 3 MHz — –27 — dB
F ≥ F0 + 4 MHz — –29 — dB
F ≤ F0 – 4 MHz — –38 — dB
Image frequency — — –29 — dB
Adjacent channel to image frequency
F = F
image
+ 1 MHz — –41 — dB
F = F
image
– 1 MHz — –33 — dB
Cont’d on next page
Espressif Systems 38
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ESP32-C3 Series Datasheet v1.2