Datasheet
Table Of Contents
- Product Overview
- 1 ESP32-C3 Series Comparison
- 2 Pin Definition
- 3 Functional Description
- 3.1 CPU and Memory
- 3.2 System Clocks
- 3.3 Analog Peripherals
- 3.4 Digital Peripherals
- 3.4.1 General Purpose Input / Output Interface (GPIO)
- 3.4.2 Serial Peripheral Interface (SPI)
- 3.4.3 Universal Asynchronous Receiver Transmitter (UART)
- 3.4.4 I2C Interface
- 3.4.5 I2S Interface
- 3.4.6 Remote Control Peripheral
- 3.4.7 LED PWM Controller
- 3.4.8 General DMA Controller
- 3.4.9 USB Serial/JTAG Controller
- 3.4.10 TWAI® Controller
- 3.5 Radio and Wi-Fi
- 3.6 Bluetooth LE
- 3.7 Low Power Management
- 3.8 Timers
- 3.9 Cryptographic Hardware Accelerators
- 3.10 Physical Security Features
- 3.11 Peripheral Pin Configurations
- 4 Electrical Characteristics
- 5 Package Information
- 6 Related Documentation and Resources
- Revision History
4 Electrical Characteristics
4.9.1 Bluetooth LE RF Transmitter (TX) Specifications
Table 26: Transmitter Characteristics Bluetooth LE 1 Mbps
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
| — 1.75 — kHz
Max |f
n −
f
n−5
| — 1.46 — kHz
|f
1 −
f
0
| — 0.80 — kHz
Modulation characteristics
∆ f1
avg
— 250.00 — kHz
Min ∆ f2
max
(for at least
99.9% of all ∆ f2
max
)
— 190.00 — kHz
∆ f2
avg
/∆ f1
avg
— 0.83 — —
In-band spurious emissions
± 2 MHz offset — –37.62 — dBm
± 3 MHz offset — –41.95 — dBm
> ± 3 MHz offset — –44.48 — dBm
Table 27: Transmitter Characteristics Bluetooth LE 2 Mbps
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
— 20.80 — kHz
Max |f
0 −
f
n
| — 1.30 — kHz
Max |f
n −
f
n−5
| — 1.33 — kHz
|f
1 −
f
0
| — 0.70 — kHz
Modulation characteristics
∆ f1
avg
— 498.00 — kHz
Min ∆ f2
max
(for at least
99.9% of all ∆ f2
max
)
— 430.00 — kHz
∆ f2
avg
/∆ f1
avg
— 0.93 — —
In-band spurious emissions
± 4 MHz offset — –43.55 — dBm
± 5 MHz offset — –45.26 — dBm
> ± 5 MHz offset — –45.26 — dBm
Table 28: Transmitter Characteristics Bluetooth LE 125 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
— 17.50 — kHz
Max |f
0 −
f
n
| — 0.45 — kHz
|f
n −
f
n−3
| — 0.70 — kHz
|f
0 −
f
3
| — 0.30 — kHz
Cont’d on next page
Espressif Systems 37
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ESP32-C3 Series Datasheet v1.2