6.12 Current Consumption - BLE Static Modes

PARAMETER

TEST CONDITION

SUPPLY

TYP

MAX

UNIT

TX, Max Duty Cycle

TX power = 0 dBm

VMain

102

mA

VPA

35

TX power = 10 dBm

VMain

102

VPA

100

TX power = 20 dBm

VMain

105

VPA

250

RX

VMain

62

VPA

0

6.13 Current Consumption - Device States

Nominal device at room temp

MODE

DESCRIPTION

SUPPLY

TYP

UNIT

Shutdown

External supplies are available, device

held in reset (nReset is low)

VMain + VPP

10

uA

VPA

2

Sleep

Low power mode - RAM in retention

VMain + VPP

330

VPA

2

6.14 Timing and Switching Characteristics

6.14.1 Power Supply Sequencing

For proper operation of the CC330x device, perform the recommended power-up sequencing as follows:

1. All supplies (VDD_MAIN_IN, VDDA, VIO, VPA) must be available before nReset is released.

2. For an external slow clock, ensure that the clock is stable before nReset is deasserted (high).

3. The nReset pin should be held low for at least 10 us after stabilization of the external power supplies.

6.14.2 Clocking Specifications

The CC330x device uses two clocks for operation:

• A fast clock running at 40 MHz for WLAN/BLE functions

• A slow clock running at 32.768 kHz for low power modes

The slow clock can be generated internally or externally. The fast clock must be generated externally.

6.14.2.1 Slow Clock Generated Internally

In order to minimize external components, the slow clock can be generated by an internal oscillator. However,

this clock is less accurate and consumes more power than sourcing the slow clock externally. For this scenario

the Slow_CLK_IN pin should be left not connected.

6.14.2.2 Slow Clock Using an External Oscillator

For optimal power consumption, the slow clock can be generated externally by an oscillator or sourced from

elsewhere in the system. The external source must meet the requirements listed below. This clock should be fed

into the CC330x pin Slow_CLK_IN and should be stable before nReset is deasserted and device is enabled.

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CC3301, CC3300

SWRS294D – MARCH 2023 – REVISED DECEMBER 2023

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Product Folder Links: CC3301 CC3300