NRF7002-CEAA-R7 datasheet(52/69 Pages) NORDIC

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Hardware and layout

32 MHz

40 MHz

nRF5340

(High voltage mode)

VDDH

VDD

GPIO

(Q)SPI

GPIO

nRF7002

IOVDD

HOST_IRQ

COEX

BUCKEN

OTPVDD

PWRIOVDD

(Q)SPI

1.8 V

3.6 V

1.8 V (2.5 V)

VBAT

BUCKVBAT

AFEVBAT

BUCKVBATS

Figure 31: Supply system - high voltage mode

Both nRF5340 (used in high voltage mode) and nRF7002 can be supplied from a single 3.6 V supply.

nRF5340 can provide a 1.8 V supply used for the IO supply on nRF7002. An external switch is used to

disconnect IOVDD on nRF7002 when not in use. The control of the switch is handled by the Wi-Fi driver on

nRF5340.

32 MHz

40 MHz

nRF5340

(Normal voltage mode)

VDDH

VDD

GPIO

(Q)SPI

GPIO

nRF7002

IOVDD

HOST_IRQ

COEX

BUCKEN

VBAT

BUCKVBAT

AFEVBAT

OTPVDD

PWRIOVDD

(Q)SPI

3.6 V

1.8 V (2.5 V)

1.8 V

BUCKVBATS

Figure 32: Supply system - normal voltage mode

14.3.7 QSPI/SPI connections

The nRF7002 can be connected to the nRF5340 host either with a QSPI or a SPI. QSPI is normally the

preferred option, but in cases where QSPI on the host is used for other purposes SPI can be used.

The following figure shows the connection using QSPI between nRF7002 and the host MCU (nRF5340).

4486_184 v1.2

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