EVAL-ADF7021DBZ2 View Datasheet(PDF) - Analog Devices

Part Name

Description

MFG CO.

EVAL-ADF7021DBZ2

High Performance Narrow-Band Transceiver IC

Analog Devices 

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Data Sheet

4FSK Timing

In 4FSK receive mode, MSB/LSB synchronization should be guaranteed by SWD in the receive bit stream.

REGISTER 0 WRITE

SWITCH FROM Rx TO Tx

tSYMBOL

tBIT

t13

t11

t12

SLE

ADF7021

TxRxCLK

TxRxDATA

Rx SYMBOL

MSB

Rx SYMBOL

LSB

Rx SYMBOL

MSB

Rx SYMBOL

LSB

Tx SYMBOL Tx SYMBOL Tx SYMBOL

MSB

LSB

MSB

Tx/Rx MODE

SLE

Rx MODE

Figure 6. Receive-to-Transmit Timing Diagram in 4FSK Mode

Tx MODE

REGISTER 0 WRITE

SWITCH FROM Tx TO Rx

t15

t14

tSYMBOL

tBIT

TxRxCLK

TxRxDATA

Tx SYMBOL

MSB

Tx SYMBOL

LSB

Tx SYMBOL

MSB

Tx SYMBOL

LSB

Rx SYMBOL Rx SYMBOL

MSB

LSB

Tx/Rx MODE

Tx MODE

Figure 7. Transmit-to-Receive Timing Diagram in 4FSK Mode

Rx MODE

Rev. B | Page 13 of 64

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