XE1202 データシートの表示（PDF） - Unspecified

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コンポーネント説明

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XE1202

433MHz / 868MHz / 915MHz Low-power, integrated UHF transceiver

Unspecified 

Example of pattern recognition with an 8-bit pattern

Byte Address

01000

Bit 7

Bit 0

10010011

101 10010011

Byte Address

01001

Bit 7

Bit 0

xxxxxxxx

previous bits from

demodulator

last bit received

Byte Address

01010

Bit 7

Bit 0

xxxxxxxx

Data Sheet

XE1202

Byte Address

01011

Bit 7

Bit 0

xxxxxxxx

5.3 Operating Modes

The XE1202 has 4 main operating modes as set by the MODE[2:0] inputs and illustrated in table below. To switch

between modes, the new value of the inputs MODE[2:0] should be modified when the EN signal is low. The actual

change will be applied to the transceiver upon the rising edge of the EN signal.

Over the operating supply and temperature range, set-up and hold time for MODE[2:0] on the rising edge of EN are

200ns, while the negative pulse duration on EN is 2µs minimum.

MODE[2:0]

XXX

YXY

EN

Transceiver in Mode XXX

Transceiver in Mode YXY

Name

Sleep mode

Standby mode

Receiver mode

Transmitter mode

MODE(2:0)

Description

000

-

001

Reference Xtal oscillator running

100

Ref Xtal oscillator, Frequency synthesizer, Receiver running

111

Ref Xtal oscillator, Frequency synthesizer, Transmitter running

Table 3 XE1202 Main operating modes

5.3.1 Standard power up sequence for the receiver and transmitter

3 additional operating modes are defined and should be used when the transceiver is switched from the standby

mode to the receiver or transmitter mode. These additional operating modes are illustrated in Table 4 below

Name

Receiver mode

Transmitter mode

MODE(2:0)

010

011

110

Description

Ref Xtal oscillator, Baseband running (first step)

Ref Xtal oscillator, Frequency synthesizer, Baseband running

(first step)

Ref Xtal oscillator, Frequency synthesizer running

Table 4 XE1202 Additional operating modes

19

D0211-105

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