XE1202 View Datasheet(PDF) - Unspecified

Part Name

Description

Manufacturer

XE1202

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

Unspecified 

Data Sheet

XE1202

The standard power up sequence from sleep to receiver mode uses a “boost” procedure; this “boost” sequence is

selected by setting the RTParam_WBB parameter to “0”. The sequence is described in Figure 7 below

Mode = 000 Mode = 001

- Sleep

- Ref Xtal

oscillator

running

Mode = 010

- Baseband

- Ref Xtal

oscillator

running

≥TS_OS

≥TS_BBR

RTParam_WBB =0

Mode = 011

- Frequency

synthesizer

- Baseband

- Ref Xtal oscillator

running

≥TS_FS

Received data valid

Mode = 100

Mode=001

- RF Front End

- Frequency synthesizer

- Baseband

- Ref Xtal oscillator

running

- Ref Xtal

oscillator

running

≥TS_BB2

t

Figure 7 Standard “boosted” power up sequence from Stand By to Receiver Mode

The typical current consumption values during the standard power-up sequence from Stand-by to Receiver Mode is

the following

<1 uA

Mode= 000

0.85 mA

Mode= 001

3.0 mA

Mode=010

RTParam_WBB =0

11.5 mA

14.0 mA

Mode =011

Mode = 100

≥TS_OS

≥TS_BBR

≥TS_FS

≥TS_BB2

t

Figure 8 Typical current consumption profile during a standard “boosted” power up sequence from Stand By to Receiver Mode

The standard power up sequence from sleep to transmit mode is described in Figure 9 below

Mode = 000 Mode = 001 Mode = 110 Mode =111

Transmission

- Sleep

- Ref Xtal

oscillator

running

≥TS_OS

- Frequency

synthesizer

- Ref Xtal

oscillator

running

- Power Amplifier

- Frequency synthesizer

- Ref Xtal oscillator

running

≥TS_FS

≥TS_TR

Figure 9 Standard power up sequence from Stand by to Transmit Mode

Mode=001

- Ref Xtal

oscillator

running

t

20

D0211-105

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