XE1202 データシートの表示（PDF） - Unspecified

部品番号

コンポーネント説明

メーカー

XE1202

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

Unspecified 

Data Sheet

XE1202

RTParam_FEI

en

Dfefdmeomdoudla_toeudt

data

datain

counter_out

DataOut_FEI

BIT B0 BIT B0+1 BIT B0+2 BIT B0+3 BIT B0+4

0

N

X

N

TS_FE

Figure 3 Time diagram of an FEI measurement when “RTParam_Fsel” = 0

(the number of transitions on “counter_out” is for illustration only)

4.1.5 Transmitter

The output power of the power amplifier is programmable on four values with the register “RTParam_Tpow” (see

the Configuration register section below), as shown in the table below, where RFOPi are given in Electrical

Specifications section

RTParam_Tpow

00

01

10

11

Output power

RFOP10

RFOP1

RFOP20

RFOP2

The type of modulation of the LO frequency by the modulating bit stream is programmable through

RTParam_Filter:

- the input bit stream is directly applied to the frequency synthesizer without any pre-filtering

(RTParam_Filter=0)

- the input bit stream is pre-filtered before being applied to the frequency synthesizer; with this filtering, each

edge of the bit stream is linearly smoothed with a staircase transition (RTParam_Filter=1)

This is illustrated on the next page where DATAIN is the input bit stream to be transmitted.

11

D0211-105

Share Link: