EVB71122C-433-FSK-C View Datasheet(PDF) - Melexis Microelectronic Systems

Part Name

Description

Manufacturer

EVB71122C-433-FSK-C

300 to 930MHz Receiver Evaluation Board Description

Melexis Microelectronic Systems  

EVB71122

300 to 930MHz Receiver

Evaluation Board Description

3.1.5 Control Word R4

Name

R

AGCMODE

Bits

[10:0]

[11]

Description

reference divider range

000 0100 1011 value is 75

#default

R counter range: 3 to 2047

AGC delay mode

0 gain decrease and increase with delay

1 gain decrease without delay, gain increase with delay

#default

selects AGC delay mode in combination with AGCDEL bits, see section 4.1.4 (R3)

3.1.6 Control Word R5

Name

Bits

Description

RIFF

reference divider value for IFF adjustment

[10:0] 010 1001 1011 value is 667

#default

IFF counter range: 4 to 2047

PRELIMINARY MODSEL

demodulation selection

[11]

0 FSK demodulation

1 ASK demodulation

selects modulation type when chip is controlled via SPI mode

3.1.7 Control Word R6

Name

IFFPRES

Bits

[7:0]

0110 1100

Description

IFF preset value

value is 108

IFF DAC preset at start of automatic tuning

#default

#default

IFFHLT

IFF halt

[8]

0 auto tuning running

1 auto tuning halted

#default

suspends IFF automatic tuning

IFFTUNE

IFF tuning

[9]

0 disable and load DAC with IFFPRES

1 enable

#default

reference Oscillator core current

ROCUR

[11:10]

00 85µA

01 170µA

10 270µA

11 355µA

#default

39012 71122 01

Rev. 001

Page 18 of 32

EVB Description

Sept/06

Share Link: