TDA5150 Datasheet, PDF (69/106 Pages) Infineon Technologies AG – On-chip, high resolution fractional-N synthesizer and Sigma-Delta modulator with ASK, FSK, GFSK options

TDA 5150
ADDR 0x04
TDA 5150 Functional Description
TXCFG0—Transmitter Configuration Register 0
Bit 7
GO2STDBY
cw/0
Bit 6
reserved
w/0
Bit 5
reserved
w/0
Bit 4
FSOFF
w/0
Bit 3
ISMB
w/0
Bit 2
ISMB
w/1
Bit 1
reserved
w/1
Bit 0
reserved
w/0
Bit 7 GO2STDBY
Bit 6 reserved
Bit 5 reserved
Bit 4 FSOFF
Bit <3:2> ISMB
Bit 1 reserved
Bit 0 reserved
Go to StandBy
Reserved, set 0
Reserved, set to 0
Fail-Safe mechanism turned off
RF frequency band bit <1:0>
Reserved, set to 1
Reserved, set to 0
GO2STDBY
FSOFF
ISMB
Put the chip in STDBY mode (look at the detailed state diagram), cleared after 1
is written
Fail-Safe mechanism
0: on
1:off
ISM band selection (2-bits)
00: MHz
300-320
01: MHz
425-450
10: MHz 11: MHz
863-870 902-928
For the reserved registers, it is mandatory to retain always the default values.
Data Sheet
69
V 1.0, July 2009