tea5766uk NXP Semiconductors, tea5766uk Datasheet - Page 13

• Manufacturer Part Number: tea5766uk
• Description: Tea5766uk Stereo Fm Radio + Rds
• Manufacturer: NXP Semiconductors

NXP Semiconductors
TEA5766UK_1
Product data sheet
7.21 RDS update or alternative frequency jump
A channel which transmits RDS data can have alternative channels which carry the same
information. These alternative channel frequencies are in the RDS data, so the host
processor can read the alternative frequencies and store them in a memory. More details
on this subject can be found in section 3.5 of RDS: The Radio Data System, Dietmar
Kopitz and Bev Marks .
Fig 4. Flowchart auto search or preset
wait for PLL to settle
set PLL frequency
mute the audio
FRRFLAG = 1
BLFLAG = 0
reset flags
level OK
no mute
outputs
IF OK
start
true
true
Rev. 01 — 22 March 2007
false
false
FRRFLAG = 1
BLFLAG = 0
AHLSI
mute
set LEVFLAG
true
false
false
increment current_pll
search mode
by 100 kHz
search up
true
true
FRRFLAG = 1
BLFLAG = 1
band limit
no mute
false
true
TEA5766UK
decrement current_pll
Stereo FM radio + RDS
by 100 kHz
© NXP B.V. 2007. All rights reserved.
false
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