參數(shù)資料
型號: TEA5766UK/N1/S21,1
廠商: NXP SEMICONDUCTORS
元件分類: 接收器
英文描述: FM, AUDIO SINGLE CHIP RECEIVER, PBGA25
封裝: 3.30 X 3.25 MM, 0.60 MM HEIGHT, WLCSP-25
文件頁數(shù): 4/59頁
文件大小: 273K
代理商: TEA5766UK/N1/S21,1
TEA5766UK_1
NXP B.V. 2007. All rights reserved.
Product data sheet
Rev. 01 — 22 March 2007
12 of 59
NXP Semiconductors
TEA5766UK
Stereo FM radio + RDS
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
001aaf444
mute the audio
outputs
BLFLAG = 0
FRRFLAG = 1
no mute
reset flags
set PLL frequency
increment current_pll
by 100 kHz
decrement current_pll
by 100 kHz
wait for PLL to settle
set LEVFLAG
true
false
level OK
start
true
false
IF OK
true
false
AHLSI
false
search up
true
false
band limit
true
false
search mode
BLFLAG = 0
FRRFLAG = 1
mute
BLFLAG = 1
FRRFLAG = 1
no mute
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