參數資料
型號: TEA6843HL/V1,518
廠商: NXP SEMICONDUCTORS
元件分類: 接收器
英文描述: AM/FM, AUDIO SINGLE CHIP RECEIVER, PQFP80
封裝: 12 X 12 MM, 1.40 MM HEIGHT, PLASTIC, MS-026, SOT-315-1, LQFP-80
文件頁數: 27/62頁
文件大?。?/td> 363K
代理商: TEA6843HL/V1,518
2003 Dec 19
33
Philips Semiconductors
Product specication
New In Car Entertainment (NICE)
extended car radio
TEA6843HL
handbook, full pagewidth
t1
t3
AF channel
AF = 1
main channel
t2
t (ms)
MHC368
01234
5
6
7
8
FMMPX
SAMPLE
HOLD
I2C-bus
Fig.10 Inaudible RDS update timing diagram.
Hold signal is used to hold the quality information for signal processing of the main channel during the alternative frequency jumps.
Quality measurement can be carried out during sample = 1.
t1 is the internal clock related logic delay of 100 s.
t2 should be >1.1 ms to ensure correct loading of PLL for the main channel.
t3 should be >0 to ensure inaudible update; t3 < 0 extends the mute period.
handbook, full pagewidth
t1
t2
continuous mode quality test
n
n + 1
t (ms)
1
0
MHC369
0
SAMPLE
HOLD
FMMPX
I2C-bus
t1
Fig.11 Preset mode timing diagram.
t1 is the internal clock related logic delay of 100 s.
t2 should be larger than the required PLL tuning time for the given band: FM = 1 ms and AM = 20 ms.
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