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參數(shù)資料
| 型號： | TDA7478 |
| 廠商： | 意法半導(dǎo)體 |
| 元件分類： | 其它接口 |
| 英文描述： | TERMINAL |
| 中文描述： | IGBT模塊 |
| 文件頁數(shù)： | 4/8頁 |
| 文件大?。?/td> | 168K |
| 代理商： | TDA7478 |
TDA7478
4/8
Figure 4. RDS timing diagram
3
The RDS (1187.5Hz) output clock on RDCL line is synchronized to the incoming data. According to the internal
PLL lock condition data change can result on the falling or on the rising clock edge. (see Fig. 1)Whichever clock
edge is used by the decoder (rising or falling edge) the data will remain valid for 416.7
μ
s after the clock transi-
tion.
OUTPUT TIMING
4
Two different crystal frequencies can be used. The adaption of the internal clock divider to the external crystal
is achieved via the input pin FSEL. See the following table for reference:
OSCILLATOR CONTROLS (FSEL, OSEL)
Table 6.
A special mode is introduced to reduce EMI. With pin OSEL connected to GND the internal oscillator is switched
off and an external sinusoidal frequency could be applied on OSCIN. The peak to peak voltage of this signal
can be reduced down to 60mV.
In this mode the frequency selection via FSEL is still active.
Suggested values of C1 and C2 are shown in the following table:
Table 7.
Crystal
FSEL (pin configuration)
4.332MHz
8.664MHz
connected to GND or open
connected to Vs
Crystal
C1
C2
4.332MHz
8.664MHz
27pF
27pF
47pF
-
CLOCK
LINE
DATA
LINE
相關(guān)PDF資料 |
PDF描述 |
|---|---|
| TDA7478D | TERMINAL |
| TDA7479 | SINGLE CHIP RDS DEMODULATOR FILTER |
| TDA7479D | SINGLE CHIP RDS DEMODULATOR FILTER |
| TDA7480 | 10W MONO CLASS-D AMPLIFIER |
| TDA7481 | 10W MONO CLASS-D AMPLIFIER |
相關(guān)代理商/技術(shù)參數(shù) |
參數(shù)描述 |
|---|---|
| TDA7478_11 | 制造商:STMICROELECTRONICS 制造商全稱:STMicroelectronics 功能描述:Single chip RDS demodulator |
| TDA7478D | 制造商:STMICROELECTRONICS 制造商全稱:STMicroelectronics 功能描述:SINGLE CHIP RDS DEMODULATOR |
| TDA7479 | 制造商:STMICROELECTRONICS 制造商全稱:STMicroelectronics 功能描述:SINGLE CHIP RDS DEMODULATOR FILTER |
| TDA7479_04 | 制造商:STMICROELECTRONICS 制造商全稱:STMicroelectronics 功能描述:SINGLE CHIP RDS DEMODULATOR + FILTER |
| TDA7479_08 | 制造商:STMICROELECTRONICS 制造商全稱:STMicroelectronics 功能描述:Single chip RDS demodulator filter |
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