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參數(shù)資料
| 型號： | TDA7476 |
| 廠商： | STMICROELECTRONICS |
| 元件分類： | 消費家電 |
| 英文描述： | SPECIALTY CONSUMER CIRCUIT, PDSO24 |
| 封裝： | SOP-24 |
| 文件頁數(shù)： | 6/19頁 |
| 文件大小： | 161K |
| 代理商： | TDA7476 |
TDA7476
14/19
s
Step 4: repeat Step1, Step2, Step3 while the second, third, fourth, ...turn-on diagnostic has to be done.
During the last turn-on diagnostic the
P sends ADD2, receives BYTE1, BYTE2, BYTE3, and sends
the acknowlegde after BYTE3
In this way only after that the TDA7476 has done for N times the turn-on diagnostic, it switches from turn-on to
permanent diagnostic mode.From now the TDA7476 always does the permanent diagnostic.To save time when
the audio system is switched on, it is possible to do the repetitive turn-on diagnostic when the car-radio is turned
off. In this case the steps to follow to do the repetitive turn-on diagnostic are the following:
1- to switch off the TDA7476 connecting STBY pin to ground;
2- to wait T5V seconds (time necessary for the discharge of the capacitor). If C5V = 10F then T5V = 20ms typ;
3- to switch on the TDA7476
4- to do the repetitive turn-on diagnostic as above described;
5- to turn off the TDA7476.
WARNING PIN
s
This is an open drain output pin that is activated when a fault condition is present for more than 2 sec
(TYP). The fault conditions related to the warning pin are as follows:
- AUX1, AUX2
Short to GND
- CH1, CH2, CH3, CH4, CH5:
Short Circuit to GND
Short Circuit to Vs
s
The purpose of this pin is to alert the
P and start with the permanent diagnostic routine only if faults
are present, thus avoiding CPU's waste of time.
START
ADD2
ACK
BYTE1
ACK
BYTE2
ACK
BYTE3
STOP
START
ADD2
ACK
BYTE1
ACK
BYTE2
ACK
BYTE3
ACK
STOP
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| TDA7479ADTR | SPECIALTY CONSUMER CIRCUIT, PDSO16 |
| TDA7479DTR | SPECIALTY CONSUMER CIRCUIT, PDSO16 |
| TDA7490LSA | 15 W, 2 CHANNEL, AUDIO AMPLIFIER, PZFM19 |
| TDA7490L | 20 W, 2 CHANNEL, AUDIO AMPLIFIER, PZFM25 |
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相關(guān)代理商/技術(shù)參數(shù) |
參數(shù)描述 |
|---|---|
| TDA7476_01 | 制造商:STMICROELECTRONICS 制造商全稱:STMicroelectronics 功能描述:CAR RADIO DIAGNOSTIC PROCESSOR |
| TDA7476013TR | 功能描述:處理器 - 專門應(yīng)用 CAR RADIO DIAGNOSTIC RoHS:否 制造商:Freescale Semiconductor 類型:Multimedia Applications 核心:ARM Cortex A9 處理器系列:i.MX6 數(shù)據(jù)總線寬度:32 bit 最大時鐘頻率:1 GHz 指令/數(shù)據(jù)緩存: 數(shù)據(jù) RAM 大小:128 KB 數(shù)據(jù) ROM 大小: 工作電源電壓: 最大工作溫度:+ 95 C 安裝風(fēng)格:SMD/SMT 封裝 / 箱體:MAPBGA-432 |
| TDA7478 | 制造商:STMICROELECTRONICS 制造商全稱:STMicroelectronics 功能描述:SINGLE CHIP RDS DEMODULATOR |
| 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 |
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