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參數(shù)資料
| 型號： | TDA7540N |
| 廠商： | STMICROELECTRONICS |
| 元件分類： | 調(diào)諧器 |
| 英文描述： | 2-BAND, AUDIO TUNER, PQFP80 |
| 封裝： | 14 X 14 MM, 1.40 MM HEIGHT, ROHS COMPLIANT, LQFP-80 |
| 文件頁數(shù)： | 32/76頁 |
| 文件大?。?/td> | 1225K |
| 代理商： | TDA7540N |
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Functional description
TDA7540N
The last bit of the start instruction defines the type of operation to be performed:
–
When set to "1", a read operation is selected
–
When set to "0", a write operation is selected
The TDA7540N connected to the bus will compare their own hardwired address with the
slave address being transmitted, after detecting a START condition. After this comparison,
the TDA7540N will generate an "acknowledge" on the SDA line and will do either a read or a
write operation according to the state of R/W bit.
Write operation
Following a START condition the master sends a slave address word with the R/W bit set to
"0". The device will generate an "acknowledge" after this first transmission and will wait for a
second word (the word address field). This 8-bit address field provides an access to any of
the 64 internal addresses.
Upon receipt of the word address the TDA7540N slave device will respond with an
"acknowledge". At this time, all the following words transmitted to the TDA7540N will be
considered as Data. The internal address will be automatically incremented up to hex40 in
page mode. Than again subaddresse hex60 has to be transmitted for following registers
above 32.
After each word receipt the TDA7540N will answer with an "acknowledge".
Read operation
If the master sends a slave address word with the R/W bit set to "1", the TDA7540N will
transit one 8-bit data word. This data word includes the following informations:
bit0 (ISS filter, 1 = ON, 0 = OFF)
bit1 (ISS filter bandwidth, 1 = 80kHz, 0 = 120kHz)
bit2 (STEREO,1 = STEREO, 0 = MONO)
bit3 (1 = PLL is locked in , 0 = PLL is locked out).
bit4 (fieldstrength indicator, 1 = lower as softmute threshold, 0 = higher as softmute
threshold)
bit5 (adjacent channel indicator, 1 = adjacent channel present, 0 = no adjacent
channel)
bit6 (deviation indicator, 1 = strong overdeviation present, 0 = no strong overdeviation)
bit7 (deviation indicator, 1 = overdeviation present, 0 = no overdeviation)
相關PDF資料 |
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| TDA7560 | 55 W, 4 CHANNEL, AUDIO AMPLIFIER, PZFM25 |
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| TDA7561 | 38 W, 4 CHANNEL, AUDIO AMPLIFIER, PZFM25 |
| TDA7562 | 38 W, 4 CHANNEL, AUDIO AMPLIFIER, PZFM27 |
| TDA7563AH | 50 W, 4 CHANNEL, AUDIO AMPLIFIER, ZFM27 |
相關代理商/技術參數(shù) |
參數(shù)描述 |
|---|---|
| TDA7540NTR | 功能描述:調(diào)諧器 AM/FM car radio Tuner IC Decoder RoHS:否 制造商:NXP Semiconductors 功能: 噪聲系數(shù): 工作電源電壓: 最小工作溫度: 最大工作溫度: |
| TDA7541 | 功能描述:音頻放大器 AM/FM car radio Tuner IC Decoder RoHS:否 制造商:STMicroelectronics 產(chǎn)品:General Purpose Audio Amplifiers 輸出類型:Digital 輸出功率: THD + 噪聲: 工作電源電壓:3.3 V 電源電流: 最大功率耗散: 最大工作溫度: 安裝風格:SMD/SMT 封裝 / 箱體:TQFP-64 封裝:Reel |
| TDA7541B | 功能描述:音頻放大器 AM/FM car radio Tuner IC Decoder RoHS:否 制造商:STMicroelectronics 產(chǎn)品:General Purpose Audio Amplifiers 輸出類型:Digital 輸出功率: THD + 噪聲: 工作電源電壓:3.3 V 電源電流: 最大功率耗散: 最大工作溫度: 安裝風格:SMD/SMT 封裝 / 箱體:TQFP-64 封裝:Reel |
| TDA7541BW | 功能描述:音頻放大器 AM/FM car radio Tuner IC Decoder RoHS:否 制造商:STMicroelectronics 產(chǎn)品:General Purpose Audio Amplifiers 輸出類型:Digital 輸出功率: THD + 噪聲: 工作電源電壓:3.3 V 電源電流: 最大功率耗散: 最大工作溫度: 安裝風格:SMD/SMT 封裝 / 箱體:TQFP-64 封裝:Reel |
| TDA7541BWTR | 功能描述:音頻放大器 AM/FM car radio Tuner IC Decoder RoHS:否 制造商:STMicroelectronics 產(chǎn)品:General Purpose Audio Amplifiers 輸出類型:Digital 輸出功率: THD + 噪聲: 工作電源電壓:3.3 V 電源電流: 最大功率耗散: 最大工作溫度: 安裝風格:SMD/SMT 封裝 / 箱體:TQFP-64 封裝:Reel |
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