- 您現(xiàn)在的位置：買賣IC網 > PDF目錄98195 > TDA7412 (STMICROELECTRONICS) 1 CHANNEL(S), TONE CONTROL CIRCUIT, PQFP44 PDF資料下載
參數(shù)資料
| 型號： | TDA7412 |
| 廠商： | STMICROELECTRONICS |
| 元件分類： | 音頻控制 |
| 英文描述： | 1 CHANNEL(S), TONE CONTROL CIRCUIT, PQFP44 |
| 封裝： | 10 X 10 MM, 1.40 MM HEIGHT, TQFP-44 |
| 文件頁數(shù)： | 25/56頁 |
| 文件大小： | 716K |
| 代理商： | TDA7412 |
第1頁第2頁第3頁第4頁第5頁第6頁第7頁第8頁第9頁第10頁第11頁第12頁第13頁第14頁第15頁第16頁第17頁第18頁第19頁第20頁第21頁第22頁第23頁第24頁當前第25頁第26頁第27頁第28頁第29頁第30頁第31頁第32頁第33頁第34頁第35頁第36頁第37頁第38頁第39頁第40頁第41頁第42頁第43頁第44頁第45頁第46頁第47頁第48頁第49頁第50頁第51頁第52頁第53頁第54頁第55頁第56頁
31/56
TDA7412
Figure 24. Signals during stereodecoder's SoftMute
Figure 25. Signal-Control via SoftMute-Pin
3.2 InGain + Infilter
The InGain stage allows to adjust the MPX-signal to a magnitude of about 1Vrms internally which is the recom-
mended value. The 4.th order input filter has a corner frequency of 80kHz and is used to attenuate spikes and
noise and acts as an anti-aliasing filter for the following switch capacitor filters.
3.3 Demodulator
In the demodulator block the left and the right channel are separated from the MPX-signal. In this stage also the
19-kHz pilottone is cancelled. For reaching a high channel separation the A679 offers an I2C-bus programmable
roll-off adjustment which is able to compensate the lowpass behavior of the tuner section. If the tuner's attenu-
ation at 38kHz is in a range from 7.2% to 31.0% the A679 needs no external network in front of the MPX-pin.
Within this range an adjustment to obtain at least 40dB channel separation is possible. The bits for this adjust-
ment are located together with the fieldstrength adjustment in one byte. This gives the possibility to perform an
MP-HOLD
SOFTMUTE
PIN
D00AU1165
SOFTMUTE
PLL-HOLD
INFLUENCE
STDHMUTE
MUTED
STDHMUTE
INFLUENCE
SOFTMUTE
INFLUENCE
IIC-BUS
SOFTMUTE
INFLUENCE
相關PDF資料 |
PDF描述 |
|---|---|
| TDA7415CB | SPECIALTY ANALOG CIRCUIT, PQFP64 |
| TDA7416 | 1 CHANNEL(S), EQUALIZER CIRCUIT, PQFP44 |
| TDA7417TR | 1 CHANNEL(S), EQUALIZER CIRCUIT, PQFP32 |
| TDA7417 | 1 CHANNEL(S), EQUALIZER CIRCUIT, PQFP32 |
| TDA7418TR | SPECIALTY CONSUMER CIRCUIT, PDSO20 |
相關代理商/技術參數(shù) |
參數(shù)描述 |
|---|---|
| TDA7415 | 制造商:未知廠家 制造商全稱:未知廠家 功能描述: |
| TDA7415CB | 功能描述:音頻放大器 Car-radio Multimedia Signal (CMSP) 6-chnl RoHS:否 制造商:STMicroelectronics 產品: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 |
| TDA7415CBTR | 功能描述:音頻放大器 Car-radio Multimedia Signal (CMSP) 6-chnl RoHS:否 制造商:STMicroelectronics 產品: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 |
| TDA7416 | 制造商:STMICROELECTRONICS 制造商全稱:STMicroelectronics 功能描述:CARRADIO SIGNAL PROCESSOR |
| TDA7416_11 | 制造商:STMICROELECTRONICS 制造商全稱:STMicroelectronics 功能描述:Car radio signal processor |
發(fā)布緊急采購，3分鐘左右您將得到回復。