- 您現(xiàn)在的位置：買賣IC網(wǎng) > PDF目錄98198 > TDA7705TR (STMICROELECTRONICS) AUDIO/VIDEO DEMODULATOR, PQFP64 PDF資料下載
參數(shù)資料
| 型號： | TDA7705TR |
| 廠商： | STMICROELECTRONICS |
| 元件分類： | 接收器 |
| 英文描述： | AUDIO/VIDEO DEMODULATOR, PQFP64 |
| 封裝： | 10 X 10 MM, 1.40 MM HEIGHT, ROHS COMPLIANT, LQFP-64 |
| 文件頁數(shù)： | 4/42頁 |
| 文件大?。?/td> | 396K |
| 代理商： | TDA7705TR |
第1頁第2頁第3頁當(dāng)前第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
Function description
TDA7705
Doc ID 15938 Rev 8
2.12
IO interface pins
The TDA7705 has the following IO pins:
The pins labeled GPIO0, 1, 2 and 3 (pins 43 to 40) are reserved.
The pin PLLTEST output voltage can be freely programmed via software and be used to
drive switches if needed by the application.
All the inputs are voltage-tolerant up to 3.5 V . The outputs can drive currents up to 0.5 mA
from the internal 3.3 V supply line.
2.13
Serial interface
The device is controlled with a standard I2C bus or SPI interface.
Through the serial bus the processing parameters can be modifed and the signal quality
parameters and the RDS information can be read out.
The operation of the device is handled through high level commands sent by the main car-
radio P through the serial interface, which allow to simplify the operations carried out in the
main P. The high level commands include among others:
●
set frequency (which allows to avoid computing the PLL divider factors);
●
start seek (the seek operation can be carried out by the TDA7705 in a completely
autonomous fashion);
●
RDS seek/search (jumps to AF and quality measurements are automatically
sequenced).
2.13.1
Serial interface choice / boot mode
The device can communicate with the main P with two different standard serial protocols:
SPI and I2C. The configuration is chosen by setting the proper value (0V or 3.3V) at pins 35
and 39 and it is latched (e.g. made effective) when the RSTN line transitions from low to
high (when RSTN is low, the IC is in reset mode).
The voltage level forced to pins 35 and 39 must be released to start the system operation a
suitable time after the RSTN line has gone high.
The list of configurations is shown in the following table:
PLLTEST
pin 2
general purpose output
SPI_CS
pin 34
serial communication with P
SPI_MISO
pin 35
serial communication with P
SDA/MOSI
pin 36
serial communication with P
SCL/CLK
pin 37
serial communication with P
RDSINT
pin 39
serial communication with P
RSTN
pin 45
reset pin driven by P
相關(guān)PDF資料 |
PDF描述 |
|---|---|
| TDA7705 | AUDIO/VIDEO DEMODULATOR, PQFP64 |
| TDA7718NTR | SPECIALTY CONSUMER CIRCUIT, PDSO28 |
| TDA7718N | SPECIALTY CONSUMER CIRCUIT, PDSO28 |
| TDA7719 | 2 CHANNEL(S), TONE CONTROL CIRCUIT, PDSO28 |
| TDA7719TR | 2 CHANNEL(S), TONE CONTROL CIRCUIT, PDSO28 |
相關(guān)代理商/技術(shù)參數(shù) |
參數(shù)描述 |
|---|---|
| TDA7706 | 功能描述:調(diào)諧器 HD Radio Chipset Dual RF Front-End IC 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: |
| TDA7706CB | 制造商:STMicroelectronics 功能描述:MID INFOTAINMENT - Trays |
| TDA7706M | 制造商:STMicroelectronics 功能描述:SADA_Highly integrated tuner for AM/FM car-radio |
| TDA7716N | 功能描述:雙向可控硅 AID Car Radio LQFP 44 10x10x1 RoHS:否 制造商:STMicroelectronics 開啟狀態(tài) RMS 電流 (It RMS):16 A 不重復(fù)通態(tài)電流:120 A 額定重復(fù)關(guān)閉狀態(tài)電壓 VDRM:600 V 關(guān)閉狀態(tài)漏泄電流（在 VDRM IDRM 下）:5 uA 開啟狀態(tài)電壓: 保持電流（Ih 最大值）:45 mA 柵觸發(fā)電壓 (Vgt):1.3 V 柵觸發(fā)電流 (Igt):1.75 mA 最大工作溫度: 安裝風(fēng)格:Through Hole 封裝 / 箱體:TO-220AB |
| TDA7717 | 功能描述:音頻放大器 3 Band Car Audio Processor 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(fēng)格:SMD/SMT 封裝 / 箱體:TQFP-64 封裝:Reel |
發(fā)布緊急采購，3分鐘左右您將得到回復(fù)。