- 您现在的位置：买卖IC网 > PDF目录98305 > TUA6045-2 (INFINEON TECHNOLOGIES AG) 3-BAND, VIDEO TUNER, QCC48 PDF资料下载
参数资料
| 型号： | TUA6045-2 |
| 厂商： | INFINEON TECHNOLOGIES AG |
| 元件分类： | 调谐器 |
| 英文描述： | 3-BAND, VIDEO TUNER, QCC48 |
| 封装： | VQFN-48 |
| 文件页数： | 17/64页 |
| 文件大小： | 890K |
| 代理商： | TUA6045-2 |
第1页第2页第3页第4页第5页第6页第7页第8页第9页第10页第11页第12页第13页第14页第15页第16页当前第17页第18页第19页第20页第21页第22页第23页第24页第25页第26页第27页第28页第29页第30页第31页第32页第33页第34页第35页第36页第37页第38页第39页第40页第41页第42页第43页第44页第45页第46页第47页第48页第49页第50页第51页第52页第53页第54页第55页第56页第57页第58页第59页第60页第61页第62页第63页第64页
Data Sheet
24
Revision 3.1, 2006-12-19
TUA 6045-2
TAIFUN 3
Functional Description
In I
2C-bus mode four different chip addresses can be set by appropriate DC levels at pin
CAS (Chip Address Select), while in 3-Wire mode the chip is addressed by a low active
enable signal at pin EN.
The content of the bus telegram (serial data format) is controlled by software
programming and assigned to the registers of the functional units according to the
several sub addresses. The most significant bit (MSB) of the data protocol is shifted in
first.
The clock is generated by the processor (input pin SCL/Clock), while pin SDA/Data
functions as an input or an output (open drain, external pull-up resistor) depending on
the direction of the data (write or read mode). Both inputs have schmitt-trigger circuits
with hysteresis and furthermore a low-pass characteristic, which suppress a certain
noise level on the bus lines and enhance so the noise immunity of the combi-bus.
A detailed description of the chip address organization in I
2C-mode as well as the used
sub addresses of the data registers is given in chapter 5.2 "Bus Interface" on page 41
- and the programmable I
2C/3-Wire bus data format is shown in chapter 5.3 "Bus Data
3.4.6
DC/DC clock output
To drive a bipolar NPN switching transistor of an external DC/DC converter directly, a
programmable DC/DC clock generator is integrated. The clock frequency and the duty
cycle of the DC/DC clock generator can be set over the I
2C/3-Wire bus as shown in
3.4.7
Power-on Reset, Stand-by Condition
While applying the supply voltage, integrated power-on reset circuits ensure a defined
state after initial power-up. The required programming data will be set to default values.
When V
CC fall below approximately 1.2 V (typ.) the power-on resets go active and tie all
write data registers to their power-on defaults (= power-down reset). While power-on
reset is active no programming is possible.
The power-on flags (POFx) are set at power-on and when V
VCCx falls below appr. 1.2 V
(typ.). They will be reset at the end of a READ operation of the status register.
By programmable stand-by control bits it’s possible to reduce the current consumption
of the IC up to 99%. In the full stand-by mode only bus interface is staying active and the
current consumption is reduced below 200
A. After power-on reset only bus interface
and XTAL-oscillator with bandgap are active and the current consumption is about
2.6 mA (typ.).
相关PDF资料 |
PDF描述 |
|---|---|
| TVP5010CPFP | COLOR SIGNAL DECODER, PDSO80 |
| TVP5010PFP | COLOR SIGNAL DECODER, PQFP80 |
| TVP5020CPFP | COLOR SIGNAL DECODER, PQFP80 |
| TVP5020 | COLOR SIGNAL DECODER, PQFP80 |
| TVP5022 | COLOR SIGNAL DECODER, PQFP80 |
相关代理商/技术参数 |
参数描述 |
|---|---|
| TUA60452XT | 制造商:Infineon Technologies AG 功能描述:Tuners TV 1.492GMHz 48-Pin VQFN |
| TUA6045XT | 制造商:Infineon Technologies AG 功能描述:GREEN, TERRESTRIAL |
| TUA6100 | 制造商:未知厂家 制造商全称:未知厂家 功能描述: |
| TUA6100B6 | 制造商:INFINEON 制造商全称:Infineon Technologies AG 功能描述:Components for Satellite Receiver Units |
| TUA6110XS | 制造商:未知厂家 制造商全称:未知厂家 功能描述:RF Mixer |
发布紧急采购，3分钟左右您将得到回复。