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參數資料
| 型號： | TUA6041-2 |
| 廠商： | INFINEON TECHNOLOGIES AG |
| 元件分類： | 調諧器 |
| 英文描述： | 3-BAND, VIDEO TUNER, QCC48 |
| 封裝： | VQFN-48 |
| 文件頁數： | 2/66頁 |
| 文件大?。?/td> | 926K |
| 代理商： | TUA6041-2 |
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Data Sheet
10
Revision 3.1, 2006-12-19
TUA 6041-2
LIGHTNING
Product Description
2
Product Description
The TUA 6041-2 integrates the mixer-oscillator, variable AGC output amplifier, digitally
programmable phase lock loop (PLL) not requiring an external high voltage buffer and a
digital alignment feature. Furthermore, the TUA 6041-2 integrates a buffered RF AGC,
programmable clock signals for an external DC-DC up converter along with open drain
DAC outputs used for automatic digital alignment.
The integrated mixer oscillator function comprises of three balanced mixers. The first
mixer has an unbalanced high impedance input while the other two have balance low
impedance inputs. The tuner also has firstly, 2-pin asymmetric oscillators for both Low
and Mid bands and secondly a 4-pin symmetrical oscillator for High band operations
including a band selector switch.
The output signal from the mixer is amplified via a SAW filter driver followed by variable
gain amplifier stage in order to achieve a constant output level used for A/D conversion.
All functions can be programmed with up to four different IC addresses. Also, the PLL
connected to a 4-16 MHz reference crystal which is buffered on-chip, allows the setting
of the tuner oscillator with a minimum step size of 20 kHz. A Lock flag will be set once
the PLL is locked and communicated via the I2C/3-Wire bus.
The complete control setting of the IC is done by a microprocessor via the I2C/3-Wire
bus. The device also has three output ports of which P2 can be configured as a
programmable output voltage port.
2.1
Features
2.1.1
General
Supply voltage range 3 to 5.5 V.
Suitable for PAL, NTSC, SECAM, DVB-T/H/C, DAB, ISDB-T, ATSC and L-Band.
Wideband and Narrow AGC detectors for tuner RF AGC
5 programmable take-over points
2 programmable time constants.
Low phase noise.
Full ESD protection.
2.1.2
Mixer/Oscillator
High impedance mixer input (common emitter) for LOW band.
Low impedance mixer input (common base) for MID band.
Low impedance mixer input (common base) for HIGH band.
2 pin oscillator for LOW band.
2 pin oscillator for MID band.
4 pin oscillator for HIGH band.
Oscillator for HIGH band divided by 3 available for MID band mixer.
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