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| 型号： | TUA6041-2 |
| 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： | 3/66页 |
| 文件大小： | 926K |
| 代理商： | TUA6041-2 |
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Data Sheet
11
Revision 3.1, 2006-12-19
TUA 6041-2
LIGHTNING
Product Description
2.1.3
SAW Filter Driver
Symmetrical IF preamplifier with low output impedance able to drive a compensated
SAW filter (500
//40 pF).
2.1.4
IF AGC Amplifier
Symmetrical variable gain IF output amplifier with low noise, high linearity,
high dynamic range.
2.1.5
PLL
4 independent I
2C addresses, or 3-Wire bus mode.
I
2C bus protocol compatible with 3.3 V and 5V micro-controllers up to 400 kHz.
High voltage VCO tuning output.
3 PNP ports, one of them realized as programmable voltage output.
1 clock output for external DC/DC upconversion to generate the tuning supply
voltage, may be used as NPN port.
Stand-by programmable for functional blocks allows customized ramping.
Internal LOW/MID/HIGH band switch.
Lock-in flag.
4 to 16 MHz crystal oscillator with programmable output buffer.
programmable reference divider ratios.
4 charge pump currents, programmable in 15 steps.
2.1.6
DAC outputs
Open drain outputs, load resistors to Vcc, 5V or tuning supply voltage.
Overvoltage protection for operation from tuning supply voltage.
2.1.7
IF switch and Loop through for tuner alignment
2 programmable switches to bypass the bandpass/SAW filter to facilitate the tuner
pre-stage alignment.
2.2
Application
The IC is suitable for PAL, NTSC, SECAM, DVB-T/H/C, DAB, ISDB-T, ATSC and L-
Band tuners.
The integrated RF AGC control has wide band detectors at the mixer inputs and
a narrowband detector at the saw filter driver output.
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