TUA9001

General Description

The TUA6034, TUA6036 ’TAIFUN’ device combines a mixer-oscillator block with a digitally programmable phase locked loop (PLL) for use in TV and VCR tuners and in settop-box applications.

Features

General
• Suitable for PAL, NTSC, DVB and ATSC
• Wideband AGC detector for internal tuner AGC
− 5 programmable take-over points
− 2 programmable time constants
• Low phase noise
• Full ESD protection
• Qualified according to JEDEC for consumer applications

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

IF-Amplifier

• 4 IF pins to connect a 2 pole bandpass
• Symmetrical IF preamplifier with low output impedance able to drive a compensated SAW filter (500Ω//40pF)

PLL

• 4 independent I2C addresses
• I2C bus protocol compatible with 3.3 V and 5V micro-controllers up to 400 kHz
• High voltage VCO tuning output
• 4 PNP ports
• 1 NPN port/ADC input
• Internal LOW/MID/HIGH band switch
• Bus controlled power down mode
• Lock-in flag
• 6 programmable reference divider ratios (24, 28, 32, 64, 80, 128)
• 4 programmable charge pump currents

Application

• The IC is suitable for PAL, NTSC, DVB-C, DVB-T, ISDB-T and ATSC tuners. The focus is on digital terrestrial.
• The AGC stage makes the tuner AGC independent of the Video-IF AGC