TUA6020

Product Summary

The TUA6020 is a 5 V mixer/oscillator and synthesizer for analog and digital TV and VCR tuners. The device combines a digitally programmable phase locked loop (PLL), with a mixer-oscillator block including two balanced mixers and oscillators. The TUA6020 is suitable for PAL tuner in TV- and VCR-sets or set-top receivers for analog TV and Digital Video Broadcasting.

Parametrics

TUA6020 absolute maximum ratings: (1)Supply voltage, VCC: -0.3 to 6 V; (2)Junction temperature, TJ: +150℃ max; (3)Storage temperature,TStg: -40 to +125℃; (4)Thermal resistance(junction to ambient), RthJA: 120 K/W max; (5)CP, VCP: -0.3 to 3 V; ICP for PLL: 1 mA max ; (6)Crystal oscillator pin XTAL for PLL: VXTAL: VCC V max; IXTAL: -5 mA max ; (7)Bus input/output SDA, VSDA for PLL: -0.3 to VCC V for PLL; (8)Bus output current SDA, ISDA(L) for PLL: 5 mA max at open collector; (9)Bus input SCL, VSCL for PLL: -0.3 to VCC V; (10)Chip address switch AS, VAS for PLL: -0.3 to VCC V ; (11)Tuning voltage output (loop filter), VT for PLL: -0.3 to 35 V; (12)Port outputs PLOW, PMID, PHIGH, VP for PLL: -0.3 to VCC V; IP(L): -1 to 25 mA at tmax = 0.1 sec.t 5.5 V; (13)Total port output current, IP(L) for PLL: 40 mA max at tmax = 0.1 sec. at 5.5 V; (14)Mixer inputs LOW/MID, Vi: -0.3 to 3 V for mixer-oscillator; (15)Mixer inputs HIGH, Vi: 2 V max; Ii: -5 to 6 mA for mixer-oscillator; (16)Oscillator base voltage, VB: -0.3 to 3 V for mixer-oscillator; (17)Oscillator collector voltage, VC: VCC V max for mixer-oscillator; (18)ESD-Protection all pins, VESD: 2 kV max.

Features

TUA6020 features: (1)Suitable for analog and digital terrestrial TV tuner; (2)Full ESD protection ; (3)Mixer/Oscillator: High impedance mixer input for LOW/MID band; Low impedance mixer input for HIGH band; 4 pin oscillator for LOW/MID band; 4 pin oscillator for HIGH band; (4)IF-Amplifier: balanced SAW preamplifier; Low output impedance; (5)PLL: PLL with short lock-in time; High voltage VCO tuning output; Fast I2C bus; 3 NPN bandswitch buffers; internal LOW-MID/HIGH switch; Lock-in flag; Power-down reset; Programmable reference divider ratios: 24, 64, 80, 128; Programmable charge pump current.

Diagrams