TUA6036 Ver la hoja de datos (PDF) - Infineon Technologies
Número de pieza
componentes Descripción
Fabricante
TUA6036 Datasheet PDF : 65 Pages
| |||
TUA6034, TUA6036
TAIFUN
Product Description
1
Product 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 set-
top-box applications.
The mixer-oscillator block includes three balanced mixers (one mixer with an
unbalanced high-impedance input and two mixers with a balanced low-impedance
input), two 2-pin asymmetrical oscillators for the LOW and the MID band, one 4-pin
symmetrical oscillator for the HIGH band, an IF amplifier, a reference voltage, and a
band switch.
The PLL block with four independently selectable chip addresses forms a digitally
programmable phase locked loop. With a 4 MHz quartz crystal, the PLL permits precise
setting of the frequency of the tuner oscillator up to 1024 MHz in increments of 31.25,
50, 62.5, 125, 142.86 or 166.7 kHz. The tuning process is controlled by a microprocessor
via an I2C bus. The device has 5 output ports, one of them (P4) can also be used as ADC
input port. A flag is set when the loop is locked. The lock flag can be read by the
processor via the I2C bus.
1.1
Features
1.1.1 General
• Suitable for PAL, NTSC, DVB, ISDB-T 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
1.1.2 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
1.1.3 IF-Amplifier
• 4 IF pins to connect a 2 pole bandpass
Specification
10
V 2.51, 2006-01-11
Share Link: 