This tuner IC requires a power supply of 9 V and performs the function of three separate oscillators an mixers, SAWF-driver, L.O.-output and tri-state band switch. Additional to TV-tuner application this IC is usable for DAB (Digital Audio Broadcast) tuners. Features D 9 V supply voltage D Frequency range from 48 to 860 MHz D Band A: balanced high impedance.
D 9 V supply voltage D Frequency range from 48 to 860 MHz D Band A: balanced high impedance mixer input and amplitude controlled oscillator D Band B + C: balanced low impedance mixer input and symmetrical oscillator D Balanced L. O.-outputs for prescalers or PLL D SAW filter driver with low impedance output D Voltage regulator for stable operating characteristics D ESD protection on all pins except oscillator pins and RF-inputs Benefits D The integration of 3 bands and the small SSO28 package allows to design very small and economical 3-band tuners with high performance. Block Diagram 1 www..
No. | Partie # | Fabricant | Description | Fiche Technique |
---|---|---|---|---|
1 | U2300B |
TEMIC Semiconductors |
VHF/UHF-Tuner-IC | |
2 | U2305B |
TEMIC Semiconductors |
VHF/ UHF-Tuner-IC | |
3 | U231 |
Siliconix |
monolithic dual n-channel JFET | |
4 | U231 |
InterFET |
N-Channel JFET | |
5 | U232 |
Siliconix |
monolithic dual n-channel JFET | |
6 | U232 |
InterFET |
N-Channel JFET | |
7 | U233 |
Siliconix |
monolithic dual n-channel JFET | |
8 | U233 |
InterFET |
N-Channel JFET | |
9 | U234 |
Siliconix |
monolithic dual n-channel JFET | |
10 | U234 |
InterFET |
N-Channel JFET | |
11 | U235 |
Siliconix |
monolithic dual n-channel JFET | |
12 | U235 |
InterFET |
N-Channel JFET |