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U2309B

TEMIC Semiconductors
Part Number U2309B
Manufacturer TEMIC Semiconductors
Description VHF/ UHF-Tuner-IC
Published Jul 8, 2007
Detailed Description U2309B VHF/ UHF-Tuner-IC Description This tuner IC requires a power supply of 9 V and performs the function of three sep...
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U2309B
U2309B


Overview
U2309B VHF/ UHF-Tuner-IC Description 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 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.
DataSheet4U.
com 3 4 6 5 7 8 10 9 11 19 2 Osc.
A Osc.
B Osc.
C Voltage stabiliser Band switch L.
O.
12 27 28 Mixer output SAW–filter driver 17 18 14 RF Band A 25 24 23 Band B 22 26 21 Band C 95 10717 13 20 16 15 Figure 1.
Block diagram TELEFUNKEN Semiconductors Rev.
A2, 29-May-96 1 (8) U2309B Pin Description Osc A, base GND (common) Osc A, coll.
Osc B, base Osc B, coll.
Osc B, coll.
Osc B, base Osc C, base Osc C, coll.
1 2 3 4 5 6 7 8 9 28 L.
O.
out 27 L.
O.
out 26 GND (RF) 25 RF in, A 24 RF in, A 23 RF in, B 22 RF in, B 21 RF in, C Pin 1 2 3 4, 7 5, 6 8, 11 9, 10 12 13, 14 15, 16 17, 18 19 20, 21 22, 23 24, 25 26 27, 28 Symbol Osc A, base GND (common) Osc A, coll.
Osc B, base Osc B, coll.
Osc C, base Osc C, coll.
Band sw.
SAWF, out SAWF, inp.
Mix out VS RF in, C RF in, B RF in, A GND (RF) L.
O.
out Function Oscillator band A, base Ground, common Oscillator band A, collector Oscillator band B, bases Oscillator band B, collectors Oscillator band C, bases Oscillator band C, collectors Tri-state band switch SAW filter driver outputs SAW filter driver inputs Mixer o...


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