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U2300B

TEMIC Semiconductors
Part Number U2300B
Manufacturer TEMIC Semiconductors
Description VHF/UHF-Tuner-IC
Published Aug 14, 2016
Detailed Description TELEFUNKEN Semiconductors U2300B VHF/ UHF-Tuner-IC Description This tuner IC requires a power supply of 12 V and perf...
Datasheet PDF File U2300B PDF File

U2300B
U2300B

Overview
TELEFUNKEN Semiconductors U2300B VHF/ UHF-Tuner-IC Description This tuner IC requires a power supply of 12 V and performs the function of three separate oscillators and mixers, SAWF-driver, L.
O.
-output and tri-state band switch.
Applications are 12 V TV- and VCR-tuners.
Features 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.
-output 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 allows to design economical 3-band tuners Block Diagram 13 4 65 7 8 10 9 11 19 2 Osc.
A Osc.
B Osc.
C Voltage Stabiliser Band Switch L.
O.
12 Mixer Output SAW–Driver 27 28 17 18 14 Band A 25 24 Rev.
A1: 16.
10.
1995 Band B RF Band C 23 22 26 21 20 Figure 1.
Block diagram 16 15 13 95 10717 1 (8) U2300B TELEFUNKEN Semiconductors Pin Description Osc A, base 1 GND (common) 2 Osc A, coll.
3 Osc B, base 4 Osc B, coll.
5 Osc B, coll.
6 Osc B, base 7 Osc C, base 8 Osc C, coll.
9 Osc C, coll.
10 Osc C, base 11 Band sw.
12 SAWF, out 13 SAWF, out 14 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 20 RF in, C 19 VS 18 Mix out 17 Mix out 16 SAWF, inp.
15 SAWF, inp.
95 10886 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 Function Osc A, base Oscillator band A, base GND Ground, common (common) Osc A, coll.
Oscillator band A, collector Osc B, base Oscillator band B, bases Osc B, coll.
Oscillator band B, collectors Osc C, base Oscillator band C, bases Osc C, coll.
Oscillator band C, collectors Band sw.
Tri-state band switch SAWF, out SAW filter driver outputs SAWF, inp.
SAW filter driver inputs Mix out Mixer outputs, open collector VS ...


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