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U2320B

器件名称: U2320B
功能描述: VHF/UHF Tuner-IC
文件大小: 159.87KB    共7页
生产厂商: TEMIC
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简  介:U2320B VHF/UHF Tuner-IC Description This tuner IC requires a power supply of 12 V and performs the function of two separate oscillators and mixers, SAW-filter driver and dual state band switch. Features D Frequency range from 48 to 860 MHz D Band A: balanced high impedance mixer input and amplitude controlled oscillator 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 D Band B: balanced low impedance mixer input and symmetrical oscillator Block Diagram 1 3 4 6 5 7 15 2 Osc. A Osc. B Voltage stabiliser Band switch 8 Mixer output SAW–filter driver 13 14 10 RF Band A 19 18 20 17 Figure 1. Band B 95 10713 9 16 12 11 Ordering Information Extended Type Number U2320B-FLG3 Package SO20 plastic package Remarks Taped and reeled TELEFUNKEN Semiconductors Rev. A1, 29-May-96 1 (7) U2320B Pin Description GND (RF) 1 RF in, A RF in, A 2 3 20 Osc A, base Pin 1 2 3 4, 7 5, 6 8 9, 10 11, 12 13, 14 15 16, 17 18, 19 20 Symbol Osc A, base GND (common) Osc A, coll. Osc B, base Osc B, coll. Band sw. SAWF, out SAWF, inp. Mix, out VS RF in, B RF in, A GND (RF) Function Oscillator band A, base Ground, common Oscillator band A, collector Oscillator band B, bases Oscillator band B, collectors Dual-state band switch SAW filter driver outputs SAW filter driver input Mixer outputs, open collector Supply voltage Vs RF inputs, band B RF inputs, band A Ground, RF part 19 GN……
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