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U2309B-FLG3

器件名称: U2309B-FLG3
功能描述: VHF/ UHF-Tuner-IC
文件大小: 189.81KB    共8页
生产厂商: TEMIC
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简  介: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 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 D Band B + C: balanced low impedance mixer input and symmetrical oscillator 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 Osc. A 3 4 6 5 7 8 10 9 11 19 2 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,……
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器件名 功能描述 生产厂商
U2309B-FLG3 VHF/ UHF-Tuner-IC TEMIC
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