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TDA6501TT датащи(PDF) 5 Page - NXP Semiconductors |
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TDA6501TT датащи(HTML) 5 Page - NXP Semiconductors |
5 / 37 page 9397 750 15057 © Koninklijke Philips Electronics N.V. 2005. All rights reserved. Product data sheet Rev. 02 — 14 June 2005 5 of 37 Philips Semiconductors TDA6500; TDA6501 5 V mixer/oscillator and synthesizer for PAL and NTSC standards 7. Functional description 7.1 General TDA6500TT and TDA6501TT are programmable 2-mixer, 3-oscillator and synthesizer MOPLLs intended for pure 3-band tuner concepts. The device includes two double balanced mixers for the low and mid/high bands and three oscillators for the low, mid and high bands respectively. The band limits for PAL tuners are shown in Table 3. Other functions are an IF amplifier, a wide-band AGC detector and a PLL synthesizer. Two pins are available between the mixer output and the IF amplifier input to enable IF filtering for improved signal handling. Bit P0 enables Port P0 and the low band mixer and oscillator (see Table 4). Bit P1 enables Port P1, the mid/high band mixer and the mid band oscillator. Bit P2 enables Port P2 and bit P3 enables Port P3. When Ports P0 and P1 are disabled, the mid/high band mixer and the high band oscillator are enabled. MOSCOUT 4 29 mid band oscillator output OSCGND 3 30 oscillator ground P0 23 10 PMOS open-drain port 0 to select low band operation P1 24 9 PMOS open-drain port 1 to select mid band operation P2 26 7 PMOS open-drain general purpose port 2 P3 22 11 PMOS open-drain general purpose port 3 P4 17 16 NPN open-collector general purpose port 4 P6/ADC 18 15 NPN open-collector general purpose port 6 or ADC input PLLGND 13 20 digital ground RFGND 29 4 RF ground SCL 20 13 serial clock input SDA 19 14 serial data input and output VCC 10 23 supply voltage VT 15 18 tuning voltage output XTAL 14 19 crystal oscillator input Table 2: Pin description …continued Symbol Pin Description TDA6500TT TDA6501TT Table 3: Low, mid and high band limits Band Input fRFpix (MHz) Oscillator fosc (MHz) Min Max Min Max Low 45.25 154.25 84.15 193.15 Mid 161.25 439.25 200.15 478.15 High 455.25 855.25 494.15 894.15 |
Аналогичный номер детали - TDA6501TT |
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Аналогичное описание - TDA6501TT |
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