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TDA6500TT Datasheet(PDF) 3 Page - NXP Semiconductors |
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TDA6500TT Datasheet(HTML) 3 Page - NXP Semiconductors |
3 / 40 page 2003 Jun 05 3 Philips Semiconductors Product specification 5 V mixer/oscillator and synthesizer for PAL and NTSC standards TDA6500TT; TDA6501TT 1 FEATURES • Single-chip 5 V mixer/oscillator and synthesizer for TV and VCR tuners • I2C-bus protocol compatible with 3.3 V and 5 V microcontrollers: – Address + 6 data bytes transmission – Address + 1 status byte (I2C-bus read mode) – Four independent I2C-bus addresses. • Two PMOS open-drain ports with 5 mA source capability to switch high band and FM sound trap (P2 and P3) • One PMOS open-drain port with 20 mA source capability to switch the mid band (P1) • One PMOS open-drain port with 10 mA source capability to switch the low band (P0) • Five step, 3-bit Analog-to-Digital Converter (ADC) and NPN open-collector general purpose port with 5 mA sinking capability (P6) • NPN open-collector general purpose port with 5 mA sinking capability (P4) • Internal AGC flag • In-lock flag • 33 V tuning voltage output • 15-bit programmable divider • Programmable reference divider ratio: 64, 80 or 128 • Programmable charge pump current: 60 or 280 µA • Varicap drive disable • Balanced mixer with a common emitter input for the low band (single input) • Balanced mixer with a common base input for the mid and high bands (balanced input) • 2-pin asymmetrical oscillator for the low band • 2-pin asymmetrical oscillator for the mid band • 4-pin symmetrical oscillator for the high band • Frequency ranges: see Table 1 • IF preamplifier with asymmetrical 75 Ω output impedance to drive a SAW filter (500 Ω/40 pF) • Wide-band AGC detector for internal tuner AGC: – Five programmable take-over points – Two programmable time constants. 2 APPLICATIONS • TV and VCR tuners • Specially suited for switched concepts, all systems • Specially suited for strong off-air reception. |
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