Datenblatt-Suchmaschine für elektronische Bauteile |
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TDA9859 Datenblatt(PDF) 7 Page - NXP Semiconductors |
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TDA9859 Datenblatt(HTML) 7 Page - NXP Semiconductors |
7 / 24 page 2001 Jul 11 7 Philips Semiconductors Product specification Universal hi-fi audio processor for TV TDA9859 FUNCTIONAL DESCRIPTION The TDA9859 consists of the following functions: • Source select switching block • Loudspeaker channel with effect controls • Two port outputs for general purpose • I2C-bus control. Source select switching block The TDA9859 selects and switches the input signals from three stereo or six mono sources MAIN, AUX and SCART (see Fig.1) to the outputs SCART and loudspeaker (crossbar-switching; Table 4). The main channel (LINE outputs) is looped outside the circuit (from pins MOUTR and MOUTL to pins LINR and LINL), so signals can be used as LINE output or a surround sound decoder can be inserted. Effect controls ‘Linear stereo’, ‘stereo with spatial effect (30% or 52% anti-phase crosstalk)’ and ‘forced mono with or without pseudo-stereo effect’ are controlled by three bits. A muting of 85 dB is provided. Loudspeaker channel Volume control is divided into volume control common and volume control left/right. The common part ( −40 to +15 dB) controls the left and right channels simultaneously; the left/right part ( −23 to 0 dB) controls the volume of left and right channels independently. Treble control provides a control range from −12 to +12 dB and bass control from −12 to +15 dB. Extended bass control can be provided by an external T-network (see Fig.1) from −15 to +19 dB (in 2 dB steps). I2C-bus control All control settings are stored in subaddress registers. Data transmission is simplified by auto-incrementing the subaddresses. The on-chip Power-on reset sets the mute bit to active, so both the SCART and the loudspeaker outputs are muted. The muting can be switched off by writing a ‘0’ (non-muted) into the mute control bits. LIMITING VALUES In accordance with the Absolute Maximum Rating System (IEC 60134). Notes 1. Equivalent to discharging a 200 pF capacitor through a 0 Ω series resistor (machine model). 2. Equivalent to discharging a 100 pF capacitor through a 1.5 k Ω series resistor (human body model). SYMBOL PARAMETER CONDITIONS MIN. MAX. UNIT VP supply voltage (pin VP) − 010 V Vn voltage on all pins, ground excluded − 0VP V IO output current at LOUT and SCOUT pins −− 2.5 mA at port output pins −− 1.5 mA Ptot total power dissipation −− 850 mW Tamb ambient temperature − 070 °C Tstg storage temperature −−25 +150 °C Ves electrostatic handling voltage all pins; note 1 −±300 V all pins; note 2 −±2000 V |
Ähnliche Teilenummer - TDA9859 |
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Ähnliche Beschreibung - TDA9859 |
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