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TDA1555Q bảng dữ liệu(PDF) 4 Page - NXP Semiconductors |
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4 / 11 page May 1992 4 Philips Semiconductors Product specification 4 x 11 W single-ended or 2 x 22 W power amplifier with distortion detector TDA1555Q PINNING FUNCTIONAL DESCRIPTION The TDA1555Q contains four identical amplifiers with differential input stages (two inverting and two non-inverting) and can be used for single-ended or bridge applications. The gain of each amplifier is fixed at 20 dB (26 dB in BTL). Special features of this device are: Mute/stand-by switch • low stand-by current (< 100 µA) • low mute/stand-by switching current (low cost supply switch) • mute facility Distortion detector • At onset of clipping of one or more channels the distortion detector (pin 15) becomes active. This information can be used to drive a sound processor or DC volume control to decrease the input signal and so limit distortion. RATINGS Limiting values in accordance with the Absolute Maximum System (IEC 134) 1 NINV1 non-inverting input 1 9 n.c. not connected 2 INV1 inverting input 1 10 OUT3 output 3 3 GND ground (signal) 11 GND2 power ground 2 (substrate) 4 RR supply voltage ripple rejection 12 OUT4 output 4 5VP1 positive supply voltage 1 13 VP2 positive supply voltage 2 6 OUT1 output 1 14 M/SS mute/stand-by switch 7 GND1 power ground 1 (substrate) 15 DD distortion detector 8 OUT2 output 2 16 INV2 inverting input 2 17 NINV2 non-inverting input 2 PARAMETER CONDITIONS SYMBOL MIN. MAX. UNIT Supply voltage operating VP − 18 V non-operating VP − 30 V load dump protected during 50 ms; tr ≥ 2.5 ms VP − 45 V Non-repetitive peak output current IOSM − 6A Repetitive peak output current IORM − 4A Storage temperature range Tstg −55 + 150 °C Junction temperature Tj − 150 °C AC and DC short-circuit-safe voltage VPSC − 18 V Energy handling capability at outputs VP = 0 V − 200 mJ Reverse polarity VPR − 6V Total power dissipation see Fig.2 Ptot − 60 W |
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