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TEA1085 데이터시트(PDF) 5 Page - NXP Semiconductors |
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TEA1085 데이터시트(HTML) 5 Page - NXP Semiconductors |
5 / 32 page March 1992 5 Philips Semiconductors Preliminary specification Listening-in circuit for line-powered telephone sets TEA1085; TEA1085A PIN CONFIGURATION SYMBOL PIN DESCRIPTION VSS 1 negative supply SUP 2 positive supply SDC 3 supply amplifier decoupling SREF 4 supply reference input LSI1 5 loudspeaker amplifier input 1 LSI2 6 loudspeaker amplifier input 2 GSC2 7 logic input 2 for gain select GSC1 8 logic input 1 for gain select LAI − 9 Larsen limiter preamplifier inverting input LAI + 10 Larsen limiter preamplifier non-inverting input QLA 11 Larsen limiter preamplifier output LLC 12 Larsen limiter capacitor THL2 13 Larsen limiter residual threshold level THL1 14 Larsen limiter attack delay threshold level DTI 15 Larsen limiter detector input DCA 16 Larsen limiter detector current adjustment SIC 17 Larsen limiter current stabilizer VA 18 VBB voltage adjustment PD 19 power-down input MUTE 20 MUTE input QLS1 21 loudspeaker amplifier output 1 QLS2 22 loudspeaker amplifier output 2 DLC 23 dynamic limiter capacitor VBB 24 stabilized supply decoupling Fig.2 Pin configuration. handbook, halfpage VSS SUP SDC SREF LSI1 LSI2 GSC2 GSC1 LAI − LAI + QLA LLC VBB DLC QLS2 QLS1 PD VA MUTE SIC DCA DTI THL1 THL2 1 2 3 4 5 6 7 8 9 10 11 12 24 23 22 21 20 19 18 17 16 15 14 13 TEA1085 TEA1085A MLA415 |
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