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AD1990ACPZ Scheda tecnica(PDF) 7 Page - Analog Devices |
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AD1990ACPZ Scheda tecnica(HTML) 7 Page - Analog Devices |
7 / 16 page Preliminary Technical Data AD199x Rev. PrA – 1/20/05 | Page 7 of 16 PIN CONFIGURATIONS AND FUNCTIONAL DESCRIPTIONS Table 4. Pin Function Descriptions LFCSP Pin No. PSOP Pin No. Name In/Out Description 1,2,3 3 PGND1 Negative power supply for high power transistors A2 and B2 4,5,6 2 OUTL+ O Output of high power transistor pair, left channel positive polarity 7,8,9,10 1,36 PVDD1 Positive power supply for high power transistors, left channel high-side 11,12,13 35 OUTL- O Output of high power transistor pair, left channel negative polarity 14,15,16 34 PGND1 Negative power supply for high power transistors, left channel low-side 17 33 ERR2 O Active low thermal shutdown error output 18 32 ERR1 O Active low thermal warning error output 19 31 ERR0 O Active low overcurrent error output 20 DCTRL2 I Non-overlap time setting MSB 21 DCTRL1 I Non-overlap time setting 22 DCTRL0 I Non-overlap time setting LSB 23,26 29,30 DGND Negative power supply for low power digital circuitry 24,25 28 DVDD Positive power supply for low power digital circuitry 27 27 CLKI I Clock input for 256 × fS audio modulator clock 28 26 CLKO O Inverted version of CLKI for use with external crystal oscillator 29 25 MUTE I Active low mute input 30 24 RST/PDN I Active low reset/power-down input 31 23 PGA1 I Programmable gain amplifier (PGA) gain MSB 32 22 PGA0 I Programmable gain amplifier (PGA) gain LSB 33,34,35 21 PGND2 Negative power supply for right channel high power transistors 36,37,38 20 OUTR- O Output of high power transistor pair, right channel negative polarity 39,40,41,42 18,19 PVDD2 Positive power supply for right channel high power transistors 43,44,45 17 OUTR+ O Output of high power transistor pair, right channel positive polarity 46,47,48 16 PGND2 Negative power supply for right channel high power transistors 49 15 AGND Negative power supply for low power analog circuitry 50 14 NFR+ I Right channel negative feedback – positive input 51 13 NFR- I Right channel negative feedback – negative input 52 NC Not Connected. This pin is not used and should be left floating 53 12 AINR I Analog input for right channel 54 NC Not Connected. This pin is not used and should be left floating 55 11 REF_FILT O Filter pin for bandgap reference - should be bypassed to AGND 56 10 AGND Negative power supply for low power analog circuitry 57 9 AVDD Positive power supply for low power analog circuitry 58 NC Not Connected. This pin is not used and should be left floating 59 NC Not Connected. This pin is not used and should be left floating 60 8 AINL I Analog input for left channel 61 4 NC Not Connected. This pin is not used and should be left floating 62 7 NFL- I Left channel negative feedback – negative input 63 6 NFL+ I Left channel negative feedback – positive input 64 5 MONO I Mono mode (drive left and right output transistors from same modulator) |
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