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AD1848K датащи(PDF) 8 Page - Analog Devices |
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AD1848K датащи(HTML) 8 Page - Analog Devices |
8 / 28 page AD1848K REV. 0 –8– Analog Signals Pin Name PLCC TQFP I/O Description L_LINE 30 21 I Left Line Input. Line level input for the left channel. R_LINE 27 18 I Right Line Input. Line level input for the right channel. L_MIC 29 20 I Left Microphone Input. Microphone input for the left channel. This signal can be either line level or –20 dB from line level. R_MIC 28 19 I Right Microphone Input. Microphone input for the right channel. This signal can be either line level or –20 dB from line level. L_AUX1 39 30 I Left Auxiliary #1 Line Input R_AUX1 42 33 I Right Auxiliary #1 Line Input L_AUX2 38 29 I Left Auxiliary #2 Line Input R_AUX2 43 34 I Right Auxiliary #2 Line Input L_OUT 40 31 O Left Line Level Output R_OUT 41 32 O Right Line Level Output Miscellaneous Pin Name PLCC TQFP I/O Description XTAL1I 17 8 I 24.576 MHz Crystal #1 Input XTAL1O 18 9 O 24.576 MHz Crystal #1 Output XTAL2I 21 12 I 16.9344 MHz Crystal #2 Input XTAL2O 22 13 O 16.9344 MHz Crystal #2 Output PWRDWN 23 14 I Power-Down Signal. Active LO control places AD1848K in its lowest power consumption mode. All sections of the AD1848K, including the digital interface, are shut down and consume minimal power. INT 57 44 O Host Interrupt Pin. This signal is used to notify the host that the DMA Current Count Register has underflowed. XCTL1:O 56 & 58 43 & 45 O External Control. These signals reflect the current status of register bits inside the AD1848K. They can be used for signaling or to control external logic. VREF 32 23 O Voltage Reference. Nominal 2.25 volt reference available for dc-coupling and level-shifting. VREF should not be used where it will sink or source current. VREF_F 33 24 I Voltage Reference Filter. Voltage reference filter point for external bypassing only. L_FILT 31 22 I Left Channel Filter Input. This pin requires a 1.0 µF capacitor to analog ground for proper operation. R_FILT 26 17 I Right Channel Filter Input. This pin requires a 1.0 µF capacitor to analog ground for proper operation. N/C 46–52, 55 37–39, 42 No Connect. Do not connect. Power Supplies Pin Name PLCC TQFP I/O Description VCC 35 & 36 26 & 27 I Analog Supply Voltage (+5 V) GNDA 34 & 37 25 & 28 I Analog Ground VDD 1, 7, 15, 19, 6, 10, 15, 36, I Digital Supply Voltage (+5 V) 24, 45, 54 41, 56 GNDD 2, 8, 16, 20, 7, 11, 16, 35, I Digital Ground 25, 44, 53, 64 40, 51, 63 |
Аналогичный номер детали - AD1848K |
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Аналогичное описание - AD1848K |
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