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AD73322LYR Datasheet(PDF) 11 Page - Analog Devices |
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AD73322LYR Datasheet(HTML) 11 Page - Analog Devices |
11 / 49 page AD73322L Rev. A | Page 10 of 48 PIN CONFIGURATIONS AND FUNCTION DESCRIPTIONS VFBN2 28 VINN2 27 VFBP2 26 VINP2 25 VOUTN1 24 VOUTP1 23 VOUTN2 22 VOUTP2 21 AVDD1 20 AGND1 19 SE 18 SDI 17 SDIFS 16 SDOFS 15 VINP1 1 VFBP1 2 VINN1 3 VFBN1 4 REFOUT 5 REFCAP 6 AVDD2 7 AGND2 8 DGND 9 DVDD 10 RESET 11 SCLK 12 MCLK 13 SDO 14 AD73322L TOP VIEW (Not to Scale) Figure 6. 28-Lead Wide Body 1 2 3 4 5 6 7 8 9 10 11 12 13 14 28 27 26 25 24 23 22 21 20 19 18 17 16 15 AD73322L TOP VIEW VFBP1 VINN1 VFBN1 AVDD2 REFCAP REFOUT VINP1 VINN2 VFBP2 VINP2 VOUTN2 VOUTP1 VOUTN1 AGND2 DGND DVDD SDO SCLK RESET VOUTP2 AVDD1 AGND1 SDOFS MCLK SDIFS SDI SE VFBN2 Figure 7. 28-Lead Thin Shrink 44 43 42 41 40 39 38 37 36 35 34 32 VOUTN1 31 VOUTP1 30 NC 27 NC 28 VOUTP2 29 VOUTN2 33 NC 26 AVDD1 25 AVDD1 24 AGND1 23 AGND1 2 REFCAP 3 AVDD2 4 AVDD2 7 AGND2 6 AGND2 5 AGND2 1 REFOUT 8 AGND2 9 DGND 10 DGND 11 DVDD NC = NO CONNECT 12 13 14 15 16 17 18 19 20 21 22 PIN 1 AD73322L TOP VIEW (Not to Scale) Figure 8. 44-Lead Plastic Thin Quad Flatpack Table 6. Pin Function Descriptions Mnemonic Function VINP1 Analog Input to the inverting input amplifier on Channel 1’s positive input. VFBP1 Feedback Connection from the output of the inverting amplifier on Channel 1’s positive input. When the input amplifiers are bypassed, this pin allows direct access to the positive input of Channel 1’s sigma-delta modulator. VINN1 Analog Input to the inverting input amplifier on Channel 1’s negative input. VFBN1 Feedback connection from the output of the inverting amplifier on Channel 1’s negative input. When the input amplifiers are bypassed, this pin allows direct access to the negative input of Channel 1’s sigma-delta modulator. REFOUT Buffered Reference Output, which has a nominal value of 1.2 V. REFCAP A bypass capacitor to AGND2 of 0.1 µF is required for the on-chip reference. The capacitor should be fixed to this pin. AVDD2 Analog Power Supply Connection. AGND2 Analog Ground/Substrate Connection2. DGND Digital Ground/Substrate Connection. DVDD Digital Power Supply Connection. RESET Active Low Reset Signal. This input resets the entire chip, resetting the control registers and clearing the digital circuitry. |
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