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AD9284BCPZRL7-250 Fiches technique(PDF) 9 Page - Analog Devices |
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AD9284BCPZRL7-250 Fiches technique(HTML) 9 Page - Analog Devices |
9 / 25 page AD9284 Data Sheet Rev. A | Page 8 of 24 PIN CONFIGURATION AND FUNCTION DESCRIPTIONS 1 2 3 4 5 6 7 8 9 10 11 12 AVDD AVDD DNC DNC RBIAS DNC DRGND DRVDD D0– (LSB) D0+ (LSB) D1– D1+ AVDD CLK+ CLK– CSB SDIO/PWDN SCLK OE DRGND DRVDD D7+ (MSB) D7– (MSB) 35 AVDD 36 34 33 32 31 30 29 28 27 26 25 AD9284 TOP VIEW (Not to Scale) PIN 1 INDICATOR NOTES 1. DNC = DO NOT CONNECT. DO NOT CONNECT TO THIS PIN. 2. THE EXPOSED PADDLE MUST BE SOLDERED TO THE PCB ANALOG GROUND TO ENSURE PROPER FUNCTIONALITY AND HEAT DISSIPATION, NOISE, AND MECHANICAL STRENGTH BENEFITS. Figure 3. Pin Configuration Table 8. Pin Function Descriptions Pin No. Mnemonic Type Description ADC Power Pins 1, 2, 35, 36, 37, 40, 42, 44, 45, 48 AVDD Supply Analog Power Supply (1.8 V Nominal). 8, 27 DRVDD Supply Digital Output Driver Supply (1.8 V Nominal). 7, 28 DRGND Ground Digital Output Ground. 0 AGND Ground Analog Ground. Pin 0 is the exposed thermal pad on the bottom of the package. This is the only ground connection, and it must be soldered to the PCB analog ground to ensure proper functionality and heat dissipation, noise, and mechanical strength benefits. ADC Analog Pins 39 VIN+A Input Differential Analog Input Pin (+) for Channel A. 38 VIN−A Input Differential Analog Input Pin (−) for Channel A. 46 VIN+B Input Differential Analog Input Pin (+) for Channel B. 47 VIN−B Input Differential Analog Input Pin (−) for Channel B. 43 VREF Input/output Voltage Reference Input/Output. 5 RBIAS Input/output External Reference Bias Resistor. Connect 10 kΩ from RBIAS to AGND. 41 VCM Output Common-Mode Level Bias Output for Analog Inputs. 34 CLK+ Input ADC Clock Input—True. 33 CLK− Input ADC Clock Input—Complement. Digital Input 29 OE Input Digital Enable (Active Low) to Tristate Output Data Pins. Digital Outputs 26 D7+ (MSB) Output Channel A/Channel B LVDS Output Data 7—True. 25 D7− (MSB) Output Channel A/Channel B LVDS Output Data 7—Complement. 24 D6+ Output Channel A/Channel B LVDS Output Data 6—True. 23 D6− Output Channel A/Channel B LVDS Output Data 6—Complement. 22 D5+ Output Channel A/Channel B LVDS Output Data 5—True. 21 D5− Output Channel A/Channel B LVDS Output Data 5—Complement. 20 D4+ Output Channel A/Channel B LVDS Output Data 4—True. 19 D4− Output Channel A/Channel B LVDS Output Data 4—Complement. |
Numéro de pièce similaire - AD9284BCPZRL7-250 |
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Description similaire - AD9284BCPZRL7-250 |
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