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AD6643BCPZRL7-250 Folha de dados(PDF) 11 Page - Analog Devices |
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AD6643BCPZRL7-250 Folha de dados(HTML) 11 Page - Analog Devices |
11 / 40 page Data Sheet AD6643 Rev. C | Page 11 of 40 PIN CONFIGURATIONS AND FUNCTION DESCRIPTIONS 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 CLK+ CLK– SYNC DNC DNC DNC DNC DNC DNC DRVDD DNC DNC DNC DNC D0– (LSB) D0+ (LSB) NOTES 1. DNC = DO NOT CONNECT. DO NOT CONNECT TO THIS PIN. 2. THE EXPOSED THERMAL PADDLE ON THE BOTTOM OF THE PACKAGE PROVIDES THE ANALOG GROUND FOR THE PART. THIS EXPOSED PADDLE MUST BE CONNECTED TO GROUND FOR PROPER OPERATION. PDWN OEB CSB SCLK SDIO OR+ OR– D10+ (MSB) D10– (MSB) D9+ D9– DRVDD D8+ D8– D7+ D7– 48 47 46 45 44 43 42 41 40 39 38 37 36 35 34 33 AD6643 INTERLEAVED PARALLEL LVDS TOP VIEW (Not to Scale) PIN 1 INDICATOR Figure 4. Pin Configuration (Top View), LFCSP Interleaved Parallel LVDS Table 8. Pin Function Descriptions for the Interleaved Parallel LVDS Mode Pin No. Mnemonic Type Description ADC Power Supplies 10, 19, 28, 37 DRVDD Supply Digital Output Driver Supply (1.8 V Nominal). 49, 50, 53, 54, 59, 60, 63, 64 AVDD Supply Analog Power Supply (1.8 V Nominal). 4 to 9, 11 to 14, 55, 56, 58 DNC Do Not Connect. Do not connect to these pins. 0 AGND, Exposed Paddle Ground Analog Ground. The exposed thermal paddle on the bottom of the package provides the analog ground for the device. This exposed paddle must be connected to ground for proper operation. ADC Analog 51 VIN+A Input Differential Analog Input Pin (+) for Channel A. 52 VIN−A Input Differential Analog Input Pin (−) for Channel A. 62 VIN+B Input Differential Analog Input Pin (+) for Channel B. 61 VIN−B Input Differential Analog Input Pin (−) for Channel B. 57 VCM Output Common-Mode Level Bias Output for Analog Inputs. This pin should be decoupled to ground using a 0.1 μF capacitor. 1 CLK+ Input ADC Clock Input—True. 2 CLK− Input ADC Clock Input—Complement. Digital Input 3 SYNC Input Digital Synchronization Pin. Slave mode only. Digital Outputs 15 D0− (LSB) Output Channel A/Channel B LVDS Output Data 0—True. 16 D0+ (LSB) Output Channel A/Channel B LVDS Output Data 0—Complement. 18 D1+ Output Channel A/Channel B LVDS Output Data 1—True. 17 D1− Output Channel A/Channel B LVDS Output Data 1—Complement. 21 D2+ Output Channel A/Channel B LVDS Output Data 2—True. 20 D2− Output Channel A/Channel B LVDS Output Data 2—Complement. 23 D3+ Output Channel A/Channel B LVDS Output Data 3—True. 22 D3− Output Channel A/Channel B LVDS Output Data 3—Complement. 27 D4+ Output Channel A/Channel B LVDS Output Data 4—True. |
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