ZHCSMB7A October 2020 – May 2022 ADC3641 , ADC3642 , ADC3643
PRODUCTION DATA
Figure 5-1 RSB Package,40-Pin WQFN,Top View| PIN | I/O | DESCRIPTION | |
|---|---|---|---|
| NAME | NO. | ||
| INPUT/REFERENCE | |||
| AINM | 13 | I | Negative analog input, channel A |
| AINP | 12 | I | Positive analog input, channel A |
| BINP | 39 | I | Positive analog input, channel B |
| BINM | 38 | I | Negative analog input, channel B |
| REFBUF | 4 | I | 1.2 V external voltage reference input for use with internal reference buffer. Internal 100 kΩ pull-up resistor to AVDD. This pin is also used to configure default operating conditions. |
| REFGND | 3 | I | Reference ground input, 0 V |
| VCM | 8 | O | Common-mode voltage output for the analog inputs, 0.95 V |
| VREF | 2 | I | External voltage reference input |
| CLOCK | |||
| CLKM | 7 | I | Negative differential sampling clock input for the ADC |
| CLKP | 6 | I | Positive differential sampling clock input for the ADC |
| CONFIGURATION | |||
| PDN/SYNC | 1 | I | Power down/Synchronization input. This pin can be configured via the SPI interface. Active high. This pin has an internal 21 kΩ pull-down resistor. |
| RESET | 9 | I | Hardware reset. Active high. This pin has an internal 21 kΩ pull-down resistor. |
| SCLK | 35 | I | Serial interface clock input. This pin has an internal 21 kΩ pull-down resistor. |
| SDIO | 10 | I | Serial interface data input and output. This pin has an internal 21 kΩ pull-down resistor. |
| SEN | 16 | I | Serial interface enable. Active low. This pin has an internal 21 kΩ pull-up resistor to AVDD. |
| DIGITAL INTERFACE | |||
| DA0 | 17 | O | CMOS digital data output. |
| DA1 | 18 | I/O | CMOS digital data output. Used as FCLK frame clock output for serialized CMOS output modes. Configured using SPI. |
| DA2 | 19 | O | CMOS digital data output. |
| DA3 | 20 | O | CMOS digital data output. |
| DA4 | 22 | O | CMOS digital data output. |
| DA5 | 23 | O | CMOS digital data output. |
| DA6 | 24 | O | CMOS digital data output. |
| DB0 | 34 | O | CMOS digital data output. |
| DB1 | 33 | I/O | CMOS digital data output. Used as DCLKIN bit clock input for serialized CMOS output modes. Configured using SPI. |
| DB2 | 32 | O | CMOS digital data output. |
| DB3 | 31 | O | CMOS digital data output. |
| DB4 | 29 | O | CMOS digital data output. |
| DB5 | 28 | O | CMOS digital data output. |
| DB6 | 27 | O | CMOS digital data output. |
| DCLK | 25 | O | CMOS output for data bit clock. |
| POWER SUPPLY | |||
| AVDD | 5,15,36 | I | Analog 1.8-V power supply |
| GND | 11,14,37,40, PowerPAD | I | Ground, 0 V |
| IOGND | 26 | I | Ground, 0 V for digital interface |
| IOVDD | 21,30 | I | 1.8-V power supply for digital interface |