ZHCSEA4C May 2015 – December 2020 ADS54J40
PRODUCTION DATA
Figure 6-1 RMP Package, 72-Pin VQFNP,
Top View| PIN | I/O | DESCRIPTION | |
|---|---|---|---|
| NAME | NO. | ||
| CLOCK, SYSREF | |||
| CLKINM | 28 | I | Negative differential clock input for the ADC. |
| CLKINP | 27 | I | Positive differential clock input for the ADC. |
| SYSREFM | 34 | I | Negative external SYSREF input. Connect this pin to GND if not used. |
| SYSREFP | 33 | I | Positive external SYSREF input. Connect this pin to 1.8 V if not used. |
| CONTROL, SERIAL | |||
| PDN | 50 | I/O | Power down, active low pin. Can be configured via
an SPI register setting. Can be configured to fast overrange output for channel A through the SPI. This pin has an internal 20kΩ pulldown resistor. |
| RESET | 48 | I | Hardware reset; active high. This pin has an internal 20-kΩ pulldown resistor. |
| SCLK | 6 | I | Serial interface clock input |
| SDIN | 5 | I | Serial interface data input |
| SDOUT | 11 | O | Serial interface data output. Can be configured to fast overrange output for channel B through the SPI. |
| SEN | 7 | I | Serial interface enable |
| DATA INTERFACE | |||
| DA0M | 62 | O | JESD204B serial data negative outputs for channel A |
| DA1M | 59 | ||
| DA2M | 56 | ||
| DA3M | 54 | ||
| DA0P | 61 | O | JESD204B serial data positive outputs for channel A |
| DA1P | 58 | ||
| DA2P | 55 | ||
| DA3P | 53 | ||
| DB0M | 65 | O | JESD204B serial data negative outputs for channel B |
| DB1M | 68 | ||
| DB2M | 71 | ||
| DB3M | 1 | ||
| DB0P | 66 | O | JESD204B serial data positive outputs for channel B |
| DB1P | 69 | ||
| DB2P | 72 | ||
| DB3P | 2 | ||
| SYNC | 63 | I | Synchronization input for the JESD204B port |
| INPUT, COMMON MODE | |||
| INAM | 41 | I | Differential analog negative input for channel A |
| INAP | 42 | I | Differential analog positive input for channel A |
| INBM | 14 | I | Differential analog negative input for channel B |
| INBP | 13 | I | Differential analog positive input for channel B |
| VCM | 22 | O | Common-mode voltage, 2.1 V. Note that analog inputs are internally biased to this pin through 600 Ω (effective), no external connection from the VCM pin to the INxP or INxM pin is required. |
| POWER SUPPLY | |||
| AGND | 18, 23, 26, 29, 32, 36, 37 | I | Analog ground |
| AVDD | 9, 12, 15, 17, 25, 30, 35, 38, 40, 43, 44, 46 | I | Analog 1.9-V power supply |
| AVDD3V | 10, 16, 24, 31, 39, 45 | I | Analog 3.0-V power supply for the analog buffer |
| DGND | 3, 52, 60, 67 | I | Digital ground |
| DVDD | 8, 47 | I | Digital 1.9-V power supply |
| IOVDD | 4, 51, 57, 64, 70 | I | Digital 1.15-V power supply for the JESD204B transmitter |
| NC, RES | |||
| NC | 19-21 | — | Unused pins, do not connect |
| RES | 49 | I | Reserved pin. Connect to DGND. |