ZHCSEA4C May 2015 – December 2020 ADS54J40
PRODUCTION DATA
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. |