Datasheet (Asahi Kasei Microdevices) - 5
| Manufacturer | Asahi Kasei Microdevices |
| Description | LED Driver and Sensor AFE for NDIR Gas Sensing |
| Pages / Page | 34 / 5 — 6. Pin Configurations and Functions. 6.1. Pin Configurations. 6.2. … |
| File Format / Size | PDF / 1.3 Mb |
| Document Language | English |
6. Pin Configurations and Functions. 6.1. Pin Configurations. 6.2. Functions
Model Line for this Datasheet
Text Version of Document
[AK9723AJ]
6. Pin Configurations and Functions 6.1. Pin Configurations
AK9723AJ (Top view) Figure 6.1 Pin Configurations
6.2. Functions
Table 6.1 Pin Functions Pin No. Name I/O Functions 1 SCL I I2C clock input pin. This pin is open drain pin output (NMOS type). I2C data input/output pin. This pin is open drain pin output (NMOS 2 SDA I/O type). Interrupt pin. INTN pin is active low at the ADC output is ready for read. 3 INTN O This pin is open drain output (NMOS type). 4 PDN I Power down pin. When PDN pin = “H”, The AK9723AJ can operate. 5 TEST1 I TEST pin. TEST pin must be connected to VSS 6 TEST2 I TEST pin. TEST pin must be connected to VSS 7 TEST3 I TEST pin. TEST pin must be connected to VSS 8 TEST4 I TEST pin. TEST pin must be connected to VSS 9 SINA1 I IR photo ditector1 connection pin (anode) 10 SINC1 I IR photo ditector1 connection pin (cathode) 11 SINC2 I IR photo ditector2 connection pin (cathode) 12 SINA2 I IR photo ditector2 connection pin (anode) 13 LEDO O LED driver output pin 14 FVDD - LED driver power supply pin 15 VSS - Ground pin 16 AVDD - Power supply pin 018015111-E-01 2019/8 - 5 -
6. Pin Configurations and Functions 6.1. Pin Configurations
AK9723AJ (Top view) Figure 6.1 Pin Configurations
6.2. Functions
Table 6.1 Pin Functions Pin No. Name I/O Functions 1 SCL I I2C clock input pin. This pin is open drain pin output (NMOS type). I2C data input/output pin. This pin is open drain pin output (NMOS 2 SDA I/O type). Interrupt pin. INTN pin is active low at the ADC output is ready for read. 3 INTN O This pin is open drain output (NMOS type). 4 PDN I Power down pin. When PDN pin = “H”, The AK9723AJ can operate. 5 TEST1 I TEST pin. TEST pin must be connected to VSS 6 TEST2 I TEST pin. TEST pin must be connected to VSS 7 TEST3 I TEST pin. TEST pin must be connected to VSS 8 TEST4 I TEST pin. TEST pin must be connected to VSS 9 SINA1 I IR photo ditector1 connection pin (anode) 10 SINC1 I IR photo ditector1 connection pin (cathode) 11 SINC2 I IR photo ditector2 connection pin (cathode) 12 SINA2 I IR photo ditector2 connection pin (anode) 13 LEDO O LED driver output pin 14 FVDD - LED driver power supply pin 15 VSS - Ground pin 16 AVDD - Power supply pin 018015111-E-01 2019/8 - 5 -
