This is a high-quality infrared sensor with three high-speed PIN phototransistors and a full-wave band amplifier. It is compatible with all standard IR remote control data formats and supports all principal transmission codes. To build your control project, you can use it with the Infrared Remote Control. Since it mates well with embedded electronics, it is commonly used with IR remotes.
It operates at 38kHz frequency and has an operating voltage of 2.7vDC to 5.5vDC. The lead pitch of the remote control stands at 2.54mm and the reception angle at 45 degrees.
VS1838b Datasheet
According to its datasheet, some of the main specs of the chip are:
- Support 3-5V input voltage
- On-board VS1838B high sensitivity infrared receiving head
- On-board RC filter, work more stable
- Output matching TTL, CMOS level digital signal
- PCB size: 21.2 (mm) x 9.3mm
- Reception Angle 45 Degrees
- Infrared frequency is 38kHz 1838 NEC code
- Reception distance up to 18m
The following are the key application areas for the chip:
- Optical switch
- Light detecting portion of remote control of AV instruments like Audio, TV, and DVD, Home appliances like the fan and air conditioner, Multimedia equipment, CATV set-top boxes
VS1838b pinout
VS1838b has three pinouts. Pin 1 is the ‘out’ pin which gives the sequence depending on the IR signal that has been detected. Pin 2 is the ground pin, which is connected to the ground of the circuit and pin 3 is the VCC pin which connects to the 5.5V, 2.5V and +5V.
You can see the VS1838b pinout diagram below.
VS1838b Equivalents and Replacement Details
The chip can read output Alternatives from home remotes, pick up the IR signals, process the signals, and release the output on pin three, the VCC pin. Alternative sensors for VS1838b are TSOP17-xx and IR Receiver Led.
