TDA7338D Overview
This encoder is embedded inside a 20-SOIC (0.295, 7.50mm Width) package.Packing the encoder in a Tube case is recommended to ensure that it is protected.I have mounted this motor encoder in the way of the Surface Mount axis.There are two types of Audio Decoder types that can be identified.This motor encoder is motor encoder of the TDA7338 family and is based on that.When switching power supplies are used, the digital power of the 7.5V~10.2V component of the optical encoder is applied.In the optical encoder there are 20 terminations that are available.In total, the rotary encoders has 20 pins in total.There is a Surface Mount mount for it.It is equipped with 20 pins on the encoder in question.Using a maximum 85°C value ensures that the encoder reader runs as stable as possible.The minimum working temperature of this rotary encoder must not be less than -40°C.Ideally, 7.5V should be higher than the required minimum supply voltage.There is a maximum supply voltage (Vsup) of a encoder motor where 10.2V is reached.
TDA7338D Features
In 20-SOIC (0.295, 7.50mm Width) package
Mounting Type: Surface Mount
Base Part Number: TDA7338
20 pins

TDA7338D Applications
There are a lot of STMicroelectronics
TDA7338D Encoders, Decoders, Converters applications.

Remote Status Monitoring
Lighting Control
Low-voltage operation
Extended temperature range
Low power consumption
UART Interfacing
Infrared Data Communications
Audio
Automotive
Broadband

Mount	Surface Mount
Mounting Type	Surface Mount
Package / Case	20-SOIC (0.295, 7.50mm Width)
Number of Pins	20
Packaging	Tube
JESD-609 Code	e4
Part Status	Obsolete
Moisture Sensitivity Level (MSL)	3 (168 Hours)
Number of Terminations	20
Type	Audio Decoder
Terminal Finish	Nickel/Palladium/Gold (Ni/Pd/Au)
Max Operating Temperature	85°C
Min Operating Temperature	-40°C
HTS Code	8542.39.00.01
Terminal Position	DUAL
Terminal Form	GULL WING
Peak Reflow Temperature (Cel)	NOT SPECIFIED
Terminal Pitch	1.27mm
Time@Peak Reflow Temperature-Max (s)	NOT SPECIFIED
Base Part Number	TDA7338
Pin Count	20
Qualification Status	Not Qualified
Supply Voltage-Max (Vsup)	10.2V
Temperature Grade	INDUSTRIAL
Supply Voltage-Min (Vsup)	7.5V
Nominal Supply Current	20mA
Voltage - Supply, Digital	7.5V~10.2V
Length	12.8mm
Height Seated (Max)	2.65mm
Width	7.5mm
RoHS Status	ROHS3 Compliant