Infrared Remote Control Receiver Module LTM-97 Series Features Compact package High immunity from ambient light Good performance against electric field disturbance 5 volt supply voltage and low power consumption Pin out can be changed according to customer's requirement Description D E T E L O S B O The LTM-97 series are miniaturized receivers for infrared remote control systems. It is a single unit type module which incorporates a PIN diode and a receiving preamplifier IC. The demodulated output signal can directly be decoded by a microprocessor. It has excellent sensitivity and reliable function even in disturbed working environment. Detecting Window Package Dimension LTM-97AS-XX Side A LTM-97AT-XX Top B LTM-97BS-XX Side C LTM-97BT-XX Top D LTM-97CS-XX Side C LTM-97CT-XX Top D LTM-97DS-XX Side C LTM-97DT-XX Top D LTM-97ES-XX Side C LTM-97ET-XX Top D Device No. 3 Pin Out Function 2 1 Gnd Vcc Vout Gnd Vcc Vout Vcc Vout Gnd Vout Vcc Gnd Vout Gnd Vcc INFRARED PRODUCTS Device No. XX: Carrier frequencies for 33, 36, 38, 40, 56.8 kHz Package Dimensions A. LTM-97AS-XX B. LTM-97AT-XX 10-53 M97.p65 Page 53 2000/7/11, ¤U¤È 12:11 Adobe PageMaker 6.5C/Win C. LTM-97BS/CS/DS/ES-XX D. LTM-97BT/CT/DT/ET-XX D E T E L O S B O Note: 1. All dimensions are in millimeters (inches). 0.25mm (0.01") unless otherwise noted. 2. Tolerance is 3. XX: Frequency Special Forming (Option) We provide lead forming service if it's necessary. "*" Dimension can be changed according to customer's requirement A. LTM-97AS-XX# B. LTM-97AT-XX# 10-54 M97.p65 Page 54 2000/7/11, ¤U¤È 12:11 Adobe PageMaker 6.5C/Win C. LTM-97BS/CS/DS/ES-XX# D. LTM-97BT/ CT/DT/ET -XX# D E T E L O S B O F. LTM-97XT-XXH INFRARED PRODUCTS E. LTM-97XS-XXF Note: 1. All dimensions are in millimeters (inches). 0.25mm (0.01") unless otherwise noted. 2. Tolerance is 3. XX: Frequency Absolute Maximum Ratings (Ta=25 ) Symbol Rating Unit Supply Voltage Parameter Vcc 6.0 V Operating Temperature Topr -20 ~~ +70 Storage Temperature Tstg -25 ~~ +85 Soldering Temperature Tsd 260 Recommended Operating Condition Parameter Symbol Min Max Unit Supply Voltage Vcc 4.7 5.3 V 10-55 M97.p65 Page 55 2000/7/11, ¤U¤È 12:11 Adobe PageMaker 6.5C/Win Block Diagram D E T E L O S B O Application Circuit Electrical Characteristics Item Symbol Current Consumption I CC Wave Length of the Max. Sensitivity Smax Reception Distance L Conditions No signal input, Vcc=5V Min Rating Typ 1.1 Max 2.5 940 At the ray axis 10 The ray receiving surface at a vertex and in relation to the ray axis: a: in the range of 30 cone b: in the range of 45 cone 8 6 Unit mA nm m Low Level Output Voltage VOL High Level Output Voltage VOH Low Level Pulse Width tW L Specified by the output tWL period within a range from 5cm to the reception distance 400 600 800 S High Level Pulse Width tW H Specified by the output tWH period within a range from 5cm to the reception distance 400 600 800 S Noise Suppression NQ 25-50 No outside light 0.5 4.5 V V 0 Pulse Note: Detailed condition please refer to measuring method. 10-56 M97.p65 Page 56 2000/7/11, ¤U¤È 12:12 Adobe PageMaker 6.5C/Win Measuring Method A. Reception distance measurement Fig. 1 Reception distance measuring condition D E T E L O S B O B. Standard transmitter INFRARED PRODUCTS The transmitter whose output is adjusted up become Vo=400m Vp-p by output waveform as show in Fig. 2 and the measuring method as shown in Fig. 3 is specified as the standard transmitter. However, the infrared diode to be used for the transmitter should be p=940nm, =50nm. Fig. 2 Output wave form Fig. 3 Measuring method 10-57 M97.p65 Page 57 2000/7/11, ¤U¤È 12:12 Adobe PageMaker 6.5C/Win C. Pulse width measurement The following wave forms are transmitter output and our receiver module's output. D E T E L O S B O Fig. 4 Output pulse 10-58 M97.p65 Page 58 2000/7/11, ¤U¤È 12:12 Adobe PageMaker 6.5C/Win