RXD-315-KH2 RXD-418-KH2 RXD-433-KH2 WIRELESS MADE SIMPLE KH2 SERIES RECEIVER / DECODER DATA GUIDE DESCRIPTION The KH2 Series is ideally suited for volume use in OEM applications such as remote control / 1.430 command and keyless entry. It combines a high-performance RF receiver with an on-board decoder. When paired with a matching KH2 RF RECEIVER/DECODER Series transmitter / encoder module, OEM 0.630 RXD-418-KH2 transmitter, or LC or LR Series transmitter and LOT 1000 Holtek HT640 encoder combination, a highly reliable wireless link is formed that is capable of transferring the status of eight parallel inputs for 0.180 distances of up to 3000 feet. Ten tri-state 10) address lines provide 59,049 (3 different addresses for security and uniqueness. Housed Figure 1: Package Dimensions in a compact SMD package, the KH2 module utilizes an advanced synthesized architecture to achieve an unmatched blend of performance, size, range and cost. No external RF components are required except an antenna, making design integration straightforward. FEATURES n Low cost n Advanced synthesized architecture n Long range n On-board decoder n Received data output n 8 parallel binary outputs n Transmission validation 10 n No production tuning n 3 addresses for security and uniqueness n No external RF components required (except an antenna) n Ultra-low power consumption n Pin-compatible with original KH n Compact SMD package ORDERING INFORMATION APPLICATIONS INCLUDE PART DESCRIPTION n Remote Control / Command TXE-315-KH2 Transmitter / Encoder 315MHz n Keyless Entry TXE-418-KH2 Transmitter / Encoder 418MHz n Garage / Gate Openers TXE-433-KH2 Transmitter / Encoder 433MHz n Lighting Control RXD-315-KH2 Receiver / Decoder 315MHz n Call Systems RXD-418-KH2 Receiver / Decoder 418MHz n Home / Industrial Automation n Fire / Security Alarms RXD-433-KH2 Receiver / Decoder 433MHz n Remote Status Monitoring EVAL-***-KH2 Basic Evaluation Kit n Wire Elimination *** = Frequency Receivers are supplied in tubes of 20 pcs. Revised 7/21/11ELECTRICAL SPECIFICATIONS ABSOLUTE MAXIMUM RATINGS Parameter Designation Min. Typical Max. Units Notes Supply Voltage V -0.3 to +3.6 VDC CC POWER SUPPLY Supply Voltage V , Using Resistor -0.3 to +5.2 VDC CC Operating Voltage V 2.7 3.0 3.6 VDC CC Any Input or Output Pin -0.3 to +3.6 VDC With Dropping Resistor 4.3 5.0 5.2 VDC 1,5 RF Input 0 dBm Supply Current I 4.0 5.2 7.0 mA CC Operating Temperature -30 to +70 C Power-Down Current I 20.0 28.0 35.0 A 5 PDN Storage Temperature -45 to +85 C RECEIVER SECTION Soldering Temperature +225C for 10 seconds Receive Frequency Range: F C *NOTE* Exceeding any of the limits of this section may lead to permanent RXD-315-KH2 315 MHz damage to the device. Furthermore, extended operation at these maximum RXD-418-KH2 418 MHz ratings may reduce the life of this device. RXD-433-KH2 433.92 MHz Center Frequency Accuracy -50 +50 kHz PERFORMANCE DATA LO Feedthrough -80 dBm 2,5 IF Frequency F 10.7 MHz 5 IF These performance parameters Noise Bandwidth N 280 kHz 3DB are based on module operation at 5VDC 28 1 NC ANT Data Rate 100 10,000 bps 330 25C from a 3.0VDC supply unless 27 D0 GND 3VDC 2 External Data Output: D1 NC 26 Resistor 3 otherwise noted. Figure 2 4 Logic Low V 0.0 VDC 3 GND RSSI 25 OL illustrates the connections 5 VCC A9 24 Logic High V 3.0 VDC 3 OH 6 PDN A8 23 necessary for testing and Power-Down Input: D2 A7 7 22 operation. It is recommended all D3 A6 Logic Low V 0.4 VDC 8 21 IL 9 D4 A5 20 ground pins be connected to the Logic High V V -0.4 VDC IH CC 10 DATA A4 19 Receiver Sensitivity -106 -112 -118 dBm 4 ground plane. The pins marked NC 11 VT A3 18 D5 A2 RSSI / Analog: 12 17 have no electrical connection and D6 A1 13 16 Dynamic Range 80 dB 5 are designed only to add physical 14 D7 A0 15 Analog Bandwidth 50 5,000 Hz 5 support. Gain 16 mV / dB 5 Figure 2: Test / Basic Application Circuit Voltage With No Carrier 1.5 V 5 ANTENNA PORT TYPICAL PERFORMANCE GRAPHS RF Input Impedance R 50 5 IN TIMING Receiver Turn-On Time: Via V 3.0 7.0 10.0 mSec 5,6 CC PDN Supply Via PDN 0.04 0.25 0.50 mSec 5,6 Max. Time Between Transitions 10.0 mSec 5 RX DATA RX Data DECODER SECTION TX Data Length 26 bits 3x Average Data Duty Cycle 50% Decoder Oscillator F 70 kHz ENC Output Drive Current 0.6 1.0 1.2 mA 7 ENVIRONMENTAL Figure 3: Turn-On Time from V Figure 4: Turn-On Time from PDN Operating Temperature Range -40 +70 C5 CC 5.40 Table 1: KH2 Series Receiver Specifications 5.35 Notes RFIN >-35dBm 5.30 1. The KH2 can utilize a 4.3 to 5.2VDC supply provided a 330-ohm resistor is placed in series with VCC. 2. Into a 50-ohm load. 5.25 3. When operating from a 5V source, it is important to consider that the output will swing to well less than With Dropping Resistor 5 volts as a result of the required dropping resistor. Please verify that the minimum voltage will meet the 5.20 NO RFIN high threshold requirement of the device to which data is being sent. -5 4. For BER of 10 at 1,200bps. 5.15 5. Characterized, but not tested. 5.10 6. Time to valid data output. 2.7 2.8 2.9 3.0 3.1 3.2 3.3 3.4 3.5 3.6 3.7 3.8 3.9 4.0 4.1 4.2 4.3 4.4 4.5 4.6 4.7 4.8 4.9 5.0 5.1 5.2 Supply Voltage (VDC) 7. Maximum drive capability of data outputs. Figure 6: RSSI Response Time Figure 5: Consumption vs. Supply Page 3 Page 2 Supply Current (mA)