器件名称: SM5028RF
功能描述: RF ENCODER
文件大小: 45.38KB 共8页
简 介:SM5028RF
SAMHOP Microelectronics Corp.
212 RF ENCODER
GENERAL DESCRIPTION
SM5028RF is a RF remote control encoder paired with SM5038RF. It utilizes CMOS technology. The chip has 12 bits of 2-state address pins that provides 212 codes. SM5028RF/SM5038RF pair is suitable for use on remote controller.
FEATURES
* * * * * CMOS technology Low power consumption Wide range operating voltage, Vcc = 2.4~12V Up to four data bits High noise immunity
APPLICATION
* * * * * * Car Security Garage Door Ceiling Fan Home Security/Automatic Toys Wireless doorbell
PIN ASSIGNMENTS (TOP VIEW)
A0 A1 A2 A3 A4 A5 A6 A7 Vss
1 2 3 4 5 6 7 8 9
18 17 16 15 14 13 12 11 10 SM5028RF
VDD Dout OSC1 OSC2 TE A11/D0 A10/D1 A9/D2 A8/D3
NC A0 A1 A2 A3 A4 A5 A6 A7 Vss
1 2 3 4 5 6 7 8 9 10 SM5028S
20 19 18 17 16 15 14 13 12 11
NC VDD Dout OSC1 OSC2 TE A11/D0 A10/D1 A9/D2 A8/D3
Page 1
V1.0
SM5028RF
SAMHOP Microelectronics Corp.
212 RF ENCODER
BLOCK DIAGRAM
OSC2 OSC1
TE
OSCILLATOR
3 DIVIDER
DATA SELECT & BUFFER
DOUT
A0 A1 A2 A3 A4 A5 A6 A7
12 COUNTER & 1 OF 12 DECODER
SYNC. CIRCUIT
12 TRANSMISSION GATE CIRCUIT
BINARY DETECTOR
A11/D0 A10/D1 A9/D2 A8/D3
VDD
VSS
Page 2
V1.0
SM5028RF
SAMHOP Microelectronics Corp.
212 RF ENCODER
PIN DESCRIPTION
NO. 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 PIN NAME A0 A1 A2 A3 A4 A5 A6 A7 VSS A8/D3 A9/D2 A10/D1 A11/D0 TE OSC2 OSC1 Dout VDD I/O I I I I I I I I POWER I I Address/data input. I I I O I O POWER Enables transmission. Resistor connected betw……
