 |
|
| If you can't view the Datasheet, Please click here to try to view without PDF Reader . |
|
|
|
| If you can't view the Datasheet, Please click here to try to view without PDF Reader . |
|
|
| Datasheet File OCR Text: |
| SAMHOP Microelectronics Corp. SM-T2/SM-R2 REMOTE CONTROLLER WITH FIVE FUNCTION GENERAL DESCRIPTION The SM-T2 / SM-R2 is a pair of CMOS chip, it was designed for remote controlled car applications. The SM-T2 / SM-R2 has five control keys for controlling the motions ( i.e. forward, backward rightward, leftward and the turbo function ) of the remote controller car. FEATURES * Power supply : 2.4V - 5.0V * Low stand-by current * Five functions control * Auto-power-off function for SM-T2 * Few external components are needed APPLICATION * Remote control car etc. PIN ASSIGNMENTS (TOP VIEW) RIGHTB NC GND BACKWARDB FORWARDB TURBOB SC 1 2 3 4 5 6 7 14 13 12 11 10 9 8 LEFTB NC OSCI OSCO PC VDD SO VO2 GND SI OSCI OSCO RIGHT LEFT RDB 1 2 3 4 5 6 7 8 16 15 14 13 12 11 10 9 VI2 VO1 VI1 VDD TURBO FORWARD BACKWARD LDB SM-T2 SM-R2 Page 1 V2.0 Mar 8,2002 SAMHOP Microelectronics Corp. SM-T2/SM-R2 REMOTE CONTROLLER WITH FIVE FUNCTION BLOCK DIAGRAM SM-T2 OSCI OSCILLATOR OSCO TESTB TIMING GENERATOR RIGHTB LEFTB TURBOB FORWARDB FORWARDB LATCH CIRCUIT ENCODING CIRCUIT PC LOGIC SO SC SM-R2 OSCI OSCILLATOR OSCO TIMING GENERATOR COUNTER SI AMP DECODING CIRCUIT PLA RIGHT VI1 VO1 CONTROL LOGIC VO2 LATCH LEFT TURBO BACKWARD FORWARD VI2 LDB RDB Page 2 V2.0 Mar 8,2002 SAMHOP Microelectronics Corp. SM-T2/SM-R2 REMOTE CONTROLLER WITH FIVE FUNCTION PIN DESCRIPTION SM-T2 Pin No. 1 2, 13 3 4 5 6 7 8 9 10 11 12 14 Pin Name RIGHTB NC GND BACKWARDB FORWARDB TURBOB SC SO VDD PC OSCO OSCI LEFTB Positive power supply Power control output pin Oscillator output pin Oscillator input pin The leftward function will be selected, if this pin is connected to GND Negative power supply The backward function will be selected, if this pin is connected to GND The forward function will be selected, if this pin is connected to GND The turbo function will be selected, if this pin is connected to GND Output pin of the encoding signal with carrier frequency Description The rightward function will be selected, if this pin is connected to GND SM-R2 Pin No. 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 Pin Name VO2 GND SI OSCI OSCO RIGHT LEFT RDB LDB BACKWARD FORWARD TURBO VDD VI1 VO1 VI2 Leftward function disable, if this pin is connected to GND Backward output pin Forward output pin TURBO output pin Positive power supply Inverter 1 input pin for power amplify Inverter 1 output pin for power amplify Inverter 2 input pin for power amplify Negative power supply Input pin of the encoding signal Oscillator input pin Oscillator output pin Rightward output pin Leftward output pin Description Inverter 2 output pin for power amplify Page 3 VER 1.0, DEC. 2000 SAMHOP Microelectronics Corp. SM-T2/SM-R2 REMOTE CONTROLLER WITH FIVE FUNCTION FUNCTION DESCRIPTION 1. Code Format Encode Rule (Bit Format) 1KHz W1 1KHz 50% Duty cycle W2 500Hz 75% Duty cycle 2. Data Format W2 W2 W2 W2 (n) x W1 W2 W2 W2 W2 (n) x W1 W2 W2 W2 W2 No. of Function Code (n) W1 4 10 16 22 28 34 40 46 52 58 64 Forward Forward & Turbo Turbo Turbo & Forward & Left Turbo & Forward & Right Backward Backward & Right Backward & Left Left Right Function Key Decode Result End Code Forward Forward Turbo Forward & Left Forward & Right Backward Backward & Right Backward & Left Left Right W2 1 W2 2 W2 3 W2 4 EEEEEE W2 W1 n-th W2 W2 W2 W1 W1 W1 W1 W1 1 2 3 4 function code 1 word start code Page 4 V2.0 Mar 8,2002 SAMHOP Microelectronics Corp. SM-T2/SM-R2 REMOTE CONTROLLER WITH FIVE FUNCTION 3. Encode/Decode Timing (A) Any function key Encode output 1st word 2nd word 3rd word 12345678 end code Decode output 9ms 9ms (B) SI 8 msec EEEEEE (n) W1 8 msec 1ms Decode output T T=17ms+(nW1)x1ms Page 5 V2.0 Mar 8,2002 SAMHOP Microelectronics Corp. SM-T2/SM-R2 REMOTE CONTROLLER WITH FIVE FUNCTION ABSOLUTE MAXIMUM RATINGS Parameter DC Supply Voltage Input/Output Voltage Operating temperature Storage Temperature Symbol VDD VIN Topt Tstg Ratings 5 GND-0.3 to VSS +0.3 -10~60 -25~125 Unit V V o o C C COMMENTS Never allow a stress to exceed the values listed under "Absolute Maximum Ratings", other -wise the device would suffer from a permanent damage. Nor is a stress since an extended exposure to the absolute maximum rating condition may also affect the reliability of the device, if not causing a damage thereof. DC ELECTRICAL CHARACTERISTICS TX2 (VDD=4.5V, Fosc=128KHz, TA=25oC, unless otherwise specified. Parameter Operating Voltage Operating Current Stand-by Current DC O/P Driving Current AC O/P Driving Current AC O/P Frequency Symbol VDD Idd Istb Idrive Idrive Faudio Min. 3 w w 5 5 500 Typ. 4 w w w w w Max. 5 2 10 w w 1K Unit V mA mA mA mA Hz RX2 (VDD=4.0V, Fosc=128KHz, TA=25oC, unless otherwise specified. Parameter Operating Voltage Operating Current O/P Driving Current O/P Sinking Current Effect Decoding Frequency Variation Symbol VDD Idd Idrive Isink Ftolerance Min. 3 w 1 1 -20 Typ. 4 w w w w Max. 5 2 w w 20 Unit V mA mA mA % Page 6 V2.0 Mar 8,2002 SAMHOP Microelectronics Corp. SM-T2/SM-R2 REMOTE CONTROLLER WITH FIVE FUNCTION APPLICATION CIRCUIT TX2 C12 C11 V7 .01 4.7 4148 POWER OFF S6 S5 R7 200K R12 10M R9 330 V4 4.7V R10 1K R2 4.7K V3 LED L2 2.2 C4 150 V6 9013 R8 3.9K R11 10M V5 8550 B1 9V 14 13 12 11 10 LEFTB OSCI OFF OSCO VDD SO PC R4 6.8K A1 ANTENNA 9 8 R3 220K TURBOB RIHGTB CR1 27.145 L1 2.2 C8 .02 C7 68 L3 C2 L4 1506.8 V1 9014 C9 68 R5 33 K L4 6.8 C1 100 TESTB BACK GND FOR SC V2 9014 C7 68 R6 100 R1 100 C6 0.2 1 2 3 4 5 6 S1 S2 S3 S4 7 Page 7 V2.0 Mar 8,2002 SAMHOP Microelectronics Corp. SM-T2/SM-R2 REMOTE CONTROLLER WITH FIVE FUNCTION APPLICATION CIRCUIT RX C15 C12 .01 100 A1 C2 47 C1 4 C6 18 R2 180K V8 9013 C4 4.7 C5 .02 R3 2.2K C7 0.1 R4 2.2M C8 470 R23 1K R24 1K R10 4.3K C13 C14 4.7 .01 R12 510 C18 C19 100 .1 VD1 4.2V R20 100 V9 8550 R11 10 12V L1 2.2 C3 3000 R1 1K V1 C1815 L2 9V C6 .02 R16 100 V2 9013 V4 8550 M1 V3 8050 V6 8050 V5 8550 R17 100 V7 9013 C9 0.1 R15 330 R18 330 R5 2.2K R25 1K 16 15 14 13 12 11 10 B/WARD VI2 VO2 VI1 F/WARD VDD TURBO LDB 9 RIGHT OSCO C10 30 R6 2.2M R13 220 C17 .02 V13 8550 R14 220 V14 8550 V10 9013 OSCI LEFT GND ROB VO2 V11 9013 M2 V12 8050 V15 8050 SI R9 330 R19 330 1 2 3 4 5 6 7 R8 200K R7 2.2K C11 1000 R21 1K R22 1K 8 Page 8 V2.0 Mar 8,2002 |
Price & Availability of SM-T2
 |
|
|
|
|
All Rights Reserved © IC-ON-LINE 2003 - 2022 |
| [Add Bookmark] [Contact Us] [Link exchange] [Privacy policy] |
|
Mirror Sites : [www.datasheet.hk]
[www.maxim4u.com] [www.ic-on-line.cn]
[www.ic-on-line.com] [www.ic-on-line.net]
[www.alldatasheet.com.cn]
[www.gdcy.com]
[www.gdcy.net] |