Document
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STV3012
REMOTE CONTROL TRANSMITTER FOR AUDIO AND VIDEO APPLICATIONS
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PRELIMINARY DATA
TWO TIMING AND DATA FORMAT MODES 7 SUB-SYSTEM ADDRESSES UP TO 64 COMMANDS PER SUB-SYSTEM ADDRESS KEY RELEASE DETECTION BY TOGGLE BIT (1 toggle bit in mode A and 2 toggle bits in mode B) HIGH CURRENT REMOTE OUTPUT AT VDD = 3V (-IOH = 80mA) VERY LOW STAND-BY CURRENT (< 2µA) 1mA OPERATIONAL CURRENT AT 6V SUPPLY CERAMIC RESONATOR CONTROLLED FREQUENCY (typ. 450kHz) MODULATED TRANSMISSION SUPPLY VOLTAGE RANGE 2V TO 6.5V LOW NUMBER OF EXTERNAL COMPONENTS
DIP20 (Plastic Package) ORDER CODE : STV3012
PIN CONNECTIONS
REMO
1 2 3 4 5 6 7 8 9 10
20 19 18 17 16 15 14 13 12 11
VDD
SEN6N SEN5N
SEN4N SEN3N SEN2N
DRV6N DRV5N
DRV4N DRV3N DRV2N
DESCRIPTION The STV3012 is a general purpose infrared remote control transmitter system for low voltage supply applications. It is able to generate a total number of 448 commands which are divided into 7 sub-system groups with 64 commands each. The sub-system code may be selected by a press button, a slider switch or hard wired. Two different timing and data format modes are available.
March 1993
SEN1N SEN0N ADRM
V SS
DRV1N DRV0N OSCO
OSCI
3012-01.EPS
1/8
This is advance information on a new product now in development or undergoing evaluation. Details are subject to change without notice.
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STV3012
BLOCK DIAGRAM
OSCO 12 OSCILLATOR OSCI 11 DIVIDER
MASTER CLEAR
20 VDD 10 VSS
SEN6N SEN5N SEN4N SEN3N SEN2N SEN1N SEN0N
2 3 4 5 6 7 8 PARALLEL /SERIAL CONVERTER
KEYBOARD ENCODER ADDRESS LATCHES
SYST. CONTR
9
ADRM
19 DRV6N 18 DRV5N
KEYBOARD DRIVER DECODER
17 DRV4N 16 DRV3N 15 DRV2N 14 DRV1N
3012-02.EPS
REMO
1
REMOTE
13 DRV0N
ABSOLUTE MAXIMUM RATINGS
Symbol VDD VI VO ±I - I(REMO) Ptot Tstg Toper Parameter Supply Voltage Input Voltage Output Voltage D.C. Current into any input or output Peak REMO Output Current during 10µs, duty factor = 1% Power Dissipation per package for Tamb = - 20 to + 70oC Storage Temperature Operating Ambient Temperature Value - 0.3, 7.0 - 0.3, VDD + 0.3 - 0.3, VDD + 0.3 10 300 200 - 55, + 125 -20, + 70 Unit V V V mA mA mW o C o C
3012-01.TBL 3012-02.TBL
ELECTRICAL CHARACTERISTICS VSS = 0V, TA = 25oC (unless otherwise specified)
Symbol VDD IDD Parameter Supply Voltage Supply Current Test Conditions TA = 0 to + 70oC • Active fOSC = 455kHz VDD = 3V REMO Output unload VDD = 6V • Inactive (stand-by mode) VDD = 6V VDD = 2 to 6.5V (ceramic resonator) VDD = VDD = VDD = VDD = 2 to 6.5V 2 to 6.5V 2V, VI = 0V 6.5V, VI = 0V Min. 2 Typ. 0.25 1.0 350 Max. 6.5 0.5 2 2 600 0.3 x VDD 0.7 x VDD 10 100 100 600 1 0.3 0.6 10 Unit V mA mA µA kHz V V µA µA µA V V µA
fOSC VIL VIH - II II VOL IO 2/8
Oscill. Frequency Input Voltage Low Input Voltage High Input Current Input Leakage Current Output Voltage "ON" Output Current "OFF"
KEYBOARD MATRIX - Inputs SEN0N to SEN6N
VDD = 6.5V, VI = VDD VDD = 2V, IO = 0.1mA VDD = 6.5V.