UT912EL-S16-R [UTC]
ENCODER FOR REMOTE CONTROLLER; 编码器遥控器
| 型号： | UT912EL-S16-R |
| 厂家： | 
Unisonic Technologies |
| 描述： | ENCODER FOR REMOTE CONTROLLER |
| 文件： | 总8页 (文件大小：152K) |
| 中文： | 中文翻译 | 下载： | 下载PDF数据表文档文件 |
UNISONIC TECHNOLOGIES CO.,
UT912E
CMOS IC
ENCODER FOR REMOTE
CONTROLLER
ꢀ
DESCRIPTION
The UTC UT912E of CMOS LSIs for remote control
DIP-18
DIP-14
system applications is capable of encoding information which
consists of N address bits and 12-N data bits. Each
address/data input can be set to one of the two logic states.
The programmed addresses/data are transmitted together
with the header bits by a RF or an infrared transmission
medium upon receipt of a trigger signal.
SOP-16
SOP-20
ꢀ
FEATURES
* Operating voltage: 2.4V ~ 12V
* Low power and high noise immunity CMOS technology
* Low standby current (0.1μA (typ.) at VDD=5V)
*Pb-free plating product number: UT912EL
* Minimum transmission word (Four words)
* Built-in oscillator needs only 5% resistor
* Data code has positive polarity
* Minimal external components
ꢀ ORDERING INFORMATION
Ordering Number
Package
Packing
Normal
Lead Free Plating
UT912EL-D14-T
UT912EL-D18-T
UT912EL-S16-T
UT912EL-S16-R
UT912EL-S20-T
UT912EL-S20-R
UT912E-D14-T
UT912E-D18-T
UT912E-S16-T
UT912E-S16-R
UT912E-S20-T
UT912E-S20-R
DIP-14
DIP-18
SOP-16
SOP-16
SOP-20
SOP-20
Tube
Tube
Tube
Tape Reel
Tube
Tape Reel
www.unisonic.com.tw
1
Copyright © 2005 Unisonic Technologies Co.,
QW-R502-022,B
UT912E
CMOS IC
ꢀ
PIN CONFIGURATION
8-Address
2-Address/Data
8-Address
1
16
VDD
A0
A1
1
2
3
4
5
6
7
14
VDD
A0
A1
A2
A3
A4
A5
A6
2
3
4
5
6
7
8
DOUT
OSC1
OSC2
15
14
13
12
11
10
9
13
12
11
10
9
DOUT
A2
A3
A4
A5
A6
A7
OSC1
OSC2
TE
TE
AD11
AD10
VSS
A7
8
VSS
SOP-16
DIP-14
8-Address
4-Address/Data
8-Address
4-Address/Data
1
2
3
4
5
6
7
20
19
18
17
16
15
14
13
12
11
NC
NC
A0
A1
1
2
3
4
5
6
7
18
VDD
VDD
A0
A1
DOUT
DOUT
17
16
15
14
13
12
11
10
OSC1
OSC2
A2
A3
A4
A5
A6
OSC1
OSC2
A2
A3
A4
TE
TE
AD11
AD11
A5
AD10
AD9
AD8
AD10
AD9
AD8
8
9
A6
8
9
A7
A7
10
VSS
VSS
DIP-18
SOP-20
ꢀ
PIN DESCRIPTION
PIN NAME
A0 ~ A7
I/O
INTERNAL CONNECTION
NMOS TRANSMISSION
GATE PROTECTION DIODE These pins can be externally set to VSS or left open
NMOS TRANSMISSION Input pins for address/data AD8 ~ AD11 setting
GATE PROTECTION DIODE These pins can be externally set to VSS or left open
DESCRIPTION
Input pins for address A0 ~ A7 setting
Ⅰ
Ⅰ
AD8 ~ AD11
DOUT
TE
O
Ⅰ
Ⅰ
CMOS OUT
Encoder data serial transmission output
Transmission enable, active low
Oscillator input pin
CMOS IN Pull-high
OSCILLATOR 1
OSCILLATOR 1
OSC1
OSC2
VSS
O
Ⅰ
Ⅰ
Oscillator output pin
Negative power supply (GND)
Positive power supply
VDD
UNISONIC TECHNOLOGIES CO., LTD
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QW-R502-022,B
UT912E
CMOS IC
ꢀ
BLOCK DIAGRAM
TE trigger
OSC2 OSC1
Data Select
and Driver
Osc Circuit
Fosc/3 Divider
DOUT
TE
12 bit Add/Data
Decoder
Sync.
Circuit
A0
A7
12 bit Add/Data
Input Circuit
Binary Detector
Vss
VDD
AD8
AD11
UNISONIC TECHNOLOGIES CO., LTD
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QW-R502-022,B
UT912E
CMOS IC
ꢀ
ABSOLUTE MAXIMUM RATINGS (Ta=25℃)
PARAMETER
SYMBOL
VDD
RATINGS
-0.3 ~ +13
UNIT
V
Supply Voltage
Input Voltage
VIN
Vss-0.3 ~ VDD+0.3
0 ~ +70
V
℃
Operating Temperature
Storage Temperature
TOPR
TSTG
℃
-40 ~ +150
ꢀ
ELECTRICAL CHARACTERISTICS (Ta=25℃, unless otherwise specified.)
PARAMETER
SYMBOL
VDD
TEST CONDITIONS
MIN
2.4
TYP
5
MAX UNIT
Operating Voltage
12
1
V
VDD=3V
0.1
2
μA
Standby Current
ISTN-BY
IOPR
Oscillator stops
V
DD=12V
VDD=3V
DD=12V
4
No load,
40
150
80
300
μA
Operating Current
Output Driver Current
Input Voltage
Fosc=3kHz
V
VOH=0.9VDD(Source)
VOL=0.1VDD (Sink)
-1
-1.6
1.6
IDOUT
VDD=5V
mA
1
0.8VDD
0
High
Low
VIH
VIL
VDD
V
V
0.2VDD
Rosc=1.1MΩ, VDD=5V
Oscillator Frequency
fosc
RTE
3
kHz
MΩ
TE Pull-high Resistance
VTE=0V, VDD=5V
1.5
3
UNISONIC TECHNOLOGIES CO., LTD
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QW-R502-022,B
UT912E
CMOS IC
ꢀ
OPERATION FLOWCHART
Power on
Standby mode
No
Transmission
enabled?
TE receied a low signal.
Yes
4 data words
transmitted
No
Transmission
still enabled
TE return high.
TE still is held low.
Yes
4 data words
transmitted
contiuously
UNISONIC TECHNOLOGIES CO., LTD
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QW-R502-022,B
UT912E
CMOS IC
■
FUNCTIONAL DESCRIPTION
Operation
The UTC UT912E start a cycle of 4-words transmission upon receipt of a transmission enable (TE). A completed
cycle is showed as below. This cycle will repeat itself as long as the transmission enable is held low. While the
transmission enable returns high the encoder output completes its final cycle and then stops.
TE
<1 word
Encoder
DOUT
Transmitted
Continuously
4 words
4 words
Address/data bit waveform
Each programmable address/data pin can be externally set to one of the following two logic states as shown
below.
fosc
"One"
"Zero"
Address/
Data Bit
Address/data programming (preset)
The status of each address/data pin can be individually pre-set to logic ”high” or ”low”. If a transmission-enable
signal is applied, the encoder scans and transmits the status of the 12 bits of address/data serially in the order A0 to
AD11. During information transmission these bits are transmitted with a preceding synchronization bit. If the trigger
signal is not applied, the chip enters the standby mode and consumes a reduced current of less than 1μA for a
supply voltage of 5V.
The following figure shows an application using the UTC UT912E:
OSC1 OSC2
Transmission
DOUT
Medium
VDD
A0 A1 A2 A3 A4 A5 A6 A7 VSS TE AD8 AD9AD10AD11
VDD
VSS
Transmitted information:
Pilot & A0
Sync.
A1
0
A2
1
A3
0
A4
0
A5
0
A6
1
A7
1
AD8 AD9 AD10 AD11
1
1
1
1
0
UNISONIC TECHNOLOGIES CO., LTD
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QW-R502-022,B
UT912E
CMOS IC
Address/Data sequence
The following provides the address/data sequence table for various models of the UTC UT912E encoders. The
correct device should be selected according to the individual address and data requirements.
Bits
Address/
Date
0
1
2
3
4
5
6
7
8
9
10
11
A0
A1
A2
A3
A4
A5
A6
A7
AD8 AD9 AD10 AD11
.
ꢀ
TYPICAL APPLICATION CIRCUIT
Transmitter Circuit
VDD
18
17
16
15
14
13
12
11
10
1
2
3
4
5
6
7
8
9
A0
A1
A2
A3
A4
A5
A6
A7
VSS
VDD
DOUT
OSC1
OSC2
TE
AD11
AD10
AD9
Rosc
AD8
ꢀ
APPROXIMATE INTERNAL CONNECTIONS
CMOS IN
Pull-high
NMOS
TRANSMISSION
GATE
CMOS OUT
NMOS TRANSMISSION GATE
PROTECTION DIODE
OSCILLATOR 1
EN
OSC1
OSC2
VDD
UNISONIC TECHNOLOGIES CO., LTD
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QW-R502-022,B
UT912E
CMOS IC
ꢀ
OSCILLATOR FREQUENCY VS SUPPLY VOLTAGE
Fosc
unit:KHZ
ROSC (Ω)
7.00
510k
560k
620k
680k
6.00
5.00
4.00
3.00
2.00
1.00
750k
820k
1.0M
1.1M
1.3M
1.5M
1.8M
2.2M
VDD(VDC
Unit:V
)
2
3
4 5
6
7
8
9 10 11 12 13
The recommended oscillator frequency is fOSCD (decoder) ≌ 50fOSCE (UT912E encoder)
UTC assumes no responsibility for equipment failures that result from using products at values that
exceed, even momentarily, rated values (such as maximum ratings, operating condition ranges, or
other parameters) listed in products specifications of any and all UTC products described or contained
herein. UTC products are not designed for use in life support appliances, devices or systems where
malfunction of these products can be reasonably expected to result in personal injury. Reproduction in
whole or in part is prohibited without the prior written consent of the copyright owner. The information
presented in this document does not form part of any quotation or contract, is believed to be accurate
and reliable and may be changed without notice.
UNISONIC TECHNOLOGIES CO., LTD
8
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QW-R502-022,B
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