SAMHOP SM5262BS-D4

三合微科股份有限公司
SM5262B
SAMHOP Microelectronics Corp.
312 RF ENCODER
GENERAL DESCRIPTION
FEATURES
The SM5262B is a RF remote control
encoder paired with SM5272B. It utilizes
CMOS technology. The chip has 12 bits
of 3-state address pins that provides 312
codes. SM5262B/ SM5272B pair is
suitable for use on remote controller.
* CMOS technology
* Low power consumption
* 12 tri-state pins
* Wide range operating voltage, Vcc = 2.5-12V
* Up to six data bits
* High noise immunity
APPLICATIONS
* Garage Door
* Ceiling Fan
* Toys
PIN ASSIGNMENTS
A0
A1
A2
A3
A4
A5
A6/D5
A7/D4
Vss
1
2
3
4
5
6
7
8
9
18
17
16
15
14
13
12
11
10
VDD
Dout
OSC1
OSC2
TE
A11/D0
A10/D1
A9/D2
A8/D3
A0
A1
A2
A3
A4
A5
A6/D5
A7/D4
Vss
NC
SM5262B
1
2
3
4
5
6
7
8
9
10
20
19
18
17
16
15
14
13
12
11
VDD
Dout
OSC1
OSC2
TE
A11/D0
A10/D1
A9/D2
A8/D3
NC
SM5262BS
Page 1
OCT. 2001
A0
A1
A2
A3
A4
A5
A6/D5
A7/D4
Vss
三合微科股份有限公司
SM5262B
SAMHOP Microelectronics Corp.
312 RF ENCODER
1
2
3
4
5
6
7
8
9
VDD
Dout
OSC1
OSC2
LED
A11/D0
A10/D1
A9/D2
A8/D3
18
17
16
15
14
13
12
11
10
A0
A1
A2
A3
A4
A5
A6/D5
A7/D4
Vss
NC
SM5262B-DX
1
2
3
4
5
6
7
8
9
10
20
19
18
17
16
15
14
13
12
11
VDD
Dout
OSC1
OSC2
LED
A11/D0
A10/D1
A9/D2
A8/D3
NC
SM5262BS-DX
BLOCK DIAGRAM
Vss
VDD
OSC2
System Timing Generator
OSC
OSC1
A0
A1
A2
A3
A4
A5
A6/D5
A7/D4
A8/D3
A9/D2
A10/D1
A11/D0
TE
LED
Control Logic
Address
Code Generator
Page 2
Output
Driver
Dout
OCT. 2001
三合微科股份有限公司
SM5262B
SAMHOP Microelectronics Corp.
312 RF ENCODER
PIN FUNCTION
No.
Pin Name
I/O
1
A0
I
2
A1
I
3
A2
I
4
A3
I
5
A4
I
6
A5
I
7
A6/D5
I/O
Function Operation
Address input, each pin can be set to "0",
"1" , or floating.
Address input or data output.
8
A7/D4
I/O
9
VSS
POWER
10
A8/D3
I/O
11
A9/D2
I/O
Negative power supply.
Address input or data output.
12
A10/D1
I/O
13
A11/D0
I/O
TE
I
Enables transmission.
LED
O
LED Output.
15
OSC1
I
16
OSC2
O
17
Dout
O
18
VDD
POWER
14
Resistor connected between these two pins
determine the system clock.
Serial output of encoded signals.
Positive power supply.
Page 3
OCT. 2001
三合微科股份有限公司
SM5262B
SAMHOP Microelectronics Corp.
312 RF ENCODER
FUNCTION DESCRIPTION
1.
Data Format
OSC
BIT "0"
*a
BIT "1"
3a
a
BIT "F"
*a is 4 OSC Clock
TE
Dout
12 bits address
Sync.
Synchronisation Bit waveform is :
a
32a
Page 4
OCT. 2001
三合微科股份有限公司
SM5262B
SAMHOP Microelectronics Corp.
312 RF ENCODER
2. Frame Format
When SM5262B is used for no data, transmitting format is :
12 bits address
Sync.
Synchronisation Bit waveform is :
a
32a
When data type of SM5262B is used, address bits will decrease accordingly. For example,
in 3 data type where address is 9 bits, transmitting format is :
9 address bits
3 data bits
Sync.
SM5262B/ SM5272B has 12 bits including a maximum of 6 data bits.
first transmission bit
in real signal A0 will be receive first.
A0
A1
A2
A3
A4
A5
A6
A7
A8
A9 A10 A11
Sync.
According to
A0
A1
A2
A3
A4
A5
A6
A7
A8
A9 A10 A11
Sync.
SM5272B
A0
A1
A2
A3
A4
A5
A6
A7
A8
A9
D1
D0
Sync.
SM5272B-M2/L2
A0
A1
A2
A3
A4
A5
A6
A7
A8
D2
D1
D0
Sync.
SM5272B-M3/L3
A0
A1
A2
A3
A4
A5
A6
A7
D3
D2
D1
D0
Sync.
SM5272B-M4/L4
A0
A1
A2
A3
A4
A5
A6
D4
D3
D2
D1
D0
Sync.
SM5272B-M5/L5
A0
A1
A2
A3
A4
A5
D5
D4
D3
D2
D1
D0
Sync.
SM5272B-M6/L6
Page 5
OCT. 2001
三合微科股份有限公司
SM5262B
SAMHOP Microelectronics Corp.
312 RF ENCODER
Single Resistor Oscillator
SM5262B's oscillator be constructed by connecting a resistor between OSC1 and OSC2 pin.
SM5272B's OSC frequency must be 1.4 to 6.8 times more than SM5262B.
Encoder OSC Frequency
100
90
80
R = 510K
70
60
KHz 50
40
R = 1.2 M
30
20
R = 2.7 M
R = 3.0 M
R = 3.3 M
R = 4.3 M
10
0
2.5
6
9
12
15 VOLTAGE
Decoder OSC Frequency
300
250
R = 100 K
200
180
KHz
100
R = 300 K
50
0
R = 620 K
R = 680 K
R = 820 K
R = 1.0 M
2.5
6
9
VOLTAGE
Suggested oscillator resistor of SM5262B/ SM5272B:
SM5262B
4.7M OHM
3.0M OHM
2.2M OHM
1.2M OHM
SM5272B
750K OHM
390K OHM
270K OHM
160K OHM
Page 6
OCT. 2001
三合微科股份有限公司
SM5262B
SAMHOP Microelectronics Corp.
312 RF ENCODER
ABSOLUTE MAXIMUM RATINGS
Parameter
Ratings
Unit
VDD - Vss
-0.3 ~ 16
V
Input Voltage
VI - Vss
Vss - 0.3 ~ VDD +0.3
V
Output Voltage
VO - Vss
Vss - 0.3 ~ VDD +0.3
V
500
mW
Supply Voltage
Maximum power dissipation
Symbol
Pa
Conditions
VDD - Vss = 12 V
Operating Temperature
Topr
-20 ~ 70
℃
Storage Temperature
Tstg
-40 ~ 125
℃
Limit
Min. Typ. Max.
Unit
DC ELECTRICAL CHARACTERISTICS
Parameter
Symbol
Conditions
Supply Voltage
VCC
2.5
Standby Current
ISTB
VDD=12V OSC stop
AO - A11 open
Output Drive Current (Dout)
IOH
VDD = 5V VOH = 4V
VDD = 8V VOH = 6.4V
VDD = 12V VOH = 9.6V
- 2
- 8
-16
mA
Output Sinking Current (Dout)
IOL
VDD = 5V VOL = 1V
VDD = 8V VOL = 1.6V
VDD = 12V VOL = 2.4V
7
16
29
mA
Page 7
0.02
12
V
0.3
μA
OCT. 2001
三合微科股份有限公司
SM5262B
SAMHOP Microelectronics Corp.
312 RF ENCODER
APPLICATION CIRCUIT
VDD
A0
A1
A2
A3
A4
A5
A6
A7
Vss
VDD
Dout
OSC1
OSC2
TE
A11
A10
A9
A8
VDD
DI
ROSC
ANT
RF
GND
TEB
SM5262B
VDD
A0
A1
A2
A3
A4
A5
A6
A7
Vss
VDD
Dout
OSC1
OSC2
TE
A11
A10
A9
A8
VDD
DI
ROSC
RF
GND
ANT
TEB
SM5262B
RF : Module reference to Page11
Page8
OCT. 2001
三合微科股份有限公司
SM5262B
SAMHOP Microelectronics Corp.
312 RF ENCODER
APPLICATION CIRCUIT
VDD
D5
D4
D3
D2
D1 D0
VD
D
DI
ANT
RF
GND
To SM5262B
D5
D4
D3
D2
D1
D0
10KΩ*6
A0
A1
A2
A3
A4
A5
D5
D4
Vss
VDD
Dout
OSC1
OSC2
TE
D0
D1
D2
D3
ROSC
SM5262B
Page 9
OCT. 2001
三合微科股份有限公司
SM5262B
SAMHOP Microelectronics Corp.
312 RF ENCODER
APPLICATION CIRCUIT
VDD
D5
D4
D3
D2
D1 D0
VDD
DI
To
SM5262B
D0
ANT
RF
GND
D1
D2
D3
D4
D5
A0
A1
A2
A3
A4
A5
D5
D4
Vss
VDD
Dout
OSC1
OSC2
LED
D0
D1
D2
D3
ROSC
SM5262B - DX
Page 10
OCT. 2001
三合微科股份有限公司
SM5262B
SAMHOP Microelectronics Corp.
312 RF ENCODER
APPLICATION CIRCIUT
VDD
10μH
25P
MPSH10
47K
From
Encoder's O/P
5P
Page 11
OCT. 2001
三合微科股份有限公司
SM5262B
SAMHOP Microelectronics Corp.
312 RF ENCODER
ORDERING INFORMATION
Part No.
Package
Part No.
Package
SM5262B
18 Pin DIP
SM5262BS
20 Pin SOP
Logo
Product No.
Empty: DIP TYPE
S: SO Package
- General Type
D2: Two data output type
D3: Three data output type
D4: Four data output type
SM5262B S - DX
xxx xx
Serial Number
Date Code
ESD Protection Mark
Page 12
OCT. 2001