M709B1 [STMICROELECTRONICS]
INFRARED, TRANSMITTER IC, PDIP24, PLASTIC, DIP-24;
| 型号： | M709B1 |
| 厂家： | 
ST |
| 描述： | INFRARED, TRANSMITTER IC, PDIP24, PLASTIC, DIP-24 光电二极管 商用集成电路 |
| 文件： | 总10页 (文件大小：121K) |
| 中文： | 中文翻译 | 下载： | 下载PDF数据表文档文件 |
M709 - M709A
M710 - M710A
PCM REMOTE CONTROL TRANSMITTERS
.
.
.
M709 : 40 COMMANDS x 16 ADDRESSES
M710 : 64 COMMANDS x 16 ADDRESSES
ADDRESS ORGANIZATION PROVIDES
WIDE RANGE OF SIMULTANEOUS APPLI-
CATIONS WITHOUT INTERFERENCE BE-
TWEEN SYSTEMS
IMPROVED PCM TRANSMISSION CODE
PROVIDES EASY RECOGNITION OF FALSE
SIGNALS
”FLASH” OR ”CARRIER” PIN SELECTABLE
TRANSMISSION MODES
The reference oscillator is controlled by a cheap
ceramic orLC resonator. Twotypesof transmission
mode are available : ”Flash” or ”Carrier” mode.
The M709 is a simplified version of the M710 which
can only transmit 40 commands with 16 possible
addresses. The M710 on the other hand has the
full system capacity : it can transmit 64 commands
with 16 addresses.
.
.
The M709 and M710 are produced with CMOS
Si-gate technology and are available in 24 and
28-pin dual in-line plastic packages respectively.
.
.
.
END OF TRANSMISSION CODE
SINGLE CONTACT MATRIX KEYBOARD
INTEGRATEDANTIBOUNCE AND
INTERLOCK
.
.
.
WIDE SUPPLY RANGE (M709 - M710 4.5 to
10.5V) / (M709A - M710A3 to 10.5V)
WIDE REFERENCE FREQUENCY RANGE
(445 to 510kHz ceramic resonator)
VERY LOW POWER CONSUMPTION DUR-
ING TRANSMISSION. OUTPUT DUTY CY-
CLE 0.15% (flash mode), 0.7% (carrier mode)
FULLY COMPATIBLE WITH M491 AND M494
(In flash mode)
DIP24
(Plastic Package)
.
ORDER CODE : M709B1 / M709AB1
DESCRIPTION
These ICs have been developedfor remote control
in consumer applications (TV, radio, video re-
corders) or in the industrial field and use a highly
reliable transmission code which has a capacity of
1024 channels. Each transmitted word is struc-
tured into 4 bits which constitute the address and
6 bits which constitute the command (64 com-
mands available). One command (1 st = 000000)
is used to transmit the ”end of transmission code ”
when the key is released. Additional bits are trans-
mitted for synchronization of transmitter and re-
ceiver clocks and for security checks. The address
organization provides a wide range of simultane-
ous applicationswithout interference between sys-
tems. The receiver accepts the decodedcommand
only if the transmitted address matches the ad-
dress selected at the receiver. 16 addresses are
available for this purpose.
DIP28
(Plastic Package)
ORDER CODE : M710B1 / M710AB1
1/10
March 1995
M709 - M709A - M710 - M710A
PIN CONNECTIONS
DIP24 - M709 / M709A
DIP28 - M710 / M710A
TRANSMISSION
MODE
TRANSMISSION
1
28
27
26
25
24
23
22
21
20
19
18
17
16
15
VDD
1
24
23
22
21
20
19
18
17
16
15
14
13
VDD
MODE
OSC. IN
OSC. OUT
H
2
OUTPUT
OSC. IN
2
OUTPUT
3
VSS
X
OSC. OUT
3
VSS
X
4
E
D
C
B
A
K
I
4
5
Y
G
F
5
Y
ADDRESS
ADDRESS
6
W
6
W
Z
E
D
C
B
A
K
I
7
Z
7
8
TEST
Q
8
TEST
Q
9
9
10
11
12
13
14
P
10
11
12
P
O
L
O
N
M
N
M
L
N.C.
Note : The test pin must be connected to VSS
.
FUNCTIONAL DESCRIPTION
VDD
24
VSS
22
OSC. IN
2
OSC. OUT
3
TEST
17
X
Y
21
20
19
18
1
M709
ADDRESS
W
Z
23 OUTPUT
M709A
TRANSMISSIONMODE
E
4
D
C
6
B
7
A
8
K
9
I
L
M
N
O
P
Q
5
10 11 12 13 14 15 16
1
2
3
4
5
6
7
15
23
31
8
16
24
32 33 34 35 36 37 38 39
VDD
28
VSS
26
OSC. IN
2
OSC. OUT
3
TEST
21
X
25
24
23
22
1
Y
W
Z
M710
ADDRESS
27 OUTPUT
M710A
TRANSMISSION MODE
H
4
G
5
F
6
E
7
D
8
C
9
B
A
K
I
L
M
N
O
P
Q
10 11
12 13 14 16 17 18 19 20
1
2
3
4
5
6
7
15
23
31
39
47
55
8
16
24
32
40
48
56 57 58 59 60 61 62 63
2/10
M709 - M709A - M710 - M710A
BLOCK DIAGRAM
ROW INPUTS
COLUMN INPUTS
ENABLE
OSC. IN
KEYBOA RD LOGIC
OSCILLATOR
OSC. OUT
DVIDERS AND
CLOCK GENERATOR
ADDRESS
OUTPUT
TRANSMISSION CODE LATCH
END OF TRANSMISSION
LOGIC
TRANSMISSION SEQUENCE LOGIC
TRANSMISSIO NMODE
TEST
ABSOLUTE MAXIMUM RATINGS
Symbol
Parameter
Value
-0.3 to 12
Unit
V
VDD
VI
Supply Voltage
Input Voltage
-0.3 to VDD +0.3
10
V
|IO|
IR Output Current (t < 50µs)
mA
mW
°C
Ptot
Toper
Tstg
Total Package Power Dissipation
Operating Temperature
200
0 to 70
Storage Temperature
-55 to 125
°C
Stresses above those listedunder ”Absolute Maximum Ratings” may cause permanent damage to the device. This is a stress rating only
and functional operation of the device at these or any other conditions above those indicated in the operational sections of this specification
is not implied. Exposure to absolute maximum rating conditions for extended periods may affect device reliability.
RECOMMENDED OPERATING CONDITIONS
Symbol
Parameter
Supply Voltage Range : M709/M710
M709A/M710A
Value
Unit
VDD
4.5 to 10.5
3 to 10.5
V
V
VI
|IO|
fref
Input Voltage Range
0 to VDD
max. 2.5
445 to 510
0 to 70
V
mA
kHz
oC
IR Output Current ( t< 50µs)
Reference Frequency Range
Toper
rs
Operating Temperature Range
Serial Resistance of a Closed Key Contact
Parallel Resistance of Open Key Contact
Serial Resistance of the Ceramic Resonator
max. 2.5
min. 2.2
max. 20
kΩ
MΩ
Ω
rp
Rs
3/10
M709 - M709A - M710 - M710A
STATIC ELECTRICAL CHARACTERISTICS (over recommended operating conditions)
Typical values are at 9V and TAMB = 25oC
Symbol
Parameter
Pins
Test Conditions
Min. Typ. Max. Unit
IDD
Supply Current
M709 Pin 24
M710 Pin 28
VDD = 9V, IR Output open :
Stand-by
Operating (one key closed)
5
4
15
7
µA
mA
IOH
IOL
High State
M709 Pin 23
M710 Pin 27
VDD = 9V, VOH = 8V
-1.5 -2.5
-0.3 -0.5
mA
mA
IR Output Current
VDD = 4.5V, VOH = 3.5V
Low State
IR Output Current
M709 Pin 23
M710 Pin 27
VDD = 9V, VOL = 1V
VDD = 4.5V, VOL = 1V
1.5
0.3
2.5
0.5
mA
mA
VTH
VTL
Input Threshold High Selection Inputs A to H
VDD = 9V
6
3
V
V
VDD = 4.5V
Input Threshold Low Selection Inputs K to Q
VDD = 9V
VDD = 4.5V
3
1.5
V
V
IIL
IIH
IIH
Input Low Current
Input High Current
Input High Current
Pull-up Inputs A to H
VDD = 9V, VIL = 4.5V
VDD = 9V, VIH = 4.5V
-60
60
-300 µA
Pull-down Inputs K to Q
300
150
µA
µA
Address Selection Inputs VDD = 9V, VIL = 8.25V
(oscillator running)
IL
Input Leakage
Current
Trans. Mode Test Pin
VDD = 9V, VIN = 0 to 9V
1
µA
µA
IOS
Output Current
Osc. Out
VDD = 9V, Osc. In. = VSS
-2
-8
TRUTH TABLE
Input Code
Command Bits
C1 C2 C3 C4 C5 C6
Command
No
0
1
2
3
4
5
6
7
A
B
C
D
E
F
G
H
K
I
L
M
N
O
P
Q
X
X
X
X
END OF TRANSMISSION
0
1
0
1
0
1
0
1
0
1
0
1
0
1
0
1
0
1
0
1
0
1
0
1
0
1
0
1
0
1
0
1
0
0
1
1
0
0
1
1
0
0
1
1
0
0
1
1
0
0
1
1
0
0
1
1
0
0
1
1
0
0
1
1
0
0
0
0
1
1
1
1
0
0
0
0
1
1
1
1
0
0
0
0
1
1
1
1
0
0
0
0
1
1
1
1
0
0
0
0
0
0
0
0
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
X
X
X
X
X
X
X
X
X
X
X
X
X
X
X
X
X
X
X
X
X
X
X
X
X
X
X
X
X
X
X
X
X
X
X
X
X
8
9
X
X
X
X
X
X
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
X
X
X
X
X
X
X
X
X
X
X
X
X
X
X
4/10
M709 - M709A - M710 - M710A
TRUTH TABLE (continued)
Input Code
Command Bits
C1 C2 C3 C4 C5 C6
Command
No
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
A
B
C
D
E
X
X
X
X
X
X
X
X
F
G
H
K
I
L
M
N
O
P
Q
X
X
X
X
X
0
1
0
1
0
1
0
1
0
1
0
1
0
1
0
1
0
1
0
1
0
1
0
1
0
1
0
1
0
1
0
1
0
0
1
1
0
0
1
1
0
0
1
1
0
0
1
1
0
0
1
1
0
0
1
1
0
0
1
1
0
0
1
1
0
0
0
0
1
1
1
1
0
0
0
0
1
1
1
1
0
0
0
0
1
1
1
1
0
0
0
0
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
0
0
0
0
0
0
0
0
1
1
1
1
1
1
1
1
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
0
0
0
0
0
0
0
0
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
X
X
X
X
X
X
X
X
X
X
X
X
X
X
X
X
X
X
X
X
X
X
X
X
X
X
X
X
X
X
X
X
X
X
X
X
X
X
X
X
X
X
X
X
X
X
X
X
X
X
X
DESCRIPTION
The different code introducedfor the even and odd
”1s” improves the capability to recognize false
codes at the receiver end. For example the double
error which can cause the exchange ”10” with ”01”
is easily detected.
Aparity bit is also addedin order to further increase
the reliability of the transmission. This bits is ”1” if
the number of transmitted”1s” is even while itis ”0”
if the number of transmitted ”1s” is odd.
The signals are transmitted with infrared light using
pulse code modulation. Each word consists of 12
bits. The binary information of a bit is determined
by the time interval between two pulses.
If ”T” isthe timebase, thebits are coded as follows:
Odd bits (1, 3, etc)
T
2T
In addition, every word contains a preliminary
pulse, a start pulse and a stop pulse. The spacing
between the preliminary and the start pulse is 4T.
This is followed after 1T by 11 data pulses (one
parity bit), and terminatedafter4T intervalby a stop
pulse.
Consequently, a word in which the binary digit 0
occurs ten times has a total duration of 21T.
A word containing ten ”1s” has a duration of 36T.
0 = T
1 = 2T
”0”
”1”
Even bits (2, 4, etc)
T
3T
0 = T
1 = 3T
”0”
”1”
5/10
M709 - M709A - M710 - M710A
Example :
4T
T
T
0
3T
1
2T
1
3T
1
T
0
3T
1
T
0
T
0
2T
1
T
0
T
4T
t
Address
Bits
Command
Bits
Prelim.
Pulse
Start
Pulse
Parity Stop
Bit Pulse
SYNCHRONIZATION BETWEEN TRANSMIT-
TER AND RECEIVER
The contact must be continuously closed for a
minimum of 25ms.
The transmitter and the receiver can operate with
different reference frequencies.
Double and multiple contact operations are not
accepted.
Typical values suitable for correct operation of the
system should be between 445 and 510kHz, using
a cheap ceramic resonator.
The command information is repeatedly transmit-
ted at intervals of 102ms (fref = 500kHz) as long as
the push button remains operated.
Synchronization between the transmitter and the
receiver, necessary to obtain the wide range of
frequency tolerance described above is achieved
by measuring in the receiver the interval between
the start pulse and the first data pulse, storing this
value and using it as time base T.
When the contact is interrupted the circuit trans-
mits, after a pause of about 18 ms, the ”end of
transmission code” and returns to stand-by mode.
If the contact is interrupted while a command is
being transmitted the circuit carries on with the
transmission to the end. After a pause of about 18
ms it transmits the end of transmission code.
KEYBOARD (pins A to Q) / CODE REPETITION
One column input (K to Q) has to be connected to
one row (A to H) input to activate the transmitter.
No command is accepted until the ”end of trans-
mission code” is over.
COMMAND
TRANSMISSION
COMMAND
TRANSMISSION
END OF
TRANSMISSION
CODE
KEY
CLOSED
FLASH CARRIER
KEY
RELEASED
MODE
MODE
ANTIBOUNCE
REPETITION
TIME (102ms)
18ms
(25ms)
TRANSMISSION MODE (pin 1)
The M709/M710 can operate in Flash (pin 1 = VDD) or Carrier (pin 1 = VSS) transmission modes. Using a
reference frequency of 500kHz the output signal has these formats :
Flash Mode
Transmission time
min. = 2.1ms
10 s
µ
max. = 3.6ms
duty cycle = 0.15%
T = 100µs
6/10
M709 - M709A - M710 - M710A
Carrier Mode
26µs
Transmission time
min. = 32.76ms
max. = 56.16ms
duty cycle = 0.7%
f = 38.43kHz
8µs
142.02µs
T = 1.56ms
ADDRESS (pins X, Y, W, Z)
The Addressinformation is coded and transmitted as follows :
ADDRESS BITS
COMMANDS BITS
PRELIMINARY PULSE
AND START PULSE
PARITY
BIT
STOP
PULSE
A1
A2
A3
A4
C1
C2
C3
C4
C5
C6
t
Transmitted Code
Address Input Code
Address
Number
A1
0
1
0
1
0
1
0
1
0
1
0
1
0
1
0
1
A2
0
0
1
1
0
0
1
1
0
0
1
1
0
0
1
1
A3
0
0
0
0
1
1
1
1
0
0
0
0
1
1
1
1
A4
X
L
H
L
H
L
H
L
H
L
H
L
H
L
Y
L
W
L
Z
L
L
L
L
L
L
L
L
H
H
H
H
H
H
H
H
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
0
0
0
0
0
0
0
0
1
1
1
1
1
1
1
1
L
L
H
H
L
L
L
H
H
H
H
L
L
H
H
L
L
L
H
H
L
L
H
H
L
L
H
H
H
H
H
L
H
The address inputs have internal pull-downs which are disabled during stand-by.
Single Address Selection
Multiple Address Selection
X
Y
W Z
X
Y
W
Z
VDD
ADDRESS 13
VDD
ADDRESS 13
ADDRESS 11
Note : unused inputs can be left open or connected to VSS
.
7/10
M709 - M709A - M710 - M710A
TYPICAL APPLICATION
FLASH MODE
33
Ω
ADDRESS
TMODE
9V
2 x LD271
BC377
VDD
OUT
VSS
820Ω
BD237
220µF
KEYBOARD
2 x
1N4148
0.39
TEST
Ω
455 to 510kHz
100pF
100pF
Infrared Diode Peak Current = 1.8A
Total Average Consumption = 6.5mA
CARRIER MODE
33Ω
ADDRESS
9V
2 x LD271
VDD
OUT
1kΩ
BC377
220µF
BD237
TMODE
VSS
KEYBOARD
2 x
1N4148
0.56Ω
TEST
455 to 510kHz
100pF
100pF
Infrared Diode Peak Current = 1.25A
Total Average Consumption = 13mA
8/10
M709 - M709A - M710 - M710A
PACKAGE MECHANICAL DATA
24 PINS - PLASTIC DIP
b1
b
e
b2
E
e3
D
24
13
12
1
Millimeters
Typ.
Inches
Dimensions
Min.
0.23
15.2
Max.
Min.
0.009
0.598
Typ.
0.025
0.018
Max.
a1
b
0.63
0.45
b1
b2
D
E
0.31
0.012
1.27
0.050
32.2
1.268
0.657
16.68
e
2.54
0.100
1.100
e3
F
27.94
14.1
0.555
i
4.445
3.3
0.175
0.130
L
9/10
M709 - M709A - M710 - M710A
PACKAGE MECHANICAL DATA
28 PINS - PLASTIC DIP
b1
b
e
b2
E
e3
D
28
15
14
1
Millimeters
Typ.
Inches
Typ.
Dimensions
Min.
0.23
15.2
Max.
Min.
0.009
0.598
Max.
a1
b
0.63
0.025
0.018
0.45
b1
b2
D
E
0.31
0.012
1.27
0.050
37.4
1.470
0.657
16.68
e
2.54
0.100
1.300
e3
F
33.02
14.1
0.555
i
4.445
3.3
0.175
0.130
L
Information furnished is believed to be accurate and reliable. However, SGS-THOMSON Microelectronics assumes no responsibility
for the consequences of use of such information nor for any infringement of patents or other rights of third parties which may result
from its use. No licence is granted by implication or otherwise under any patent or patent rights of SGS-THOMSON Microelectronics.
Specifications mentioned in this publication are subject to change without notice. This publication supersedes and replaces all
information previously supplied. SGS-THOMSON Microelectronics products are not authorized for use as critical components in life
support devices or systems without express written approval of SGS-THOMSON Microelectronics.
1995 SGS-THOMSON Microelectronics - All Rights Reserved
Purchase of I2C Components of SGS-THOMSON Microelectronics, conveys a license under the Philips
I2C Patent. Rights to use these components in a I2C system, is granted provided that the system conforms to
the I2C Standard Specifications as defined by Philips.
SGS-THOMSON Microelectronics GROUP OF COMPANIES
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10/10
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RESISTOR, TRIMMER, CERMET, 20 TURN(S), 0.5 W, 150 ohm, 1-1/4 INCH, RECTANGULAR, 3 PINS, ROHS COMPLIANT
VISHAY
M70L152KB25
RESISTOR, TRIMMER, CERMET, 20 TURN(S), 0.5 W, 1500 ohm, 1-1/4 INCH, RECTANGULAR, 3 PINS, ROHS COMPLIANT
VISHAY
M70L153KB25
RESISTOR, TRIMMER, CERMET, 20 TURN(S), 0.5 W, 15000 ohm, 1-1/4 INCH, RECTANGULAR, 3 PINS, ROHS COMPLIANT
VISHAY
M70L154KB25
RESISTOR, TRIMMER, CERMET, 20 TURN(S), 0.5 W, 150000 ohm, 1-1/4 INCH, RECTANGULAR, 3 PINS, ROHS COMPLIANT
VISHAY
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