m3005ld STMicroelectronics, m3005ld Datasheet

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m3005ld

Manufacturer Part Number
m3005ld
Description
Remote Control Transmitter
Manufacturer
STMicroelectronics
Datasheet
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DESCRIPTION
The M3005LAB1/M3005LD transmitter IC are de-
signed for infrared remote control systems. It has
a total 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 but-
ton, a slider switch or hard wired.
The M3005LAB1/M3005LD generate the pattern
for driving the output stage. These patterns are
pulse distance coded. The pulses are infrared
flashes or modulated. The transmission mode is
defined in conjunction with the sub-system ad-
dress. Modulated pulses allow receivers with nar-
row-band preamplifiers for improved noise
rejection to be used. Flashed pulses require a
wide-band preamplifier within the receiver.
June 1992
FLASHED OR MODULATED TRANSMISSION
7 SUB-SYSTEM ADDRESSES
UP TO 64 COMMANDS PER SUB-SYSTEM
ADDRESS
HIGH-CURRENT
V
LOW NUMBER OF ADDITIONAL COMPO-
NENTS
KEY RELEASE DETECTION BY TOGGLE
BITS
VERY LOW STAND-BY CURRENT (< 2 A)
OPERATIONAL CURRENT < 1mA AT 6V
SUPPLY
SUPPLY VOLTAGE RANGE 2 TO 6.5V
CERAMIC
FREQUENCY (typ. 450kHz)
DD
= 6V (– I
OH
RESONATOR
= 80mA)
REMOTE
CONTROLLED
OUTPUT
REMOTE CONTROL TRANSMITTER
AT
PIN CONNECTIONS
SEN 6N
SEN 5N
SEN 4N
SEN 3N
SEN 2N
SEN 1N
SEN 0N
REMO
ADRM
V
SS
ORDER CODE : M3005LAB1
ORDER CODE : M3005LD
1
2
3
4
5
6
7
8
9
10
(Plastic Package)
(Plastic Package)
DIP20
SO20
M3005LAB1
20
19
18
17
16
15
14
13
12
11
M3005LD
V
DRV 6N
DRV 6N
DRV 6N
DRV 6N
DRV 6N
DRV 6N
DRV 6N
OSC OUT
OSC IN
DD
1/10

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m3005ld Summary of contents

Page 1

... SUPPLY VOLTAGE RANGE 2 TO 6.5V CERAMIC RESONATOR FREQUENCY (typ. 450kHz) DESCRIPTION The M3005LAB1/M3005LD transmitter IC are de- signed for infrared remote control systems. It has a total 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 but- ton, a slider switch or hard wired ...

Page 2

... M3005LAB1 - M3005LD BLOCK DIAGRAM ADRM INPUTS AND OUTPUTS Key matrix inputs and outputs (DRV0N to DRV6N and SEN0N to SEN6N) The transmitter keyboard is arranged as a scanned matrix. The matrix consists of 7 driver outputs and 7 sense inputs as shown in Figure 1 ...

Page 3

... Once a sequence is started, the transmitted data words will always be completed after the key is released. The toggle bits T0 and T1 are incremented if the key is released for a minimum time t ure 4). The toggle bits remain unchanged within a multiple key-stroke sequence. M3005LAB1 - M3005LD (see Fig- REL 3/10 ...

Page 4

... M3005LAB1 - M3005LD Table 1 : Pulse Train Timing Mode T (ms) O Flashed 2.53 Modulated 2.53 Flash Mode f 455kHz OSC OSC OSC N T 1152 OSC t 55296 OSC The following number of pulses may be selected by Metal option : 12, 16. Note : The different dividing ratio for T ...

Page 5

... OSC 6.5V (cer resonator 6. 6. 6.5V 6.5V 2V 0.25mA O = 6.5V 2.5mA O = 6.5V 11V O M3005LAB1 - M3005LD Matrix Position ...

Page 6

... M3005LAB1 - M3005LD ELECTRICAL CHARACTERISTICS 0V (unless otherwise specified Symbol Parameter CONTROL INPUT ADRM V Input Voltage Low IL V Input Voltage High IH I Input Current Low IL (switched P and N channel pull-up/pull down) I Input Current High IH (switched P and N channel pull-up/pull down) ...

Page 7

... REV released scan off DRVnN REMO OSCO REL O t REL scan t W OSCILLATOR ACTIVE M3005LAB1 - M3005LD T1 0 new key scan new word 7/10 ...

Page 8

... M3005LAB1 - M3005LD Figure 5 : Multiple Key-Stroke Sequence. Scan rate multiple key-stroke : t key bouncing closed KEY A released closed KEY B released scan off DRVnN REMO L word key A word key OSCO L 8/ scan scan t SH OSCILLATOR ACTIVE ...

Page 9

... PACKAGE MECHANICAL DATA 20 PINS - PLASTIC DIP Millimeters Dimensions Min. a1 0.254 B 1. Typ. Max. Min. 0.010 1.65 0.055 0.45 0.25 25.4 8.5 2.54 22.86 7.1 3.93 3.3 1.34 M3005LAB1 - M3005LD b1 E Inches Typ. Max. 0.065 0.018 0.010 1.000 0.335 0.100 0.900 0.280 0.155 0.130 0.053 9/10 ...

Page 10

... M3005LAB1 - M3005LD PACKAGE MECHANICAL DATA 20 PINS - PLASTIC MICROPACKAGE Millimeters Dimensions Min 0 0. 7 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 ...

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