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TMS3637P Datasheet(PDF) 13 Page - Texas Instruments

Part # TMS3637P
Description  Remote Control Transmitter/Receiver
PDF  53 Pages
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Manufacturer  TI [Texas Instruments]
Direct Link  http://www.ti.com
Logo TI - Texas Instruments

TMS3637P Datasheet(HTML) 13 Page - Texas Instruments

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2–3
2.4
Timing Requirements Over Recommended Ranges of Supply Voltages
and Free-Air Temperature
2.4.1
Abort/Retry
MIN
NOM
MAX
Time between consecutive codes
46 x tw (transmitter)
Time out for high-level bit to abort the code
3 x tw (receiver)
Time out for low-level bit to abort the code
25 x tw (receiver)
Time between aborted code and reading of new code
3 x tw (receiver)
2.4.2
EEPROM Read Mode (see Figure 3–3)
MIN
MAX
UNIT
tsu2
Setup time, OSCR high after VCC ↑
50
ms
tw4
Pulse width, OSCR high
10
µs
tw5
Pulse width, OSCR low
10
µs
2.4.3
EEPROM Write Mode (see Figure 3–3 and Figure 3–4)
MIN
MAX
UNIT
tsu3
Setup time, OSCR high after VCC high
50
ms
tw6
Pulse duration, OSCR high
5
µs
tw7
Pulse duration, OSCR low
5
µs
tv
Valid time, data IN valid before OSCC
↑
10
µs
2.4.4
Data Input Setup and Hold Times (see Figure 3–5)
MIN
NOM
MAX
UNIT
tsu4
Setup time, data in before OSCR
↓
1
µs
th1
Hold time, data in after OSCR
↓
1
µs
2.5
Switching Characteristics Over Recommended Ranges of Supply
Voltages and Free-Air Temperature (unless otherwise noted)
2.5.1
Normal Transmission – Internal Clock (see Figure 3–6)
PARAMETER
MIN
TYP
MAX
UNIT
tw8
Pulse duration, half-oscillating period for OSCC sawtooth
↑↓
5
1/(2 x fosc)
100
µs
tw9
Pulse duration, logic bit 1 for IN
5
tw
100
µs
tw10
Pulse duration, logic bit 0 for IN
35
7 x tw
700
µs
2.5.2
Modulated Transmission – Internal Clock
PARAMETER
TEST
CONDITIOINS
MIN
TYP
MAX
UNIT
fosc(t)
Transmitter oscillator frequency
100
110
120
kHz
fosc(r)
Receiver oscillator frequency
400
440
480
kHz
tw(H)
Pulse duration, high-level modulation at IN
See Figure 3-7
9
1/fosc(t)
10
µs
tc
Cycle time, IN
See Figure 3-7
27
3 x tw(H)
30
µs
tc(total) Total cycle time, IN
See Figure 3-7
135
5 x tc
150
µs
tw11
Pulse duration, logic bit 1 for IN
See Figure 3-7
135
5 x tc
150
µs
tw12
Pulse duration, logic bit 0 for IN
See Figure 3-7
945
7 x tw10
1050
µs



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