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參數(shù)資料
| 型號： | TOIM5232-TR3 |
| 廠商： | Vishay Semiconductors |
| 文件頁數(shù)： | 2/13頁 |
| 文件大小： | 0K |
| 描述： | IC SIR ENDEC IRDA 115.2K 20-QFN |
| 產(chǎn)品目錄繪圖： | TOIM Series 20-QFN |
| 標(biāo)準(zhǔn)包裝： | 1 |
| 類型： | 紅外線編碼器/解碼器 |
| 電壓 - 電源，模擬： | 2.7 V ~ 3.6 V |
| 電壓 - 電源，數(shù)字： | 2.7 V ~ 3.6 V |
| 安裝類型： | 表面貼裝 |
| 封裝/外殼： | 20-WQFN 裸露焊盤，20-DQFN |
| 供應(yīng)商設(shè)備封裝： | 20-QFN（4x4） |
| 包裝： | 標(biāo)準(zhǔn)包裝 |
| 產(chǎn)品目錄頁面： | 2865 (CN2011-ZH PDF) |
| 其它名稱： | 751-1491-6 |
TOIM5232
www.vishay.com
Vishay Semiconductors
Rev. 1.3, 04-Jul-12
10
Document Number: 81749
For technical questions within your region: irdasupportAM@vishay.com, irdasupportAP@vishay.com, irdasupportEU@vishay.com
THIS DOCUMENT IS SUBJECT TO CHANGE WITHOUT NOTICE. THE PRODUCTS DESCRIBED HEREIN AND THIS DOCUMENT
ARE SUBJECT TO SPECIFIC DISCLAIMERS, SET FORTH AT www.vishay.com/doc?91000
TRANSMIT (TXD) CHANNEL
Figure 4 shows the transmission in the default mode. For
data transfer, the endec is set to that mode by BR/D = “0”.
In
the
examples
“6”
is
always
transmitted
(binary
“00000110”). The “0” is represented in the IrDA protocol by
an optical pulse. Also here the LSB is transmitted first after
the start bit. “1” is not transmitted.
Fig. 4 - Data transmission with 9.6 kbit/s,1.627 μs pulse duration
Channel 1 shows the signal from the RS232 port already
converted to 3 V logic by U1. The Endec encodes that signal
to the RZI IrDA format where a “0” is represented by a pulse.
That is the trace of channel 2. This output is connected the
TXD input of the transceiver and this signal is transmitted as
optical output signal. Channel 3 is the signal for an indicator
lamp connected to the TD_LED driver output. Use 180
serial resistor to supply voltage for limiting the current
through the LED (not shown in the circuit diagram).
When using the (not recommended) 3/16-bit pulse width the
oscillogram looks like figure 5.
Fig. 5 - Data transmission with the setting 9.6 kbit/s,
3/16 bit pulse duration (19.5 μs)
The transmission with the highest SIR bit rate of 115.2 bit/s
looks like what is shown in figure 6. However, the horizontal
time scale is different.
Fig. 6 - Data transmission with the setting 115.2 kbit/s, 1.627 μs
pulse duration. By definition, the pulse duration of 1.627 μs is
identical to the 3/16-bit pulse width.
RECEIVE (RXD) CHANNEL
In the default 9600 bit/s mode the signals will look like those
shown in figure 7 and figure 8.
Fig. 7 - Data reception with the setting 9.6 kbit/s.
Short RXD pulse
Fig. 8 - Data reception with the setting 9.6 kbit/s.
Same as in figure 7, extended pulse duration
The endec stretches the received pulses of about 2 s
duration from the transceiver output (figure 7, channel 1)
independent of the pulse duration to the full bit width
generating NRZ code (channel 2). Channel 3 is the signal for
the indicator lamp.
As shown in figure 8, channels 2 and 3, the final NRZ signal
is identical to figure 7, even when longer pulses are received.
In the 115.2 kbit/s mode the signals will look like those shown
1->
T
2->
3->
21031
STA 0
1
0
1) Ch1: TD_232 inp. pin 4, vertical scale: 2 V/div., horizontal scale: 200 s/div.
2) Ch2: TD_IR, pin 14; 1.6 s pulse duration
3) Ch3: TD_LED, pin 9
1->
2->
3->
21032
1) Ch1: TD_232, pin 4, vertical scale: 2 V/div., horizontal scale: 200 s/div.
2) Ch2: TD_IR, pin 14; 3/16 bit pulse duration
3) Ch3: TD_LED, pin 9
3->
1->
2->
21033
1) Ch1: TD_232, pin 4, vertical scale: 2 V/div., horizontal scale: 20 s/div.
2) Ch2: TD_IR, pin 14; 1.6 s pulse duration
3) Ch3: TD_LED, pin 9
1->
2->
3->
21034
1) Ch1: TOIM4232; RD_IR, pin 15, vertical scale: 2 V/div.,
horizontal scale: 200 s/div.
2) Ch2: TOIM4232; RD_232, pin 3
3) Ch3: TOIM4232; RD_LED, pin 10
1->
2->
3->
1) Ch1: TOIM4232; RD_IR, pin 15, vertical scale: 2 V/div.,
horizontal scale: 200 s/div.
2) Ch2: TOIM4232; RD_232, pin 3
3) Ch3: TOIM4232; RD_LED, pin 10
21035
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相關(guān)代理商/技術(shù)參數(shù) |
參數(shù)描述 |
|---|---|
| TOK 2 KEY | 制造商:Johnson Electric / Saia-Burgess 功能描述:KEY SPARE TOK 2 制造商:Johnson Electric / Saia-Burgess 功能描述:KEY, SPARE, TOK 2 制造商:Johnson Electric / Saia-Burgess 功能描述:KEY, SPARE, TOK 2, For Use With:P2 Panel Mounted Keylock Switches, Body Material:Nickel , RoHS Compliant: Yes |
| TOK 2 KEY | 制造商:Johnson Electric / Saia-Burgess 功能描述:KEY SPARE TOK 2 |
| TOK 3 KEY | 制造商:Johnson Electric / Saia-Burgess 功能描述:KEY SPARE TOK 3 制造商:Johnson Electric / Saia-Burgess 功能描述:KEY, SPARE, TOK 3 制造商:JOHNSON ELECTRIC 功能描述:KEY, SPARE, TOK 3, For Use With:P2 Panel Mounted Keylock Switches, Body Material 制造商:Johnson Electric / Saia-Burgess 功能描述:KEY, SPARE, TOK 3, For Use With:P2 Panel Mounted Keylock Switches, Body Material:Nickel , RoHS Compliant: Yes |
| TOK 3 KEY | 制造商:Johnson Electric / Saia-Burgess 功能描述:KEY SPARE TOK 3 |
| TOK NO 001 SPARE KEY M | 制造商:Johnson Electric / Saia-Burgess 功能描述:KEY SPARE TOK 001 制造商:Johnson Electric / Saia-Burgess 功能描述:KEY, SPARE, TOK 001 制造商:Johnson Electric / Saia-Burgess 功能描述:KEY, SPARE, TOK 001; ;ROHS COMPLIANT: YES |
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