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參數(shù)資料
| 型號(hào)： | TOIM5232-TR3 |
| 廠商： | Vishay Semiconductors |
| 文件頁(yè)數(shù)： | 6/13頁(yè) |
| 文件大?。?/td> | 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(yè)面： | 2865 (CN2011-ZH PDF) |
| 其它名稱： | 751-1491-6 |
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TOIM5232
www.vishay.com
Vishay Semiconductors
Rev. 1.3, 04-Jul-12
2
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
BLOCK DIAGRAM
Notes
(1) Crystal should be connected as shown in the block diagram or in the recommended application circuit. Connect a 100 k
resistor from pin
4 to pin 5 and from pin 4 and pin 5 a 22 pF capacitor to ground, respectively. When an external clock is available connect it to pin 4 leaving
pin 5 open. The external resistor of 100 k
is used to accelerate the start of the oscillation after reset or power-on. The value depends on
the “Q” of the resonator. With low Q resonators no resistor is needed. The start-up time of the oscillator is between 30 μs (with piezo
resonators) and above 2 ms with high Q quartzes.
(2) This condition is fulfilled with all Vishay IR transceivers.
PIN ASSIGNMENT AND DESCRIPTION
PIN NUMBER
SYMBOL
DISCRIPTION
I/O
ACTIVE
1
RD_232
Received signal data output of stretched signal to the RS232 RXD line (using level
converter).
OHigh
2
TD_232
Input of the signal to be transmitted from the RS232 port TXD line
(passing the level converter).
IHigh
3
VCC_SD
This pin can be used to shut down a transceiver (e.g., TFDx4xxx).
Output polarity: Inverted RESET input.
OLow
4X1
Crystal input clock, 3.6864 MHz nominal for 9.6 kbit/s default setting. Input for external
clock (1). Option: 7.3728 MHz for 19.2 kbit/s default operation.
I
5X2
Crystal (1)
I
7
GND
Ground in common with the RS232 port and IrDA transceiver ground
9
TD_LED
Transmit LED indicator driver. Use 180
current limiting resistor in series to LED to
connect to VCC (VCC = 3.3 V).
OLow
10
RD_LED
Receive LED indicator driver. Use 180
current limiting resistor in series to LED to connect
to VCC (VCC = 3.3 V).
OLow
12
S1
User programmable bit. Can be used to turn on/off a front-end infrared transceiver (e.g., an
infrared module at the adapter front).
OLow
13
S2
User programmable bit. Can be used to turn on/off a front-end infrared transceiver (e.g., an
infrared module at the adapter back).
OLow
14
TD_IR
Data output of shortened signal to the infrared transceiver.
O
High
16
RD_IR
Data input from the infrared transceiver, min. pulse duration 1.63 μs (2)
ILow
17
VCC
Supply voltage
I
18
RESET
Resets all internal registers. Initially must be high (“1”) to reset internal registers. When high,
the TOIM5232 sets the IrDA default bit rate of 9600 bit/s, sets pulse width to 1.627 μs.
The VCC_SD output is simply an inverted reset signal which allows shutdown of a TFDx4x00
transceiver when applying the reset signal to the TOIM5232. When using devices with
external SD like TFDU4101, the reset line can be used directly as shutdown signal.
RESET pin can be controlled by either the RTS or DTR line through RS232 level converter.
Minimum hold time for resetting is 1 μs.
Disables the oscillator when active.
High
19
BR/D
Baud rate control/data
BR/D = 0, data communication mode:
RS232 TXD data line is connected (via a level shifter) to TD_232 input pin. The TXD - signal
is appropriately shortened and applied to the output TD_IR, driving the TXD input of the IR
transceiver. The RXD line of the transceiver is connected to the RD_IR input. This signal is
stretched to the correct bit length according to the programmed bit rate and is routed to the
RS232 RXD line at the RD_232 pin.
BR/D = 1, programming mode:
Data received from the RS232 port is interpreted as control word. The control word
programs the baud rate width will be effective as soon as BR/D return to low.
6, 8, 11, 15, 20
NC
TD_232
RD_232
BR/D
RESET
TD_IR
RD_IR
TD_LED
RD_LED
V
CC_SD
S2
S1
GND
X1
X2
V
CC
Oscillator
Endec
Baud
generator
Logic
18079
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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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