TOIM3000, TOIM3000TR1, TOIM3232MA Selling Leads, Datasheet
MFG:TFKMXD Package Cooled:tfk D/C:09+
TOIM3000, TOIM3000TR1, TOIM3232MA Datasheet download
Part Number: TOIM3000
MFG: TFKMXD
Package Cooled: tfk
D/C: 09+
TOIM3000, TOIM3000TR1, TOIM3232MA
- Table of contents:
Info of TOIM3000
Info of TOIM3000TR1
Info of TOIM3232MA
Attentive hint
Want to post a buying lead? If you are not a member yet, please select the specific/related part number first and then fill the quantity and your contact details in the "Request for Quotation Form" on the left, and then click "Send RFQ".Your buying lead can then be posted, and the reliable suppliers will quote via our online message system or other channels soon.
Top Sellers:
TOP
About TOIM3000
PDF/DataSheet Download
Datasheet: TOIM3000
File Size: 126407 KB
Manufacturer: TEMIC [TEMIC Semiconductors]
Download : Click here to Download
About TOIC8513P
PDF/DataSheet Download
Datasheet: TOIC8513P
File Size: 88983 KB
Manufacturer:
Download : Click here to Download
About TOIC8513P
PDF/DataSheet Download
Datasheet: TOIC8513P
File Size: 88983 KB
Manufacturer:
Download : Click here to Download
TOIM3000 General Description
The TOIM3xxx series ICs provide proper timing for the front end infrared transceiver TFDS3000, as specified bythe IrDA standard. In the transmit mode, the TOIM3xxx provides IrDA-compatible electrical pulses to the infrared transceiver TFDS3000 on logic LOW electrical input. In the receive mode, the TOIM3xxx stretches received infrared pulses to the proper bit width at the operating bit rate. The IrDA bit rate varies from 2.4 to 115.2 kbit/s.
For the UART interface, the TOIM3000 uses the 1.8432 MHz clock input as the fast clock and the baud clock output from the UART to do the pulse stretching and shortening. The baud clock is 16 times the baud rate. The output pulses are fixed at 1.627 s or 3/16 of bit time.
For the RS232 interface, the TOIM3232 uses an external crystal clock 3.6864 MHz for its pulse stretching and shortening. The TOIM3232 is programmable to operate from 1200 bit/s to 115.2 kbit/s by the communication software through the RS232 port. Output pulses are software-programmable as either 1.627 s or 3/16 of bit time.
The typical power consumption of both circuits is very low with about 10 mW in operational state. It is in the order of magnitude of microwatts in standby mode.
TOIM3000 Features
Pulse shaping function (shortening and stretching) used in infrared IrDA standard applications
Directly interfaces the infrared transceiver TFDS3000*) to a UART or a microcontroller
3 V and 5 V operation with low operating current
SO16L package
Directly interfaces the infrared transceiver TFDS3000*) to a UART or a microcontroller
3 V and 5 V operation with low operating current
SO16L package
TOIM3000 Typical Application
Figure 1 shows a typical example of a UART interface. As shown, XIN accepts the 1.8432 MHz input clock, and B_CLK accepts the 16 times baud rate clock.
Set S1 = S0 = LOW ("0"). When RESET = 0, the TOIM3000 sends the data to, or receives the data from the infrared transceiver TFDS3000. If Reset is active, RESET = 1, the TOIM3000 handles the normal electrical data exchange with the RS232 port. R1 = 2.2 k optional (only necessary when RxDRD IR
line is capacitive loaded).
R2 = 100 , R3 = 10 , C1 = 6.8 F and C2 = 0.1 F. C1 and C2 are in parallel (VCC = 5 V, in case of 3 V supply, value of R3 should be reduced, see introductory text.
Single clock operation
TOIM3000 can be operated with only a single clock. In this case, B_CLK and XIN are tight together and connected to the Baudout pin of the UART. The pulse width is then shortened to 3/16 of the bit length and noise filtering is deactivated. S1 should be connected to VCC and SO to GND.
Figure 2 shows a typical example of an RS232 port interface. The TOIM3232 interfaces the RS232 port to an infrared transceiver. Due to the various voltage levels, an additional level converter (discrete or integrated) is necsessary. The baud rate generator is programmable. A description of programming is given in the Chapter "Software for the TOIM3232" page 7 (IrDA Design Guide). When BR/D = 0, the TOIM3232 interprets RD_232 data as data transmitted to the TFDS3000. On the other hand, whenever BR/D = 1, the TOIM3232 interprets RD_232 as the control word. The baud rate can be programmed to operate from 1200 bit/s to 115 kbit/s. As RS232 level converter, EIA232 or MAX232 or equivalent should be used.
The external resistors and capacitors needed are shown in figure 1. Please also refer to figure 1 for the recommended power supply filter and pull-up resistors.
The output pulse length can be programmed, see chapter "Operation Description". It is strongly recommended to use 1.627 s output pulses to save battery power.
MT58L64L18CT-10
Price: 4-6 USD
MT58L64L18CT-10 TQFP100
DL-7140-211M
Price: 5-6.5 USD
DL-7140-211M laser tube
74LVC74APG
Price: 4-5 USD
74LVC74APG - IC FLIP FLOP D-Type POS-EDG DUAL 14TSSOP
CY28346ZI-2
Price: 6.5-8 USD
CYPRESS - Clock Synthesizer with Differential CPU Outputs
PI5V330QEX
Price: 0.284-0.286 USD
PI5V330QEX Pericom Multiplexer Switch ICs
BSM300GA120DN2
Price: 1-2 USD
IGBT power module, Single switch, 1200 V, Collector-emitter voltage, 430A
SVA150XG04TB
Price: 1-2 USD
a-Si TFT-LCD, NEC, 228.096Hmm, 560V
PC354N1
Price: 0.124-0.2 USD
PC354N1T - Mini-flat Package, AC Input Type Photocoupler - Sharp Electrionic Components
RL1210JR-070R22L
Price: 0.177-0.178 USD
RL1210JR51-XX-BL - Thick Film Chip Resistor Low Ohmic - TAITRON Components Incorporated
STPS140A
Price: 0.053-0.055 USD
STPS140A - POWER SCHOTTKY RECTIFIER - STMicroelectronics
STA013
Price: 1.45-1.5 USD
STA013 - MPEG 2.5 LAYER III AUDIO DECODER - STMicroelectronics
SMBJ5347B
Price: 0.073-0.075 USD
SMBJ5347B - 5 Watt Surface Mount Silicon Zener Diodes - Micro Commercial Components
