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Opamp opinion???
Hi there, I need to find a low cost, up to 5MHz (stable gain), single supply (not more than 5.5Vdc), rail to rail (this is not critical) operational amplifier. I don't mind if...
Tuesday, 21 April 2009 - 08:06
JTAG fuse bit simple question
Hi there, I would like to know if I reset the JTAG fuse bit then will I be able to reprogram it through ISP? Thanks.
Tuesday, 14 April 2009 - 17:11
1KHz to 5MHz Sine wave generator ideas
Hi there, I need your ideas for a future project. The specs are: 1KHz-5MHz / 0.1% accuracy, sine wave generator outputs. The outputs will be more than one, each one with...
Thursday, 9 April 2009 - 14:13
USB mouse comunication protocoll???
Hi there, Does anybody knows how the standards of a USB mouse (for pc) comunication protocoll??? Thanks.
Monday, 6 April 2009 - 06:23
.hex file question
Hi there, Till now, I build my source code to produce a hex file and then using the AVRStudio and my STK500, I program the devices. My problem is that I have to manualy set the...
Sunday, 29 March 2009 - 12:08
isolated amplifier for 8Ohm speaker.
Hi there, I am using the ISD1760 sound rec/play ic for playing voice messages. The ISD1760 is been supplied by a 5V/180mA isolated regulator. After this, the ISD1760 analog output...
Friday, 6 March 2009 - 06:24
AT90CAN32 XTAL terrible problem
Hi there, I have finished a series of new designs using the AT90CAN32-16AU (64 pins TQFP package). The setup is: Vcc = 5Vdc XTAL = 16MHz (2 x 22pF) - a good ground plane over the...
Tuesday, 24 February 2009 - 07:00
FPGA newbie question
Hi there, I would like to get start with FPGAs. I am good enough both in ANSI C programming and digital designing (MSI designing, Boole algevra e.t.c.). I know nothing about pcb...
Wednesday, 18 February 2009 - 12:18
RFID question
Hi there, I have used both HTRC110 and EM4095 ics. These are readers for both read only and read/write 125KHz RFID tags. The maximum contact distance I got was about 15 cm. Can...
Friday, 6 February 2009 - 21:37
shift registers cascading problem
Hi there, I am using 3 shift registers in series (cascading). The 1st one is the TPIC6B595 (from texas instruments), the second is the 74HC595 from Philips and the third one is...
Tuesday, 3 February 2009 - 13:40
IAR compiler for ATMEL's ARM core
Hi there, I would like to use the ATMEL's AT91SAM7A3 ARM based microcontroller. I am a user of IAR C Compiler and I would like to use the same compiler for the ARM core. I went to...
Wednesday, 28 January 2009 - 12:10
Simetrical power supply from DC voltage
Hi there, I would like to ask if there is any way to produce +/-5Vdc from a 12V battery voltage, without using a DC/DC converter with a transformer output. Thank you.
Tuesday, 27 January 2009 - 08:51