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Recent content by amirke

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    [SOLVED] Distance between MCU-Phy-Magnetics-RJ45

    In PULSE - Layout Considerations for Pulse Ethernet Magnetics and Ethernet Connector Modules note it says: "For EMI consideration, this distance must be 25mm (approx. 1 inch) or greater for both discrete and integrated magnetics."...
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    [SOLVED] Distance between MCU-Phy-Magnetics-RJ45

    And one more question : Why the DISTANCES between the PHY and the magnetics needs to be AT LEAST 1 inch ? Thanks
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    [SOLVED] Distance between MCU-Phy-Magnetics-RJ45

    Thanks FvM, So assumingly that all traces are terminated correctly and controlled impedances, The, max distance 1 < 10cm max distance 2 = no restriction max distance 3 = no restriction Correct? Can you point me to a good article / application note ?
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    [SOLVED] Distance between MCU-Phy-Magnetics-RJ45

    Hi, I want to designt a fast ethernet line (1 Gigabit) My SOC (xilinx Zynq) has to be connected to a PHY then to magnetics and finally to a RJ45 connector SOC-------------PHY-----------Magnetics---------RJ45 |---distance 1---|---distance 2---|---distance 3---| I know that thumb rule talks...
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    [SOLVED] 915Mhz Antenna design

    What is the amount of ground needed? the rectangle around the chip? On 1 layer? 2 layers? more Is there any thumb rules for placing the chip antenna?
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    [SOLVED] 915Mhz Antenna design

    Thanks for the assitance
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    [SOLVED] 915Mhz Antenna design

    How do I take into consideration wire length, if it is not straight? (in case of long-distance transmission) What are the possible damages in case of not using an antenna at all (or not fitted antenna - longer/shorter)
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    [SOLVED] 915Mhz Antenna design

    Thank you, guys. This is enlighting. The reason I am asking of a wire-based antenna is that of placement issues. I have a minimal PCB design, and thus I want the antenna will be placed out of the PCB. So, the conclusion - an 82mm length wire Will do the job? Is a specific wire is recommended...
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    [SOLVED] 915Mhz Antenna design

    Hello all, I have a communication system based on a 915MHz carrier wave. The communication is for less than 1 meter. No need for PA in the system. What are the options for the antenna in the circuit 10 simple wire soldered to the PCB transceiver (wire - 50 ohm) 2) Chip antenna 3) PCB antenna...
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    Bluetooth Board (IC) to connect to headset

    Yes, It will transmit a microphone attached to it. (didn't find any related thread :()
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    Bluetooth Board (IC) to connect to headset

    Anyone? Will BTM835/CSR8635 will do the work ?
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    Bluetooth Board (IC) to connect to headset

    I am interesting to connect an industrial wireless (BT) head set to my controller and to stream music to the headset. What are the options for audio BT transciever ? It should have interface to an external host to send data (audio) via SPI/I2S .
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    [SOLVED] Transmitter for short distance (10cm)

    Thanks FvM Is there a reference to see for transmit data with inductive coupled?
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    [SOLVED] Transmitter for short distance (10cm)

    Thank you Klaus, So you don't see any problem to transmit data modulated on ISM frequencies (with wavelength above 30cm) for low distances (below 10cm)?
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    [SOLVED] Transmitter for short distance (10cm)

    Can anyone tell me what is the connection between wavelength and transmission distance? for example transmission wavelength of 30cm for a distance of 10cm?
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