The part number " DP83848IVV/NOPB " is a Ethernet PHY (Physical Layer) transceiver from Texas Instruments (TI). It's specifically used in networking applications for Ethernet connectivity, and it supports 10/100/1000 Mbps speeds.
Package Type and Pinout
Package Type: The "IVV" in the part number refers to the package type, which is the VQFN-32 package, a 32-pin very thin quad flat no-lead package. Pinout: The DP83848IVV has a total of 32 pins in this package, each with specific functions designed for Ethernet PHY operation.Below is a detai LED Pin Function List for the DP83848IVV/NOPB with all 32 pins explained:
Pin Number Pin Name Pin Type Pin Function Description 1 X1 Input External crystal or Clock input for the PHY's oscillator. 2 X2 Output External crystal or clock output for the PHY's oscillator. 3 VSS Power Ground Ground connection for the device. 4 VDD Power Supply Power supply connection (typically 3.3V). 5 MDC I/O Management Data Clock: Clock signal used for communication with the PHY's management interface . 6 MDIO I/O Management Data Input/Output: Data signal for communication with the PHY's management interface. 7 RXD0 Input Data input from Ethernet network, bit 0 of receive data. 8 RXD1 Input Data input from Ethernet network, bit 1 of receive data. 9 RXD2 Input Data input from Ethernet network, bit 2 of receive data. 10 RXD3 Input Data input from Ethernet network, bit 3 of receive data. 11 RX_ER Input Receive error signal, indicates errors during data reception. 12 CRS_DV Input Carrier Sense / Data Valid: Indicates the presence of a valid Ethernet signal. 13 RX_CLK Input Clock for receiving data in GMII mode. 14 TXD0 Output Data output to Ethernet network, bit 0 of transmit data. 15 TXD1 Output Data output to Ethernet network, bit 1 of transmit data. 16 TXD2 Output Data output to Ethernet network, bit 2 of transmit data. 17 TXD3 Output Data output to Ethernet network, bit 3 of transmit data. 18 TX_EN Output Transmit Enable: Indicates when data is ready to be transmitted. 19 TX_CLK Output Clock for transmitting data in GMII mode. 20 COL Output Collision detect, used in half-duplex communication mode. 21 LED1 Output LED indicator for the network link status (may indicate link, activity, or speed). 22 LED2 Output LED indicator for the network link status (may indicate link, activity, or speed). 23 MDINT Output Management interrupt output. Indicates the status of PHY operation and any changes. 24 RT Input External resistor for controlling device functionality in specific modes. 25 REFCLK Input Reference clock for the PHY, typically 25 MHz. 26 RGMIIRXCTL Input RGMII Receive Control: Indicates the status of received RGMII data. 27 RGMII_RXC Input RGMII Receive Clock: Clock for RGMII mode data reception. 28 RGMII_RXD0 Input RGMII Receive Data 0: First bit of received data in RGMII mode. 29 RGMII_RXD1 Input RGMII Receive Data 1: Second bit of received data in RGMII mode. 30 RGMII_RXD2 Input RGMII Receive Data 2: Third bit of received data in RGMII mode. 31 RGMII_RXD3 Input RGMII Receive Data 3: Fourth bit of received data in RGMII mode. 32 VSS Power Ground Ground connection for the device.Frequently Asked Questions (FAQ) for DP83848IVV/NOPB:
Q1: What is the DP83848IVV/NOPB used for?
A1: The DP83848IVV/NOPB is an Ethernet PHY transceiver used for 10/100/1000 Mbps Ethernet communication in networking devices.Q2: What is the operating voltage for the DP83848IVV/NOPB?
A2: The DP83848IVV/NOPB typically operates at 3.3V.Q3: What is the maximum transmission speed of the DP83848IVV/NOPB?
A3: The maximum transmission speed is 1000 Mbps (Gigabit Ethernet).Q4: Can the DP83848IVV/NOPB be used in full-duplex and half-duplex modes?
A4: Yes, the DP83848IVV/NOPB supports both full-duplex and half-duplex modes.Q5: How is the DP83848IVV/NOPB configured?
A5: The device is configured through the MDIO/MDC interface, which allows the management of various parameters of the PHY.Q6: What is the role of the LED pins on the DP83848IVV/NOPB?
A6: The LED pins are used for visual indicators of network link status, activity, and speed.Q7: Does the DP83848IVV/NOPB support auto-negotiation?
A7: Yes, the device supports auto-negotiation for link speed and duplex mode.Q8: What is the purpose of the RX_CLK pin?
A8: The RX_CLK pin provides the clock signal used for data reception in GMII mode.Q9: Is the DP83848IVV/NOPB compatible with other network devices?
A9: Yes, it is fully compliant with IEEE 802.3 standards, making it compatible with other Ethernet devices.Q10: How does the DP83848IVV/NOPB handle errors?
A10: The device has error detection mechanisms and the RX_ER pin indicates errors during data reception.Q11: Can the DP83848IVV/NOPB be used in both 10BASE-T and 100BASE-TX modes?
A11: Yes, the DP83848IVV/NOPB supports both 10BASE-T and 100BASE-TX Ethernet standards.Q12: What is the function of the CRS_DV pin?
A12: The CRS_DV pin indicates whether a valid Ethernet signal is present and whether data is valid for transmission or reception.Q13: What is the significance of the TX_CLK pin?
A13: The TX_CLK pin provides the clock signal for data transmission in GMII mode.Q14: How can I determine the link status using the DP83848IVV/NOPB?
A14: You can use the LED pins (LED1 and LED2) to visually monitor the link status, which shows if the device is connected and the link speed.Q15: Can the DP83848IVV/NOPB support Gigabit Ethernet speeds?
A15: Yes, the DP83848IVV/NOPB supports Gigabit Ethernet (1000 Mbps) speeds in full-duplex mode.Q16: Does the DP83848IVV/NOPB support both RGMII and GMII modes?
A16: Yes, the DP83848IVV/NOPB can operate in both RGMII and GMII modes depending on the configuration.Q17: How is power supplied to the DP83848IVV/NOPB?
A17: Power is supplied through the VDD pin, which typically requires 3.3V.Q18: What is the MDIO interface used for?
A18: The MDIO interface is used for managing and configuring the PHY, allowing the host processor to read and write configuration settings.Q19: Can I use the DP83848IVV/NOPB for industrial applications?
A19: Yes, the DP83848IVV/NOPB can be used in industrial and commercial Ethernet applications.Q20: Does the DP83848IVV/NOPB support Power over Ethernet (PoE)?
A20: No, the DP83848IVV/NOPB does not support Power over Ethernet (PoE).