DP83822IRHBR Detai LED explanation of pin function specifications and circuit principle instructions

The part you mentioned, DP83822IRHBR, is a Texas Instruments product. It is a Gigabit Ethernet PHY (Physical Layer Device) designed for applications that require Ethernet connectivity. The IRHBR part refers to its QFN (Quad Flat No-lead) package, and this specific part has 48 pins.

Package: QFN-48

This chip provides Gigabit Ethernet (10/100/1000 Mbps) functionality with advanced features, including low Power consumption, support for auto-negotiation, and energy-efficient operation. It typically integrates into designs for networking equipment, embedded systems, and other devices requiring Ethernet connectivity.

Pin Functionality Overview of DP83822IRHBR (48 Pins):

Pin Number Pin Name Pin Function Description 1 VSS Ground 2 VDD Power supply (3.3V) 3 TXD0 Transmit data line 0 4 TXD1 Transmit data line 1 5 TXD2 Transmit data line 2 6 TXD3 Transmit data line 3 7 TX_EN Transmit enable 8 TX_CLK Transmit Clock 9 RXD0 Receive data line 0 10 RXD1 Receive data line 1 11 RXD2 Receive data line 2 12 RXD3 Receive data line 3 13 RX_DV Receive data valid 14 RX_ER Receive error 15 RX_CLK Receive clock 16 MDC Management Data Clock 17 MDIO Management Data Input/Output 18 LED 0 Link status LED 19 LED1 Activity status LED 20 LED2 Speed status LED 21 IRQ Interrupt Request (active low) 22 RESET_B Active low reset input 23 PHYAD[4] PHY address bit 4 24 PHYAD[3] PHY address bit 3 25 PHYAD[2] PHY address bit 2 26 PHYAD[1] PHY address bit 1 27 PHYAD[0] PHY address bit 0 28 VSS Ground 29 VDD Power supply (3.3V) 30 CRSDV Carrier sense/detect valid 31 COL Collision indicator 32 RX_CLK Receive clock 33 AVDD Analog power supply 34 AVSS Analog ground 35 TX_EN Transmit enable 36 REF_CLK Reference clock 37 RGMII_TD0 RGMII Transmit Data 0 38 RGMII_TD1 RGMII Transmit Data 1 39 RGMII_TD2 RGMII Transmit Data 2 40 RGMII_TD3 RGMII Transmit Data 3 41 RGMIITXCTL RGMII Transmit Control 42 RGMII_RXD0 RGMII Receive Data 0 43 RGMII_RXD1 RGMII Receive Data 1 44 RGMII_RXD2 RGMII Receive Data 2 45 RGMII_RXD3 RGMII Receive Data 3 46 RGMIIRXCTL RGMII Receive Control 47 VSS Ground 48 VDD Power supply (3.3V)