Hx8872c Datasheet __full__ Official
| Pin # | Name | Type | Description | |-------|------------|--------|--------------------------------------| | 1 | TP_TXP | O | TP transmit positive (to magnetics) | | 2 | TP_TXN | O | TP transmit negative | | 3 | VDD33 | P | 3.3V power | | 4 | TP_RXP | I | TP receive positive | | 5 | TP_RXN | I | TP receive negative | | 6 | GND | P | Ground | | 9 | FX_SD | I | Fiber signal detect (active low) | | 10 | FX_RD+ | I | Fiber receive data positive (PECL) | | 11 | FX_RD- | I | Fiber receive data negative (PECL) | | 12 | FX_TD+ | O | Fiber transmit data positive (PECL) | | 13 | FX_TD- | O | Fiber transmit data negative (PECL) | | 21 | MODE_SEL0 | I | Mode select bit 0 (pull-up/down) | | 22 | MODE_SEL1 | I | Mode select bit 1 | | 35 | LED_LINK | O | Link status (active low) | | 36 | LED_ACT | O | Activity blink | | 44 | XTAL_IN | I | 25MHz crystal input | | 45 | XTAL_OUT | O | 25MHz crystal output |
Ideal for use in automotive, industrial, and personal electronics devices
Below is a comprehensive technical overview that would typically appear in its datasheet.
Single-chip audio power amplifier (class AB, low-voltage) Typical use: Portable audio devices, battery-powered speakers, phones, multimedia devices. Package: Commonly available in SOP-8 or MSOP-8 (check supplier). Supply voltage (Vcc): Typical range 2.5 V to 5.5 V (verify with specific vendor datasheet) Output power: Up to ~3 W per channel into 4 Ω at 5 V (single-ended) — actual power depends on supply voltage, load impedance, and THD+N. Quiescent current: Typically low (tens to hundreds of μA in standby; a few mA in active mode) — refer to datasheet section for exact figures. Shutdown/Standby pin: Usually provided to reduce power consumption. Gain: Fixed internally (commonly around 20–30 dB) or set by external resistors depending on variant. Thermal protection: Integrated thermal shutdown and short-circuit protection. Pop-and-click suppression: Soft-start and mute functions included on many revisions. Inputs: Differential or single-ended input pins; input coupling capacitors recommended. Outputs: BTL (bridge-tied load) outputs for speaker driving, may also support single-ended configurations with external components. ESD protection: I/O protection on most commercial samples. hx8872c datasheet
| MODE_SEL1 | MODE_SEL0 | Mode Description | |-----------|-----------|-------------------------------------------| | 0 | 0 | Auto-negotiation TP, Fiber fixed 100FDX | | 0 | 1 | Force TP 100FDX, Fiber 100FDX | | 1 | 0 | Force TP 10HDX, Fiber 100FDX (rare) | | 1 | 1 | Isolate / Loopback test mode |
Page 24 of the typical HX8872C datasheet shows a reference schematic. Let us break it down component by component.
The is more than a 75-page PDF – it is the complete specification manual that governs how your display behaves. By systematically studying the pinout, power requirements, timing diagrams, command set, and application notes, you eliminate guesswork from your design. | Pin # | Name | Type |
This feature allows the system to update only a specific region of the screen while keeping the rest of the screen static or off. This is critical for:
The IC utilizes built-in shift registers that accept cascading logic signals to toggle display lines sequentially. The bi-directional architecture gives developers flexibility:
Manufactured by Himax, a leader in display driver technology, the HX8872C is designed to meet the demands of modern display applications, ranging from consumer electronics to industrial equipment. 2. Key Features and Technical Specifications Based on the available documentation, the Go to product viewer dialog for this item. boasts several key technical characteristics: Himax Technologies Part Number: Function: High-performance TFT-LCD driver IC Package Type: QFP64 (Quad Flat Package - 64 pins) Supply voltage (Vcc): Typical range 2
Safety logic forces automatic shutdown if internal chip temperatures exceed 150°C. Internal Architecture & Block Diagram
The HX8872C is a "workhorse" IC because of its reliability. You will most likely encounter it in: Touchscreen panels on factory machinery.
