Maxim semiconductorintroduces new chipsfor overvoltage protection .The MAX14529E/MAX14530E are overvoltage-protection devices with USB charger detection, low-dropout(LDO) regulator, and ESD protection.
When the input voltage exceeds the overvoltage threshold, the internal FET switch is turned off to prevent damage to the protected components.
The LDO output (LOUT) is powered from OUT and supplies 3.3V to the USB transceiver.
The charger detection detects a short between the USB D+ and D- data lines.
Main features of the MAX14529E/MAX14530E are : Input Voltage Protection Up to 28V , High-Current USB Charger Detection , 3.3V, 100mA LDO , Preset Overvoltage Protection Trip Level , Integrated Low RON 35mΩ (typ) FET Switch , Low-Capacitance USB High-Speed Data Line ESD , Thermal-Shutdown Protection .
Maxim Ic release MAX9526 low-power video decoder that converts all modes of NTSC and PAL composite video signals to 10-bit YCbCr component video compatible with the ITU-R BT.656 standard.
The device automatically configures itself to standard NTSC or standard PAL.
An integrated analog anti-aliasing filter eliminates the need for off-chip filtering. MAX9526 device includes a 2:1 input multiplexer that can be configured to automatically select the input based on activity.
The system clock is generated with an external 27MHz crystal and an internal oscillator. ( Optionally, a 27MHz or 54MHz external clock can be connected to the XTAL/OSC input ). An internal line-locked digital PLL is used to generate the 54MHz ADC sample clock that is synchronous to the incoming video signal with up to ±5% variation in horizontal line length. The digital output data and LLC clock are line locked to the video input and provide a standard ITU output.
The MAX9526 provides a 5-line adaptive comb filter to separate the luminance (Y) and chrominance (C) video components and reduce cross-chrominance and crossluminance artifacts. The MAX9526 operates with any type of standard composite video signal source including DVD players, video cameras, navigation systems, and VCRs.
Max9526 main features are : supports All NTSC and PAL Standards (NTSC M, NTSC J, NTSC 4.43,
PAL B/G/H/I/D, PAL M, PAL N, PAL 60 ) , Automatic Configuration and Standard Select , 10-Bit 4x Oversampling (54Msps) ADC with True , 10-Bit Digital Processing , Flexible Output Formatting , +1.8V Digital and Analog Supply Voltage , +1.7V to +3.45V Digital I/O Supply Voltage, Sleep Mode with Continuous Activity Detection .