Create a device

We need to create a device or find a complete chip: USB interface. Single-channel audio ADC and DAC with 32 kHz sampling (synchronous work is preferred) as well as 2 UART’s, working at 9600,19200,38400,57600,115200 baud, 2 input and 2 output lines must be connected to a single USB port. The output line status must be independently changed, the ability to initiate an interrupt on input line level change is needed. The device should work in full speed USB 1.1 or USB 2.0 mode. ADC/DAC as well as UART must be fully independent. The device interface must come with all necessary documentation or program code, so that the device can be easily implemented in software under linux or FreeBSD operating system. Term - 1 week. Price - $300