Trans-impedance Amplifier for Gas Sensor Analog Front-end
Transimpedance Ampllifier(TIA) amplifies current to voltage. Nested chopper technique, Weak Inversion design aloow low noise, low offset structure. In low frequency, the signal can be amplified in different ranges. TIA circuit is implemented in tsmcTM 0.18nm BCMMOS technology. Chip size is 1.175mm x 1.175mm.
USB 1.1 PHY
The 3.3v USB1.1 device PHY is capable of transmitting and receiving serial data at both full speed (12Mbit/s) and low speed (1.5Mbit/s) data rates. It is designed to meet standard logic to interface with the physical layer of the universal serial bus.
This IP is a precision analog output CMOS integrated-circuit temperature sensor that operates over ？45°C to 85°C. The power supply operating range is 2.4 V to 3.3 V. The transfer function of IP is predominately linear. The temperature error increases linearly and reaches a maximum of ±2.0°C at the temperature ran..
This IP is a high efficiency mono bridge-tried load (BTL) Power-stage for PWM(Pulse width modulation) driver . This IP can drive 8-Ω speaker. This IP features a low-power consumption shutdown mode, and short-circuit protection detector
The power on reset consists of a Schmitt trigger and simple logic for forced reset input, which
is forced asynchronous reset. Output port is, that means it is high to set flip-flop in particular state