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[professional literacy] specific direction of analog integrated circuits
2022-07-05 07:46:00 【Senator】
simulation IC Main design direction :
Category one
- AD/DA: High precision , High speed
- PLL: low power consumption , all-digital ,Ultra-jitter
- Power management :DC-DC
- memory:GDDRx,LPDDRx,HBMx
- Serdes:56G,112G,PCIe Gen5/6,USB 4.0…
Prospects for development :AD/DA > Serdes > PLL ≈ memory > Power management
Category two
1, RF wireless field , PLL,PA,LNA And so on , Apply to Wi-Fi And other wireless fields
2, Power management ,DC- DC,LDO etc.
3, Clock class ,Oscillator,MEMS The clock ,PLL,DLL
4, Storage class ,DDR,SRAM,standcell
5 High speed interface class ,USB,PCIE etc.
Analog to digital conversion class ADC,DAC
Category three
PMU modular ,ABB modular ,TX,RX,PLL These are the main directions , Refine it :
- PMU There are mainly DCDC LDO Wait for the power control module
- ABB There are mainly BPF、ADDA And other key modules
- TX There are mainly MIXER,PA And other key modules
- RX It's also MIXER,LNA,TIA And other key modules
- SX There are mainly VCO,PLL System ,CMU,LO And other key circuits
Then the main challenges at present are ADDA,PLL( especially ADPLL),PA Wait a few directions .
PMU:(Pressure Measuring Unit) Power management unit .
DCDC: Power module ; DC DC converter (Direct Current Direct Current Converter).
LDO: Low differential linear voltage regulator (Low Dropout Regulator)
ABB: The frequency converter converts fixed frequency alternating current into variable frequency 、 AC power supply with variable voltage .
BPF: Bandpass filter (Berkeley Packet Filter)
TX: The emitter (TX) And receiver (RX). Low noise amplifier (LNA) And mixer (Mixer) It is an indispensable key circuit in radio frequency receiver of wireless communication , Used in RF receiving circuit .
TIA: Transimpedance amplifier (Transimpedance amplifier, abbreviation TIA).
PA:(Power Amplifier), power amplifier , Used in RF transmitting circuit .
PA, It can amplify the transmitted signal ,LNA, It can improve the receiving sensitivity , That is, the improvement of receiving ability , Wireless communication is a common means to increase distance .
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