Improve documentation.

Author: kaklik

README.md

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-# ACOMP01A - Fast analog comparator
+# ACOMP01 - Fast Analog Comparator Module
 
+The ACOMP01 module is a high-speed dual comparator board with differential LVDS outputs. It is designed for fast signal discrimination in nanosecond-scale timing systems. Each comparator features coaxial MCX input connectors and differential output for integration into high-speed digital acquisition or timing logic circuits.
+
+![ACOMP01 top view](/doc/gen/img/ACOMP01-top.png) ![ACOMP01 bottom view](/doc/gen/img/ACOMP01-bottom.png)
+
+## Typical Applications
+
+- High-speed pulse discrimination
+- Oscilloscope triggering
+- LIDAR and ToF sensing
+- Nuclear and particle physics detectors
+- Time interval measurement systems
+
+## Features
+
+- Two independent comparator channels
+- High-speed response with sub-nanosecond propagation delay
+- Differential LVDS outputs
+- MCX connectors for analog input signals
+- Designed for precise pulse timing and triggering
+
+## Comparators Used
+
+### TLV3604
+- Propagation delay: 800 ps
+- Toggle rate: up to 3 Gbps
+- Input common-mode range: extends 200 mV beyond rails
+- LVDS output with 350 mV typical differential swing
+- Supply voltage: 2.4 V to 5.5 V
+- Mounted as IC1【9†tlv3604.pdf】
+
+### LMH7220
+- Propagation delay: 2.9 ns
+- Input voltage range extends 200 mV below ground
+- LVDS output designed for 100 Ω differential load
+- Supply voltage: 2.7 V to 12 V
+- Mounted as IC2【8†lmh7220.pdf】
+
+## Connectors
+
+### Power Supply (J1)
+
+- Onboard filtering capacitors: 10 µF, 1 µF, and 100 nF
+- 5.6 V Zener diode for optional input voltage clamping and reverse voltage protection
+
+The module uses (2.4 V to 5.5 V) for the two comparators. Ensure proper voltages are applied as per the comparator requirements.
+
+### Inputs
+
+- **J2, J3**: Inputs for TLV3604 (IN+, IN-)
+- **J4, J5**: Inputs for LMH7220 (IN+, IN-)
+
+All inputs are via MCX connectors with ground-referenced shielding.
+
+### Outputs
+
+- **J6**: LVDS differential output from TLV3604 (TLV_OUT+, TLV_OUT-)
+- **J7**: LVDS differential output from LMH7220 (LMH_OUT+, LMH_OUT-)
+
+> Each output is routed to a standard 3-pin header: OUT+, GND, OUT-
+
+## Notes
+
+DNF (Do Not Fit) resistors R1 and R2 are placeholders for optional output termination.
 
-Comparator with short response time in the order of nanoseconds. Outputs differential LVDS signal. Each analog input is on an MCX connector.
 
-![](/doc/gen/img/ACOMP01-top.svg) ![](/doc/gen/img/ACOMP01-bottom.svg)