Welcome to our site! EDAboard.com is an international Electronics Discussion Forum focused on EDA software, circuits, schematics, books, theory, papers, asic, pld, 8051, DSP, Network, RF, Analog Design, PCB, Service Manuals... and a whole lot more! To participate you need to register. Registration is free. Click here to register now.
The link you have posted points to the english version of the Data-sheet (I downloaded and checked !). This is the same one I have with me. I provides all the info required to use the chip to build a VU meter.
Let me know if you have problems - I have used this chip before.