SPRACN9F May 2023 – August 2024 AM67 , AM67A , AM68 , AM68A , AM69 , AM69A , DRA821U , DRA821U-Q1 , DRA829J , DRA829J-Q1 , DRA829V , DRA829V-Q1 , TDA4AEN-Q1 , TDA4AH-Q1 , TDA4AL-Q1 , TDA4AP-Q1 , TDA4APE-Q1 , TDA4VE-Q1 , TDA4VEN-Q1 , TDA4VH-Q1 , TDA4VL-Q1 , TDA4VM , TDA4VM-Q1 , TDA4VP-Q1 , TDA4VPE-Q1
The methodology for validating the DDR interface is outlined in this section. LPDDR4 interfaces, as defined in the JEDEC specification, uses eye masks defined at a target BER (Bit Error Rate) to determine pass or fail for signal integrity. It is essential to perform channel simulations using IBIS models to generate the signal eye diagrams at the targeted BER. Channel simulation techniques are widely used in SerDes interface analysis. These are introduced for memory interfaces starting from DDR4 and LPDDR4.