IEC 60748-4:1997

Gives requirements for the following categories of interface integrated circuits:line circuits (transmitters and receivers), sense amplifiers, peripheral drivers (including memory drivers) and level shifters, voltage comparators, linear and non-linear analogue-to digital and digital-to-analogue converters, control circuits for switch-mode power supplies, companding PCM coder-decoders (CODEC), digital interface integrated circuits (UBF), integrated service digital network (ISDN).