BS 62779-1:2016 pdf download – Semiconductor devices — Semiconductor interface for human body communication Part 1: General requirements If applicable, control signals that are transmitted between the interface and a HBC modem shall be defined in the block diagram. 4.1 .3 Implementation types 4.1 .3.1 Manufacturing and assembling technology The manufacturing technologies for an electrode, for example metallic pattern, thin film, etc.,and an analog front end, for example semiconductor monolithic integrated circuit, thin-film integrated circuit, hybrid integrated circuit, module, etc, shall be stated. Details of the semiconductor technologies shall be included. An assembling technology between an electrode and an analog front end, for example modularization, integration, shall be stated. 4.1 .3.2 Package technology The package type, for example ceramic, plastic or glass, shall be given. If applicable, the IEC and/or national reference number of the outline drawing shall be stated. 4.2 Constructional specifications The physical specifications of an electrode, for example material, dimensions, location, shall be given. 4.3 Electrical specifications 4.3.1 General The electrical specifications should be given over the specified range of an operating temperature. 4.3.2 Power supply characteristics The following characteristics shall be given. a) supply voltage; b) normal mode supply current; c) disabled mode supply current. 4.3.3 Power supply type A type of power supply, for example an outlet or battery, shall be given. 4.3.4 Dynamic characteristics of analog front end 4.3.4.1 Powerline noise reduction filter, signal amplifier and high-pass filter The following characteristics shall be given with respect to the corresponding component in a powerline noise reduction filter, signal amplifier and high-pass filter. a) input impedance at a powerline noise reduction filter; b) sensitivity level; c) dynamic range; d) maximum voltage gain over a pass band; e) minimum voltage gain over a pass band; f) decrease rate of voltage gain over a stop band; g) bandwidth; h) cut-off frequency. NOTE The powerline noise reduction filter removes a high-power noise signal which can saturate the active components in the interface. The noise signal has the highest power usually at a powerline frequency, but if it has the highest power at a different frequency, the noise reduction filter is replaced with the one able to remove the corresponding noise signal. 4.3.4.2 Comparator and CDR circuit The following characteristics shall be given with respect to the corresponding component in a comparator and CDR circuit. a) minimum input voltage; b) hysteresis voltage; c) switching threshold voltage; d) lock range. 4.3.5...
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