GB/T 14027.4-1992

Abolished

Series and products of communication circuits for semiconductor integrated circuits--Products of dual-tone multi-frequency circuits

半导体集成电路通信电路系列和品种 双音多频电路系列品种

Standard Type
GBT
ICS
31.200
CCS
L56
Status
Abolished
Issue Date
1992-12-17
Implementation
1993-08-01
Centralized Committee
工业和信息化部(电子)
Issuing Authority
工业和信息化部(电子)

Application Summary AI generated

This standard specifies the series and product types of dual-tone multi-frequency (DTMF) circuits used in semiconductor integrated circuits for communication applications. It is applied in the design, production, and procurement of DTMF encoder/decoder chips for telephone systems, keypads, and other telecommunication equipment requiring tone signaling. The standard ensures compatibility and interchangeability of these circuits across different manufacturers and devices.

Related Standards

Transparency note: The application summary and key sentences on this page were automatically generated by AI from the standard's original text. This content has not been human-verified and should not be used for compliance or regulatory purposes. Always refer to the official standard document from the issuing authority.