초록 ▼

A two piece zinc die-cast housing and cover assembly includes an internal center wall structure which divides the included space into two electromagnetically isolated cavities. A VCO circuit sub-assembly and a PLL circuit sub-assembly are each removably affixed to respective opposite sides of the ce

A two piece zinc die-cast housing and cover assembly includes an internal center wall structure which divides the included space into two electromagnetically isolated cavities. A VCO circuit sub-assembly and a PLL circuit sub-assembly are each removably affixed to respective opposite sides of the center wall while each is electrically interconnected to the other directly through at least one aperture provided in the center wall. A one piece molded plastic header is removably affixed to the assembly so as to close the remaining side of the electromagnetically isolated cavity and includes apertures through which electrical leads extend from the circuit sub-assemblies for self-aligning connection to sockets or other external electrical connectors. An additional internal metallic shield directly affixed to the VCO sub-assembly as well as other features cooperate to provide an overall improved frequency synthesizer module of this general type.

대표청구항 ▼

A frequency synthesizer module comprising: a two-piece metallic-die cast housing and cover assembly including a an internal metallic wall disposed between two end walls which divides the space enclosed thereby into two isolated cavities; a VCO circuit sub-assembly on a first substrate which is solde

A frequency synthesizer module comprising: a two-piece metallic-die cast housing and cover assembly including a an internal metallic wall disposed between two end walls which divides the space enclosed thereby into two isolated cavities; a VCO circuit sub-assembly on a first substrate which is solder-affixed onto a first side of said internal metallic wall; a PLL circuit sub-assembly on a second substrate which is removably affixed with adhesive into position adjacent a second side of said internal metallic wall, each said circuit sub-assembly being electrically interconnected directly to the other by at least one conductor passing through at least one aperture in said internal metallic wall; and said housing includes said two end walls transverse to said internal metallic wall which is centrally disposed therebetween and wherein said housing further includes two mounting brackets, each extending generally parallel to said internal metallic wall and located between respective lower inside corners of said end walls.