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203261B • Isolink Proprietary Information • Products and Product Information are Subject to Change Without Notice. • April 18, 2017

1

DATA SHEET

DME, DMF, DMJ Series: Silicon Beam-Lead Schottky Mixer

Diodes – Singles, Pairs, and Quads in Ceramic Hermetic

Packages

Applications

 Microwave integrated circuits

 Mixers

 Detectors

Features

 Low 1/f noise

 Low intermodulation distortion

 Hermetically sealed packages

 Statistical process control wafer fabrication

 Packages rated MSL1, 260 C per JEDEC J-STD-020)

Description

The Isolink silicon Schottky barrier mixer diodes are designed for

applications through 20 GHz.

Schottky barrier mixer diodes are made by the deposition of a

suitable barrier metal on an epitaxial silicon substrate to form the

junction. The process and choice of materials result in low series

resistance with a narrow spread of capacitance values for close

impedance control.

A variety of forward voltages are available ranging from low values

for low, or starved, local oscillator drive levels to high values for high

drive, low distortion mixer applications. These Schottky barrier

mixer diodes are available in a wide range of packages.

Capacitance ranges and series resistances are comparable with the

packaged devices that are available up to, and including, the Ka-

band.

Schottky barrier diodes are categorized by universal mixer

applications in six frequency ranges: S, C, X, Ku, K, and Ka bands

as noted in Table 1. They may also be used as modulators and

high-speed switches.

The absolute maximum ratings of the DME, DMF, and DMJ series

of Schottky mixer diodes are provided in Table 2. Electrical and

physical specifications are provided in Tables 3 through 9.

Typical performance characteristics are shown in Figures 1

through 3. Typical mixer circuits are shown in Figure 4. Package

dimensions are provided in Figures 5 through 21.

T

able 1. Frequency Table

Frequency Band

Frequency

(GHz)

S

2 to 4

C

4 to 8

X

8.2 to 12.4

Ku

12.4 to 18.0

K

18.0 to 26.5

Ka

26.5 to 40.0