The MAX12005 satellite IF switch IC is designed for multi-user applications supporting two quad universal low-noise blocks (LNBs) to be matrix switched to four satellite receivers.
The MAX12005 is a satellite IF switch IC designed for multi‑user applications, supporting eight 75 Ω inputs and four 75 Ω outputs. It offers selectable input gain of 0 dB, +6 dB or +12 dB and four operational modes (LNB, cascade master, cascade slave, single) controlled via voltage/tone or DiSEqC signals.
The device is fabricated in an advanced SiGe BiCMOS process and supplied in a lead‑free 48‑pin TQFN package (7 mm × 7 mm). Detailed pin descriptions, functional diagrams, electrical characteristics, and DiSEqC command tables are provided for system integration and layout design.
| Operation Frequency | 950 MHz – 2150 MHz |
|---|---|
| Switch Isolation | >30 dB |
| Input Gain Steps | 0 dB / +6 dB / +12 dB |
| Package | 48‑pin TQFN (7 mm × 7 mm) |
| Supply Voltage (VCC) | 3.0 V – 3.5 V |
| Input Return Loss | -12 dB |
| Output Return Loss | -12 dB |
| Port‑to‑Port Isolation | 33 dB |
| DiSEqC Decoders | Four DiSEqC K 2.0 decoders |
It is supplied in a lead‑free 48‑pin TQFN package measuring 7 mm by 7 mm.