Renesas CD22M3494MQZ96

Overview

CD22M3494MQZ96 from Intersil is a 16 × 8 × 1 BiMOS-E analog crosspoint switch with 128 independently controllable transmission gates, supporting DC-to-50 MHz signal routing, 4 V to 15 V dual-supply operation (VDD/VSS/VEE), and ±25 mA transmission gate current capability - deployed in PBX systems for non-blocking voice channel switching.

For engineers reviewing the CD22M3494MQZ96 datasheet, CD22M3494MQZ96 pinout, CD22M3494MQZ96 application, or CD22M3494MQZ96 equivalent, key selection criteria include guaranteed r_ON matching (≤10 Ω Δr_ON), low crosstalk (−95 dB feedthrough), wide analog input swing (VEE to VDD), and PLCC-44 Mitel-lead-compatible packaging for legacy telecom board reuse.

Technical Context

The CD22M3494MQZ96 implements a 7-to-128 line decoder driving latched BiMOS-E transmission gates, enabling parallel address decoding via AX0–AX3 (X-row) and AY0–AY2 (Y-column) inputs. Each switch state is controlled by DATA and strobed by STROBE, with synchronous reset via RESET and cascading support via CS.

It operates with three independent supply rails: VDD (4–15 V positive), VSS (digital ground reference), and VEE (analog negative rail), allowing analog signals to swing fully from VEE to VDD. Input voltage tolerance extends to ±0.5 V beyond rails, and latch-up immunity exceeds 50 mA.

Key Specifications

Pinout & Package

CD22M3494MQZ96 uses a 44-lead Plastic Leaded Chip Carrier (PLCC) package compatible with Mitel lead pitch (JEDEC MS-018AC, pkg drawing N44.65), measuring 17.4 mm × 17.4 mm × 3.6 mm, with gull-wing leads and pin 1 identifier notch.

Key Features

Applications

Equivalent & Alternatives

The following parts are listed as comparable options for similar analog crosspoint switching applications.

Compared with MT8816 and M3494, CD22M3494MQZ96 uniquely guarantees r_ON matching ≤10 Ω over full industrial temperature range and supports Pb-free reflow - making it the only option qualified for high-precision, thermally demanding, and environmentally compliant applications.

Availability

CD22M3494MQZ96 is available at Aetrix Electronics and suitable for telecom infrastructure, automated test equipment, broadcast video routing, and programmable instrumentation requiring stable component supply across long product lifecycles.

Supply support for CD22M3494MQZ96 includes scheduled delivery planning, volume procurement assistance, BOM continuity management, traceable sourcing, and lifecycle availability coordination for OEM customers, industrial embedded developers, connected-device designers, and electronics production programs.

Manufacturer

Intersil Corporation (now part of Renesas Electronics) is a U.S.-based semiconductor company specializing in precision analog, power management, and interface ICs for industrial, aerospace, and communications markets.

The CD22M3494MQZ96 belongs to Intersil's BiMOS-E analog switch family, engineered for high-density, low-distortion signal routing in legacy and upgradeable telecom and test systems where pin compatibility and parameter stability are critical.

FAQ

What is the maximum operating frequency supported by the CD22M3494MQZ96 for analog signal switching?

The CD22M3494MQZ96 supports a −3 dB bandwidth of 50 MHz under standard test conditions (CL = 3 pF, RL = 75 Ω, VIN = 2 V_P-P). This enables reliable switching of composite video, baseband digital, and medium-speed analog signals without significant amplitude roll-off. Performance remains consistent across the full −40°C to +85°C operating range, and the CD22M3494MQZ96 maintains low distortion (<0.01% THD at 1 kHz) within this band.

Does the CD22M3494MQZ96 support negative analog input voltages?

Yes, the CD22M3494MQZ96 supports analog input voltages spanning the full range from VEE to VDD. When VEE is biased at −6 V and VDD at +6 V, the CD22M3494MQZ96 accommodates ±6 V analog signals without clipping or degradation. The absolute maximum ratings allow VEE to be as low as −0.5 V relative to VDD, and the BiMOS-E process ensures rail-to-rail conduction capability - a key feature confirmed in the FN2793 datasheet Section 1.

How many switches can be active simultaneously on the CD22M3494MQZ96?

Any number or combination of the 128 switches in the CD22M3494MQZ96 may be active concurrently. Each switch is individually addressable and latched, so multiple X-Y connections (e.g., X0→Y0, X5→Y3, X12→Y7) can be established in parallel. There is no hardware-imposed limit on simultaneous connections - behavior is governed solely by the applied AX/AY addresses, DATA states, and STROBE timing as defined in the truth tables on pages 7–8 of the FN2793 datasheet.

What is the purpose of the CS (Chip Select) pin on the CD22M3494MQZ96?

The CS pin on the CD22M3494MQZ96 enables cascading of multiple devices to build larger crosspoint matrices - for example, two CD22M3494MQZ96 units can be combined to create a 32×8 array. When CS is high, the device responds to ADDRESS and DATA inputs; when low, it ignores control signals and presents high-impedance outputs. This allows hierarchical addressing in multi-chip systems without external gating logic, and the CD22M3494MQZ96 datasheet explicitly cites CS as essential for "matrix expansion" in the Features section.

Is the CD22M3494MQZ96 RoHS-compliant and suitable for Pb-free reflow soldering?

Yes, the CD22M3494MQZ96 is RoHS-compliant and qualified for Pb-free reflow soldering per IPC/JEDEC J-STD-020. It features 100% matte tin termination and is MSL-3 rated. The FN2793 datasheet (Note 3, page 2) confirms that Intersil's Pb-free plus anneal process uses RoHS-compliant molding compounds and die attach materials compatible with both SnPb and Pb-free thermal profiles - making the CD22M3494MQZ96 suitable for modern SMT assembly lines.