Overview
The MC1496DG, produced by onsemi, is a monolithic balanced modulator/demodulator integrated circuit. This device is designed for applications where the output voltage is the product of an input voltage (signal) and a switching function (carrier). It is particularly useful in suppressed carrier and amplitude modulation, synchronous detection, FM detection, phase detection, and chopper applications.
Key Specifications
| Parameter | Value | Unit |
|---|---|---|
| Applied Voltage (V6−V8, V10−V1, etc.) | 30 | Vdc |
| Differential Input Signal | ±5.0 ±(5+I5Re) | Vdc |
| Maximum Bias Current (I5) | 10 | mA |
| Thermal Resistance, Junction−to−Air (RJA) | 100 | °C/W |
| Operating Ambient Temperature Range (MC1496) | 0 to +70 | °C |
| Operating Ambient Temperature Range (MC1496B) | −40 to +125 | °C |
| Storage Temperature Range | −65 to +150 | °C |
| Electrostatic Discharge Sensitivity (ESD) - Human Body Model (HBM) | 2000 | V |
| Electrostatic Discharge Sensitivity (ESD) - Machine Model (MM) | 400 | V |
| Carrier Suppression (fC = 500 kHz, 60 mVrms sine wave) | −65 | dB |
| Common Mode Rejection | −85 | dB |
| Signal Gain (VS = 100 mVrms, f = 1.0 kHz; |VC|= 0.5 Vdc) | 2.5 to 3.5 | V/V |
| Single−Ended Input Impedance (f = 5.0 MHz) | 200 kΩ, 2.0 pF | |
| Single−Ended Output Impedance (f = 10 MHz) | 40 kΩ, 5.0 pF | |
| Input Bias Current | 12 μA | |
| Input Offset Current | 0.7 to 7.0 μA | |
| Output Offset Current | 14 to 80 μA | |
| Common−Mode Input Swing (fS = 1.0 kHz) | 5.0 Vpp | |
| Common−Mode Quiescent Output Voltage | 8.0 Vpp | |
| Differential Output Voltage Swing Capability | 8.0 Vpp | |
| Power Supply Current (ICC + IEE) | 2.0 to 5.0 mA | |
| DC Power Dissipation | 33 mW |
Key Features
- Excellent Carrier Suppression: Up to −65 dB at 0.5 MHz and −50 dB at 10 MHz.
- Adjustable Gain and Signal Handling.
- Balanced Inputs and Outputs.
- High Common Mode Rejection: −85 dB typical.
- Contains 8 Active Transistors.
- Pb−Free Package available.
- Operates over a wide temperature range: 0 to +70°C for MC1496 and −40 to +125°C for MC1496B.
Applications
- Suppressed Carrier and Amplitude Modulation.
- Synchronous Detection.
- FM Detection.
- Phase Detection.
- Chopper Applications.
Q & A
- What is the primary function of the MC1496DG? The MC1496DG is a balanced modulator/demodulator, designed to produce an output voltage that is the product of an input voltage (signal) and a switching function (carrier).
- What are the typical applications of the MC1496DG? Typical applications include suppressed carrier and amplitude modulation, synchronous detection, FM detection, phase detection, and chopper applications.
- What is the carrier suppression capability of the MC1496DG? The MC1496DG offers excellent carrier suppression, up to −65 dB at 0.5 MHz and −50 dB at 10 MHz.
- How is the gain adjusted in the MC1496DG? The gain in the MC1496DG is adjustable through external components.
- What is the common mode rejection ratio (CMRR) of the MC1496DG? The CMRR is typically −85 dB.
- What is the operating temperature range for the MC1496 and MC1496B? The MC1496 operates from 0 to +70°C, while the MC1496B operates from −40 to +125°C.
- How many active transistors does the MC1496DG contain? The MC1496DG contains 8 active transistors.
- Is the MC1496DG available in a Pb−Free package? Yes, the MC1496DG is available in a Pb−Free package.
- What is the maximum differential input signal voltage for the MC1496DG? The maximum differential input signal voltage is ±5.0 ±(5+I5Re) Vdc.
- How is carrier null achieved in the MC1496DG? Carrier null is achieved by balancing the currents in the differential amplifier using a bias trim potentiometer.
