Overview
The Motorola MC1496 is a balanced modulator/demodulator integrated circuit designed for applications where the output voltage is a product of an input voltage (signal) and a switching function (carrier). This device is particularly useful in various modulation and detection schemes, including suppressed carrier and amplitude modulation, synchronous detection, FM detection, phase detection, and chopper applications.
Key Specifications
| Characteristic | Min | Typ | Max | Unit |
|---|---|---|---|---|
| Carrier Suppression (fs = 10 kHz, 300 mV(rms)) | - | 65 dB @ 0.5 MHz, 50 dB @ 10 MHz | - | dB |
| Carrier Feedthrough (VC = 60 mV(rms) sine wave, fc = 1.0 kHz) | - | 0.4 mV(rms) | - | mV(rms) |
| Transadmittance Bandwidth (Magnitude) (RL = 50 ohms) | - | 10 MHz | - | MHz |
| Differential Output Voltage Swing Capability | - | 5.0 Vp-p | - | Vp-p |
| Power Supply Current | - | 7 mA | - | mAdc |
| DC Power Dissipation | - | 7 mW | - | mW |
| Operating Temperature Range | 0°C | - | 70°C | °C |
| Storage Temperature Range | -65°C | - | 150°C | °C |
Key Features
- Adjustable Gain and Signal Handling: The MC1496 allows for adjustable gain and signal handling, making it versatile for various applications.
- Balanced Inputs and Outputs: The device features balanced inputs and outputs, which enhance its performance in differential signal processing.
- High Common Mode Rejection: It offers high common mode rejection of up to 85 dB, ensuring minimal interference from common mode signals.
- Excellent Carrier Suppression: The MC1496 provides excellent carrier suppression, with typical values of 65 dB at 0.5 MHz and 50 dB at 10 MHz.
Applications
- Suppressed Carrier and Amplitude Modulation: The MC1496 is used in suppressed carrier and amplitude modulation applications due to its excellent carrier suppression capabilities.
- Synchronous Detection: It is suitable for synchronous detection, where the device can extract the original signal from a modulated carrier.
- FM Detection: The device can be used to detect frequency-modulated signals by converting the frequency variations into amplitude variations.
- Phase Detection: The MC1496 functions as a phase detector, producing an output that is a function of the phase difference between two input signals.
- Product Detector: It can be used as a product detector in single-sideband (SSB) systems, with a sensitivity of 3.0 microvolts and a dynamic range of 90 dB.
- Doubly Balanced Mixer: The device can operate as a doubly balanced mixer with either broadband or tuned narrow-band input and output networks.
Q & A
- What is the primary function of the MC1496?
The MC1496 is a balanced modulator/demodulator designed for applications where the output voltage is a product of an input voltage (signal) and a switching function (carrier).
- What are the typical applications of the MC1496?
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 MC1496?
The MC1496 provides carrier suppression of 65 dB at 0.5 MHz and 50 dB at 10 MHz.
- How does the MC1496 handle common mode signals?
The device offers high common mode rejection of up to 85 dB.
- Can the MC1496 be used as a product detector?
Yes, the MC1496 can be used as a product detector in SSB systems with a sensitivity of 3.0 microvolts and a dynamic range of 90 dB.
- What is the operating temperature range of the MC1496?
The operating temperature range is from 0°C to 70°C.
- How is the gain and signal handling adjusted in the MC1496?
The gain and signal handling can be adjusted through external components and bias settings.
- Can the MC1496 be used as a doubly balanced mixer?
Yes, the device can operate as a doubly balanced mixer with either broadband or tuned narrow-band input and output networks.
- What is the recommended carrier input level for optimal carrier suppression?
A 60 mV(rms) sine wave carrier input signal is recommended for optimal carrier suppression.
- How does the MC1496 perform in FM detection applications?
The device can detect frequency-modulated signals by converting the frequency variations into amplitude variations.
