DTMF Receiver The LC7385M is a DTMF (Dual-Tone Multi-Frequency) receiver IC manufactured by SANYO. Below are the factual specifications, descriptions, and features from Ic-phoenix technical data files:
### **Specifications:**
- **Manufacturer:** SANYO
- **Type:** DTMF Receiver IC
- **Package:** SOP (Small Outline Package)
- **Operating Voltage:** Typically 2.5V to 5.5V
- **Operating Temperature Range:** -20°C to +70°C
- **Frequency Detection:** Dual-tone multi-frequency (DTMF) signals
- **Output Interface:** Digital (Binary-coded output)
- **Filtering:** Built-in digital band-split filters for tone separation
- **Power Consumption:** Low power consumption design
### **Descriptions:**
- The LC7385M is a CMOS-based DTMF receiver IC designed for decoding telephone keypad tones.
- It processes DTMF signals and converts them into corresponding 4-bit binary codes.
- Suitable for telecommunication devices, remote control systems, and security applications.
- Includes internal gain adjustment and noise rejection circuits for reliable decoding.
### **Features:**
- **DTMF Decoding:** Accurately decodes all 16 DTMF tone pairs.
- **Digital Output:** Provides a 4-bit binary output corresponding to the pressed key.
- **Low Power Operation:** Optimized for battery-powered applications.
- **Built-in Filters:** Reduces interference from non-DTMF signals.
- **Stable Performance:** Includes internal clock oscillator (requires minimal external components).
- **Noise Immunity:** Designed to reject voice and other non-DTMF signals.
This information is based solely on the available technical details for the LC7385M from SANYO.
