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LC72140 from ST,ST Microelectronics

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LC72140

Manufacturer: ST

PLL Frequency Synthesizers

Partnumber Manufacturer Quantity Availability
LC72140 ST 400 In Stock

Description and Introduction

PLL Frequency Synthesizers The LC72140 is a PLL frequency synthesizer IC manufactured by STMicroelectronics. Here are its key specifications, descriptions, and features:

### **Specifications:**
- **Supply Voltage:** 2.7V to 5.5V  
- **Operating Temperature Range:** -40°C to +85°C  
- **Package Type:** SOP (Small Outline Package)  
- **Phase Comparator:** Dual-modulus (Pulse Swallow)  
- **Frequency Range:** Supports RF and IF frequencies for tuning applications  
- **Serial Interface:** I²C-bus compatible  

### **Descriptions:**
- Designed for use in radio tuners and other frequency synthesis applications.  
- Integrates a phase-locked loop (PLL) with a programmable divider for precise frequency control.  
- Suitable for AM/FM radio receivers and other communication systems.  

### **Features:**
- **Low Power Consumption:** Optimized for battery-operated devices.  
- **Built-in Prescaler:** Supports high-frequency input signals.  
- **I²C Control Interface:** Allows easy microcontroller integration.  
- **Lock Detect Function:** Indicates when the PLL is locked to the desired frequency.  
- **Low Phase Noise:** Ensures stable frequency generation.  

For exact pin configurations and application circuits, refer to the official STMicroelectronics datasheet.

Application Scenarios & Design Considerations

PLL Frequency Synthesizers
Partnumber Manufacturer Quantity Availability
LC72140 SANYO 1782 In Stock

Description and Introduction

PLL Frequency Synthesizers The LC72140 is a PLL frequency synthesizer IC manufactured by SANYO.  

### **Specifications:**  
- **Supply Voltage (VDD):** 2.7V to 5.5V  
- **Operating Temperature Range:** -20°C to +75°C  
- **Package Type:** SOP (Small Outline Package)  
- **Frequency Range:** Supports VHF and UHF bands  
- **Serial Data Interface:** 3-wire (CLK, DATA, CE)  
- **Low Power Consumption:** Suitable for battery-operated devices  

### **Descriptions and Features:**  
- Designed for radio frequency (RF) applications, including tuners and receivers.  
- Integrates a phase-locked loop (PLL) for stable frequency synthesis.  
- Includes a built-in prescaler for high-frequency division.  
- Compatible with microcontrollers via serial interface.  
- Supports programmable reference frequency dividers.  
- Low phase noise for improved signal clarity.  

This IC is commonly used in car audio systems, portable radios, and communication devices requiring precise frequency control.  

(Note: Always refer to the official datasheet for detailed electrical characteristics and application circuits.)

Application Scenarios & Design Considerations

PLL Frequency Synthesizers
Partnumber Manufacturer Quantity Availability
LC72140 142 In Stock

Description and Introduction

PLL Frequency Synthesizers The LC72140 is a PLL frequency synthesizer IC manufactured by ON Semiconductor (formerly SANYO).  

### **Key Features:**  
- **Frequency Range:** Supports VHF and UHF bands.  
- **Built-in Prescaler:** Includes a 1/2 or 1/4 dual-modulus prescaler.  
- **Serial Data Input:** Uses a 3-wire serial interface (CLK, DATA, CE).  
- **Phase Comparator:** Features a digital phase comparator with a charge pump output.  
- **Low Power Consumption:** Designed for battery-operated devices.  
- **Package Type:** Available in SOP (Small Outline Package) or other surface-mount options.  

### **Applications:**  
- Used in radio tuners, communication systems, and other RF applications requiring frequency synthesis.  

### **Manufacturer Specifications:**  
- **Supply Voltage:** Typically operates at 2.7V to 5.5V.  
- **Operating Temperature Range:** Usually -20°C to +70°C (commercial grade).  

For exact electrical characteristics and pin configurations, refer to the official datasheet from ON Semiconductor.

Application Scenarios & Design Considerations

PLL Frequency Synthesizers

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