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TBA129 from SIEMENS

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TBA129

Manufacturer: SIEMENS

FM IF AMPLIFIER WITH DEMODULATOR

Partnumber Manufacturer Quantity Availability
TBA129 SIEMENS 521 In Stock

Description and Introduction

FM IF AMPLIFIER WITH DEMODULATOR Here are the factual details about the **TBA129** manufacturer specifications, descriptions, and features based on available information:  

### **Manufacturer Specifications:**  
- **Manufacturer:** Philips/NXP Semiconductors (historical component, now obsolete)  
- **Type:** Monolithic integrated circuit (IC)  
- **Function:** Audio preamplifier  
- **Package:** Typically in a **DIP (Dual In-line Package)** format  
- **Operating Voltage:** Typically **9V to 18V DC**  
- **Gain:** Adjustable, designed for low-noise amplification in audio applications  

### **Descriptions:**  
- The **TBA129** is an older-generation IC primarily used in **audio preamplifier circuits**, such as in tape recorders, amplifiers, and other consumer audio equipment.  
- It was designed for **low-noise signal amplification** with adjustable gain control.  
- Due to its age, it is now considered obsolete and may be difficult to source.  

### **Features:**  
- **Low noise amplification** for high-quality audio signals.  
- **Adjustable gain** via external resistors.  
- **Wide operating voltage range** (9V–18V).  
- **Designed for tape recorder and audio preamp applications.**  

For exact datasheet details, refer to historical Philips/NXP documentation.

Application Scenarios & Design Considerations

FM IF AMPLIFIER WITH DEMODULATOR

Alternative Part Number

  • LM3900N --: Quad current-difference amplifier in DIP-14, functionally similar to the TBA129 and widely available.
  • MC3401P --: Quad current-mode operational amplifier with comparable input/output characteristics, suitable replacement in DIP package.
  • CA3096AE --: Transistor array/amplifier building block that can substitute in many TBA129 circuit applications with minor biasing changes.
  • LM741CN --: General-purpose operational amplifier in a DIP-8 package, widely available and functionally similar to the TBA129 op-amp for basic analog circuits.
  • uA741CP --: Classic 741 op-amp with comparable electrical characteristics and pinout, a common drop-in substitute for older TBA-series amplifiers.
  • MC1458P --: Dual general-purpose op-amp offering similar performance and supply range, suitable when a dual device can replace the original single amplifier.

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