PGA2505IDBR

Product Overview

Category: Integrated Circuit (IC)

Use: Audio Amplifier

Characteristics: - Low noise and distortion - High gain accuracy - Wide bandwidth - Programmable gain settings - Differential inputs - Single-ended or differential outputs

Package: SSOP-16

Essence: The PGA2505IDBR is a high-performance audio amplifier IC designed for professional audio applications. It offers precise gain control, low noise, and low distortion, making it suitable for various audio amplification needs.

Packaging/Quantity: The PGA2505IDBR is available in a SSOP-16 package. It is typically sold in reels of 2500 units.

Specifications

• Supply Voltage Range: ±4.5V to ±18V
• Gain Settings: Programmable from -6dB to +30dB in 0.1dB steps
• Input Impedance: 20 kΩ
• Output Impedance: 100 Ω
• Bandwidth: 10 Hz to 50 kHz
• Total Harmonic Distortion (THD): <0.01% at 1 kHz, 2 Vrms output
• Signal-to-Noise Ratio (SNR): >110 dB
• Operating Temperature Range: -40°C to +85°C

Pin Configuration

The PGA2505IDBR has 16 pins arranged as follows:

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| | | 1 2 3 4 5 | |___________________| | | | 6 7 8 9 10 | |___________________| | | | 11 12 13 14 15 16 | |___________________| ```

Pin Description: 1. V- (Negative Power Supply) 2. IN1- (Negative Input 1) 3. IN1+ (Positive Input 1) 4. GND (Ground) 5. OUT1- (Negative Output 1) 6. OUT1+ (Positive Output 1) 7. VREF (Reference Voltage) 8. AGND (Analog Ground) 9. V+ (Positive Power Supply) 10. IN2- (Negative Input 2) 11. IN2+ (Positive Input 2) 12. OUT2- (Negative Output 2) 13. OUT2+ (Positive Output 2) 14. NC (No Connection) 15. MUTE (Mute Control) 16. SD (Shutdown Control)

Functional Features

1. Programmable Gain: The PGA2505IDBR allows precise gain control with programmable settings, enabling flexibility in audio amplification applications.
2. Low Noise and Distortion: With low noise and distortion characteristics, the PGA2505IDBR ensures high-quality audio reproduction.
3. Wide Bandwidth: The IC offers a wide bandwidth of 10 Hz to 50 kHz, allowing accurate amplification across a broad range of frequencies.
4. Differential Inputs and Outputs: The differential inputs and outputs provide improved common-mode rejection and noise rejection, enhancing audio signal integrity.
5. Mute and Shutdown Control: The MUTE and SD pins allow for convenient muting and shutdown of the amplifier when needed.

Advantages and Disadvantages

Advantages: - Precise gain control - Low noise and distortion - Wide bandwidth - Differential inputs and outputs - Programmable settings

Disadvantages: - Limited availability in smaller package options - Relatively higher cost compared to some alternatives

Working Principles

The PGA2505IDBR operates as a voltage-controlled amplifier (VCA). It amplifies the input audio signal based on the gain setting programmed through external control. The differential inputs provide balanced signal handling, while the differential outputs offer improved noise rejection and common-mode rejection.

The IC utilizes internal circuitry to maintain accurate gain control, low distortion, and low noise levels. It operates within a specified supply voltage range and provides high-quality audio amplification for professional audio applications.

Application Field Plans

The PGA2505IDBR is commonly used in various audio-related applications, including: - Professional audio equipment - Audio mixers - Audio recording systems - Public address (PA) systems - Musical instruments amplifiers

Its precise gain control, low noise, and wide bandwidth make it suitable for demanding audio amplification needs in both studio and live sound environments.

Alternative Models

1. PGA2500IDBR: Similar to PGA2505IDBR but with fixed gain settings.
2. INA217AIDW: Instrumentation amplifier with programmable gain and low noise characteristics.
3. LM833N: Dual operational amplifier with wide bandwidth and low distortion.

These alternative models offer similar functionalities and