SI4831BDY-T1-E3

Product Overview

Category:

The SI4831BDY-T1-E3 belongs to the category of integrated circuits (ICs) and specifically falls under the category of radio frequency (RF) receivers.

Use:

This product is primarily used as a digital CMOS AM/FM receiver IC, designed for portable consumer electronics applications such as smartphones, tablets, and portable media players.

Characteristics:

• The SI4831BDY-T1-E3 features low power consumption, high sensitivity, and excellent selectivity.
• It is designed to operate in the frequency range of 64–108 MHz for FM reception and 520–1710 kHz for AM reception.
• This IC integrates all necessary RF, mixed-signal, and digital signal processing functions, reducing external component count and board space requirements.

Package:

The SI4831BDY-T1-E3 is available in a compact 20-pin SSOP package, making it suitable for space-constrained designs.

Packaging/Quantity:

The product is typically supplied in tape and reel packaging, with quantities varying based on customer requirements.

Specifications

• Supply Voltage: 2.7V to 5.5V
• Operating Temperature Range: -20°C to 85°C
• Total Harmonic Distortion (THD): <2% (typical)
• Signal-to-Noise Ratio (SNR): >60 dB (typical)

Detailed Pin Configuration

The detailed pin configuration of the SI4831BDY-T1-E3 is as follows:

| Pin Number | Pin Name | Function | |------------|--------------|---------------------------| | 1 | GND | Ground | | 2 | RFGND | RF Ground | | 3 | ANT | Antenna Input | | 4 | LOUT | Left Audio Output | | 5 | ROUT | Right Audio Output | | 6 | VDDA | Analog Power Supply | | 7 | NC | No Connect | | 8 | SCLK | Serial Clock Input | | 9 | SDIO | Serial Data Input/Output | | 10 | SEN | Serial Enable | | 11 | GPO2 | General Purpose Output 2 | | 12 | GPO1 | General Purpose Output 1 | | 13 | GPIO2 | General Purpose Input 2 | | 14 | GPIO1 | General Purpose Input 1 | | 15 | RESETB | Reset Input | | 16 | XTI | Crystal Input | | 17 | XTO | Crystal Output | | 18 | AGC | Automatic Gain Control | | 19 | VDDD | Digital Power Supply | | 20 | VDD | Power Supply |

Functional Features

The SI4831BDY-T1-E3 offers the following functional features: - Digital low-IF AM/FM receiver - Integrated frequency synthesizer - Automatic gain control (AGC) - Digital audio interface - Selectable de-emphasis (50/75 μs) - Seek tuning and automatic frequency control (AFC)

Advantages and Disadvantages

Advantages

• Low power consumption
• High sensitivity and selectivity
• Integration of RF, mixed-signal, and digital signal processing functions
• Compact package size

Disadvantages

• Limited frequency range compared to some other RF receivers
• Sensitivity to electromagnetic interference in certain environments

Working Principles

The SI4831BDY-T1-E3 operates by receiving RF signals through the antenna input, which are then processed using the integrated frequency synthesizer and digital signal processing functions. The AGC ensures consistent signal strength, while the digital audio interface provides the demodulated audio output.

Detailed Application Field Plans

The SI4831BDY-T1-E3 is well-suited for various portable consumer electronics applications, including: - Smartphones - Tablets - Portable media players - Portable radios

Detailed and Complete Alternative Models

Some alternative models to the SI4831BDY-T1-E3 include: - SI4830BDY-T1-E3 - SI4832BDY-T1-E3 - SI4840DY-T1-E3 - SI4842DY-T1-E3

In conclusion, the SI4831BDY-T1-E3 is a versatile and efficient digital CMOS AM/FM receiver IC, offering high performance and integration for portable consumer electronics applications.

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