| Parameters | 
                                                                                                            
                                            | Factory Lead Time | 12 Weeks | 
                                                                            
                                            | Mount | Surface Mount | 
                                                                            
                                            | Mounting Type | Surface Mount | 
                                                                            
                                            | Package / Case | 28-WFQFN Exposed Pad | 
                                                                            
                                            | Supplier Device Package | 28-QFN (5x5) | 
                                                                            
                                            | Operating Temperature | -40°C~105°C | 
                                                                            
                                            | Packaging | Tape & Reel (TR) | 
                                                                            
                                            | Published | 2015 | 
                                                                            
                                            | Part Status | Active | 
                                                                            
                                            | Moisture Sensitivity Level (MSL) | 2 (1 Year) | 
                                                                            
                                            | Type | Audio | 
                                                                            
                                            | Max Operating Temperature | 105°C | 
                                                                            
                                            | Min Operating Temperature | -40°C | 
                                                                            
                                            | Interface | I2C, I2S | 
                                                                            
                                            | Max Supply Voltage | 3.6V | 
                                                                            
                                            | Min Supply Voltage | 1.7V | 
                                                                            
                                            | Data Interface | Serial | 
                                                                            
                                            | Voltage - Supply, Analog | 2.4V~3.6V | 
                                                                            
                                            | Voltage - Supply, Digital | 1.8V~3.6V | 
                                                                            
                                            | Number of A/D Converters | 1 | 
                                                                            
                                            | Number of D/A Converters | 1 | 
                                                                            
                                            | Resolution (Bits) | 32 b | 
                                                                            
                                            | Ambient Temperature Range High | 105°C | 
                                                                            
                                            | Number of Analog Inputs | 2 | 
                                                                            
                                            | Sigma Delta | Yes | 
                                                                            
                                            | Number of ADCs / DACs | 2 / 2 | 
                                                                            
                                            | Dynamic Range, ADCs / DACs (db) Typ | 108 / 108 | 
                                                                            
                                            | S/N Ratio, ADCs / DACs (db) Typ | 92 / 100 | 
                                                                            
                                            | Number of Analog Outputs | 2 | 
                                                                            
                                            | Height | 750μm | 
                                                                            
                                            | RoHS Status | ROHS3 Compliant | 
                                                                                                    
                            
                         
                                                AK4558EN Overview
For space-saving reasons, it is supplied in a 28-WFQFN Exposed Pad package. This package uses the Tape & Reel (TR) packaging method. This electronic part is categorized as a type of Audio, making it capable of providing high-efficiency performance in a variety of applications. This device employs the mounting type Surface Mount. When the operating performance is set to -40°C~105°C, the system can operate normally. It features 2 / 2 ADCs / DACs. In the analog circuit, the supply voltage is 2.4V~3.6V. Digital circuits are powered by 1.8V~3.6V supply voltages. On a PCB based on Surface Mount technology, it is mounted. Supply voltage should be maintained at 3.6V. In order to convert analog signals into digital signals, 1 A/D converters are used. A minimum supply voltage of 1.7V should be maintained. For converting digital signals into analog signals, there are 1 D/A converters. It is set with a maximum value of 105°C to maintain normal operation. Temperatures above -40°C are set as the minimum to prevent malfunctions. It features 2 analog inputs. The device has 2 analog outputs. 
AK4558EN Features
Embedded in the 28-WFQFN Exposed Pad package
Operating temperature of -40°C~105°C
2 / 2 ADCs / DACs
1 A/D converters
2 analog inputs
2 analog outputs
AK4558EN Applications
There are a lot of AKM Semiconductor Inc. AK4558EN CODECs Interface ICs applications. 
- Spooling or level wind
- Filling
- Backstop gauging
- Half adders
- CPU memory location identification
- Pulp & paper mills
- Robotic arms
- Analog to digital conversion in the analog decoder
- Elevators
- Material handling