Build with AK4452 — Datasheet Specs & AI Design Help

00 — Overview

What the AK4452 does

The AK4452 is a 32-bit 2-channel premium digital-to-analog converter designed for high-resolution audio playback. It supports PCM inputs up to 768kHz and DSD inputs up to 11.2MHz, featuring 115dB dynamic range, -107dB THD+N, and 256x oversampling. This component includes five selectable 32-bit digital filters and a digital attenuator with 255 levels. Typically used in AV receivers, network audios, USB DACs, and car audio systems, the AK4452 delivers low distortion and low out-of-band noise while maintaining low power consumption in a 32-pin QFN package.

Next step

Start building with AK4452 → Every number above is cited straight from the datasheet — ask what they mean for your design, and the assistant answers from the same source documents.

01 — Key specifications

Datasheet parameters

Datasheet parameters for AK4452
Parameter	Min	Typ	Max	Conditions	Source
quiescent current	—	8 mA	11 mA	TVDD (fs = 44.1kHz); Power Supply Current	Asahi Kasei Microdevices datasheet, p. 11 — (1) AVDD = 5.0V
output voltage	2.65 V	2.8 V	2.95 V	(note 13); DC Accuracy	Asahi Kasei Microdevices datasheet, p. 11 — (1) AVDD = 5.0V
supply voltage range	-300 mV	—	—	☑ Handling of Unused Pin	Asahi Kasei Microdevices datasheet, p. 10 — ☑ Handling of Unused Pin
operating temperature	-40 °C	—	105 °C	Ambient Temperature (Power applied)	Asahi Kasei Microdevices datasheet, p. 10 — ☑ Handling of Unused Pin
clock frequency	2.05 MHz	—	49.2 MHz	Master Clock Timing	Asahi Kasei Microdevices datasheet, p. 22 — ☑ Switching Characteristics
output voltage low	—	—	500 mV	Low-Level Output Voltage(except SDA pin : Iout = 100μA); vol; TVDD = 3.0V ~ 3.6V	Asahi Kasei Microdevices datasheet, p. 21 — ■ DC Characteristics
load capacitance	—	—	30 pF	(note 14); DC Accuracy	Asahi Kasei Microdevices datasheet, p. 11 — (1) AVDD = 5.0V
sample rate	8 kHz	—	768 kHz		Asahi Kasei Microdevices datasheet, p. 1
dynamic range	110 dB	115 dB	—	(note 10); Dynamic Characteristics (Note 9)	Asahi Kasei Microdevices datasheet, p. 11 — (1) AVDD = 5.0V
channel count	—	2	—		Asahi Kasei Microdevices datasheet, p. 1

02 — Alternatives

Closest matches to AK4452

PCM5100A 15.0× lower fall time, 3.0× lower load capacitance, 2.0× lower sample rate

ES8388 7.5× lower sample rate, 3.3× lower rise time, 2.6× lower clock frequency

CS4344 3.8× lower sample rate, 3.3× higher load capacitance, 2.8× higher quiescent current

ES8311 7.5× lower sample rate, 3.3× lower rise time, 1.3× lower adc resolution

CJC4344H 3.4× lower sample rate, 3.3× higher load capacitance, 1.4× lower operating temperature

GP8403 4.0× lower quiescent current, 2.7× lower adc resolution, 1.4× lower operating temperature

MCP4901 4.0× lower adc resolution, 1.3× higher operating temperature, 1.3× lower clock frequency

AD5694ARUZ 6.7× lower rise time, 2.7× lower adc resolution, 1.2× lower output voltage low

03 — FAQ

Frequently asked questions

What is the channel count of the AK4452?

The channel count is 2.

What is the maximum clock frequency under Master Clock Timing conditions?

The maximum clock frequency is 49.2 MHz.

What is the dynamic range of the AK4452 under the conditions specified in Note 10 and Dynamic Characteristics (Note 9)?

The dynamic range is 115 dB.

What is the load capacitance for DC Accuracy?

The load capacitance is 30 pF (note 14).

What is the maximum operating temperature of the AK4452?

The maximum operating temperature is 105 °C at Ambient Temperature (Power applied).

What is the output voltage under DC Accuracy (note 13)?

The output voltage is 2.8 V.

What is the Low-Level Output Voltage (except SDA pin) when Iout = 100μA and TVDD = 3.0V ~ 3.6V?

The output voltage low is 500 mV.

What is the quiescent current when TVDD is powered at fs = 44.1kHz?

The quiescent current is 8 mA.

What is the maximum sample rate for the AK4452?

The maximum sample rate is 768 kHz.

What is the supply voltage range for the AK4452 when handling unused pins?

The supply voltage range is -300 mV when handling unused pins.