AKD5354(2001) Ver la hoja de datos (PDF) - Asahi Kasei Microdevices

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AKD5354
(Rev.:2001)

Low Power 20bit ∆Σ ADC with PGA

Asahi Kasei Microdevices 

ASAHI KASEI

[AK5354]

AK5354

Low Power 20bit ∆Σ ADC with PGA

FEATURES

The AK5354 is a low voltage 20bit A/D converter for digital audio system. The AK5354 also includes

Analog input PGA, therefore is suitable for microphone application and etc. As digital power supply of the

AK5354 corresponds to 1.8V, the interface with microprocessor can operate at low voltage. Analog

signal input of the AK5354 is single-ended, therefore, any external filters are not required. As the

package is 16pin TSSOP, the AK5354 is a suitable for minimizing system.

FEATURES

1. Resolution : 20bits

2. Recording Functions

• 2-Stereo Inputs Selector

• Analog Input PGA

• Monaural Mixing

• Digital HPF for DC-offset cancellation (fc=3.4Hz@fs=44.1kHz)

3. ADC Characteristics

• Input Level : 1.5Vpp@VA=2.5V (= 0.6 x VA)

• S/(N+D) : 84dB

• DR, S/N : 89dB

4. 3-wire Serial Control I/F

5. Master Clock : 256fs/384fs

6. Audio Data Format : MSB First, 2’s compliment

• 20bit MSB justified or I2S

8. Power Supply

• VA : 2.1 ∼ 3.3V (typ. 2.5V)

• VD : 1.8 ∼ 3.3V (typ. 2.5V)

9. Power Supply Current

• IPGA + ADC : 7mA

10. Ta = -40 ∼ 85°C

11. Package : 16pin TSSOP

LIN1

LIN2

RIN1

RIN2

VCOM

VA

VSS

MS0054-E-01

IPGA

ADC

HPF

Audio I/F

Controller

Control Register I/F

Clock Divider

LRCK

BCLK

SDTO

VD

PDN

CSN CCLK CDTI

MCLK

2001/01

-1-

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