Datasheet > BD34301EKV

BD34301EKV

更新时间： 2024-11-24 11:14:07

品牌	Logo	应用领域
罗姆 - ROHM		PC 转换器
页数	文件大小	规格书
54页	2446K
描述
BD34301EKV是一款融入ROHM自有音质设计技术的32位立体声D/A转换器。实现了适用于高端音响的出色数值性能[SNR： 130dB(Typ), THD+N： -115dB(Typ)]。可通过切换两种FIR数字滤波器（Sharp Roll-Off, Slow Roll-Off）来选择喜欢的音质。配备PCM I/F和DSD I/F，最高采样频率分别支持768kHz和22.4MHz。竭力追求音频产品所需的数值性能和音质性能提升，并将ROHM工程师们的热情诉诸ROHM音频IC，打造出高端品牌。ROHM Musical Device“MUS-IC"“MUS-IC"特设页面

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BD34301EKV 数据手册

Datasheet

High Sound Quality Audio D/A Converters

32-bit, 768 kHz Sampling

Stereo Audio D/A Converter

BD34301EKV

General Description

Key Specifications

BD34301EKV is 32-bit high sound quality Stereo Audio

D/A converter with ROHM original sound quality design,

realizing excellent numerical performance (SNR: 130 dB

(Typ), THD+N: -115 dB (Typ)) suitable for high-end audio.

Favourite sound is selectable by switching 2 kinds of

digital FIR filters (Sharp Roll-Off, Slow Roll-Off). PCM I/F

supports up to 768 kHz and DSD I/F supports up to 22.4

MHz.



Supply Voltage Range of AVCC^{(Note 2)}4.5 V to 5.5 V

Supply Voltage Range of DVDD

Supply Voltage Range of DVDDIO

SNR^{(Note 1)}

1.4 V to 1.6 V

3.0 V to 3.6 V

130 dB (Typ)

-115 dB (Typ)

130 dB (Typ)

THD+N^{(Note 1)}

Dynamic Range^{(Note 1)}

Operation Temperature Range

-25 °C to +85 °C

Package

HTQFP64BV

Features

W (Typ) x D (Typ) x H (Max)

12.0 mm x 12.0 mm x 1.0 mm



MUS-IC^TMSeries

SNR 130 dB (Typ), THD+N -115 dB (Typ) ^{(Note 1)}

Sampling Frequency 32 kHz to 768 kHz^{(Note 1)}

2 Kinds of Digital FIR Filters ^{(Note 1)}

DSD 2.8 MHz, 5.6 MHz, 11.2 MHz, 22.4 MHz

Available



Supports Stereo Mode (2ch) and Mono Mode (1ch)

Selectable 4 Device Addresses (38h, 3Ah, 3Ch, 3Eh)

Applications



CD/SACD Player

Digital Audio Player (DAP)

USB-DAC and Others

(Note 1) PCM mode

(Note 2) AVCC, AVCC_R and AVCC_L in Typical Application Circuit

Typical Application Circuit

AVCC_L

5.0 V

DVDDIO

3.3 V

DVDD

1.5 V

100 μF

0.1 μF

100 μF 100 μF

0.1 μF 0.1 μF

100 μF

0.1 μF

100 μF

0.1 μF

100 μF

0.1 μF

100 μF

C35

C15

C17

C16

C18

C19

C20

C11

C12

C13

C14

1500 pF

C10

0.1 μF 0.1 μF

R11

390 Ω

44～47

1 kΩ

560 Ω + 820 Ω

C38

1500 pF

Lch Out

Single

C36

1500 pF

IOUT_LP

IOUT_LN

C37

BCLK/DSDCLK

BCLK

Current

Segment

R10

R12

1 kΩ

C39

1500 pF

AVCC

5.0 V

Over

560 Ω + 820 Ω

C21

LRCLK/DSD2

LRCLK

Lch Out

Differential

Sampling

Digital

FIR

PCM

100 μF

C22

ΔΣ

Modulator

DSP

AVCC 42

I/F

0.1 μF

AVCC_L

5.0 V

100 μF

C23

Audio

Function

Control

DIN/DSD1

DIN

Filter

0.1 μF

VREF_L

C24

EXT_RES_L

(Note 3)

MCLK

The written values of external parts

are checked by sound test. Changing

these values can affect the sound

quality. Please check the sound

when the values are changed.

VREF

910 Ω

EXT_RES_R

910 Ω

AVCC_R

5.0 V

VREF_R

DSD

I/F

C25

C26

0.1 μF

100 μF

C40

1500 pF

AGND

R13

R15

560 Ω + 820 Ω

R19

390 Ω

IOUT_RP

IOUT_RN

1 kΩ

Current

MCLK

2-wire

System

Control

R17

Master

Clock

C43

1500 pF

Rch Out

Single

Segment

I/F

C41

1500 pF

C42

R14

R18

1 kΩ

R16

C44

1500 pF

5, 6

0.1 μF

34 ～ 37

560 Ω + 820 Ω

R20

0.1 μF 0.1 μF

2.2 kΩ

C33

C34

C31

C32

C29

C30

C27

C28

Rch Out

Differential

DVDDIO

3.3 V

2.2 kΩ

100 μF

CPU

AVCC_R

5.0 V

Figure 1. Typical Application Circuit

MUS-IC^TMis a trademark or a registered trademark of ROHM Co., Ltd.

〇Product structure : Silicon integrated circuit 〇This product has not designed protection against radioactive rays.

www.rohm.com

TSZ22111 • 14 • 001

TSZ02201-0C2C0E300770-1-2

02.Jul.2020 Rev.001

1/51

12 3 4 5 6 7...54

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