〇Product structure : Silicon integrated circuit 〇This product has not designed protection against radioactive rays.
1/51
TSZ02201-0C2C0E300770-1-2
© 2020 ROHM Co., Ltd. All rights reserved.
www.rohm.com
TSZ22111 • 14 • 001
02.Jul.2020 Rev.001
High Sound Quality Audio D/A Converters
32-bit, 768 kHz Sampling
Stereo Audio D/A Converter
BD34301EKV
General Description
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.
Features
MUS-IC
TM
Series
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
Key Specifications
Supply Voltage Range of AVCC
(Note 2)
4.5 V to 5.5 V
Supply Voltage Range of DVDD 1.4 V to 1.6 V
Supply Voltage Range of DVDDIO 3.0 V to 3.6 V
SNR
(Note 1)
130 dB (Typ)
THD+N
(Note 1)
-115 dB (Typ)
Dynamic Range
(Note 1)
130 dB (Typ)
Operation Temperature Range -25 °C to +85 °C
Package
W (Typ) x D (Typ) x H (Max)
HTQFP64BV 12.0 mm x 12.0 mm x 1.0 mm
(Note 1) PCM mode
(Note 2) AVCC, AVCC_R and AVCC_L in Typical Application Circuit
Typical Application Circuit
Lch Out
Single
Lch Out
Differential
LRCLK
BCLK
60
51
52
30
29
IOUT_LP
IOUT_LN
IOUT_RP
IOUT_RN
AVCC
VREF_L
EXT_RES_L
EXT_RES_R
VREF_R
AGND
43
41
40
42
38
39
AVCC
5.0 V
910 Ω
910 Ω
7
DVDD1
DVDD2
DGND2
DVDDIO2
DVDDIO
3.3 V
565548
44～47
AVCC3_L
AVCC2_L
AVCC1_L
AVCC_L
585350
AGND3_L
AGND2_L
AGND1_L
AVCC_L
5.0 V
AVCC_R
AVCC1_R
AVCC2_R
AVCC3_R
AGND1_R
AGND2_R
AGND3_R
0.1 μF
100 μF
100 μF
0.1 μF
5963
61
11
100 μF
0.1 μF
9
0.1 μF
2
DVDD
1.5 V
64
DGND1
100 μF
DGND1
DVDD1
17 15
DGND1
DVDD1
0.1 μF
100 μF
0.1 μF
100 μF
0.1 μF
100 μF
0.1 μF
100 μF
DVDDIO1
0.1 μF
100 μF
0.1 μF
100 μF
0.1 μF
100 μF
0.1 μF
100 μF
0.1 μF
100 μF
252633
34 ～ 37
232831
AVCC_R
5.0 V
0.1 μF
100 μF
0.1 μF
100 μF
0.1 μF
100 μF
0.1 μF
100 μF
DSP
PCM
I/F
Current
Segment
Current
Segment
VREF
Over
Sampling
Digital
FIR
Filter
ΔΣ
Modulator
Master
Clock
BCLK/DSDCLK
LRCLK/DSD2
DIN/DSD1
12
13
14
BCLK
DIN
LRCLK
MCLK
AVCC_L
5.0 V
AVCC_R
5.0 V
TEST1
TEST2
TEST3
TEST4
TEST5
TEST6
TEST7
RESETB
ADDR1, 2
1
3 4 5, 6
SDA
SCL
CPU
2-wire
I/F
System
Control
8 10 16 18 19 20 21
Audio
Function
Control
DSD
I/F
DSDCLK
DSD2
DSD1
DVDDIO
3.3 V
C1
C2
C3
C4
C5
C6
C7
C8
C9
C10
C11
C12
C13
C14
C15
C16
C17
C18
C19
C20
C21
C22
C23
C24
R1
R2
C25
C26
C27
C28
C29
C30
C31
C32
C33
C34
R3
R4
DIN
MCLK
1 kΩ
1500 pF
1500 pF
1 kΩ
1000 pF // 330 pF
390 Ω
390 Ω
1500 pF
1500 pF
390 Ω
R5
R6
R7
R8
R9
R10
R11
R12
C35
C36
C37
C38
C39
Rch Out
Single
Rch Out
Differential
1 kΩ
1500 pF
1500 pF
1 kΩ
390 Ω
390 Ω
1500 pF
1500 pF
390 Ω
R13
R14
R15
R16
R17
R18
R19
C40
C41
C42
C43
C44
2.2 kΩ
2.2 kΩ
560 Ω + 820 Ω
560 Ω + 820 Ω
390 Ω
560 Ω + 820 Ω
560 Ω + 820 Ω
R20
1000 pF // 330 pF
390 Ω
Figure 1. Typical Application Circuit
MUS-IC
TM
is a trademark or a registered trademark of ROHM Co., Ltd.
(Note 3)
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.
Datashee
t
2/51
TSZ02201-0C2C0E300770-1-2
© 2020 ROHM Co., Ltd. All rights reserved.
BD34301EKV
www.rohm.com
TSZ22111 • 15 • 001
02.Jul.2020 Rev.001
Datasheet
Contents
General Description ........................................................................................................................................................................ 1
Features.......................................................................................................................................................................................... 1
Applications .................................................................................................................................................................................... 1
Key Specifications .......................................................................................................................................................................... 1
Package .......................................................................................................................................................................................... 1
Typical Application Circuit ............................................................................................................................................................... 1
MUS-IC
TM
....................................................................................................................................................................................... 3
Pin Configuration ............................................................................................................................................................................ 4
Pin Descriptions .............................................................................................................................................................................. 5
Block Diagram ................................................................................................................................................................................ 7
Absolute Maximum Ratings ............................................................................................................................................................ 8
Thermal Resistance ........................................................................................................................................................................ 8
Recommended Operating Conditions ............................................................................................................................................. 8
Electrical Characteristics................................................................................................................................................................. 9
Measurement Circuit ..................................................................................................................................................................... 11
DC Characteristics ........................................................................................................................................................................ 12
AC Characteristics (MCLK, RESETB) .......................................................................................................................................... 12
AC Characteristics (PCM Mode) ................................................................................................................................................... 13
AC Characteristics (DSD Mode) ................................................................................................................................................... 13
AC Characteristics (2-wire I/F) ...................................................................................................................................................... 14
Typical Performance Curves ................................................................ ......................................................................................... 15
2-wire I/F ................................................................ ................................ ....................................................................................... 16
Register Map ................................................................................................................................................................................ 18
Register Description ..................................................................................................................................................................... 20
System Clock ................................................................................................................................................................................ 35
Power-On Sequence .................................................................................................................................................................... 36
Power-Off Sequence..................................................................................................................................................................... 38
Mode Switching Sequence ........................................................................................................................................................... 39
Recommended Settings................................................................................................................................................................ 41
Sound Settings ............................................................................................................................................................................. 41
Application Examples ................................................................................................................................................................... 42
Operational Notes ................................................................................................ ......................................................................... 47
Ordering Information ..................................................................................................................................................................... 49
Marking Diagrams ......................................................................................................................................................................... 49
Physical Dimension and Packing Information ............................................................................................................................... 50
Revision History ................................................................................................................................ ............................................ 51