BU94603KV-E2 ROHM Semiconductor, BU94603KV-E2 Datasheet - Page 12

• Manufacturer Part Number: BU94603KV-E2
• Description: Interface - CODECs USB HOST MP3 DECODER
• Manufacturer: ROHM Semiconductor
• Type: USB Audio Decoderr

Specifications of BU94603KV-E2

• Rohs: yes
• Conversion Rate: 48 kSPs
• Interface Type: I2C
• Number Of Dacs: 3
• Operating Supply Voltage: 3 V to 3.6 V
• Maximum Operating Temperature: + 85 C
• Mounting Style: SMD/SMT
• Package / Case: VQFP-64
• Minimum Operating Temperature: - 40 C
• Snr: 96 dB
• Supply Current: 65 mA
• Thd Plus Noise: 0.02 %

© 2012 ROHM Co., Ltd. All rights reserved.
BU94603KV
www.rohm.com
Pin No.
44
46
53
54
55
VI.4 SEL_DOUT
VI.5 SEL_VOL
Signal name I/O
Signal name I/O
SEL_DOUT
LED_RANDOM
SEL_VOL
LED_ACCESS
LED_REPEAT
Line Out Rch
Line Out Lch
Audio output selection signal
This SEL_DOUT selects audio output signal.
Table VI.4.1 “Audio output” shows the audio outputs for each MODE.
Also table VI.4.2 ”I
For command, see Chapter VII.
"TEST terminal" needs to be pull-up to 3.3V power supply.
SEL_DOUT is set only at power ON. Note that change of selection after power ON is ignored.
Sound volume operation selection signal
SEL_VOL selects whether sound volume operation is to be enabled or disabled.
Sound volume operation is enabled when SEL_VOL=H.
Initial value of audio output is -24.1dB at power ON.
Sound volume operation is disabled when SEL_VOL=L. Audio output is fixed to 0dB.
Figure VI.5 shows the relationship between audio output and sound volume step.
SEL_VOL is set only at power ON. Note that change of selection after power ON is ignored.
function
SEL_DOUT=H
I/O PU
O OFF
O OFF
O OFF I2S LR CLOCK
O OFF I2S BIT CLOCK O OFF TEST terminal
O OFF
I
I
MODE1
Audio output selection
Sound volume operation
MODE1
MODE2/3
-10
-20
-30
-40
-50
-60
2
0
S_fs” shows the I
 -
I2S LRDATA
0
function
SEL_DOUT=L
HiZ
HiZ
2
Initial value: -24.1 dB
(when SEL_VOL=H)
4
Function
Function
6
Figure VI.5 Volume Step Function
I/O PU
O OFF Line Out Rch
O OFF Line Out Lch
O OFF TEST terminal
O OFF TEST terminal
32fs
Can select 32fs, 48fs, 64fs by command.
8
2
S output formats for each MODE.
TableVI.4.1 Audio output
10
Volume step
Table VI.4.2 I
12
function
SEL_DOUT=H
14
12/60
16
H: Line output, L: Digital output(I
H: Sound volume operation enabled, L: Sound volume
operation disabled
18
I/O PU
2
O OFF
O OFF
I
I
I
S_fs
20
ON I2S LR CLOCK
ON I2S BIT CLOCK
ON
22
24
I2S LRDATA
function
26
HiZ
HiZ
MODE2,3
28
I2S
Remarks
Remarks
30
I/O PU
32
O OFF
O OFF
O OFF
O OFF TEST terminal
O OFF TEST terminal
SEL_DOUT=L
2
S, SPDIF)
*PU・・・Pull-Up
function
SPDIF
HiZ
HiZ
SPDIF ON
Technical Note
2012.07 - Rev.B
I/O PU
O OFF
O OFF
O OFF
I OFF
I OFF