BU7839GVW_10 Datasheet, PDF (5/16 Pages) Rohm – Digital Input Class-D Headphone Amplifier

BU7839GVW
Technical Note
●Terminal table
No
Terminal
name
Function
A1 MCLK Audio I/F Master clock
B3 BCLK Audio I/F Bit clock
A2 LRCLK Audio I/F LR clock
C2 SDI Audio I/F Serial data
C1 DVDDIO Digital IO VDD
B4 SCL 2wire CPU I/F serial clock
A5 SDA 2wire CPU I/F serial data
B2 NRST Reset
A3 ADR Device address select
C3 TEST test pin
D1 DVDD Digital core VDD
A4 DVSS Digital core VSS
B5 REFCLK reference clock
D5 PLLVDD PLL VDD
C5 PLLCAP PLL capacitor
C4 DVSS PLL, Digital VSS
D4 VDD_R Analog VDD
E4 OUT_R Rch output
E5 MUTE_R Rch mute
D3 VSS_R Analog VSS
E1 VDD_L Analog VDD
E2 OUT_L Lch output
D2 MUTE_L Lch mute
E3 VSS_L Analog VSS
Classifi Digital/
cation Analog
A
D
B
D
B
D
E
D
-
D
C
D
D
D
E
D
E
D
E
D
-
D
-
D
H
D
-
A
F
A
-
D
-
A
G
A
I
A
-
A
-
A
G
A
I
A
-
A
In/Out
In/Out
Rest middle/
rear Initial
value
in
256fs
Note
In/Out
in
64fs
In/Out
in
fs
In
-
-
-
I/O power supply
In
-
In/Out
in
In
-
L: reset
In
-
L:33h or H:36h
In
-
Please connect to the ground
-
-
Digital power supply
-
-
Digital ground ﾞ
In
Input 10M～20MHz
-
-
PLL power supply
Out
Hiz
-
-
PLL, Digital ground ﾞ
-
-
Rch power supply
Out
Hiz
Out
Hiz
For starting sound decrease
-
-
Rch ground
-
-
Lch power supply
Out
Hiz
Out
Hiz
For starting sound decrease
-
-
Lch ground
●Terminal equivalent circuit figure
DVDDIO
A
LVS
DVSSIO
DVDDIO
B
LVS
DVSSIO
LVS
C
DVSSIO
LVS
DVDDIO
D
E
LVS
F
DVSSIO
DVSSIO
VDD_R VDD_R
VDD_L VDD_L
G
VSS_R VSS_R
VSS_L VSS_L
DVDDIO
H
LVS
I
DVSSIO
PLLVDD
PLLVSS
VDD_R
VDD_L
VSS_R VSS_R
VSS_L VSS_L
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2010.05 - Rev.A