BU7839GVW Datasheet, PDF (5/16 Pages) Rohm – Digital Input Hi-Fi Class-D Headphone Amplifier

●Terminal table
No
Terminal
name
A1 MCLK
B3 BCLK
A2 LRCLK
C2 SDI
C1 DVDDIO
B4 SCL
A5 SDA
B2 NRST
A3 ADR
C3 TEST
D1 DVDD
A4 DVSS
B5 REFCLK
D5 PLLVDD
C5 PLLCAP
C4 DVSS
D4 VDD_R
E4 OUT_R
E5 MUTE_R
D3 VSS_R
E1 VDD_L
E2 OUT_L
D2 MUTE_L
E3 VSS_L
Function
Classificati
on
Audio I/F Master clock
A
Audio I/F Bit clock
B
Audio I/F LR clock
B
Audio I/F Serial data
E
Digital IO VDD
-
2wire CPU I/F serial
clock
C
2wire CPU I/F serial data D
Reset
E
Device address select
E
test pin
E
Digital core VDD
-
Digital core VSS
-
reference clock
H
PLL VDD
-
PLL capacitor
F
PLL, Digital VSS
-
Analog VDD
-
Rch output
G
Rch mute
I
Analog VSS
-
Analog VDD
-
Lch output
G
Lch mute
I
Analog VSS
-
Digital/
Analog
D
D
D
D
D
D
D
D
D
D
D
D
D
A
A
D
A
A
A
A
A
A
A
A
In/Out
In/Out
In/Out
In/Out
In
-
Rest middle/rear
Initial
value
Note
in 256fs
in 64fs
in fs
-
- I/O power supply
In
In/Out
In
In
In
-
-
In
-
Out
-
-
Out
Out
-
-
Out
Out
-
-
in
- L: reset
- L:33h or H:36h
-
Please connect to the ground
- Digital power supply
- Digital ground ﾞ
Input 10M～20MHz
- PLL power supply
Hiz
- PLL, Digital ground ﾞ
- Rch power supply
Hiz
Hiz For starting sound decrease
- Rch ground
- Lch power supply
Hiz
Hiz For starting sound decrease
- Lch ground
Table 5 Terminal table
●Terminal equivalent circuit figure
A
DVDDIO
B
DVDDIO
C
LVS
LVS
LVS
DVSSIO
DVSSIO
DVSSIO
D
E
DVDDIO
F
LVS
LVS
DVSSIO
DVSSIO
G
VDD_R VDD_R
VDD_L VDD_L
H
DVDDIO
I
LVS
VSS_R VSS_R
VSS_L VSS_L
DVSSIO
Table 6 Terminal equivalent circuit figure
PLLVDD
PLLVSS
VDD_R
VDD_L
VSS_R VSS_R
VSS_L VSS_L
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