BU7839GVW_10 Datasheet, PDF (14/16 Pages) Rohm – Digital Input Class-D Headphone Amplifier

BU7839GVW
Technical Note
●PLL Part
Ta=25degree,DVDD=DVDDIO=1.5V, VDD_R=VDD_L=PLLVDD=2.8V, REFCLK=12MHz, fs=44.1kHz
specification
Item
Symbol
Unit
Condition
MIN
TYP
MAX
Lock up time
Tlock
-
-
15
msec
BCLK Duty Cycle
Dbclk
40
-
60
%
PLLCAP
0.068µF
REFCLK
12MHz
1/N
n32
n44
n48
refclk_enb
PD
VCO
p_pll
1/M
m32
m44
m48
div_vco
fs=48k,44.1k,32k
fs
1/2
fs=24k,22.05k,16k
1/4
fs=12k,11.025k,8k
Fig.8 Block diagram of PLL part
slave
01
mclk_enb
1/4
1/256
slave
D-Class
Logic
MCLK
256fs/384fs
BCLK
64fs
LRCLK
fs
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2010.05 - Rev.A