BU7839GVW Datasheet, PDF (14/16 Pages) Rohm – Digital Input Hi-Fi Class-D Headphone Amplifier

●PLL Part
Ta=25degree,DVDD=DVDDIO=1.5V, VDD_R=VDD_L=PLLVDD=2.8V, REFCLK=12MHz, fs=44.1kHz
specification
Item
Symbol
MIN
TYP
MAX
Unit
Condition
Lock up time
Tlock
-
-
15
msec
BCLK Duty Cycle
Dbclk
40
-
60
%
Table 16 Electric characteristic
PLLCAP
0.068uF
REFCLK
12MHz
refclk_enb
1/N
PD
VCO
n32
n44
n48
1/M
m32
m44
m48
p_pll
div_vco
fs=48k,44.1k,32k
fs
1/2
fs=24k,22.05k,16k
1/4
fs=12k,11.025k,8k
Fig.17 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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