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●
ABSOLUTE MAXIMUM RATINGS
Parameter Symbol Rating
Unit
Power-Supply
Voltage
BU7858KN VDD
-0.3
~
4.5
V
BU7893GU
DVDDIO
AVDD
-0.3
~
4.5
V
DVDDCO
-0.3
~
2.5
Power Dissipation
BU7858KN
Pd
580 *1
mW
BU7893GU 700
*2
Operating
Temperature
BU7858KN
T
OPR
-20
~
+85
℃
BU7893GU
-30
~
+85
Storage
Temperature
BU7858KN
T
STG
-55
~
+125
℃
BU7893GU
-50
~
+125
*1 5.8mW is decreased every 1
℃
when using it over 25
℃
. (mounted on the ROHM standard PCB )
*2
7.0mW is decreased every 1
℃
when using it over 25
℃
.
●
RECOMMENDED OPERATING CONDITION
【
BU7858KN
】
Parameter Symbol
Min
Typ
Max
Unit
Power-Supply Voltage
VDD
2.7
3.0
3.3
V
【
BU7893GU
】
Parameter Symbol
Min
Typ
Max
Unit
Analog Power-Supply Voltage
AVDD
2.6
2.8
3.3
V
Digital I/O Power-Supply Voltage
DVDDIO
DVDDCO
1.8
3.3
V
Digital Core Power-Supply Voltage
DVDDCO
1.62
1.8
1.98
V
●
ELECTRICAL CHARACTERISTICS
【
BU7858KN
】
Unless otherwise specified
、
Ta=25
℃、
AVDD=DVDD=3.0V
・
Analog
Parameter Symbol
Min
Typ
Max
Unit Condition
Current Consumption
Idd3
-
2.3 3.7 mA
16
Ω
driver part and no signal
DAC S/(N+D)
SN+D
-
85
-
dB
fs=44.1kHz, fin=1kHz, 20kHz
LPF, Vin=-0.5dBFS
DAC S/N
SNR
-
92
-
dB
fs=44.1kHz, fin=1kHz
, A-weighted, Vin=0dBFS
Headphone Amplifier Total
Harmonic Distortion
THDhp
-
0.05
0.5
%
fin=1kHz, 20kHz LPF, Vin=-10dBV
Headphone Amplifier Maximum
Output
PO
-
10
-
mW
fin=1kHz,
THD=10%,
RL=16
Ω
Headphone Amplifier Output
Noise Voltage
VNO
-
-94 -80
dBV
A-weighted
SPO Maximum Output Level
VOMAX1
2.0
-
-
V
P-P
fin=1kHz,
THD
≦
1%, 10k
Ω
Load
EXTO Maximum Output Level
VOMAX2
2.0
-
-
V
P-P
fin=1kHz,
THD
≦
1%, 600
Ω
Load
・
Digital (DC)
Parameter Symbol
Min
Typ
Max
Unit Condition
Digital Input Voltage “L”
VIL
-
-
0.2 x
DVDD
V
Digital Input Voltage “H”
VIH
0.8 x
DVDD
-
-
V
Digital Output Voltage “L”
VOL
-
-
0.5 V
Iol=-500
μ
A
Digital Output Voltage “H”
VOH
DVDD
-0.5
-
-
V
Ioh=500
μ
A
Input Leakage Current 1
IIN1
-
-
±
2
μ
A
at 0V, 3V
Summary of Contents for BU7858KN
Page 24: ...Catalog No 07T253A 07 10 ROHM...