BU7858KN_10 Datasheet, PDF (3/25 Pages) Rohm – Mixer & Selector ICs with 16bit D/A Converter

BU7858KN,BU7893GU
Technical Note
●Electrical characteristics
【BU7858KN】
Unless otherwise specified, Ta=25℃, AVDD=DVDD=3.0V
・Analog
Parameter
Symbol
Limits
Min. Typ.
Current Consumption
Idd3
-
2.3
Max.
3.7
DAC S/(N+D)
SN+D
-
85
-
DAC S/N
Headphone Amplifier
Total Harmonic Distortion
Headphone Amplifier
Maximum Output
Headphone Amplifier
Output Noise Voltage
SPO Maximum Output Level
SNR
-
92
-
THDhp
-
0.05 0.5
PO
-
10
-
VNO
-
-94
-80
VOMAX1 2.0
-
-
EXTO Maximum Output Level
VOMAX2 2.0
-
-
Unit
Conditions
mA 16Ω driver part and no signal
dB
fs=44.1kHz, fin=1kHz, 20kHz
LPF, Vin=-0.5dBFS
dB
fs=44.1kHz, fin=1kHz
, A-weighted, Vin=0dBFS
%
fin=1kHz, 20kHz LPF,
Vin=-10dBV
mW fin=1kHz, THD=10%, RL=16Ω
dBV A-weighted
V_P-P fin=1kHz, THD≦1%, 10kΩLoad
V_P-P fin=1kHz, THD≦1%, 600ΩLoad
・Digital (DC)
Parameter
Digital Input Voltage “L”
Digital Input Voltage “H”
Digital Output Voltage “L”
Digital Output Voltage “H”
Input Leakage Current 1
Limits
Symbol
Unit
Min. Typ. Max.
VIL
-
-
0.2 x
DVDD
V
VIH
0.8 x
DVDD
-
-
V
Conditions
VOL
-
-
0.5
V Iol=-500µA
VOH
DVDD
-0.5
-
-
V Ioh=500µA
IIN1
-
-
±2
µA at 0V, 3V
・Audio Interface
Parameter
MCLKI Frequency
MCLKI Duty Ratio
LRCLK Frequency
LRCLK Duty Ratio
BCLK Frequency
BCLK Duty Ratio
LRCLK edge to BCLK↑ Time
BCLK↑ to LRCLK Edge Time
Data Hold Time
Data Set-up Time
Symbol
fMCLK
dMCLK
fs
dLR
fBCK
dBCK
tLRS
tSLR
tSDH
tSDS
Min.
4.096
45
16
45
0.512
45
50
50
50
50
Limits
Typ.
-
-
-
-
-
-
-
-
-
-
Max.
18.432
55
48
55
3.072
55
-
-
-
-
Unit
MHz
%
kHz
%
MHz
%
ns
ns
ns
ns
Conditions
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2010.09 - Rev.A