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SM5879AV Datasheet, PDF (10/20 Pages) Nippon Precision Circuits Inc – 3rd-order , 2-channel D/A Converter | |||
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SM5879AV
AC Analog Characteristics
DVSS = AVSSL= AVSSR = XVSS = 0 V, DVDD = AVDDL = AVDDR = XVDD = 2.7V, P/M=2.7V, MUTE=0V,
DEEM=0V, BB1=2.7V, BB2=2.7V, crystal oscillator frequency fOSC = 16.9344 MHz, Ta = 25 °C
Parameter
Total harmonic distortion
LSI output level
Evaluation board output level
Dynamic range
Signal-to-noise ratio1
Channel separation
Symbol
THD + N
Vout1
Vout2
D.R
S/N
Ch. Sep
Condition
1 kHz, 0 dB
1 kHz, 0 dB
1 kHz, 0 dB
1 kHz, â60 dB
1 kHz, 0/ââ dB
1 kHz, ââ/0 dB
Rating
Unit
min
typ
max
â
0.0075
0.015
%
0.65
0.70
0.75
Vrms
â
0.70
â
Vrms
86.0
91.0
â
dB
86.0
91.5
â
dB
80.0
87.0
â
dB
1. Signal-to-noise is measured following a device reset, with DATA = 0 (DI = LOW). Under these conditions, the signal-to-noise ratio includes noise-shaper
noise.
AC Measurement Circuit and Conditions
Measurement circuit block diagram
Signal
Generator
CKO(384fs)
BCK
LRCK(fs)
DATA
Left Channel
Evaluation
L/R Channel
Board Right Channel Selector
Distortion
Analyzer
fs= 44.1kHz
DATA= 16bit
Measurement conditions
Parameter1
Total harmonic distortion
Output level
Dynamic range
Signal-to-noise ratio
Symbol
THD + N
Vout
DR
S/N
Channel separation
Ch. Sep
1. Pins LO and RO should have an output load of 10 k⦠(min).
10k⦠Input Impedance
NF Corporation 3346A
RMS Measurement
Shibasoku AD725C
3346A left/right-channel selector
switch
AD725C distortion analyzer with
built-in ï¬lter
THRU
D-RANGE
THRU
THRU
20 kHz lowpass ï¬lter ON
400 Hz highpass ï¬lter OFF
20 kHz lowpass ï¬lter ON
400 Hz highpass ï¬lter OFF
JIS A ï¬lter ON
20 kHz lowpass ï¬lter ON
400 Hz highpass ï¬lter OFF
NIPPON PRECISION CIRCUITSâ10
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