SM5878AM Datasheet, PDF (10/16 Pages) Nippon Precision Circuits Inc – 3rd-order , 2-channel D/A converter

SM5878AM/AV
AC Analog Characteristics
Normal-voltage: DV_SS = AV_SS = XV_SS = 0 V, DV_DD = AV_DD = XV_DD = 5 V, AV_DD = AV_DDL = AV_DDR, DS =
0 V, DEEM = 0 V, crystal oscillator frequency f_OSC = 16.9344 MHz, T_a = 25 °C
Parameter
Total harmonic distortion
LSI output level
Evaluation board output level
Dynamic range
Signal-to-noise ratio¹
Channel separation
Symbol
THD + N
V_out1
V_out2
D.R
S/N
Ch. Sep
Condition
1 kHz, 0 dB
1 kHz, 0 dB
1 kHz, 0 dB
1 kHz, −60 dB
1 kHz, 0/−∞ dB
1 kHz, −∞/0 dB
Rating
Unit
min
typ
max
–
0.003
0.006
%
1.2
1.3
1.4
V_rms
–
1.3
–
V_rms
92
98
–
dB
94
100
–
dB
91
97
–
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.
Measurement Circuit and Conditions
Measurement circuit block diagram
Signal
generator
CKO (384fs)
BCK
LRCK (fs)
DATA
Evaluation
board
Left channel
Right channel
Left/Right
channel selector
fs = 44.1 kHz
DATA = 16 bits
NF Corporation 3346A.
10 k input impedance
Distortion
analyzer
Shibasoku AD725C.
RMS measurement
Measurement conditions
Parameter¹
Total harmonic distortion
Output level
Dynamic range
Signal-to-noise ratio
Symbol
THD + N
V_out
DR
S/N
Channel separation
Ch. Sep
1. Pins LO and RO should have an output load of 10 kΩ (min).
3346A left/right-channel selector
switch
AD725C distortion analyzer with
built-in filter
THRU
D-RANGE
THRU
THRU
20 kHz lowpass filter ON
400 Hz highpass filter OFF
20 kHz lowpass filter ON
400 Hz highpass filter OFF
JIS A filter ON
20 kHz lowpass filter ON
400 Hz highpass filter OFF
NIPPON PRECISION CIRCUITS—10