Datasheet

2003 Apr 10 65
NXP Semiconductors Preliminary specification
Stereo audio codec with SPDIF interface UDA1355H
Reference voltage
V
REF
reference voltage on
pin REF
with respect to V
SSA
0.45V
DD
0.5V
DD
0.55V
DD
V
Digital-to-analog converter
V
o(rms)
output voltage (RMS value) − 900 − mV
ΔV
o
output voltage unbalance − 0.1 − dB
(THD+N)/S total harmonic
distortion-plus-noise to
signal ratio
IEC 60958 input; f
s
=48kHz
at 0 dB −−88 − dB
at −20 dB −−75 − dB
at −60 dB; A-weighted −−37 − dB
IEC 60958 input; f
s
=96kHz
at 0 dB −−83 − dB
at −60 dB; A-weighted −−37 − dB
S/N signal-to-noise ratio IEC 60958 input; code = 0;
A-weighted
f
s
=48kHz − 98 − dB
f
s
=96kHz − 96 − dB
α
cs
channel separation f
i
=1kHz tone − 100 − dB
R
L
load resistance 3 −− kΩ
C
L
load capacitance note 2 −−200 pF
R
o
output resistance − 0.13 3.0 Ω
I
o(max)
maximum output current (THD + N)/S < 0.1%;
R
L
=5kΩ
− tbf − mA
Analog-to-digital converter
V
ADCP
positive ADC reference
voltage
− V
DDA2
− V
V
ADCN
negative ADC reference
voltage
− 0.0 − V
V
i
(rms) input voltage (RMS value) V
o
= −1.16 dBFS digital
output
− 1.0 − V
ΔV
i
input voltage unbalance − 0.1 − dB
(THD+N)/S total harmonic
distortion-plus-noise to
signal ratio
f
s
=48kHz
at 0 dB −−85 − dB
at −60 dB; A-weighted −−35 − dB
f
s
=96kHz
at 0 dB −−85 − dB
at −60 dB; A-weighted −−35 − dB
S/N signal-to-noise ratio code = 0; A-weighted
f
s
=48kHz − 97 − dB
f
s
=96kHz − 95 − dB
αcs channel separation − 100 − dB
SYMBOL PARAMETER CONDITIONS MIN. TYP. MAX. UNIT