Philips Semiconductors
Low-voltage low-power stereo audio
CODEC with DSP features
Preliminary specification
UDA1340
AC CHARACTERISTICS (ANALOG)
VDDD = VDDA = VDDO = 3 V; fi = 1 kHz; Tamb = 25 °C; RL = 5 kΩ all voltages referenced to ground
(pins 1, 11, 22 and 27); unless otherwise specified.
SYMBOL
PARAMETER
CONDITIONS
MIN. TYP. MAX. UNIT
Analog-to-digital converter
Vi(rms)
∆Vi
(THD + N)/S
input voltage (RMS value)
unbalance between channels
total harmonic distortion plus
noise-to-signal ratio
S/N
αCS
PSRR
signal-to-noise ratio
channel separation
power supply rejection ratio
Digital-to-analog converter
Vo(rms)
∆Vo
(THD + N)/S
output voltage (RMS value)
unbalance between channels
total harmonic distortion plus
noise-to-signal ratio
S/N
αcs
PSRR
signal-to-noise ratio
channel separation
power supply rejection ratio
at 0 dB
at −60 dB; A-weighted
Vi = 0 V; A-weighted
fripple = 1 kHz;
Vripple(p-p) = 30 mV
at 0 dB
at −60 dB; A-weighted
code = 0; A-weighted
fripple = 1 kHz;
Vripple(p-p) = 100 mV
−
0.8 −
V
−
0.1 −
dB
−
−85 −80 dB
−
−35 −30 dBA
−
95
−
dBA
−
100 −
dB
−
30
−
dB
−
0.8 −
V
−
0.1 −
dB
−
−85 −80 dB
−
−35 −
dBA
−
100 −
dBA
−
80
−
dB
−
50
−
dB
1997 Jul 09
16