Philips Semiconductors
Preliminary specification
Economy audio CODEC for MiniDisc (MD)
home stereo and portable applications
UDA1341TS
11 AC CHARACTERISTICS (ANALOG)
VDDD = VDDA = 3 V; fi = 1 kHz; fs = 44.1 kHz; Tamb = 25 °C; RL = 5 kΩ; all voltages measured with respect to ground
(pins 1, 11 and 27); unless otherwise specified.
SYMBOL PARAMETER
Analog-to-digital converter
CONDITIONS
MIN.
TYP.
MAX.
UNIT
Vi(rms)
input voltage (RMS value) notes 1 and 2
−
−
1.0
−
−
V
∆Vi
unbalance between
channels
0.1
dB
(THD + N)/S
total harmonic
distortion-plus-noise to
signal ratio
stand-alone mode
0 dB
−
−
−85
−37
−80
−33
dB
dB
−60 dB; A-weighted
double differential mode
0 dB
−
−
−90
−40
−85
−36
dB
dB
−60 dB; A-weighted
Vi = 0 V; A-weighted
stand-alone mode
double differential mode
S/N
signal-to-noise ratio
channel separation
−
−
−
−
97
−
−
−
−
dB
dB
dB
dB
100
100
30
αcs
PSRR
power supply rejection ratio fripple = 1 kHz;
ripple(p-p) = 30 mV
V
Manual gain mode (AGC disabled)
Gmin
Gmax
Gstep
minimum gain
maximum gain
digital gain step
−
−
−
−3
−
−
−
dB
dB
dB
60.5
0.5
Programmable gain amplifier
Vi(rms)
input voltage (RMS value) at full-scale
−3 dB setting
−
−
−
−
−
−
−
1414
1000
708
355
178
89
−
−
−
−
−
−
−
mV
mV
mV
mV
mV
mV
mV
0 dB setting
3 dB setting
9 dB setting
15 dB setting
21 dB setting
27 dB setting
44
(THD + N)/S
total harmonic
at 0 dB
distortion-plus-noise to
signal ratio
−3 dB setting
0 dB setting
3 dB setting
9 dB setting
15 dB setting
21 dB setting
27 dB setting
−
−
−
−
−
−
−
−75
−85
−85
−85
−80
−75
−75
−
−
−
−
−
−
−
dB
dB
dB
dB
dB
dB
dB
1998 Dec 18
23
NXP [ NXP ]
