S5L986F01 Datasheet, PDF (30/35 Pages) Samsung semiconductor – DIGITAL SIGNAL PROCESSOR FOR CDP

S5L9286F01
DIGITAL SIGNAL PROCESSOR FOR CDP
D/A CONVERTER (DIGITAL TO ANALOG CONVERTER)
The S5L9284E has a built-in 16-bit D/A converter. Digital audio data is a 2's complement serial format (MSB sirst),
Vref Terminal
Vref, the reference voltage across a resister-ladder, is usually recommended with VrefH1=5V, VrefL1=0V.
One way of avoiding an amplitude mismatching between the Vref and OP AMP input connected to the output of D/
A converter is to reduce the analog output amplitude with VrefH2=5V and VrefL2=0V (At this time about 100µF
capacitor should be connected from VreH1 and VrefL1 to GND). By the effect of built-in RH and RL with this
choice, the maximum analog output amplitude result in a narrow range of about 1.5 ~ 3.5V for 0dB playback.
VREFH1 VREFH2
D3 - D0,
D15 - D7
Voltage
Dividing
D/A Converter
VREFL1
VREFL2
Analog
MUX
Control
Circuit
D6 - D4
RCHOUT
LCHOUT
Figure 17. Vref Relation Circuit
D/A Converter Electrical Characteristic
The D/A Converter electrical characteristic built in S5L9826F01 is as follows.
(V_DD = 5V, V_SS = 0V, Ta = 25^oC)
Characteristics
Symbol
Total Harmonic Distortion THD
Signal to Noise Ratio
S/N
Cross-Talk
CT
Test Conditon
Data=1kHz, 0dB
V_DD=4.5V
Data=1kHz, 0dB
Data=1kHz, 0dB
MIN
TYP MAX
Unit
−
−
0.08
%
−
92
−
dB
−
−85
−
dB
30