Datasheet

213
4341H–MP3–10/07
AT8xC51SND2C/MP3B
Figure 24-9. Dissipated Power vs Output Power, AUDVBAT = 3.2V
24.2.6.2 DAC
AUDVDD, HSVDD = 2.8 V, Ta=25°C, typical case, unless otherwise noted
All noise and distortion specifications are measured in the 20 Hz to 0.425xFs and A-weighted
filtered.
Full Scale levels scale proportionally with the analog supply voltage.
0
50
100
150
200
250
300
350
400
450
500
550
600
0 100 200 300 400 500 600 700 800
Output Power [mW]
Dissipated Power [mW]
8 Ohms load
6.5 Ohms load
Table 24-6. Audio DAC Specification
OVERALL MIN TYP MAX UNITS
Operating Temperature -40 +25 +125 °C
Analog Supply Voltage ( AUDVDD, HSVDD ) 2.7 2.8 3.3 V
Digital Supply Voltage ( VDD ) 2.4 2.8 3.3 V
Audio Amplifier Supply ( AUDVBAT ) 3.2 - 5.5 V
DIGITAL INPUTS/OUTPUTS
Resolution 20 Bits
Logic Family CMOS
Logic Coding 2’s Complement
ANALOG PERFORMANCE – DAC to Line-out/Headphone Output
Output level for full scale input
(for AUDVDD, HSVDD = 2.8 V)
1.65 Vpp
Output common mode voltage 0.5x HSVDD V
Output load resistance (on HSL , HSR )
- Headphone load
- Line load
16 32
10
Ohm
kOhm