LM4935 Datasheet, PDF (46/90 Pages) National Semiconductor (TI) – Audio Sub-System with Dual-Mode Stereo Headphone and Mono High Efficiency Loudspeaker Amplifiers and Multi-Purpose ADC

LM4935, LM4935RLEVAL
SNAS296E – OCTOBER 2005 – REVISED MAY 2013
www.ti.com
5 Typical Performance Characteristics
(For all performance curves AV_DD refers to the voltage applied to the A_V_DD and LS_V_DD pins. DV_DD refers to the voltage
applied to the D_V_DD and PLL_V_DD pins; AV_DD = 3.3V and DV_DD = 3.3V unless otherwise specified.
Stereo DAC Frequency Response
f_S = 8kHz
+3
+2
+1
+0
-1
-2
-3
20 50 100 200 500 1k 2k 5k 10k 20k
FREQUENCY (Hz)
Figure 5-1.
Stereo DAC Frequency Response Zoom
f_S = 8kHz
+0.5
+0.4
+0.3
+0.2
+0.1
+0
-0.1
-0.2
-0.3
-0.4
-0.5
20 50 100 200 500 1k 2k 5k 10k 20k
FREQUENCY (Hz)
Figure 5-2.
Stereo DAC Frequency Response
+3
f_S = 16kHz
+2
+1
+0
-1
-2
-3
20 50 100 200 500 1k 2k 5k 10k 20k
FREQUENCY (Hz)
Figure 5-3.
Stereo DAC Frequency Response Zoom
f_S = 16kHz
+0.5
+0.4
+0.3
+0.2
+0.1
+0
-0.1
-0.2
-0.3
-0.4
-0.5
20 50 100 200 500 1k 2k 5k 10k 20k
FREQUENCY (Hz)
Figure 5-4.
Stereo DAC Frequency Response
+3
f_S = 24kHz
+2
+1
+0
-1
-2
-3
20 50 100 200 500 1k 2k 5k 10k 20k
FREQUENCY (Hz)
Figure 5-5.
Stereo DAC Frequency Response Zoom
f_S = 24kHz
+0.5
+0.4
+0.3
+0.2
+0.1
+0
-0.1
-0.2
-0.3
-0.4
-0.5
20 50 100 200 500 1k 2k 5k 10k 20k
FREQUENCY (Hz)
Figure 5-6.
46
Typical Performance Characteristics
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