TDA7437N_06 Datasheet, PDF (28/34 Pages) STMicroelectronics – Digitally controlled audio processor

Curves of electrical characteristics
6
Curves of electrical characteristics
TDA7437N
Figure 7. Power on time constant vs C_REF
capacitor C_REF = 4.7μF
V
(1V/div)
D95AU380
Figure 8. Power on time constant vs C_REF
capacitor C_REF = 10μF
V
(1V/div)
D95AU381
2
OUT LF
1
CREF
BWL
0.5s/DIV TIME
Figure 9. Power on time constant vs C_REF
capacitor C_REF = 22μF
2
OUT LF
1
CREF
BWL
0.5s/DIV TIME
Figure 10. SVRR vs. frequency
V
(1V)
D95AU382
2
OUT LF
1
CREF
BWL
Figure 11. Soft mute ON
(a)
1s/DIV TIME
SOFT MUTE=ON SLOPE=FAST Vout=500mVrms
V
D95AU384
S_VRR
(dB)
-40
-50
22_μF
-60
47μF
-70
4.7μF
-80
-90
-100
10
100
1K
D95AU383
VS=8V
Ripple=0.2VRMS
AV=-15dB
10K Freq(Hz)
(b)
V
Main Menu
Pin Csm
Vout
SOFT MUTE
CH1 9V DC
Chan 2
1ms 0.2V
Chan 3
1ms 2V
CH1 0.5V1x0 ~
TIME
CH2 20mV1x0 ~
CH3 0.2V_1x0 =
CH4 20mV_1x0 = T/div 1ms
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