TDA7464 Datasheet, PDF (4/21 Pages) STMicroelectronics – DIGITALLY CONTROLLED AUDIO PROCESSOR WITH SRS SURROUND SOUND AND VOICE CANCELLER

TDA7464
ELECTRICAL CHARACTERISTICS (continued)
Symbol
SUPPLY
Parameter
Test Condition
A_VO3
Voice Canceller Output 3
R_LPV
Low Pass Filter Resistance
BASS CONTROL
Gb
Control Range
B_STEP
R_B
Step Resolution
Internal Feedback Resistance
MIDDLE CONTROL
Gm
Control Range
M_STEP
Step Resolution
R_M
Internal Feedback Resistance
TREBLE CONTROL
Gt
Control Range
T_STEP
Step Resolution
L_IN = -R_IN, V_mix = 0V FIX,
0dB attenuation
Max. Boost/cut
Max. Boost/cut
Max. Boost/cut
Min. Typ. Max. Unit
5
6
7
dB
24
32
40
KΩ
+12.0 +14.0 +16.0 dB
1
2
3
dB
33
44
55
KΩ
+12.0 +14.0 +16.0 dB
1
2
3
dB
18.75 25 31.25 KΩ
+13.0 +14.0 +15.0 dB
1
2
3
dB
STANDARD SURROUND SOUND MATRIX
TEST CONDITION (Phase Resistor Selection D0=0, D1=1, D2=0. D3=1, D4=0, D5=1, D6=0, D7=1
Symbol
G_OFF
Parameter
In-phase Gain (OFF)
D_GOFF
G_MOV
LR In-phase Gain Difference
(OFF)
In-phase Gain (Movie)
D_GMOV
G_MUS
LR In-phase Gain Difference
(Movie)
In-phase Gain (Music)
D_GMUS
L_MON1
LR In-phase Gain Difference
(Music)
Simulated L Output 1
L_MON2
Simulated L Output 2
L_MON3
Simulated L Output 3
Test Condition
Mode OFF, Input signal of
1kHz, 1.4 V_p-p, R_in → R_out
L_in → L_out
Mode OFF, Input signal of
1kHz, 1.4 V_p-p
R_in → R_out, L_in → L_out
Movie mode, Effect Ctrl = -6dB
Input signal of 1kHz, 1.4 V_p-p
R_in → R_out, L_in → L_out
Movie mode, Effect Ctrl = -6dB
Input signal of 1kHz, 1.4 V_p-p
(R_in → R_out) – (L_in → L_out)
Music mode, Effect Ctrl = -6dB
Input signal of 1kHz, 1.4 V_p-p
(R_in → R_out), (L_in → L_out)
Music mode, Effect Ctrl = -6dB
Input signal of 1kHz, 1.4 V_p-p
(R_in → R_out) - (L_in → L_out)
Simulated Mode, EffectCtrl = -6dB
Input signal of 250Hz,
1.4 V_p-p, R_in and L_in → L_out
Simulated Mode, EffectCtrl = -6dB
Input signal of 1kHz,
1.4 V_p-p, R_in and L_in → L_out
Simulated Mode, EffectCtrl = -6dB
Input signal of 3.6kHz,
1.4 Vp-p, Rin and Lin → Lout
Min.
-1
-1
Typ.
0
Max.
1
0
1
8
0
7
0
4.5
– 4.0
7.0
Unit
dB
dB
dB
dB
dB
dB
dB
dB
dB
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