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TDA7464 Datasheet, PDF (5/21 Pages) STMicroelectronics – DIGITALLY CONTROLLED AUDIO PROCESSOR WITH SRS SURROUND SOUND AND VOICE CANCELLER | |||
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TDA7464
ELECTRICAL CHARACTERISTICS (continued)
Symbol
RMON1
Parameter
Simulated R Output 1
RMON2 Simulated R Output 2
RMON3 Simulated R Output 3
RLP1
RHPI
RL PF
Low Pass Filter Resistance
High Pass Filter Resistance
LP Pin Impedance
Test Condition
Simulated Mode, EffectCtrl = -6dB
Input signal of 250Hz,
1.4 Vp-p, Rin and Lin âRout
Simulated Mode, EffectCtrl = -6dB
Input signal of 1kHz,
1.4 Vp-p, Rin and Lin âRout
Simulated Mode, EffectCtrl = -6dB
Input signal of 3.6kHz,
1.4 Vp-p, Rin and Lin â Rout
Min.
7.5
45
7.5
Typ. Max.
â 4.5
3.8
â 20
10 12.5
60
75
10 12.5
Unit
dB
dB
dB
Kâ¦
Kâ¦
Kâ¦
STANDARD SURROUND SOUND EFFECT CONTROL
CRANGE Control Range
SSTEP
Step Resolution
- 21
1
-6
dB
dB
SURROUND SOUND MATRIX PHASE
RPS10 Phase Shifter 1: D1 = 0, D0 = 0
RPS11
Phase Shifter 1: D1 = 0, D0 = 1
RPS12 Phase Shifter 1: D1 = 1, D0 = 0
RPS13 Phase Shifter 1: D1 = 1, D0 = 1
RPS20 Phase Shifter 2: D3 = 0, D2 = 0
RPS21 Phase Shifter 2: D3 = 0, D2 = 1
RPS22
Phase Shifter 2: D3 = 1, D2 = 0
RPS23 Phase Shifter 2: D3 = 1, D2 = 1
RPS30
Phase Shifter 3: D5 = 0, D4 = 0
RPS31 Phase Shifter 3: D5 = 0, D4 = 1
RPS32 Phase Shifter 3: D5 = 1, D4 = 0
RPS33 Phase Shifter 3: D5 = 1, D4 = 1
RPS40 Phase Shifter 4: D7 = 0, D6 = 0
RPS41 Phase Shifter 4: D7 = 0, D6 = 1
RPS42 Phase Shifter 4: D7 = 1, D6 = 0
RPS43
Phase Shifter 4: D7 = 1, D6 = 1
8.8 11.8 14.8 Kâ¦
10.6 14.1 17.6 Kâ¦
13.4 17.9 22.4 Kâ¦
28
37.3 46.6 Kâ¦
4.2
5.6
7
Kâ¦
5.1
6.8
8.5
Kâ¦
6.3
8.4 10.5 Kâ¦
13.7 18.3 22.9 Kâ¦
9
12.1 15.1 Kâ¦
10.9 14.5 18.1 Kâ¦
13.6 18.1 22.6 Kâ¦
29.3 39.1 48.9 Kâ¦
9
12.1 15.1 Kâ¦
10.9 14.5 18.1 Kâ¦
13.6 18.1 22.6 Kâ¦
29.3 39.1 48.9 Kâ¦
SRS SURROUND SOUND MATRIX
CENTER
StepC
SPACE
StepS
PERSP1
SRS Control Range
Center Step Resolution
SRS Space Control Range
Space Step Resolution
Perspective 1
PERSP2 Perspective 2
L+R
L+ R SRS Curve
L, R
L, R SRS Curve
-31
0
dB
1
dB
-31
0
dB
1
dB
Input Signal of 125Hz
12
dB
SPACE = 0dB, CENTER = MUTE
Rin = GND; Lin â ROUT
Input Signal of 2.15KHz
0
dB
SPACE = 0dB, CENTER = MUTE
Rin = GND; Lin â ROUT
SPACE = MUTE, CENTER =0dB
-8.5
dB
Rin = GND; Lin â ROUT
SPACE = MUTE,
CENTER = MUTE
Rin = GND; Lin â LOUT
Lin = GND; Rin â ROUT
-13.4
dB
5/21
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