TDA7465 Datasheet, PDF (5/20 Pages) STMicroelectronics – DIGITALLY CONTROLLED AUDIO PROCESSOR WITH SRS SURROUND SOUND AND VOICE CANCELLER

TDA7465
ELECTRICAL CHARACTERISTICS (continued)
Symbol
R_MON1
Parameter
Simulated R Output 1
R_MON2 Simulated R Output 2
R_MON3 Simulated R Output 3
R_LP1
R_HPI
R_{L PF}
R_REARIN
R_REAROUT
V_OUT
Low Pass Filter Resistance
High Pass Filter Resistance
LP Pin Impedance
Rear Input Resistance
Rear Output Resistance
DC Rear Voltage Level
Test Condition
Simulated Mode, Effect Ctrl = -6dB
Input signal of 250Hz,
1.4 V_p-p, R_in and L_in →R_out
Simulated Mode, Effect Ctrl = -6dB
Input signal of 1kHz,
1.4 V_p-p, R_in and L_in →R_out
Simulated Mode, Effect Ctrl = -6dB
Input signal of 3.6kHz,
1.4 V_p-p, R_in and L_in → R_out
D6 = 0
D6 = 0
D6 = 0
Min.
7.5
45
7.5
37.5
10
Typ. Max.
– 4.5
3.8
– 20
10 12.5
60
75
10 12.5
50 62.5
30
50
4.5
Unit
dB
dB
dB
KΩ
KΩ
KΩ
KΩ
Ω
V
STANDARD SURROUND SOUND EFFECT CONTROL
C_RANGE Control Range
S_STEP
Step Resolution
- 21
1
-6
dB
dB
SURROUND SOUND MATRIX PHASE
R_PS10 Phase Shifter 1: D1 = 0, D0 = 0
R_PS11 Phase Shifter 1: D1 = 0, D0 = 1
R_PS12 Phase Shifter 1: D1 = 1, D0 = 0
R_PS13
Phase Shifter 1: D1 = 1, D0 = 1
R_PS20 Phase Shifter 2: D3 = 0, D2 = 0
R_PS21
Phase Shifter 2: D3 = 0, D2 = 1
R_PS22 Phase Shifter 2: D3 = 1, D2 = 0
R_PS23 Phase Shifter 2: D3 = 1, D2 = 1
R_PS30 Phase Shifter 3: D5 = 0, D4 = 0
R_PS31 Phase Shifter 3: D5 = 0, D4 = 1
R_PS32 Phase Shifter 3: D5 = 1, D4 = 0
R_PS33 Phase Shifter 3: D5 = 1, D4 = 1
R_PS40
Phase Shifter 4: D7 = 0, D6 = 0
8.8 11.8 14.8 KΩ
10.6 14.1 17.6 KΩ
13.4 17.9 22.4 KΩ
28 37.3 46.6 KΩ
4.2
5.6
7
KΩ
5.1
6.8
8.5
KΩ
6.3
8.4 10.5 KΩ
13.7 18.3 22.9 KΩ
9
12.1 15.1 KΩ
10.9 14.5 18.1 KΩ
13.6 18.1 22.6 KΩ
29.3 39.1 48.9 KΩ
9
12.1 15.1 KΩ
SRS SURROUND SOUND MATRIX
CENTER
Step _C
SPACE
Step_S
P_ERSP1
SRS Control Range
Center Step Resolution
SRS Space Control Range
Space Step Resolution
Perspective 1
P_ERSP2 Perspective 2
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 → ROUT
Input Signal of 2.15KHz
0
dB
SPACE = 0dB, CENTER = MUTE
Rin = GND; Lin → ROUT
SPACE = MUTE, CENTER =0dB
-8.5
dB
Rin = GND; Lin → ROUT
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