TDA7464 Datasheet, PDF (6/21 Pages) STMicroelectronics – DIGITALLY CONTROLLED AUDIO PROCESSOR WITH SRS SURROUND SOUND AND VOICE CANCELLER

TDA7464
ELECTRICAL CHARACTERISTICS (continued)
Symbol
Parameter
Test Condition
SPEAKER & RECORD ATTENUATORS
C_range
S_STEP
Control Range
Step Resolution
E_A
Attenuation set error
V_DC
A_MUTE
R_VAR
DC Steps
Output Mute Condition
Input Impedance
Av = 0 to -20dB
Av = -20 to -79dB
Adjacent att. steps
SPEAKER ATTENUATORS
V_TH
Zero CrossingThreshold
D7 = 0
AUDIO OUTPUTS
N_O(OFF) Output Noise (OFF)
N_O(MOV)
N_O(MUS)
N_O(SIM)
N_O(SRS)
d
S_C
VOCL
R_OUT
V_OUT
Output Noise (Movie) Standard
Surround Sound
Output Noise (Music) Standard
Surround Sound
Output Noise (Simulated)
Standard Surround Sound
Output Noise (SRS)
Surround Sound
Distorsion
Channel Separation
Clipping Level
Output Resistance
DC Voltage Level
BUS INPUTS
V_IL
Input Low Voltage
V_IH
Input High Voltage
I_IN
Input Current
V_O
Output Voltage SDA
Acknowledge
Output Mute, Flat
B_W = 20Hz to 20KHz
Mode = Movie ,
BW = 20Hz to 20KHz
Mode = Music ,
B_W = 20Hz to 20KHz,
Mode = Simulated,
BW = 20Hz to 20KHz
B_W = 20Hz to 20KHz
Av = 0 ; Vin = 1Vrms
d = 0.3%
I_O = 1.6mA
Min. Typ. Max. Unit
79
dB
0.5
1
1.5
dB
-1.5
0
1.5
dB
-3
0
2
dB
-3
0
3
mV
70
100
dB
22.5
30
37.5 KΩ
V_S
2
+
20
mV
4
µVrms
5
µVrms
30
µVrms
30
µVrms
30
µVrms
50
µVrms
0.01 0.1
%
70
90
dB
2
2.5
Vrms
10
30
50
Ω
3.8
V
1
V
3
V
-5
+5
µA
0.4
V
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