TDA7442 Datasheet, PDF (3/17 Pages) STMicroelectronics – TONE CONTROL AND SURROUND DIGITALLY CONTROLLED AUDIO PROCESSOR

Table 2. Quick Reference Data
Symbol
V_S
V_CL
THD
S/N
S_C
Parameter
Supply Voltage
Max. input signal handling
Total Harmonic Distortion V = 1Vrms f = 1KHz
Signal to Noise Ratio V_out = 1Vrms (mode = OFF)
Channel Separation f = 1KHz
Treble Control (2db step)
Bass Control (2dB step)
Balance Control 1dB step (L_CH, R_CH)
Mute Attenuation
Table 3. Thermal Data
Symbol
Parameter
R_{th j-pins} Thermal Resistance Junction-pins
Table 4. Absolute Maximum Ratings
Symbol
Parameter
V_S
Operating Supply Voltage
T_amb
T_stg
Operating Ambient Temperature
Storage Temperature Range
TDA7442 - TDA7442D
Min.
7
2
-14
-14
-79
Typ.
9
0.01
106
90
100
Max.
10.2
0.1
+14
+14
0
Unit
V
Vrms
%
dB
dB
dB
dB
dB
dB
Max.
Value
85
Unit
°C/W
Value
11
-10 to 70
-55 to +150
Unit
V
°C
°C
Table 5. Electrical Characteristics
Refer to the test circuit T_amb = 25°C, V_S = 9V, R_L = 10KΩ, V_in = 1Vrms; R_G = 600Ω, all controls flat (G =
0dB), Effect Ctrl = -6dB, MODE = OFF; f = 1KHz unless otherwise specified.
Symbol
SUPPLY
Parameter
V_S
I_S
SVR
Supply Voltage
Supply Current
Ripple Rejection
INPUT STAGE
R_IN
Input Resistance
V_CL
Clipping Level
C_RANGE Control Range
AV_MIN Min. Attenuation
A_VMAX Max. Attenuation
A_STEP Step Resolution
BASS CONTROL
G_b
B_STEP
R_B
Control Range
Step Resolution
Internal Feedback Resistance
Test Condition
L_CH / R_{CH out}, Mode = OFF
THD = 0.3%
Max. Boost/cut
Min. Typ. Max. Unit
7
9
10.2
V
10
18
26
mA
60
80
dB
35
50
65
KΩ
2
2.5
Vrms
31.5
dB
-1
0
1
dB
31
31.5
32
dB
0.5
1
dB
±11.5 ±14.0 ±16.0 dB
1
2
3
dB
32
44
56
KΩ
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