TDA7343 Datasheet, PDF (4/14 Pages) STMicroelectronics – DIGITALLY CONTROLLED AUDIO PROCESSOR

TDA7343
ELECTRICAL CHARACTERISTICS (VS = 9V; RL = 10KΩ; Rg = 50Ω; Tamb = 25°C; all controls flat
(G - 0dB); f = 1KHz. Refer to the test circuit, unless otherwise specified.)
Symbol
Parameter
Test Condition
Min. Typ. Max. Unit
INPUT SELECTOR
R_I
Input Resistance
V_CL
Clipping Level
S_I
Input Separation
R_L
Output Load Resistance
G_{I MIN}
G_{I MAX}
Minimum Input Gain
Maximum Input Gain
G_step
Step Resolution
e_N
Input Noise
V_DC
DC Steps
VOLUME CONTROL
R_I
G_MAX
Input Resistance
Maximum Gain
A_MAX
Maximum Attenuation
A_STEPC
Step Resolution Coarse
Attenuation
A_STEPF Step Resolution Fine Attenuation
E_A
Attenuation Set Error
E_t
Tracking Error
V_DC
DC Steps
LOUDNESS CONTROL
R_I
Internal Resistor
A_MAX
Maximum Attenuation
A_step
Step Resolution
ZERO CROSSING MUTE
V_TH
Zero Crossing Threshold
(note 1)
A_MUTE
V_DC
Mute Attenuation
DC Step
SOFT MUTE
A_MUTE
T_DON
Mute Attenuation
ON Delay Time
TDOFF
OFF Delay Time
V_THSM
R_INT
V_SMH
V_SML
Soft Mute Threshold
Pullup Resistor (pin 22)
(pin 22) Level High
(pin 22) Level Low
d ≤ 0.3%
20Hz to 20 KHz unweighted
Adiacent Gain Steps
G_IMIN to G_IMAX
G = 20 to -20dB
G = -20 to -58dB
Adiacent Attenuation Steps
From 0dB to A_MAX
Loud = ON
WIN = 11
WIN = 10
WIN = 01
WIN = 00
0dB to Mute
CCSM = 22nF; 0 to -20dB; I = IMAX
CCSM = 22nF; 0 to -20dB; I = IMIN
VCSM = 0V; I = IMAX
VCSM = 0V; I = IMIN
(note 2)
Soft Mute Active
70
2.1
80
2
-0.75
10.25
2.75
35
18.75
57.7
0.5
0.11
-1.25
-3
-3
35
17.5
0.5
80
0.7
20
25
1.5
35
3.5
100
2.6
100
0
11.25
3.75
2.3
1.5
3
50
20
59.7
1.25
0.31
0
0
0.5
50
18.75
1.25
20
40
80
160
100
0
60
1
35
50
1
2.5
50
130
0.75
12.25
4.75
10
21.25
62.7
2.0
0.51
1.25
2
2
3
5
65
20.0
2.0
3
1.7
55
75
3.5
65
1
KΩ
V_RMS
dB
KΩ
dB
dB
dB
µV
mV
mV
KΩ
dB
dB
dB
dB
dB
dB
dB
mV
mV
KΩ
dB
dB
mV
mV
mV
mV
dB
mV
dB
ms
ms
µA
µA
V
KΩ
V
V
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