TDA7343 データシートの表示（PDF） - STMicroelectronics
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TDA7343 Datasheet PDF : 14 Pages
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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
RI
Input Resistance
VCL
Clipping Level
SI
Input Separation
RL
Output Load Resistance
GI MIN
GI MAX
Minimum Input Gain
Maximum Input Gain
Gstep
Step Resolution
eN
Input Noise
VDC
DC Steps
VOLUME CONTROL
RI
GMAX
Input Resistance
Maximum Gain
AMAX
Maximum Attenuation
ASTEPC
Step Resolution Coarse
Attenuation
ASTEPF Step Resolution Fine Attenuation
EA
Attenuation Set Error
Et
Tracking Error
VDC
DC Steps
LOUDNESS CONTROL
RI
Internal Resistor
AMAX
Maximum Attenuation
Astep
Step Resolution
ZERO CROSSING MUTE
VTH
Zero Crossing Threshold
(note 1)
AMUTE
VDC
Mute Attenuation
DC Step
SOFT MUTE
AMUTE
TDON
Mute Attenuation
ON Delay Time
TDOFF
OFF Delay Time
VTHSM
RINT
VSMH
VSML
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
GIMIN to GIMAX
G = 20 to -20dB
G = -20 to -58dB
Adiacent Attenuation Steps
From 0dB to AMAX
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
VRMS
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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