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參數(shù)資料
| 型號： | TDA7342 |
| 廠商： | STMICROELECTRONICS |
| 元件分類： | 音頻控制 |
| 英文描述： | 2 CHANNEL(S), TONE CONTROL CIRCUIT, PQFP32 |
| 封裝： | TQFP-32 |
| 文件頁數(shù)： | 9/14頁 |
| 文件大?。?/td> | 316K |
| 代理商： | TDA7342 |
ELECTRICAL CHARACTERISTICS (VS = 9V; RL = 10K
; Rg = 50; Tamb = 25°C; all gains = 0dB;
f = 1KHz. Refer to the test circuit, unless otherwise specified.)
Symbol
Parameter
Test Condition
Min.
Typ.
Max.
Unit
INPUT SELECTOR
RI
Input Resistance
70
100
130
K
VCL
Clipping Level
d
≤ 0.3%
2.1
2.6
VRMS
SI
Input Separation
80
100
dB
RL
Output Load Resistance
2
K
GI MIN
Minimum Input Gain
-0.75
0
0.75
dB
GI MAX
Maximum Input Gain
10.25
11.25
12.25
dB
Gstep
Step Resolution
2.75
3.75
4.75
dB
eN
Input Noise
20Hz to 20 KHz unweighted
2.3
V
VDC
DC Steps
Adiacent Gain Steps
1.5
10
mV
GIIN to GIMAX
3mV
DIFFERENTIAL INPUT ( IN 3)
RI
Input Resistance
Input selector BIT D6 = 0 (0dB)
10
15
20
K
Input selector BIT D6 = 1(-6dB)
14
20
30
K
CMRR
Common Mode Rejection Ratio
VCM = 1VRMS ;
f =1KHz
48
75
dB
f = 10KHz
45
70
dB
d
Distortion
VI = 1VRMS
0.01
0.08
%
eIN
Input Noise
20Hz to 20KHz; Flat; D6 = 0
5
V
GDIFF
Differential Gain
D6 = 0
-1
0
1
dB
D6 = 1
-7-6-5
dB
VOLUME CONTROL
RI
Input Resistance
35
50
K
GMAX
Maximum Gain
18.75
20
21.25
dB
AMAX
Maximum Attenuation
57.7
59.7
62.7
dB
ASTEPC
Step Resolution Coarse Atten.
0.5
1.25
2.0
dB
ASTEPF
Step Resolution Fine Attenuation
0.11
0.31
0.51
dB
EA
Attenuation Set Error
G = 20 to -20dB
-1.25
0
1.25
dB
G = -20 to -58dB
-3
2
dB
Et
Tracking Error
2dB
VDC
DC Steps
Adiacent Attenuation Steps
-3
0
3
mV
From 0dB to AMAX
0.5
5
mV
LOUDNESS CONTROL
RI
Internal Resistor
Loud = On
35
50
65
K
AMAX
Maximum Attenuation
17.5
18.75
20.0
dB
Astep
Step Resolution
0.5
1.25
2.0
dB
TDA7342
4/14
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