參數(shù)資料
型號(hào): TDA7348D
廠商: 意法半導(dǎo)體
英文描述: DIGITALLY CONTROLLED AUDIO PROCESSOR
中文描述: 數(shù)控音頻處理器
文件頁(yè)數(shù): 4/14頁(yè)
文件大?。?/td> 193K
代理商: TDA7348D
ELECTRICALCHARACTERISTICS
(V
S
= 9V; R
L
= 10K
; R
g
= 50
; T
amb
= 25
°
C; all controlsflat
(G = 0.3dB step 0dB); f = 1KHz. Refer to the test circuit, unless otherwisespecified.)
Symbol
Parameter
Test Condition
Min.
Typ.
Max.
Unit
INPUT SELECTOR
R
I
V
CL
S
I
R
L
G
I MIN
G
I MAX
G
step
e
N
V
DC
Input Resistance
Clipping Level
Input Separation
Output Load Resistance
Minimum Input Gain
Maximum Input Gain
Step Resolution
Input Noise
DC Steps
70
2.1
80
2
-0.75
10.25
2.75
100
2.6
100
130
K
V
RMS
dB
K
dB
dB
dB
μ
V
mV
mV
d
0.3%
0
0.75
12.25
4.75
11.25
3.75
2.3
1.5
3
20Hz to 20 KHz unweighted
Adiacent Gain Steps
G
IMIN
to G
IMAX
10
VOLUMECONTROL (1 + 2)
R
I
Input Resistance
G
MAX
Maximum Gain
A
MAX
Maximum Attenuation
A
STEPC
Step Resolution Coarse
Attenuation
A
STEPF
Step Resolution Fine Attenuation
E
A
Attenuation Set Error
35
50
20
K
dB
dB
dB
18.75
21.25
78.45
1.25
0.5
2.0
(Only Volume 1)
G = 20 to -20dB
G = -20 to -58dB
0.11
-1.25
-3
0.31
0
0.51
1.25
2
2
3
5
dB
dB
dB
dB
mV
mV
E
t
V
DC
Tracking Error
DC Steps
Adiacent Attenuation Steps
From 0dB to A
MAX
-3
0
0.5
ZEROCROSSING MUTE
V
TH
Zero Crossing Threshold
(note 1)
WIN = 11
WIN = 10
WIN = 01
WIN = 00
20
40
80
160
100
0
mV
mV
mV
mV
dB
mV
A
MUTE
V
DC
Mute Attenuation
DC Step
80
0dB to Mute
3
SOFT MUTE
A
MUTE
T
DON
Mute Attenuation
ON Delay Time
45
0.7
20
25
60
1
35
50
1
2.5
50
dB
ms
ms
μ
A
μ
A
V
K
V
V
C
CSM
= 22nF; 0 to -20dB; I = I
MAX
C
CSM
= 22nF; 0 to -20dB; I = I
MIN
V
CSM
=0V; I = I
MAX
V
CSM
= 0V;I = I
MIN
1.7
55
75
T
DOFF
OFF Current
V
THSM
R
INT
V
SMH
V
SML
Soft Mute Threshold
Pullup Resistor (pin 22)
(pin 22) Level High
(pin 22) Level Low
1.5
35
3.5
3.5
65
(note 2)
Soft Mute Active
1
TDA7348
4/14
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