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參數(shù)資料
| 型號： | TDA7348 |
| 廠商： | STMICROELECTRONICS |
| 元件分類： | 音頻控制 |
| 英文描述： | 2 CHANNEL(S), TONE CONTROL CIRCUIT, PDIP28 |
| 封裝： | DIP-28 |
| 文件頁數(shù)： | 10/14頁 |
| 文件大?。?/td> | 357K |
| 代理商： | TDA7348 |
ELECTRICAL CHARACTERISTICS (continued)
Symbol
Parameter
Test Condition
Min.
Typ.
Max.
Unit
BASS CONTROL
BBOOST
Max Bass Boost
15
18
20
dB
B
Max Bass Cut
-8.5
-10
-11.5
dB
Astep
Step Resolution
1
2
3
dB
Rg
Internal Feedback Resistance
45
65
85
K
TREBLE CONTROL
CRANGE
Control Range
±13
±14
±15
dB
Astep
Step Resolution
1
2
3
dB
SPEAKER ATTENUATORS
CRANGE
Control Range
35
37.5
40
dB
Astep
Step Resolution
0.5
1.25
2.0
dB
AMUTE
Output Mute Attenuation
Data Word = XXX11111
80
100
dB
EA
Attenuation Set Error
1.25
dB
VDC
DC Steps
Adjacent Attenuation Steps
0
3
mV
AUDIO OUTPUT
Vclip
Clipping Level
d = 0.3%
2.1
2.6
Vrms
RL
Output Load Resistance
2
K
RO
Output Impedance
30
100
VDC
DC Voltage Level
3.5
3.8
4.1
V
GENERAL
VCC
Supply Voltage
6
9
10.2
V
ICC
Supply Current
10
15
mA
PSRR
Power Supply Rejection Ratio
f = 1KHz
60
80
dB
B = 20 to 20kHz "A" weighted
65
dB
eNO
Output Noise
Output Muted (B = 20 to 20kHz flat)
2.5
V
All Gains 0dB (B = 20 to 20kHz
flat)
515
V
Et
Total Tracking Error
AV = 0 to -20dB
0
1
dB
AV = -20 to -60dB
0
2
dB
S/N
Signal to Noise Ratio
All Gains = 0dB; VO = 1Vrms
106
dB
SC
Channel Separation
80
100
dB
d
Distortion
VIN = 1V
0.01
0.08
%
BUS INPUTS
VIL
Input Low Voltage
1
V
VlN
Input High Voltage
3
V
IlN
Input Current
VIN = 0.4V
-5
5
A
VO
Output Voltage SDA
Acknowledge
IO = 1.6mA
0.4
0.8
V
Note 1: WIN represents the MUTE programming bit pair D6, D5 for the zero crossing window threshold
Note 2: Internal pullup resistor to Vs/2; "LOW" = softmute active
r
TDA7348
5/14
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