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TDA7312 数据表(PDF) 5 Page - STMicroelectronics

部件名 TDA7312
功能描述  DIGITAL CONTROLLED STEREO AUDIO PROCESSOR
Download  13 Pages
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制造商  STMICROELECTRONICS [STMicroelectronics]
网页  http://www.st.com
标志 STMICROELECTRONICS - STMicroelectronics

TDA7312 数据表(HTML) 5 Page - STMicroelectronics

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ELECTRICAL CHARACTERISTICS (continued)
Symbol
Parameter
Test Condition
Min.
Typ.
Max.
Unit
AUDIO OUTPUTS
VOCL
Clipping Level
d = 0.3%
2
2.5
Vrms
RL
Output Load Resistance
2
K
CL
Output Load Capacitance
10
nF
ROUT
Output resistance
30
75
120
VOUT
DC Voltage Level
4.2
4.5
4.8
V
GENERAL
eNO
Output Noise
BW = 20-20KHz, flat
output muted
all gains = 0dB
2.5
515
µV
µV
A curve all gains = 0dB
3
µV
S/N
Signal to Noise Ratio
all gains = 0dB; VO = 1Vrms
106
dB
d
Distortion
AV =0,VIN = 1Vrms
AV = -20dB VIN = 1Vrms
VIN = 0.3Vrms
0.01
0.09
0.04
0.1
0.3
%
%
%
Sc
Channel Separation left/right
80
103
dB
Total Tracking error
AV = 0 to -20dB
-20 to -60 dB
0
0
1
2
dB
dB
BUS INPUTS
VIL
Input Low Voltage
1V
VIH
Input High Voltage
3
V
IIN
Input Current
-5
+5
µA
VO
Output Voltage SDA Acknowledge
IO = 1.6mA
0.4
V
ADDRESS PIN (Internal 50K
Ω pull down resistor).
Notes:
SDA, SCL, DIG OUT 1, DIG OUT 2 Pins are high impedance when VS =0
(1) Bass and Treble response see attached diagram (fig.16). The center frequency and quality of the resonance behaviour can be choosen by
the external circuitry. A standard first order bass response can be realized by a standard feedback network
(2) The selected input is grounded thru the 2.2
µF capacitor.
Figure 2: Signal to Noise Ratio vs. Volume
Setting
Figure 1: Noise vs. Volume/Gain Settings
TDA7312
5/13


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