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TDA7461N 数据表(PDF) 4 Page - STMicroelectronics

部件名 TDA7461N
功能描述  CAR RADIO SIGNAL PROCESSOR
PDF  31 Pages
Scroll/Zoom Zoom In 100%  Zoom Out
制造商  STMICROELECTRONICS [STMicroelectronics]
网页  http://www.st.com
标志 STMICROELECTRONICS - STMicroelectronics

TDA7461N 数据表(HTML) 4 Page - STMicroelectronics

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AUDIO PROCESSOR PART
Input Multiplexer
Fully differential or quasi-differential CD and
cassette stereo input
AM mono or stereo input
Phone differential or single ended input
Internal beep with 2 frequencies (selectable)
Mixable phone and beep signals
Loudness
Second order frequency response
Programmable center frequency and quality factor
15 x 1dB steps
Selectable flat-mode (constant attenuation)
Volume control
1dB attenuator
Max. gain 20dB
Max. attenuation 79dB
Soft-step gain control
Bass Control
2nd order frequency response
Center frequency programmable in 4(5) steps
DC gain programmable
7 x 2dB steps
Treble Control
2nd order frequency response
Center frequency programmable in 4 steps
7 x 2dB steps
Speaker Control
4 independent speaker controls (1dB steps
control range 50dB)
Mute Functions
Direct mute
Digitally controlled softmute with 4 program-
mable time constants
ELECTRICAL CHARACTERISTICS (VS = 9V; Tamb =25
°C; RL = 10KΩ; all gains = 0dB; f = 1KHz;
unless otherwise specified).
Symbol
Parameter
Test Condition
Min.
Typ.
Max.
Unit
INPUT SELECTOR
Rin
Input Resistance
all inputs except Phone
70
100
130
K
Ω
VCL
Clipping Level
2.2
2.6
VRMS
SIN
Input Separation
80
100
dB
GIN MIN
Min. Input Gain
-1
0
1
dB
GIN MAX
Max. Input Gain
13
14
15
dB
GSTEP
Step Resolution
1
2
3
dB
VDC
DC Steps
Adjacent Gain Step
-5
0
+5
mV
GMIN to GMAX
-5
1
+5
mV
DIFFERENTIAL CD STEREO INPUT
Rin
Input Resistance
Differential
70
100
130
K
Ω
Common Mode
20
30
40
K
Ω
CMRR
Common Mode Rejection Ratio
VCM =1VRMS @ 1KHz
45
70
dB
VCM =1VRMS @ 10KHz
45
60
dB
eN
Output Noise @ Speaker
Output
20Hz to 20KHz flat; all stages
0dB
915
µV
DIFFERENTIAL PHONE INPUT
Rin
Input Resistance
Differential
10
15
20
K
Ω
Common Mode
20
30
40
K
Ω
CMRR
Common Mode Rejection Ratio
VCM =1VRMS @ 1KHz
45
70
dB
VCM =1VRMS @ 10KHz
45
60
dB
TDA7461N
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