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參數(shù)資料
| 型號(hào)： | TDA7403DTR |
| 廠商： | STMICROELECTRONICS |
| 元件分類： | 消費(fèi)家電 |
| 英文描述： | SPECIALTY CONSUMER CIRCUIT, PDSO20 |
| 封裝： | SO-20 |
| 文件頁數(shù)： | 20/25頁 |
| 文件大小： | 232K |
| 代理商： | TDA7403DTR |
AUDIO PROCESSOR PART
Input Multiplexer
MPX input
Cassette stereo input
AM mono
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 driven by pin SM
Digitally controlled softmute with 4 program-
mable time constants
ELECTRICAL CHARACTERISTICS (VS = 9V; Tamb = 25°C; RL = 10K
; 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
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
14
dB
GSTEP
Step Resolution
2
dB
VDC
DC Steps
Adjacent Gain Step
0
mV
GMIN to GMAX
1mV
VOLUME CONTROL
GMAX
Max Gain
20
dB
AMAX
Max Attenuation
79
dB
ASTEP
Step Resolution
1
dB
EA
Attenuation Set Error
G = -20 to 20dB
-1.25
0
1.25
dB
G = -60 to 20dB
-4
0
3
dB
ET
Tracking Error
2dB
VDC
DC Steps
Adjacent Attenuation Steps
0.1
3
mV
From 0dB to GMIN
0.5
5
mV
SOFT MUTE
AMUTE
Mute Attenuation
70
100
dB
TD
Delay Time
T1
0.48
ms
T2
0.96
ms
T3
40.4
ms
T4
324
ms
VTHlow
Low Threshold for SM Pin
(1)
1V
VTHhigh
High Threshold for SM Pin
2.5
V
RPU
Internal Pull-up Resistor
70
100
130
K
VPU
Pull-up Voltage
4.7
V
TDA7403
4/25
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