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TDA7461ND Datasheet

  • TDA7461ND

  • CAR RADIO SIGNAL PROCESSOR

  • 31頁

  • STMICROELECTRONICS   STMICROELECTRONICS

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TDA7461N
STEREODECODER PART
No external components necessary
PLL with adjustment free fully integrated VCO
Automatic pilot dependent MONO/STEREO
switching
Very high suppression of intermodulation and
interference
Programmable Roll-Off compensation
Dedicated RDS Softmute
Highcut and Stereoblend characterisctics pro-
grammable in a wide range
Internal Noiseblanker with threshold controls
Multipath detector with programmable inter-
nal/external influence
I
2
C bus control of all necessary functions
ELECTRICAL CHARACTERISTICS
(V
S
= 9V; deemphasis time constant = 50碌s, V
MPX
= 500mV,
75KHz deviation, f = 1KHz. G
I
= 6dB, T
amb
= 25擄C; unless otherwise specified).
Symbol
V
IN
R
in
G
min
G
max
G
STEP
SVRR
偽
THD
S
+
N
N
Parameter
MPX Input Level
Input Resistance
Minimum Input Gain
Max Input Gain
Step Resolution
Supply Voltage Ripple Rejection
Max Channel Separation
Total Harmonic Distortion
Signal plus Noise to Noise Ratio
Test Condition
Input Gain = 3.5dB
70
1.5
8.5
1.75
V
ripple
= 100mv, f = 1khz
30
S = 2V
rms
80
Min.
Typ.
0.5
100
3.5
11
2.5
55
50
0.02
91
Max.
1.25
130
4.5
12.5
3.25
Unit
V
RMS
K
鈩?/div>
dB
dB
dB
dB
dB
%
dB
0.3
MONO/STEREO SWITCH
V
PTHST1
V
PTHST0
V
PTHMO1
V
PTHMO0
Pilot Threshold Voltage
Pilot Threshold Voltage
Pilot Threshold Voltage
Pilot Threshold Voltage
for Stereo, PTH = 1
for Stereo, PTH = 0
for Mono, PTH = 1
for Stereo, PTH = 0
10
15
7
10
15
25
12
19
25
35
17
25
mV
mV
mV
mV
PLL
鈭唂/f
蟿
HC50
蟿
HC75
蟿
HC50
蟿
HC75
Capture Range
0.5
%
碌
s
碌
s
碌
s
碌
s
DEEMPHASIS and HIGHCUT (5)
Deemphasis Time Constant
Deemphasis Time Constant
Highcut Time Constant
Highcut Time Constant
Bit = 7, Subadr. 10 =
V
LEVEL
>> V
HCH
Bit = 7, Subadr. 10 =
VLEVEL >> V
HCH
Bit = 7, Subadr. 10 =
VLEVEL >> V
HCL
Bit = 7, Subadr. 10 =
VLEVEL >> V
HCL
0
1
0
1
25
50
100
150
50
75
150
225
75
100
200
300
STEREOBLEND and HIGHCUT-CONTROL
REF5V
TC
REF5V
L
Gmin
L
Gmax
L
Gstep
VSBL
min
VSBL
max
VSBL
step
Internal Reference Voltage
Temperature Coefficient
Min. LEVEL Gain
Max. LEVEL Gain
LEVEL Gain Step Resolution
Min.Voltage for Mono
Max. Voltage for Mono
Step Resolution
4.7
-1
8
0.3
29
54
5.0
5
3300
0
10
0.67
33
58
8.4
5.3
+1
12
1.0
37
62
12
V
ppm
dB
dB
dB
%REF5V
%REF5V
%REF5V
12/31

TDA7461ND 產(chǎn)品屬性

  • 28

  • 集成電路 (IC)

  • 線性 - 音頻處理

  • -

  • 汽車信號處理器

  • 車載系統(tǒng)

  • 表面貼裝

  • 28-SOIC（0.295"，7.50mm 寬）

  • 28-SO

  • 管件

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