参数资料
型号: TDA7461ND
厂商: STMICROELECTRONICS
元件分类: 消费家电
英文描述: SPECIALTY CONSUMER CIRCUIT, PDSO28
封装: SOP-28
文件页数: 14/48页
文件大小: 437K
代理商: TDA7461ND
TDA7461
Stereo decoder part
De-emphasis and high cut (1)
τHC50
De-emphasis time constant
Bit = 7, Subadr. 10 = 0
VLEVEL >> VHCH
25
50
75
μs
τHC75
De-emphasis time constant
Bit = 7, Subadr. 10 = 1
VLEVEL >> VHCH
50
75
100
μs
τHC50
High cut time constant
Bit = 7, Subadr. 10 = 0
VLEVEL >> VHCL
100
150
200
μs
τHC75
High cut time constant
Bit = 7, Subadr. 10 = 1
VLEVEL >> VHCL
150
225
300
μs
Stereo blend and high cut-control
REF5V
Internal reference voltage
4.7
5
5.3
V
TCREF5V
Temperature coefficient
3300
ppm
LGmin
Min. level gain
-1
0
+1
dB
LGmax
Max. level gain
8
10
12
dB
LGstep
Level gain step resolution
0.3
0.67
1.0
dB
VSBLmin
Min. voltage for mono
29
33
37
%REF5V
VSBLmax
Max. voltage for mono
54
58
62
%REF5V
VSBLstep
Step resolution
5.0
8.4
12
%REF5V
VHCHmin
Min.voltage for no high cut
36
42
46
%REF5V
VHCHmax
Max. voltage for no high cut
62
66
70
%REF5V
VHCHstep
Step resolution
5
8.4
12
%REF5V
VHCLmin
Min. voltage for full high cut
13
17
21
%VHCH
VHCLmax
Max. voltage for full high cut
29
33
37
%VHCH
Carrier and harmonic suppression at the output
α19
Pilot signal
f = 19 kHz
40
50
dB
α38
Sub carrier
f = 38 kHz
75
dB
α57
Sub carrier
f = 57 kHz
62
dB
α76
Sub carrier
f = 76 kHz
90
dB
Intermodulation (2))
α2
Pilot signal
fmod = 10 kHz
fspur = 1 kHz;
65
dB
α3
fmod = 13 kHz;
fspur = 1 kHz;
75
dB
Table 8.
Stereo decoder electrical characteristics (continued)
(VS = 9 V; de-emphasis time constant = 50 μs, VMPX = 500 mV, 75 kHz deviation, f = 1 kHz.
GI = 6 dB, Tamb = 25 °C; unless otherwise specified)
Symbol
Parameter
Test condition
Min.
Typ.
Max.
Unit
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