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| 型號(hào)： | TDA7460ND |
| 廠商： | STMICROELECTRONICS |
| 元件分類： | 消費(fèi)家電 |
| 英文描述： | SPECIALTY CONSUMER CIRCUIT, PDSO20 |
| 封裝： | ROHS COMPLIANT, SOP-20 |
| 文件頁(yè)數(shù)： | 14/49頁(yè) |
| 文件大?。?/td> | 473K |
| 代理商： | TDA7460ND |
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TDA7460ND
Stereo decoder part
5
Stereo decoder part
5.1
Stereo decoder feature
●
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 soft mute
●
High cut and stereo blend characteristics programmable in a wide range
●
Internal noise blanker with threshold controls
●
Multipath detector with programmable internal/external influence
●
I2C bus control of all necessary functions
5.2
Stereo decoder electrical characteristics
.
Table 8.
Stereo decoder electrical characteristics
(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
VIN
MPX input level
Input gain = 3.5 dB
0.5
1.25
VRMS
Rin
Input resistance
70
100
130
k
Ω
Gmin
Minimum input gain
1.5
3.5
4.5
dB
Gmax
Max input gain
8.5
11
12.5
dB
GSTEP
Step resolution
1.75
2.5
3.25
dB
SVRR
Supply voltage ripple rejection
Vripple = 100 mv, f = 1 kHz
55
dB
a
Max channel separation
30
50
dB
THD
Total harmonic distortion
0.02
0.3
%
Signal plus noise to noise ratio
S = 2 Vrms
80
91
dB
Mono/stereo switch
VPTHST1
Pilot threshold voltage
for stereo, PTH = 1
10
15
25
mV
VPTHST0
Pilot threshold voltage
for stereo, PTH = 0
15
25
35
mV
VPTHMO1
Pilot threshold voltage
for mono, PTH = 1
7
12
17
mV
VPTHMO0
Pilot threshold voltage
for stereo, PTH = 0
10
19
25
mV
PLL
Δf/f
Capture range
0.5
%
SN
+
N
--------------
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