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TDA7580 数据表(PDF) 17 Page - STMicroelectronics

部件名 TDA7580
功能描述  FM/AM digital IF sampling processor
PDF  39 Pages
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制造商  STMICROELECTRONICS [STMicroelectronics]
网页  http://www.st.com
标志 STMICROELECTRONICS - STMicroelectronics

TDA7580 数据表(HTML) 17 Page - STMicroelectronics

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TDA7580
Block diagram and electrical specifications
17/39
MCK = 18.525MHz, Fsin/Fsout = 0.820445366
Table 13.
DSP core (Tj =-40°C to 125°C)
Symbol
Parameter
Test condition
Min.
Typ.
Max.
Unit
FdspMax
Maximum DSP clock frequency
VDD=1.7V, VDD3= 3.3V
81.5
MHz
Table 14.
FM stereo decoder characteristics
(Tj =-40°C to 125°C; VDD =1.7V to 1.9V, VDD3 = 3.15V to 3.45V; BW for measurements
20Hz to 15KHz)
Symbol
Parameter
Test condition
Min.
Typ.
Max.
Unit
a_ch
Channel separation
(Adjustble by SW from 0 to -45dB)
-45
0
dB
THD
Total harmonic distortion
1KHz; mono;
Δf=75KHz;
0.02
0.04
%
(S+N)/N Signal plus noise to noise ratio
1KHz; mono;
Δf=40KHz;
78
80
82
dB
Table 15.
Sample rate converter
(Tj =-40°C to 125°C; VDD =1.7V to 1.9V, VDD3 = 3.15V to 3.45V);
BW for measurements 20Hz to 20KHz
Symbol
Parameter
Test condition
Min.
Typ.
Max.
Unit
THD+N
Total harmonic distortion + noise
20Hz to 20kHz, full scale, 16 bit inp.
-95
-92
dB
20Hz to 20kHz, full scale, 20 bit inp.
-98
-95
dB
1 kHz full scale, 16 bit inp.
-98
-95
dB
2 kHz full scale, 16 bit inp.
-98
-95
dB
5 kHz full scale, 16 bit inp.
-98
-95
dB
10 kHz full scale, 16 bit inp
-98
-95
dB
15 kHz full scale, 16 bit inp
-98
-95
dB
1 kHz full scale, 20 bit inp.
-119
-116
dB
2 kHz full scale, 20 bit inp.
-116
-113
dB
5 kHz full scale, 20 bit inp.
-112
-109
dB
10 kHz full scale, 20 bit inp
-108
-105
dB
15 kHz full scale, 20 bit inp
-105
-102
dB
DR
Dynamic Range
1 kHz -60 dB - 16 bit inp. A-weighted
97
100
dB
fratio = 0.82
1 kHz -60 dB - 24 bit inp. A-weighted
141
145
dB
Rp
Pass band ripple
from 20Hz to 15kHz
0.4
0.5
dB
Fratio
Sampling frequency in/out ratio
Fsout = 44.1 kHz
0.7
1.13



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