參數(shù)資料
型號: TDA7407
廠商: STMICROELECTRONICS
元件分類: 消費家電
英文描述: SPECIALTY CONSUMER CIRCUIT, PQFP44
封裝: 10 X 10 MM, 1.40 MM HEIGHT, LQFP-44
文件頁數(shù): 6/46頁
文件大小: 692K
代理商: TDA7407
Obsolete
Product(s)
- Obsolete
Product(s)
Stereo decoder part
TDA7407
3
Stereo decoder part
Table 6.
Stereo decoder electrical characteristics
(VS = 9V; de-emphasis time constant = 50μs,VMPX = 500mV (75KHz deviation),
fm= 1KHz, Gv = 6dB. Tamb = 25°C; unless otherwise specified)
Symbol
Parameter
Test condition
Min.
Typ.
Max.
Unit
Vin
MPX input level
Gv = 3.5dB
0.5
1.25
VRMS
Rin
Input resistance
70
100
130
K
Ω
GMIN
Min. 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 = 100mV; f = 1KHz
35
60
dB
α
Max. channel separation
30
50
dB
THD
Total harmonic distortion
0.02
0.3
%
Signal plus noise to noise
ratio
A-weighted, S = 2VRMS
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 Mono, PTH = 1
10
19
25
mV
PLL
Δf/f
Capture range
0.5
%
De-emphasis and highcut
tHC50
De-emphasis time constant
Bit 7, Subadr, 10 = 0,
VLEVEL >> VHCH
25
50
75
μs
tHC75
De-emphasis time constant
Bit 7, Subadr, 10 = 1,
VLEVEL >> VHCH
50
75
100
μs
tHC50
Highcut time constant
Bit 7, Subadr, 10 = 0,
VLEVEL >> VHCL
100
150
200
μs
tHC75
Highcut time constant
Bit 7, Subadr, 10 = 1,
VLEVEL >> VHCL
150
225
300
μs
Stereo blend and highcut 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
SN
+
N
--------------
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