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参数资料
| 型号： | TDA7705TR |
| 厂商： | STMICROELECTRONICS |
| 元件分类： | 接收器 |
| 英文描述： | AUDIO/VIDEO DEMODULATOR, PQFP64 |
| 封装： | 10 X 10 MM, 1.40 MM HEIGHT, ROHS COMPLIANT, LQFP-64 |
| 文件页数： | 16/42页 |
| 文件大小： | 396K |
| 代理商： | TDA7705TR |
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TDA7705
Electrical specifications
Doc ID 15938 Rev 8
3.5
Overall system performance
All measurements obtained with application of Figure 16 (FM tuned application / SPI
control) unless otherwise specified.
3.5.1
FM overall system performance
Antenna level equivalence: 0 dBV = 1 Vrms (Antenna terminal voltage with 50 Ω source).
Figure 10.
FM input set-up
Input level referred to signal generator loaded with 50
Ω (V
rf, node 'A'); no antenna dummy;
AM input not connected. Frf = 98.1 MHz, Vrf = 60 dBV, mono modulation, fdev = 40 kHz,
faudio = 1 kHz. De-emphasis = 50 s. Unless otherwise specified
Table 17.
FM overall system performance
Parameter
Test condition
Min
Typ
Max
Units
Tuning range FM Eu
(can be modified by the user)
(automatic FE alignment
available)
87.5
-
108
MHz
Tuning step FM Eu
(can be modified by the user)
-
100
-
kHz
Tuning range FM US
(can be modified by the user)
(automatic FE alignment
available)
87.5
-
107.9
MHz
Tuning step FM US
(can be modified by the user)
-
200
-
kHz
Tuning range FM Jp
(can be modified by the user)
(automatic FE alignment
available)
76
-
90
MHz
Tuning step FM Jp
(can be modified by the user)
-
100
-
kHz
Tuning range FM EEu
(can be modified by the user)
(automatic FE alignment not
available)
65
-
74
MHz
Tuning step FM EEu
(can be modified by the user)
-
100
-
kHz
Sensitivity
S/N =26dB
-
-7
-4
dBV
S/N
@ 10 dBV, no highcut, DISS
BW = #3
-55
-
dB
Ultimate S/N
@ 60 dBV, mono
72
75
-
dB
@ 60 dBV,
Deviation = 75 kHz, mono
78
81
-
dB
@ 60 dBV, stereo
70
73
-
dB
Vrf + 6dB
PCB
UNDER
TEST
50
Ω
Vrf + 6dB
Vrf
50
Ω
50
Ω
A
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