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參數(shù)資料
| 型號： | TDA7421N |
| 廠商： | 意法半導體 |
| 英文描述： | AM/FM TUNER FOR CAR RADIO AND HI-FI APPLICATIONS |
| 中文描述： | AM / FM調(diào)諧的汽車收音機及音響應用 |
| 文件頁數(shù)： | 11/38頁 |
| 文件大?。?/td> | 337K |
| 代理商： | TDA7421N |
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TDA7421N
Symbol
Parameter
Test Condition
Min.
Typ.
Max.
Unit
FSD
MAX
Field Strength Detector
Maximum Threshold
V
FMLIMIN
level at which
V
MUTE,DRIVE
= V
MUTE
, FSM3-0
set to 1111
67.5
dB
μ
V
Detuning Detector
Ref: FM Test Circuit; HDDIS and SMDIS set to 1, measure:
- Input at V
FMLIMIN
, CW
- output at V
MUTE,DRIVE
DD
START
Detuning Detector Starting Point
frequency shift from 10.7MHz at
which V
MUTE,DRIVE
= V
PLAY
±23
KHz
DD
SLOPE,MIN
Detuning Detector Minimum
Muting Slope
frequency shift from 10.7MHz +
DD
START
at which
V
MUTE,DRIVE
= V
MUTE
,
BWM2-0 set to 100, SEEK set to 0
30
KHz
DD
SLOPE,MAX
Detuning Detector Maximum
Muting Slope
frequency shift from 10.7MHz +
DD
START
at which
V
MUTE,DRIVE
= V
MUTE
,
BWM2-0 set to 001, SEEK set to 0
10
KHz
DD
TRC
Detuning Detector Time
Constant Ratio
ratio of "reception" mode
integration time constant inside
the Detuning Detector with
respect to "seek" mode
34/6
s/s
Adjacent Channel Detector
Ref: FM Test Circuit; BWDIS and SMDIS set to 1, measure:
- Input at V
FMLIMIN
: desired 10.7MHz, 95dB
μ
V CW; undesired 10.8MHz CW
- output at V
MUTE,DRIVE
ACD
MAX
Adjacent Channel Quality
Detector Maximum Sensitivity
Threshold
amplitude of undesired signal at
which V
MUTE,DRIVE
= V
MUTE
,
HDM4-0 set to 11111
91
dBu
ACD
MIN
Adjacent Channel Quality
Detector Minimum Sensitivity
Threshold
amplitude of undesired signal at
which V
MUTE,DRIVE
= V
PLAY
,
HDM4-0 set to 00000
94.8
dBu
Field Strength Station Detector
Ref: FM Test Circuit; SEEK set to 1, HDDIS and BWDIS set to 1, measure:
- Input at V
FMLIMIN
: desired 10.7MHz, CW
- output at V
FMSD
FSSD
MIN
Field Strength Station Detector
Minimum Threshold
V
FMLIMIN
level at which
V
FMSD
= 2.5V;
FSS4-0 set to 00000
dB
μ
V
FSSD
MAX
Field Strength Station Detector
Maximum Threshold
V
FMLIMIN
level at which
V
FMSD
= 2.5V;
FSS4-0 set to 11111
dB
μ
V
ELECTRICAL CHARACTERISTICS
(Continued)
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PDF描述 |
|---|---|
| TDA7421 | AM/FM TUNER FOR CAR RADIO AND Hi-Fi APPLICATIONS |
| TDA7427A | AM-FM RADIO FREQUENCY SYNTHESIZER AND IF COUNTER |
| TDA7427AAD | AM-FM RADIO FREQUENCY SYNTHESIZER AND IF COUNTER |
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相關代理商/技術參數(shù) |
參數(shù)描述 |
|---|---|
| TDA7427 | 制造商:STMICROELECTRONICS 制造商全稱:STMicroelectronics 功能描述:AM-FM RADIO FREQUENCY SYNTHESIZER AND IF COUNTER |
| TDA7427A | 制造商:STMICROELECTRONICS 制造商全稱:STMicroelectronics 功能描述:AM-FM RADIO FREQUENCY SYNTHESIZER AND IF COUNTER |
| TDA7427AAD | 制造商:STMICROELECTRONICS 制造商全稱:STMicroelectronics 功能描述:AM-FM RADIO FREQUENCY SYNTHESIZER AND IF COUNTER |
| TDA7427AAD1 | 制造商:STMICROELECTRONICS 制造商全稱:STMicroelectronics 功能描述:AM-FM RADIO FREQUENCY SYNTHESIZER AND IF COUNTER |
| TDA7427AD1 | 功能描述:音頻 DSP AM/FM Radio Freq Syn RoHS:否 制造商:Texas Instruments 工作電源電壓: 電源電流: 工作溫度范圍: 安裝風格: 封裝 / 箱體: 封裝:Tube |
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