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參數(shù)資料
| 型號(hào)： | TDA7421N |
| 廠(chǎng)商： | 意法半導(dǎo)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(chē)收音機(jī)及音響應(yīng)用 |
| 文件頁(yè)數(shù)： | 10/38頁(yè) |
| 文件大小： | 337K |
| 代理商： | TDA7421N |
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TDA7421N
10/38
Symbol
Parameter
Test Condition
Min.
Typ.
Max.
Unit
G
DEM
Demodulator Conversion Gain
V
FMLIMIN
> LS
2
mV
RMS
/
KHz
G
DEMADJ
Demodulator Adjustment
Conversion Gain
V
FMLIMIN
> LS
14
mV
RMS
/
KHz
CAdjDem
Value of the minimum adjusting
capacitance step
DEM6-0 set to 0000001
50
fF
FM Audio Amplifier
Ref: FM Test circuit, V
FMLIMIN
, = 95dB
μ
V, f
IN
= 10.7MHz; measure:
- MPX output at V
AUDIO
, BPF 200Hz to 15KHz, 50
μ
s de-emphasis.
- muting voltage at V
MUTE, DRIVE
V
MUTE
Mute Voltage
V
MUTE,DRIVE
for which
V
AF
= -11.5dB;
AUM1-0 set to 11
2
V
V
PLAY
Play Voltage
V
MUTE,DRIVE
for which
V
AF
= -1dB, AUM1-0 set to 11
0.3
V
G
AMPPLAY
Audio Amplifier Gain in Play
Conditions
V
MUTE,DRIVE
< V
PLAY
9
dB
MUTEATT
MIN
Minimum Mute Attenuation
V
MUTE,DRIVE
> V
MUTE
;
AUM1-0 set to 00
-5
dB
MUTEATT
MAX
Maximum Mute Attenuation
V
MUTE,DRIVE
> V
MUTE
;
AUM1-0 set to 11
-12.5
dB
V
AF
AF Output Level
f
DEV
= 75KHz, F
MOD
= 1KHz,
V
MUTE,DRIVE
< V
MUTE
400
mV
RMS
THD
AF Total Harmonic distortion
f
DEV = 40KHz, FMOD = 1KHz,
V
MUTE,DRIVE
< V
MUTE
0.3
%
S+N/N
AF Signal to Noise Ratio
f
DEV
= 40KHz, F
MOD
= 1KHz,
V
MUTE,DRIVE
< V
MUTE
80
dB
AMR
Amplitude Modulation Rejection
AM modulation depht 30%,
f
MOD
= 1KHz, with respect to FM
modulated signal with f
DEV
=
40KHz, V
MUTE,DRIVE
< V
MUTE
67
dB
AUDIO
curr
Output Current Capability
5
mA
MUTE R
out
Mute Drive Output Resistance
1
K
FM QUALITY DETECTORS
Field Strength Detector
Ref: FM Test Circuit, HDDIS and BWDIS set to 1, measure:
- Input at V
FMLIMIN
, f
IN
= 10.7MHz, CW
- output at V
MUTE,DRIVE
FSD
MIN
Field Strength Detector
Minimum Threshold
V
FMLIMIN
level at which
V
MUTE,DRIVE
= V
MUTE
, FSM3-0
set to 0000
dB
μ
V
ELECTRICAL CHARACTERISTICS
(Continued)
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相關(guān)代理商/技術(shù)參數(shù) |
參數(shù)描述 |
|---|---|
| TDA7427 | 制造商:STMICROELECTRONICS 制造商全稱(chēng):STMicroelectronics 功能描述:AM-FM RADIO FREQUENCY SYNTHESIZER AND IF COUNTER |
| TDA7427A | 制造商:STMICROELECTRONICS 制造商全稱(chēng):STMicroelectronics 功能描述:AM-FM RADIO FREQUENCY SYNTHESIZER AND IF COUNTER |
| TDA7427AAD | 制造商:STMICROELECTRONICS 制造商全稱(chēng):STMicroelectronics 功能描述:AM-FM RADIO FREQUENCY SYNTHESIZER AND IF COUNTER |
| TDA7427AAD1 | 制造商:STMICROELECTRONICS 制造商全稱(chēng):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(fēng)格: 封裝 / 箱體: 封裝:Tube |
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