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參數(shù)資料
| 型號： | STV2248 |
| 元件分類： | 參考電壓二極管 |
| 英文描述： | Low Current Operation at 250 ，Low Reverse Leakage,Low Noise Zener Diode |
| 中文描述： | 250 的低電流運算，低反向泄露，低噪聲穩(wěn)壓二極管 |
| 文件頁數(shù)： | 26/76頁 |
| 文件大?。?/td> | 2157K |
| 代理商： | STV2248 |
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STV223XD/224XC - ELECTRICAL CHARACTERISTICS
26/76
AM DEMODULATOR
SIF OUTPUT (AM/FM OR SOUND SUBCARRIERS OUTPUT)
SAW FILTER SWITCH OUTPUT
EXTERNAL AUDIO INPUT
MAIN AUDIO OUTPUT
(See
Figure 17
and
Figure 18
)
Symbol
Parameter
Test Conditions
Min.
Typ
Max.
Unit
AFOUT
AM Audio Output Amplitude at AM/
FMOUT Pin
Low Cut-off Frequency
High Cut-off Frequency
Total Harmonic Distortion
54% modulation
400
500
630
mV
RMS
AMlowco
AMhighco
AMthd
-3 dB compared AFout
-3 dB compared AFout
54% modulation
Weighted according to CCIR468-4
Quasi-Peak
See Note 4
40
Hz
kHz
%
30
2
AMs/n
Signal/Noise Ratio
55
dB
AMsvr
Supply Voltage Rejection
20
dB
Symbol
SIFout
SIFbw
SIF dcout
Parameter
Test Conditions
Min.
Typ
150
Max.
Unit
mV
RMS
MHz
V
Output Level
Bandwidth
DC Output Level
Sound subcarriers
Sound subcarriers
7.5
4
SIFres
Residual Carrier
Fundamental wave (38.9 MHz) and
harmonics
AM or FM demod. output selected
Sound subcarriers output selected
0.4
mV
RMS
SIFcur
Sink Output Current
0.5
1.5
mA
Symbol
SAW low
SAWcur
SAW high
Parameter
Test Conditions
Min.
Typ
Max.
0.4
2
Unit
V
mA
V
Low Output Voltage
Maximum allowed Current
High Output Voltage
I
SINK
= 2 mA
I
SOURCE
= 2 mA
4
Symbol
R
IN
V
IDC
AFIN
Parameter
Test Conditions
Min.
70
Typ
100
2.4
Max.
130
Unit
k
V
V
RMS
Input Resistance
DC Input Voltage
maximum Audio Input Signal
2
Symbol
Parameter
Test Conditions
Min.
Typ
Max.
Unit
AMax
Maximum Attenuation (Audio Out/
AM-FM Out)
Minimum Attenuation (Audio Out/
AM-FM Out)
Step Resolution
DC Output Shift
DC Output Level
Register 05hex, data = 7Fhex
78
dB
AMin
V
IN
= 1 V
RMS,
f = 1 kHz,
Register 05hex, data = 00hex
reg 05, d7 = 0
From max. volume to min. volume
-1
0
1
dB
ASTEP
DCSH
V
ODC
0.7
dB
mV
V
50
4
AFDIFF
Audio Amplitude difference
between sources
f = 1 kHz, f
M
= ±27 kHz,
Ext. Audio Input = 500 mV
RMS
2
dB
R
OUT
BWO
THD_AM
Output Resistance
Output Bandwidth
Total Harmonic Distortion
110
1
MHz
%
V
IN
= 1 V
RMS,
f = 1 kHz
Measured at 0 dB attenuation,
Ext. Audio Input at 500 mV
RMS,
CCIR 468-4 Weighted Quasi Peak
0.1
0.3
S/N1
Signal to Noise Ratio from Exter-
nal Input
75
dB
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相關(guān)代理商/技術(shù)參數(shù) |
參數(shù)描述 |
|---|---|
| STV2248C | 制造商:STMICROELECTRONICS 制造商全稱:STMicroelectronics 功能描述:I2C BUS-CONTROLLED MULTISTANDARD SINGLE CHIP TV PROCESSOR |
| STV2248H | 制造商:STMICROELECTRONICS 制造商全稱:STMicroelectronics 功能描述:IC BUS-CONTROLLED MULTISTANDARD SINGLE CHIP TV PROCESSOR |
| STV2249 | 制造商:未知廠家 制造商全稱:未知廠家 功能描述:I%B2C BUS-CONTROLLED MULTISTANDARD SINGLE CHIP TV PROCESSOR |
| STV2249C | 制造商:STMICROELECTRONICS 制造商全稱:STMicroelectronics 功能描述:I2C BUS-CONTROLLED MULTISTANDARD SINGLE CHIP TV PROCESSOR |
| STV2249H | 制造商:STMICROELECTRONICS 制造商全稱:STMicroelectronics 功能描述:IC BUS-CONTROLLED MULTISTANDARD SINGLE CHIP TV PROCESSOR |
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