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參數(shù)資料
| 型號： | S1A0427B01-D0B0 |
| 廠商： | SAMSUNG SEMICONDUCTOR CO. LTD. |
| 英文描述： | Series 942 Separate control box, 1500 mm [59.0 in] scan distance, two analog outputs (0 Vdc to 10 Vdc and 4 mA to 20 mA) , two switching outputs PNP and digital link, to use with 942 or 947 sensor head |
| 中文描述： | 調(diào)幅/調(diào)頻收音機(jī)芯片1 |
| 文件頁數(shù)： | 5/14頁 |
| 文件大?。?/td> | 305K |
| 代理商： | S1A0427B01-D0B0 |
AM/FM 1 CHIP RADIO
S1A0427B01
5
APPLICATION INFORMATION
— EXTERNAL COMPONENTS
Part
Number
Purpose
Typical
Influence
Smaller Than Typ
Greater Than Typ
R5
Am gain Control
47k
(33K
∞
)
Low AM gain
AGC Distortion increase,
High gain
R7
FM detector
damper
4.7k
Low detector output, stable IF gain,
low FM gain
Sharp IF AMP curve
R8
FM gain adjust
470
Low FM gain
High gain, but noise
increase
C2
IF bypass
0.022
μ
F
Should not be less than 0.005
μ
F
High IF Gain,
S/N ratio degrade
C4
IF filter
0.022
μ
F
Removal may cause IF oscillation
No influence
C7
AM bypass
0.047
μ
F
Low gain
Using over 1 will cause
FM distortion at small
signal
C9
Detector filter
0.01
μ
F
Unstable IF AMP oscillation
Poor FM frequency
response
C10
Audio coupling
0.022
μ
F
Lower sensitivity, poor low frequency
response
Bass boost affects
de-emphasis curve
C11
Audio Input High-
cut
0.001
μ
F
Audio oscillation
Poor response
C12
Ripple filter
220
μ
F
Poor frequency response & Low gain
Improve AC Hum
C13
Audio output
coupling
470
μ
F
Poor low frequency response
Can achieve optimum
output power
C14
Power line filter
470
μ
F
Poor AC Hum
Improve AC Hum
C15
FM detector
phase-shift
10pF
Narrow IF bandwidth
Wide IF bandwidth
C16
High freq.
(IF) bypass
0.047
μ
F
Removal will cause fm oscillation
No influence
C17
AN AGC time
constant and high
frequency (IF)
bypass
0.047
μ
F
Charging not recommended
相關(guān)PDF資料 |
PDF描述 |
|---|---|
| S1A0429A01 | FM 1 CHIP RADIO |
| S1A0429A01-S0B0 | FM 1 CHIP RADIO |
| S1A0497X01 | FM FRONT END |
| S1A0497X01-I0B0 | FM FRONT END |
| S1A0497X01-S0B0 | FM FRONT END |
相關(guān)代理商/技術(shù)參數(shù) |
參數(shù)描述 |
|---|---|
| S1A0429A01 | 制造商:SAMSUNG 制造商全稱:Samsung semiconductor 功能描述:FM 1 CHIP RADIO |
| S1A0429A01-S0B0 | 制造商:SAMSUNG 制造商全稱:Samsung semiconductor 功能描述:FM 1 CHIP RADIO |
| S1A0497X01 | 制造商:SAMSUNG 制造商全稱:Samsung semiconductor 功能描述:FM FRONT END |
| S1A0497X01-I0B0 | 制造商:SAMSUNG 制造商全稱:Samsung semiconductor 功能描述:FM FRONT END |
| S1A0497X01-S0B0 | 制造商:SAMSUNG 制造商全稱:Samsung semiconductor 功能描述:FM FRONT END |
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