- 您現(xiàn)在的位置：買賣IC網(wǎng) > PDF目錄378465 > CXA1538 (Sony Corporation) Quad Precision Operational Amplifier 14-CDIP -55 to 125 PDF資料下載
參數(shù)資料
| 型號(hào)： | CXA1538 |
| 廠商： | Sony Corporation |
| 英文描述： | Quad Precision Operational Amplifier 14-CDIP -55 to 125 |
| 中文描述： | 調(diào)頻立體聲/調(diào)幅收音機(jī) |
| 文件頁(yè)數(shù)： | 11/15頁(yè) |
| 文件大?。?/td> | 299K |
| 代理商： | CXA1538 |
第1頁(yè)第2頁(yè)第3頁(yè)第4頁(yè)第5頁(yè)第6頁(yè)第7頁(yè)第8頁(yè)第9頁(yè)第10頁(yè)當(dāng)前第11頁(yè)第12頁(yè)第13頁(yè)第14頁(yè)第15頁(yè)
—11—
CXA1538M/N/S
2. MPX circuit
1) MPX load resistance
When power supply voltage is over 3 V, change the MPX load resistor R6, R7 from 3.3 k
to 6.8 k
.
In this case, the output level is increased by about 6 dB.
2) Time constant of de-emphasis
Refer to the following table as the time constant is determined at C13, C14, R6 and R7.
3. AFC circuit
1) This IC has a built-in variable capacitances.
Change to the following circuit when designing J band, because the standard circuit is for W band.
2) AFC pull-in range is expanded by increasing the capacitance of standard circuit C7 3 pF.
Adjust the value of capacitance according to the set specification.
4. Auto blend circuit
This IC has a built-in auto blend circuit and a MONO switch is not required as a rule. This circuit controls
the separation in proportion to the signal level and reduces noise automatically for stereo reception below
the mid electric field when the electric field strength reaches lower than about 40 dBμ. When the electric
field strength turns below 10 to 15 dBμ, MONO operation is automatically activated.
To switch MONO mode on externally, ground pin 3 with 33 k
.
50 μs
75 μs
3.3 k
0.015 μF
0.022 μF
6.8 k
0.0082 μF
0.012 μF
R6, R7
C13, C14
3pF
1μ
1μ
4.7μ
150k
9
10
22
23
33k
MONO
SW
2
3
相關(guān)PDF資料 |
PDF描述 |
|---|---|
| CXA1550P | Dolby B Type Noise Reduction System(杜比B型降噪系統(tǒng)) |
| CXA1551M | Dolby B Type Noise Reduction System(杜比B型降噪系統(tǒng)) |
| CXA1551P | Dolby B Type Noise Reduction System(杜比B型降噪系統(tǒng)) |
| CXA1552M | Dolby B Type Noise Reduction System(杜比B型降噪系統(tǒng)) |
| CXA1552P | Dolby B Type Noise Reduction System(杜比B型降噪系統(tǒng)) |
相關(guān)代理商/技術(shù)參數(shù) |
參數(shù)描述 |
|---|---|
| CXA1538M | 制造商:SONY 制造商全稱:Sony Corporation 功能描述:FM STEREO/AM RADIO |
| CXA1538M/N/S | 制造商:未知廠家 制造商全稱:未知廠家 功能描述:FM Stereo/AM Radio |
| CXA1538N | 制造商:SONY 制造商全稱:Sony Corporation 功能描述:FM STEREO/AM RADIO |
| CXA1538S | 制造商:SONY 制造商全稱:Sony Corporation 功能描述:FM STEREO/AM RADIO |
| CXA1541M | 制造商:未知廠家 制造商全稱:未知廠家 功能描述:Prescaler/Frequency Divider |
發(fā)布緊急采購(gòu)，3分鐘左右您將得到回復(fù)。