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參數(shù)資料
| 型號(hào)： | LA1837 |
| 廠商： | Sanyo Electric Co.,Ltd. |
| 英文描述： | Single-Chip Home Stereo IC with Electronic Tuning Support(帶電子調(diào)諧的家庭立體聲芯片) |
| 中文描述： | 單芯片家用音響集成電路與電子調(diào)諧支持（帶電子調(diào)諧的家庭立體聲芯片） |
| 文件頁(yè)數(shù)： | 5/9頁(yè) |
| 文件大小： | 255K |
| 代理商： | LA1837 |
Pin No.
Pin Function
Pin voltage (V)
Pin description
Equivalent circuit
No. 5688-5/9
LA1837
AM narrow band CF
connection
1.3 V
Recommended narrow band CF: BFU450
C4N (Murata Mfg. Co., Ltd.)
If the narrow band SD is not used, bypass
this circuit with a 50-
resistor and a 0.047-
μF capacitor connected in series.
10
FM S-meter output
0 V
R
L
= 8 k
11
AM S-meter output
AM SD sensitivity
adjustment
0 V (AM)
The AM SD sensitivity is adjusted with the
value of the external resistor connected
between this pin and ground.
12
AM and FM IF buffer
output, output control
switch (mute switch)
0 V
V13
≤
0.5 V: Reception state
1.4 V
≤
V13
≤
2.2 V: IF buffer output turned
on
V13
≥
3.5 V:
IF buffer output and muting are
turned on
13
Phase comparator
low-pass filter
(FM/AM switching)
V
CC
– 1.4 (FM)
0 V (AM)
Connecting this pin to ground through a
resistor sets the IC to AM mode.
Resistor value limits:
2.7 k
(when V
CC
= 7 V)
3.9 k
(8 V) 5.1 k
(9 V)
6.2 k
(10 V) 7.5 k
(11 V)
14
Pilot detector low-pass
filter (forced mono)
(VCO stop)
V
CC
– 1.0
If a current of 50 μA or greater flows from
this pin, the system is forced to mono.
Connecting this pin to ground stops the
VCO.
The resistor limit values are the same as for
pin 14.
15
Post amplifier input and
output
Vreg
Vreg
Output impedance r
o
= 200
Pin 16: right output, pin 17: left output
Inverting inputs
Pin 18: right input, pin 19: left input
R
NF
= 33 k
16
17
18
19
MPX output
3.5 V
3.5 V
Output impedance r
o
= 3.3 k
Pin 20: right de-emphasis
Pin 21: left de-emphasis
20
21
Continued on next page.
Continued from preceding page.
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PDF描述 |
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| LA1838 | Single-Chip Home Stereo IC with Electronic Tuning Support(帶電子調(diào)諧的家庭立體聲芯片) |
| LA1845NV | Single-Chip Home Stereo IC |
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相關(guān)代理商/技術(shù)參數(shù) |
參數(shù)描述 |
|---|---|
| LA1837_09 | 制造商:SANYO 制造商全稱(chēng):Sanyo Semicon Device 功能描述:For Home Stereo IC with Electronic Tuning Support Single-Chip IC |
| LA1837L-E | 功能描述:調(diào)諧器 RoHS:否 制造商:NXP Semiconductors 功能: 噪聲系數(shù): 工作電源電壓: 最小工作溫度: 最大工作溫度: |
| LA1837M | 制造商:SANYO 制造商全稱(chēng):Sanyo Semicon Device 功能描述:LA1837M |
| LA1837M_06 | 制造商:SANYO 制造商全稱(chēng):Sanyo Semicon Device 功能描述:Single-Chip AM/FM Tuner IC for Home Stereo Systems |
| la1837ml-a1-tlm-e | 制造商:ON Semiconductor 功能描述:AM/FM 1CHIP HOME TUNER - Tape and Reel 制造商:Rochester Electronics LLC 功能描述: 制造商:ON Semiconductor 功能描述:REEL / AM/FM 1CHIP HOME TUNER 制造商:Sony Semiconductor Solutions Division 功能描述: |
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