參數(shù)資料
型號(hào)： LA1136N
廠商： Sanyo Electric Co.,Ltd.
英文描述： AM Tuners for Car Radios and Home Stereos(應(yīng)用于車載電臺(tái)和家庭立體聲的AM調(diào)諧器)
中文描述： 上午車用收音機(jī)調(diào)諧器和家庭影院（應(yīng)用于車載電臺(tái)和家庭立體聲的上午調(diào)諧器）
文件頁(yè)數(shù)： 13/28頁(yè)
文件大?。?/td> 573K
代理商： LA1136N
(2) Oscillator coil
The oscillator for LA1136N and LA1137N can operate up to 100 MHz. Stray capacitance resulting from poor oscillator coil
design can cause antiresonance in the range 50 to 100 MHz. This results inparasitic oscillations at the local-oscillator buffer
output, which can prevent the PLL from locking.
Countermeasure
1
Reduce the oscillator coil stray capacitance (tapping is recommended)
2
Connect a capacitor of 43 pF or greater between OSC BUFF (Pin 24 for LA1136N, and Pin 20 for LA1137N) and GND.
(3) IF tank coil
LA1136N Pin 13 load coil
LA1137N Pin 10 load coil
The IF tank coil connected to IF OUT has different specifications to that of the LA1135. The detector input impedance of the
LA1135 is low, therefore for a Q
O
of 70 to 80, the Q
L
was 20 to 30. The detector input impedances of the LA1136N and
LA1137N are higher. This means that the Q
O
and Q
L
of the tank coil are approximately the same. A coil with a Q
O
of
approximately 30 is recommended.
4.
Recommended Coil Specifications
(1) RF alignment coil
Parasitic oscillations in the 50 to
100 MHz region
Required local
oscillator signal
Primary coil
Secondary coil
LA1136N, 1136NM, 1137N, 1137NM
No. 3507-13/28
相關(guān)PDF資料
PDF描述
LA1140 FM IF System for Car Radio
LA1143 FM IF System for Car Radios
LA1145 FM IF System (Quadrature Detector) for Car Radio
LA1145M FM IF System (Quadrature Detector) for Car Radio
LA1150N FM IF Amplifier for Car Radio
相關(guān)代理商/技術(shù)參數(shù)
參數(shù)描述
LA1136NM 制造商:SANYO 制造商全稱:Sanyo Semicon Device 功能描述:AM Tuners for Car Radios and Home Stereos
LA1137 制造商:SANYO 制造商全稱:Sanyo Semicon Device 功能描述:AM Tuners for Car Radios and Home Stereos
LA1137M 制造商:未知廠家 制造商全稱:未知廠家 功能描述:
LA1137N 制造商:SANYO 制造商全稱:Sanyo Semicon Device 功能描述:AM Tuners for Car Radios and Home Stereos
LA1137NM 制造商:SANYO 制造商全稱:Sanyo Semicon Device 功能描述:AM Tuners for Car Radios and Home Stereos
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