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參數(shù)資料
| 型號(hào)： | LA1780M |
| 元件分類： | 調(diào)諧器 |
| 英文描述： | 2-BAND, AUDIO TUNER, PQFP64 |
| 封裝： | QFP-64 |
| 文件頁數(shù)： | 35/38頁 |
| 文件大小： | 764K |
| 代理商： | LA1780M |
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Function List
FM Front End (Equivalent to the Sanyo LA1193)
Double input type double balanced mixer
Pin diode drive AGC output
MOSFET second gate drive AGC output
Keyed AGC adjustment pin
Differential IF amplifier
Wide band AGC sensitivity setting pin, and narrow
band AGC sensitivity setting pin
Local oscillator
FM IF
IF limiter amplifier
S-meter output (also used for AM) 6-stage pickup
Multipath detection pin (shared FM signal meter)
Quadrature detection
AF preamplifier
AGC output
Band muting
Weak input muting
Soft muting adjustment pin
Muting attenuation adjustment pin
IF counter buffer output (also used for AM)
SD (IF counter buffer on level) adjustment pin
SD output (active high) (also used for AM)
Noise Canceller
High-pass filter (first order)
Delay circuit based low-pass filter (fourth order)
Noise AGC
Pilot signal compensation circuit
Noise sensitivity setting pin
Function for disabling the noise canceller in AM
mode
Multiplex Functions
Adjustment-free VCO circuit
Level follower type pilot canceller circuit
HCC (high cut control)
Automatic stereo/mono switching
VCO oscillation stop function (AM mode)
Forced monaural
SNC (stereo noise controller)
Stereo display pin
Anti-birdie filter
AM
Double balanced mixer (1st, 2nd)
IF amplifier
Detection
RF AGC (narrow/wide)
Pin diode drive pin
IF AGC
Signal meter output (also used for FM)
Local oscillator circuits (first and second)
Local oscillator buffer output
IF counter buffer output (also used by the FM IF)
SD (IF counter buffer on level) adjustment pin
SD output (active high) (also used for AM)
Wide AGC
Detection output frequency characteristics
adjustment pin (low cut, high deemphasis)
AM stereo buffer
MRC (multipath noise rejection circuit)
AM/FM switching output (linked to the FM VCC)
No. 5724-6/38
LA1780M
相關(guān)PDF資料 |
PDF描述 |
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| LA1781M | AM/FM, AUDIO SINGLE CHIP RECEIVER, PQFP64 |
| LA1784M | AM/FM, AUDIO SINGLE CHIP RECEIVER, PQFP64 |
| LA1787NM | AM/FM, AUDIO SINGLE CHIP RECEIVER, PQFP64 |
| LA1787NM | AM/FM, AUDIO SINGLE CHIP RECEIVER, PQFP64 |
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相關(guān)代理商/技術(shù)參數(shù) |
參數(shù)描述 |
|---|---|
| LA1780MA-A-MPB-E | 制造商:ON Semiconductor 功能描述:ANALOG CAR RADIO TUNER - Trays 制造商:Rochester Electronics LLC 功能描述: 制造商:ON Semiconductor 功能描述:FTRAY - ANALOG CAR RADIO TUNER |
| LA1781M | 制造商:SANYO 制造商全稱:Sanyo Semicon Device 功能描述:For Car Radios Single-Chip Tuner IC |
| LA1781M_09 | 制造商:SANYO 制造商全稱:Sanyo Semicon Device 功能描述:For Car Radios Single-Chip Tuner IC |
| LA1781MA-MPB-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: |
| LA1781MD-A-MPB-E | 制造商:ON Semiconductor 功能描述:ANALOG CAR RADIO TUNER - Trays |
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