参数资料
型号: LA1787M-MPB-E
厂商: ON Semiconductor
文件页数: 4/54页
文件大小: 0K
描述: IC CAR RADIO TUNER 64QFP
标准包装: 60
频率: 520kHz ~ 1.71MHz,64MHz ~ 108MHz
调制或协议: AM,FM
应用: 车载音频
数据接口: PCB,表面贴装
天线连接器: PCB,表面贴装
电源电压: 8V
工作温度: -40°C ~ 85°C
封装/外壳: *
供应商设备封装: *
包装: *
LA1787M
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
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
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
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 V CC )
mode
No. 6655-4/54
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