參數(shù)資料
型號(hào): LA1787M
廠商: Sanyo Electric Co.,Ltd.
英文描述: Single-Chip Tuner IC for Car Radios
中文描述: 單芯片調(diào)諧器IC的汽車(chē)收音機(jī)
文件頁(yè)數(shù): 46/54頁(yè)
文件大小: 606K
代理商: LA1787M
No. 6655-46/54
LA1787M
(AM)
This section investigates the gain in each block in the LA1787M when the Sanyo recommended circuits are used.
(Test conditions)
Ambient temperature: 26°C
Antenna and mixer input frequency: 1 MHz
First and second mixer input frequency: 10.7 MHz
Second IF input frequency: 450 kHz
The gains at each stage will be as follows.
RF Gain (ANT IN-pin62): 17 dB
1st MIX Gain (pin62-pin56): 8 dB
1st IF Gain (pin55-pin53): 15 dB
AM
RF
RF
Gain
1st MIX
Gain
1st IF
Gain
2nd MIX
Gain
2nd IF
Gain
A11774
1st MIX
1st IF
2nd MIX
2nd IF
AM DET
Fig. 55
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