参数资料
型号: LA1784M
元件分类: 接收器
英文描述: AM/FM, AUDIO SINGLE CHIP RECEIVER, PQFP64
封装: QIP-64
文件页数: 37/50页
文件大小: 568K
代理商: LA1784M
No. 6039-42/50
LA1784M
FM
RF
MIX IN 64 pin
1st IF IN 56 pin
2nd IF IN 51 pin
ANT IN
11 dB
12 dB
18 dB
A11773
Fig. 54
Gain Distribution (FM)
This section investigates the gain in each block in the LA1784M when the Sanyo recommended circuits are used.
(Test conditions)
Ambient temperature: 26°C
Antenna and mixer input frequency: 98.1 MHz
First and second IF input frequency: 10.7 MHz
The input levels when VSM = 2 V will be as follows.
ANT IN: 19 dB
MIX IN: 30 dB
1st IF IN: 42 dB
2nd IF IN: 60 dB
When the gains for each block are determined according to the above, the results are as follows.
RF GAIN: 11 dB
MIX GAIN: 12 dB
1st IF GAIN: 18 dB
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