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| 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(yè)數(shù)： | 11/38頁(yè) |
| 文件大小： | 764K |
| 代理商： | LA1780M |
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No. 5724-19/38
LA1780M
Pin No.
Function
Description
Equivalent circuit
AM/FM
switching circuit
To RF
Amp.
To 2nd
MIX
Continued from preceding page.
Continued on next page.
Double balanced mixer
Pins 60 and 61 are the mixer
10.7-MHz output
Pins 63 and 64 are the mixer
input.
59
Mixer output
This is an emitter insertion type
60
circuit, and the amount of
63
Mixer input
insertion is determined by the
64
capacitors C1 and C2.
Note:The lines for pins 63 and 64
must be kept separated from
the lines for pins 60 and 61.
Pin 62 functions both as the FM
front end VCC and the AM/FM
switching circuit.
6
Front end VCC AM/FM
switching
1st MIX
First mixer input
62
INPUT
The input impedance is about
10 k
.
Crystal oscillator circuit
10
AM 2nd OSC
The Kinseki, Ltd. HC-49/U-S and
a CL of 20 pF must be used.
V6 voltage
Mode
When 8 V
→ FM
OPEN
→ AM
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| 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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