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參數資料
| 型號： | LA7555 |
| 元件分類： | 接收器 |
| 英文描述： | AM/FM, AUDIO/VIDEO DEMODULATOR, PDIP24 |
| 封裝： | SDIP-24 |
| 文件頁數： | 3/11頁 |
| 文件大小： | 355K |
| 代理商： | LA7555 |
LA72680M
No.7955-11/21
Continued from preceding page.
DC voltage
Pin
No.
Pin Function Name
AC level
Function
Equivalent circuit
31
Monitor terminal
DC ; 2.5V
FM MIX output(Low), Lch VCO(middle), Rch
VCO(High) can be monitored by controlling
Pin 23 in REC mode.
HOLD and DO pulses can be monitored by
Pin 17 in PB mode. BPF of Lch and Rch can
be monitored by serial control
in PB mode.
REC-ON
500
500
30k
33
PB AMP output
DC; 2.5V
Output of HEAD AMP in PB mode.
100
350
A
DC; Unsettled
34
PB FM input terminal
AC; 350mVp-p
(L/R MIX)
Input pin of FM in PB mode.
30k
200
A
50k
30pF
Vref
2.5V Vref
37
Serial data input
terminal
5V
0V
Hi ; 3.5V to 5V
Low ; 0V to 1.5V
50
A
500
ON
at ACK
38
CLK input terminal
5V
0V
Hi ; 3.5V to 5V
Low ; 0V to 1.5V
50
A
500
Continued on next page.
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