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參數資料
| 型號： | LA17000M |
| 元件分類： | 接收器 |
| 英文描述： | AM/FM, AUDIO SINGLE CHIP RECEIVER, PQFP80 |
| 封裝： | 14 X 14 MM, QFP-80 |
| 文件頁數： | 8/54頁 |
| 文件大小： | 830K |
| 代理商： | LA17000M |
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LA17000M
No. 6522-16/54
Continued from preceding page.
Symbol
Pin No.
Description
Function
Pin Circuit
PD1
20
0
PDS
22
HCTR
32
XBUF
23
Main
charge
pump
output
This is the PLL charge pump output pin.
When the frequency of the local oscillation
signal frequency is divided by N is higher than
the reference frequency, a high level signal is
output from the PD1 pin. When the frequency
is lower, a low level signal is output. If the
frequencies match, the pin goes to high
impedance.
A high-speed lockup circuit can be formed by
using this pin in combination with the main
charge pump.
For details, refer to page that describes the
charge pump configuration.
Serial data: HCTR is selected if CTS1 = 1 is
set.
The input frequency is 0.4 to 25 MHz.
The signal is passed through to the general-
purpose counter internally, via the 1/2
frequency divider. An integrating count can
also be kept.
The count result is output from the MSB of
the general-purpose counter through the
output pin DO.
For details, refer to page that describes the
general-purpose counter configuration.
Serial data: Prohibited when HCTR = 0.
This is the output buffer for the crystal
oscillator circuit.
Serial data: When XB = 1 is set, the output
buffer operates and the crystal oscillator
signal (pulse) is output.
When XB = 0, this pin outputs a low level.
(When a power-on reset is executed, XB = 0
and the output buffer is fixed at the low level.)
Sub-charge
pump
output
General-
purpose
counter
X’tal
oscillator
buffer
相關PDF資料 |
PDF描述 |
|---|---|
| LA1776M | 2-BAND, AUDIO TUNER, PQFP64 |
| LA1776M | 2-BAND, AUDIO TUNER, PQFP64 |
| LA1780M | 2-BAND, AUDIO TUNER, PQFP64 |
| LA1781M | AM/FM, AUDIO SINGLE CHIP RECEIVER, PQFP64 |
| LA1784M | AM/FM, AUDIO SINGLE CHIP RECEIVER, PQFP64 |
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| LA171B-YGG-PF | 制造商:LIGITEK 制造商全稱:LIGITEK electronics co., ltd. 功能描述:LED ARRAY |
| LA174B-2G-PF | 制造商:LIGITEK 制造商全稱:LIGITEK electronics co., ltd. 功能描述:LED ARRAY |
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