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參數(shù)資料
| 型號： | LC7218JM |
| 廠商： | Sanyo Electric Co.,Ltd. |
| 英文描述： | PLL Frequency Synthesizer for Electronic Tuning in AV Systems |
| 中文描述： | 鎖相環(huán)頻率合成器的AV系統(tǒng)的電子調(diào)諧 |
| 文件頁數(shù)： | 7/16頁 |
| 文件大?。?/td> | 265K |
| 代理商： | LC7218JM |
Continued from preceding page.
Note:
*
1. Since the output port states are undefined when power is first applied, transfer the control data quickly.
*
2. The high and low level input voltages for the CE, CL, DI, IN0 and IN1 pins are V
IH
= 2.2 to 6.5 V and V
IL
= 0 to 0.7 V, regardless of the power
supply voltage V
DD
.
Control Data Format (serial input data)
No. 4758-7/16
LC7218, 7218M, 7218JM
Pin No.
Symbol
I/O
Type
Function
9
10
11
12
13
14
17
7
8
16
15
OUT0
OUT1
OUT2
OUT3
OUT4
OUT5
OUT6
IN0
IN1
HCTR
LCTR
Output
*
1
Input
*
2
Input
Input
Output port
Input port
General-purpose
counter
Frequency
measurement signal
input pin
General-purpose
counter
Frequency or period
measurement signal
input pin
These pins latch bits O
0
to O
6
in the serial data transferred from the controller, invert
that data and output the inverted data in parallel.
The OUT0 pin can also be used to output an 8 Hz clock time base signal.
(When TB is 1.)
OUT1 and OUT2 are complementary outputs.
OUT0, OUT3, OUT4, OUT5 and OUT6 are N-channel open drain outputs that can
handle up to 13 V.
The values of the IN0 and IN1 input ports can be converted from parallel to serial and
output from the DO output pin.
HCTR is selected when SC in the serial input data is set to 1.
Input frequency range: 10 to 60 MHz (70 mVrms minimum)
The signal is supplied to a general-purpose 20-bit binary counter after passing through a
divide-by-eight circuit. Therefore, the value of the counter is 1/8 of the frequency actually
input to HCTR.
When HCTR is selected the LC7218 will function in frequency measurement mode
and the measurement period can be selected to be either 60 or 120 ms. (GT = 0: 60 ms,
1: 120 ms)
The result of the measurement (the value of the general-purpose counter) can be output
MSB first from the DO output pin.
LCTR is selected when SC in the serial input data is set to 0.
When SF in the serial input data is set to 1:
— Frequency measurement mode is selected.
— Input frequency range: 15 to 500 kHz (70 mVrms minimum).
— The signal is supplied directly to the general-purpose counter without passing
through the internal divide-by-eight circuit.
— The measurement period is the same as for HCTR.
When SF in the serial input data is set to 0:
— Period measurement mode is selected.
— Input frequency range: 1 Hz to 20 kHz (V
IH
= 0.7 V
DD
minimum, V
IL
= 0.3·V
DD
maximum)
— The measurement can be selected to be for one or two cycles. If two cycle
measurement is selected the input frequency range becomes 2 Hz to 20 kHz.
(GT = 0: one cycle, 1: two cycles)
Measurement results are output in the same manner as HCTR measurement results.
相關(guān)PDF資料 |
PDF描述 |
|---|---|
| LC7218 | PLL Frequency Synthesizer for Electronic Tuning in AV Systems |
| LC7218M | PLL Frequency Synthesizer for Electronic Tuning in AV Systems |
| LC72191JM | PLL Frequency Synthesizer for Electronic Tuning in Car Stereo Tuners |
| LC72191 | PLL Frequency Synthesizer for Electronic Tuning in Car Stereo Tuners |
| LC72191M | PLL Frequency Synthesizer for Electronic Tuning in Car Stereo Tuners |
相關(guān)代理商/技術(shù)參數(shù) |
參數(shù)描述 |
|---|---|
| LC7218M | 制造商:SANYO 制造商全稱:Sanyo Semicon Device 功能描述:PLL Frequency Synthesizer for Electronic Tuning in AV Systems |
| LC7218M-TLM-E | 制造商:Sony Semiconductor Solutions Division 功能描述: |
| LC7219 | 制造商:SANYO 制造商全稱:Sanyo Semicon Device 功能描述:PLL Frequency Synthesizers |
| LC72191 | 制造商:SANYO 制造商全稱:Sanyo Semicon Device 功能描述:PLL Frequency Synthesizer for Electronic Tuning in Car Stereo Tuners |
| LC72191JM | 制造商:SANYO 制造商全稱:Sanyo Semicon Device 功能描述:PLL Frequency Synthesizer for Electronic Tuning in Car Stereo Tuners |
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