參數(shù)資料
型號(hào)： LC72147V
廠(chǎng)商： Sanyo Electric Co.,Ltd.
英文描述： PLL Frequency Synthesizer for Electronic Tuning in Car Audio Systems
中文描述： 鎖相環(huán)頻率合成器在汽車(chē)音響系統(tǒng)的電子調(diào)諧
文件頁(yè)數(shù)： 11/22頁(yè)
文件大?。?/td> 154K
代理商： LC72147V
No. 6675-11/22
LC72147V
No.
Control block/data
Content
Related data
Selects the general-purpose counter input pin (HCTR).
CTS = 1: Selects the HSTR pin.
CTS = 0: Pulls down the HCTR pin.
General-purpose counter measurement start data
CTE = 1: Starts the counter.
CTE = 0: Resets the counter.
Determines the measurement time (frequency mode) and number of periods (period
mode).
CTP = 0: When the counter has been reset (CTE = 0), pulls down the general-purpose
counter input.
CTP = 1: When the counter has been reset (CTE = 0), does not pull down the general-
purpose counter input, and shortens the wait time.
However, immediately after CTP is set to 1, the counter start must be delayed
until the general-purpose counter input pin has been biased.
The input sensitivity is reduced when CTC is set to 1. (Sensitivity: 10 to 30 mV rms)
(6)
General-purpose counter
control data
CTS, CTE
GT0, GT1
CTP
CTC
Data that specifies the I/O direction of the I/O ports.
[Data] = 0: Input port
1: Output port
*
: After the power-on reset, the I/O-1, I/O-2, I/O-4, and I/O-5 are set up as input ports. I/O-3
is set up as an output port.
OUT1 to OUT5
ULD
(7)
I/O port control data
IO-1 to I/O-5
Data that determines the output from output ports O-1 to O-5.
[Data] = 1: Open or high level.
0: Low
*
: Invalid when the corresponding port is set up as an input port or as the unlock state
indicator output.
I/O-1 to I/O-5
ULD
(8)
Output port data
OUT1 to OUT5
Determines the 3-value output of the IFBC port.
*
: When PLL inhibit and crystal oscillator stop mode (R0 = 0, R1 = R2 = R3 = 1), the IFBC
output is set to the open state. This output goes to the mid level after the power-on reset.
(9)
IFBC port control data
IFB0, IFB1
Continued from preceding page.
Frequency measurement
Period measurement
mode
GT1
GT0
Measurement time
Wait time
CTP = 0
CTP = 1
0
0
4 ms
3 to 4 ms 1 to 2 ms
One period
0
1
8
3 to 4 ms 1 to 2 ms
One period
1
0
32
7 to 8 ms 1 to 2 ms
Two periods
1
1
64
7 to 8 ms 1 to 2 ms
Two periods
IFB0
IFB1
IFBC output
0
0
Mid (Vreg/2 = 1.5 V)
0
1
Low (0 V)
1
0
Mid (Vreg/2 = 1.5 V)
1
1
High (Vreg = 3.0 V)
Continued on next page.
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LC72148V Electronic Tuning PLL Frequency Synthesizer for Car Stereo Systems
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相關(guān)代理商/技術(shù)參數(shù)
參數(shù)描述
LC72148V 制造商:SANYO 制造商全稱(chēng):Sanyo Semicon Device 功能描述:Electronic Tuning PLL Frequency Synthesizer for Car Stereo Systems
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LC72148V-TLM-E 功能描述:時(shí)鐘合成器/抖動(dòng)清除器 RoHS:否 制造商:Skyworks Solutions, Inc. 輸出端數(shù)量: 輸出電平: 最大輸出頻率: 輸入電平: 最大輸入頻率:6.1 GHz 電源電壓-最大:3.3 V 電源電壓-最小:2.7 V 封裝 / 箱體:TSSOP-28 封裝:Reel
LC7215 制造商:SANYO 制造商全稱(chēng):Sanyo Semicon Device 功能描述:MW/LW PLL Frequency Synthesizers
LC72151V 制造商:SANYO 制造商全稱(chēng):Sanyo Semicon Device 功能描述:PLL Frequency Synthesizer for Electronic Tuning in Car Audio Systems
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