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參數(shù)資料
| 型號(hào)： | LC72345 |
| 廠商： | Sanyo Electric Co.,Ltd. |
| 元件分類： | DC/DC變換器 |
| 英文描述： | Low-Voltage ETR Controller with On-Chip DC-DC Converter |
| 中文描述： | 低電壓東突控制器的片上DC - DC變換器 |
| 文件頁數(shù)： | 9/13頁 |
| 文件大小： | 90K |
| 代理商： | LC72345 |
No. 6171-9/13
LC72344W, 72345W
Continued from preceding page.
Pin No.
Pin
I/O
Function
I/O circuit
VDC3 (3 V) step-up control.
24
VDC1
I
CMOS amplifier input
2.1 V power supply. Apply either the voltage stepped-up by the DC-DC converter or an
equivalent voltage (2.1 V typical).
27
VDC2
I
3 V power supply. Apply either the voltage stepped-up by VDC1 or an equivalent voltage (3 V
typical).
25
VDC3
I
VDC2 step-up transistor drive.
28
VREF
O
Frequency adjustment for the internal RC oscillator circuit. The RC oscillator frequency can
be lowered by inserting a capacitor between this pin and ground.
29
VCON
I
The VDC3 voltage can be adjusted by inserting a resistor between this pin and ground.
30
VADJ
O
FM VCO (local oscillator) input.
This pin is selected with the PLL instruction CW1.
The input must be capacitor coupled.
Input is disabled in backup mode, in halt mode, after a reset, and in PLL stop mode.
56
FMIN
I
CMOS amplifier input
AM VCO (local oscillator) input.
This pin and the bandwidth are selected with the PLL instruction CW1.
The input must be capacitor coupled.
Input is disabled in backup mode, in halt mode, after a reset, and in PLL stop mode.
57
AMIN
I
CMOS push-pull output
Main charge pump output. When the local oscillator frequency divided by N is higher than the
reference frequency a high level is output, when lower, a low level is output, and the pin is set
to the high-impedance state when the frequencies match.
This output goes to the high-impedance state in backup mode, in halt mode, after a reset,
and in PLL stop mode.
59
EO
O
Transistor used for the low-pass filter amplifier.
Connect AGND to ground.
60
61
62
AIN
AOUT
AGND
O
Power supply pin.
This pin must be connected to ground.
This pin must be connected to ground.
This pin must be connected to VDD. Supports A/D converter.
—
26
58
55
VSS
VSS
VDD
—
CW1 b1, b0
Bandwidth
11
0.5 to 10 MHz (MW, LW)
Note:
*
Applications must establish the output data in advance with an OUT, SPB, or RPB instruction and then set the pin to output mode with an IOS
instruction when using the I/O switchable ports as output pins.
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| LC72346W | Ultralow-Voltage ETR Controller with On-Chip LCD Driver |
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| LC72349W | Low-Voltage ETR Controller with On-Chip LCD Driver |
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相關(guān)代理商/技術(shù)參數(shù) |
參數(shù)描述 |
|---|---|
| LC72345W | 制造商:SANYO 制造商全稱:Sanyo Semicon Device 功能描述:Low-Voltage ETR Controller with On-Chip DC-DC Converter |
| LC72346 | 制造商:SANYO 制造商全稱:Sanyo Semicon Device 功能描述:Ultralow-Voltage ETR Controller with On-Chip LCD Driver |
| LC723461W | 制造商:未知廠家 制造商全稱:未知廠家 功能描述: |
| LC723462W | 制造商:未知廠家 制造商全稱:未知廠家 功能描述: |
| LC72346W | 制造商:SANYO 制造商全稱:Sanyo Semicon Device 功能描述:Ultralow-Voltage ETR Controller with On-Chip LCD Driver |
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