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參數(shù)資料
| 型號(hào)： | DS32KHZ |
| 英文描述： | 32.768kHz Temperature-Compensated Crystal Oscillator |
| 中文描述： | 32.768kHz溫補(bǔ)晶振 |
| 文件頁數(shù)： | 6/10頁 |
| 文件大小： | 443K |
| 代理商： | DS32KHZ |
DS32kHz
6 of 10
Figure 2. Block Diagram
OPERATION
The DS32kHz module contains a crystal and an IC. While powered, the DS32kHz peridocially measures the
temperature and adjusts the crystal load to compensate.
The DS32kHz is designed to operate in two modes. In the dual-supply mode, a comparator circuit, powered by V
CC
,
monitors the relationship between the V
CC
and V
BAT
input levels. When V
CC
drops below a certain level compared to
V
BAT
, the device switches over to V
BAT
(Figure 3A). This mode uses V
CC
to conserve the battery connected to V
BAT
while V
CC
is applied.
In the single-supply mode, V
CC
is grounded and the unit is powered by V
BAT
. Current consumption is less than that
of V
CC
, because the comparator circuit is unpowered (Figure 3B).
Figure 3A shows how the DS32kHz should be connected when using two power supplies. V
CC
should be between
4.5V and 5.5V and V
BAT
should be between 2.7V and 3.3V. Figure 3B shows how the DS32kHz can be used when
only a single-supply system is available. V
CC
should be grounded and V
BAT
should then be held between 2.7V and
5.5V. The V
BAT
pin should be connected directly to a battery. Figure 3C shows a single supply mode where V
CC
is
held at +5V. See the frequency stability versus operating voltage for information about frequency error versus
supply voltage.
Figure 3. Power-Supply Connections
相關(guān)PDF資料 |
PDF描述 |
|---|---|
| DS32kHz-N | 32.768kHz Temperature-Compensated Crystal Oscillator |
| DS3800 | Advanced NV SRAM Battery Cap |
| DS3832C-311 | 3.3V, 32Mb Advanced NV SRAM with Clock |
| DS3884 | Pythagoras Processor |
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相關(guān)代理商/技術(shù)參數(shù) |
參數(shù)描述 |
|---|---|
| DS32KHZ/BGA | 功能描述:TCXO振蕩器 RoHS:否 制造商:AVX 封裝 / 箱體: 頻率:32.768 kHz 頻率穩(wěn)定性: 負(fù)載電容:15 pF 端接類型:SMD/SMT 電源電壓:3 V 尺寸:2.5 mm W x 3.2 mm L x 1 mm H 輸出格式:CMOS 最小工作溫度:- 40 C 最大工作溫度:+ 85 C 封裝:Reel |
| DS32KHZ/DIP | 功能描述:TCXO振蕩器 32.768Khz Temp Cntrld Crystal Osc RoHS:否 制造商:AVX 封裝 / 箱體: 頻率:32.768 kHz 頻率穩(wěn)定性: 負(fù)載電容:15 pF 端接類型:SMD/SMT 電源電壓:3 V 尺寸:2.5 mm W x 3.2 mm L x 1 mm H 輸出格式:CMOS 最小工作溫度:- 40 C 最大工作溫度:+ 85 C 封裝:Reel |
| DS32KHZ/WBGA | 功能描述:TCXO振蕩器 32.768Khz Temp Cntrld Crystal Osc RoHS:否 制造商:AVX 封裝 / 箱體: 頻率:32.768 kHz 頻率穩(wěn)定性: 負(fù)載電容:15 pF 端接類型:SMD/SMT 電源電壓:3 V 尺寸:2.5 mm W x 3.2 mm L x 1 mm H 輸出格式:CMOS 最小工作溫度:- 40 C 最大工作溫度:+ 85 C 封裝:Reel |
| DS32KHZ/WBGA/T&R | 制造商:Maxim Integrated Products 功能描述:CNTRLD OSC 0.032768MHZ TCXO CMOS 36BGA - Tape and Reel 制造商:Maxim Integrated Products 功能描述:IC TCXO 32.768KHZ COM 36-BGA 制造商:Maxim Integrated Products 功能描述:TCXO Oscillators 32.768Khz Temp Cntrld Crystal Osc |
| DS32KHZ/WBGA/T&R | 功能描述:TCXO振蕩器 32.768Khz Temp Cntrld Crystal Osc RoHS:否 制造商:AVX 封裝 / 箱體: 頻率:32.768 kHz 頻率穩(wěn)定性: 負(fù)載電容:15 pF 端接類型:SMD/SMT 電源電壓:3 V 尺寸:2.5 mm W x 3.2 mm L x 1 mm H 輸出格式:CMOS 最小工作溫度:- 40 C 最大工作溫度:+ 85 C 封裝:Reel |
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