參數資料
型號： TPS65930BZCHR
廠商： TEXAS INSTRUMENTS INC
元件分類： 消費家電
英文描述： SPECIALTY CONSUMER CIRCUIT, PBGA139
封裝： 10 X 10 MM, 0.65 MM PITCH, GREEN, PLASTIC, NFBGA-139
文件頁數： 102/115頁
文件大小： 1232K
代理商： TPS65930BZCHR
Signalswing
limitingcircuit
Biasgenerator
andstartup
circuit
XI
XO
Signal
shaping
C1
C2
Y
Currentcontrol
circuitand
modeselection
XTAL
Externaltodevice
VBATOK
(1)
Internal
GND
Internal
GND
VBATOK
(1)
037-042
SWCS037G
– MAY 2008 – REVISED APRIL 2011
11.2.3.1 External Crystal Description
Figure 11-5 shows the 32-kHz oscillator block diagram with crystal in master mode.
NOTE: Switches close by default and open only if register access enables very-low-power mode when VBAT
< 2.7 V.
Figure 11-5. 32-kHz Oscillator Block Diagram In Master Mode With Crystal
CXIN and CXOUT represent the total capacitance of the printed circuit board (PCB) and components,
excluding the crystal. Their values depend on the datasheet of the crystal, the internal capacitors, and the
parallel capacitor. The frequency of the oscillations depends on the value of the capacitors. The crystal
must be in the fundamental mode of operation and parallel resonant.
NOTE
For the values of CXIN and CXOUT, see Table 14-1.
Table 11-4 lists the required electrical constraints.
Table 11-4. Crystal Electrical Characteristics
Parameter
Min
Typ
Max
Unit
Parallel resonance crystal frequency
32.768
kHz
Input voltage, Vin (normal mode)
1.0
1.3
1.55
V
Internal capacitor on each input (Cint)
10
pF
Parallel input capacitance (Cpin)
1
pF
Nominal load cap on each oscillator input CXIN and CXOUT(1)
CXIN = CXOUT = Cosc*2
– (Cint +
pF
Cpin)
Pin-to-pin capacitance
1.6
1.8
pF
(1)
Nominal load capacitor on each oscillator input defined as CXIN = CXOUT = Cosc*2
– (Cint + Cpin). Cosc is the load capacitor defined
in the crystal oscillator specification, Cint is the internal capacitor, and Cpin is the parallel input capacitor.
Copyright
2008–2011, Texas Instruments Incorporated
Clock Specifications
87
focus.ti.com: TPS65930/TPS65920
相關PDF資料
PDF描述
TPS65930BZCH SPECIALTY CONSUMER CIRCUIT, PBGA139
TPS65950ZXNR SPECIALTY CONSUMER CIRCUIT, PBGA209
TPS65950ZXNT SPECIALTY CONSUMER CIRCUIT, PBGA209
TPS6735Y 2 A SWITCHING REGULATOR, 160 kHz SWITCHING FREQ-MAX, UUC12
TPS6735IP 2 A SWITCHING REGULATOR, 160 kHz SWITCHING FREQ-MAX, PDIP8
相關代理商/技術參數
參數描述
TPS65950A2ZXN 功能描述:PMIC 解決方案 Integ Pwr Mgmt IC RoHS:否 制造商:Texas Instruments 安裝風格:SMD/SMT 封裝 / 箱體:QFN-24 封裝:Reel
TPS65950A2ZXNR 功能描述:PMIC 解決方案 Integ Pwr Mgmt IC RoHS:否 制造商:Texas Instruments 安裝風格:SMD/SMT 封裝 / 箱體:QFN-24 封裝:Reel
TPS65950A3ZXN 功能描述:PMIC 解決方案 Integrated Pwr Mgmt IC RoHS:否 制造商:Texas Instruments 安裝風格:SMD/SMT 封裝 / 箱體:QFN-24 封裝:Reel
TPS65950A3ZXNR 功能描述:PMIC 解決方案 Integrated Pwr Mgmt IC RoHS:否 制造商:Texas Instruments 安裝風格:SMD/SMT 封裝 / 箱體:QFN-24 封裝:Reel
TPS65950BZXN 功能描述:開關變換器、穩(wěn)壓器與控制器 Integ Pwr Mgmt IC RoHS:否 制造商:Texas Instruments 輸出電壓:1.2 V to 10 V 輸出電流:300 mA 輸出功率: 輸入電壓:3 V to 17 V 開關頻率:1 MHz 工作溫度范圍: 安裝風格:SMD/SMT 封裝 / 箱體:WSON-8 封裝:Reel
發(fā)布緊急采購，3分鐘左右您將得到回復。

采購需求

(若只采購一條型號，填寫一行即可)

發(fā)布成功！您可以繼續(xù)發(fā)布采購。也可以進入我的后臺，查看報價

發(fā)布成功！您可以繼續(xù)發(fā)布采購。也可以進入我的后臺，查看報價

*型號 *數量 廠商 批號 封裝
添加更多采購

我的聯(lián)系方式

*
*
*