参数资料
型号: PCA2002TK/1,118
厂商: NXP Semiconductors
文件页数: 3/30页
文件大小: 0K
描述: IC WATCH CIRCUIT 10HVSON
标准包装: 6,000
类型: 时钟/频率发生器
PLL:
主要目的: 电池式腕表
输入: 晶体
电路数: 1
比率 - 输入:输出: 1:2
差分 - 输入:输出: 无/无
频率 - 最大: 32kHz
电源电压: 1.1 V ~ 3.6 V
工作温度: -10°C ~ 60°C
安装类型: 表面贴装
封装/外壳: 10-VFDFN 裸露焊盘
供应商设备封装: 10-HVSON(3x3)
包装: 管件
其它名称: 935275138118
PCA2002TK-T
PCA2002TK-T-ND
PCA2002
All information provided in this document is subject to legal disclaimers.
NXP B.V. 2011. All rights reserved.
Product data sheet
Rev. 8 — 25 November 2011
11 of 30
NXP Semiconductors
PCA2002
32 kHz watch circuit with programmable output period and pulse width
8.9 Frequency tuning at assembled watch
Figure 7 shows the test set-up for frequency tuning the assembled watch.
8.10 Measurement of the oscillator frequency and the inhibition time
The output of the two measuring states can either be monitored directly at pin RESET or
as a modulation of the supply current (a modulating resistor of 30 k
is connected
between VDD and VSS when the signal at pin RESET is at HIGH-level).
The supply voltage modulation must be followed as shown in Figure 4 in order to
guarantee the correct start-up of the circuit during production and testing.
Measuring states:
State 1; quartz crystal oscillator frequency divided by 1024; state 1 starts with a pulse
to VP and ends with a second pulse to VP
State 2; inhibition time has a value of n 0.122 ms. A signal with the periodicity of
31.25 ms + n
0.122 ms appears at pin RESET and as current modulation at pin V
DD
Fig 7.
Frequency tuning the assembled watch
mgw568
FREQUENCY
COUNTER
PROGRAMMABLE
DC POWER SUPPLY
PC INTERFACE
PC
M
motor
32 kHz
PCA200x
battery
Fig 8.
Output waveform at pin RESET for instruction state 2
mgw355
VDD
VSS
31.25 ms
+ inhibition time
VO(dif)
相关PDF资料
PDF描述
PCKV857EV,118 IC 1:10 2.5V PLL CLK-DRVR48TSSOP
PCM1602APTG4 IC DAC 24BIT 6CH 192KHZ 48-LQFP
PCM1792DB IC 24BIT AUDIO STEREO DAC 28SSOP
PCM3168ATPAPQ1 IC 24-BIT AUDIO CODEC 64-HTQFP
PCM3168ATPAPRQ1G4 IC 24-BIT AUDIO CODEC 64-HTQFP
相关代理商/技术参数
参数描述
PCA2002TK-T 功能描述:马达/运动/点火控制器和驱动器 WATCH IC RoHS:否 制造商:STMicroelectronics 产品:Stepper Motor Controllers / Drivers 类型:2 Phase Stepper Motor Driver 工作电源电压:8 V to 45 V 电源电流:0.5 mA 工作温度:- 25 C to + 125 C 安装风格:SMD/SMT 封装 / 箱体:HTSSOP-28 封装:Tube
PCA2002U/10AA 制造商:PHILIPS 制造商全称:NXP Semiconductors 功能描述:32 kHz watch circuit with programmable output period and pulse width
PCA2002U/10AB/1 制造商:PHILIPS 制造商全称:NXP Semiconductors 功能描述:32 kHz watch circuit with programmable output period and pulse width
PCA2002U/10AB/1,00 功能描述:马达/运动/点火控制器和驱动器 32KHZ WATCH CIRCUIT RoHS:否 制造商:STMicroelectronics 产品:Stepper Motor Controllers / Drivers 类型:2 Phase Stepper Motor Driver 工作电源电压:8 V to 45 V 电源电流:0.5 mA 工作温度:- 25 C to + 125 C 安装风格:SMD/SMT 封装 / 箱体:HTSSOP-28 封装:Tube
PCA2002U/10AB/1,005 制造商:NXP Semiconductors 功能描述: