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DS32kHz
PIN DESCRIPTION
SO
1
2
3–12, 15, 16
13
14
PIN
BGA
C4, C5, D4, D5
C2, C3, D2, D3
A7, A8, B7, B8,
C7, C8, D7, D8
All remaining
balls
A4, A5, B4, B5
DIP
12
13
1, 6–11, 14
4
5
NAME
32kHz
V CC
N.C.
GND
V BAT
FUNCTION
32.768kHz Push-Pull Output
Primary Power Supply
No Connection (Must be grounded)
Ground
+3V Nominal Supply Input. Used to operate the
device when V CC is absent.
Figure 2. Delta Time and Frequency vs. Temperature
20
0
-20
Crystal +20ppm
Typical Crystal,
0
-40
Uncompensated
DS32kHz
Accuracy
-20
-60
-80
-100
Band
-40
-120
-140
-160
-180
-200
Crystal -20ppm
-60
-80
-100
-40
-30
-20
-10
0
10
20
30
40
50
60
70
80
Temperature (°C)
FUNCTIONAL DESCRIPTION
The DS32kHz is a temperature-compensated crystal oscillator (TCXO) that outputs a 32,768Hz square wave.
While the DS32kHz is powered by either supply input, the device measures the temperature every 64 seconds and
adjusts the output frequency. The device requires four pins for operation: V CC , GND, V BAT , and 32kHz. (See
Figure 4 for connection schemes.) Power is applied through V CC and GND, while V BAT is used to maintain the
32kHz output in the absence of power. Once every 64 seconds, the DS32kHz measures the temperature and
adjusts the output frequency. The output is accurate to ±2ppm (±1 min/yr) from 0°C to +40°C and to ±7.5ppm
(±4 min/year) from -40°C to 0°C and from +40°C to +85°C.
5 of 8
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相关代理商/技术参数
DS32KHZN/BGA/T&R/ 功能描述:TCXO振荡器 RoHS:否 制造商:AVX 封装 / 箱体: 频率:32.768 kHz 频率稳定性: 负载电容:15 pF 端接类型:SMD/SMT 电源电压:3 V 尺寸:2.5 mm W x 3.2 mm L x 1 mm H 输出格式:CMOS 最小工作温度:- 40 C 最大工作温度:+ 85 C 封装:Reel
DS32KHZN/DIP 功能描述:TCXO振荡器 32.768Khz Temp Cntrld Crystal Osc RoHS:否 制造商:AVX 封装 / 箱体: 频率:32.768 kHz 频率稳定性: 负载电容:15 pF 端接类型:SMD/SMT 电源电压:3 V 尺寸:2.5 mm W x 3.2 mm L x 1 mm H 输出格式:CMOS 最小工作温度:- 40 C 最大工作温度:+ 85 C 封装:Reel
DS32KHZ-N/DIP 制造商:DALLAS 制造商全称:Dallas Semiconductor 功能描述:32.768kHz Temperature-Compensated Crystal Oscillator
DS32KHZN/WBGA 功能描述:TCXO振荡器 32.768Khz Temp Cntrld Crystal Osc RoHS:否 制造商:AVX 封装 / 箱体: 频率:32.768 kHz 频率稳定性: 负载电容:15 pF 端接类型:SMD/SMT 电源电压:3 V 尺寸:2.5 mm W x 3.2 mm L x 1 mm H 输出格式:CMOS 最小工作温度:- 40 C 最大工作温度:+ 85 C 封装:Reel
DS32KHZ-N/WBGA 制造商:DALLAS 制造商全称:Dallas Semiconductor 功能描述:32.768kHz Temperature-Compensated Crystal Oscillator
DS32KHZN/WBGA/T&R 制造商:Maxim Integrated Products 功能描述: 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 OSC TCXO 32.768KHZ 5V 36-BGA
DS32KHZN/WBGA/T&R-W 制造商:Maxim Integrated Products 功能描述:CNTRLD OSC 0.032768MHZ TCXO CMOS 36BGA - Tape and Reel
DS32KHZN/WBGA/T&R 功能描述:TCXO振荡器 32.768Khz Temp Cntrld Crystal Osc RoHS:否 制造商:AVX 封装 / 箱体: 频率:32.768 kHz 频率稳定性: 负载电容:15 pF 端接类型:SMD/SMT 电源电压:3 V 尺寸:2.5 mm W x 3.2 mm L x 1 mm H 输出格式:CMOS 最小工作温度:- 40 C 最大工作温度:+ 85 C 封装:Reel