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参数资料
| 型号： | DS32KHZSN#T&R |
| 厂商： | Maxim Integrated |
| 文件页数： | 5/8页 |
| 文件大小： | 0K |
| 描述： | IC OSC 32.768KHZ TEMPCOMP 16SOIC |
| 产品培训模块： | Lead (SnPb) Finish for COTS Obsolescence Mitigation Program |
| 标准包装： | 1,000 |
| 系列： | DS |
| 类型： | TCXO |
| 频率： | 32.768kHz |
| 输出： | CMOS |
| 电源电压： | 5V |
| 频率稳定性： | ±7.5ppm |
| 工作温度： | -40°C ~ 85°C |
| 电流 - 电源（最大）： | 220µA |
| 安装类型： | 表面贴装 |
| 尺寸/尺寸： | 0.412" L x 0.300" W（10.46mm x 7.62mm） |
| 高度： | 0.105"（2.67mm） |
| 封装/外壳： | 16-SOIC（0.295"，7.50mm 宽） |
| 包装： | 带卷 (TR) |
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 |
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| DS32KHZSWN/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 |
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