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参数资料
| 型号： | DS4000GF/WBGA |
| 厂商： | Maxim Integrated Products |
| 文件页数： | 16/16页 |
| 文件大小： | 0K |
| 描述： | IC OSC TCXO 16.384MHZ 24-BGA |
| 标准包装： | 135 |
| 类型： | 温度 - 补偿晶体振荡器（TCXO） |
| 频率： | 16.384MHz |
| 电源电压： | 4.75 V ~ 5.25 V |
| 电流 - 电源： | 1.5mA |
| 工作温度： | 0°C ~ 70°C |
| 封装/外壳： | 24-BBGA |
| 包装： | 托盘 |
| 供应商设备封装： | 24-WBGA（11x9） |
| 安装类型： | 表面贴装 |
DS4000 Digitally Controlled TCXO
9 of 16
DIGITAL TEMPERATURE SENSOR
The digital temperature sensor provides 10-bit temperature readings that indicate the temperature of the device.
Temperature readings are communicated from the DS4000 over a 2-wire serial interface. No additional
components are required. The DS4000 has an external address bit that allows a user to choose the slave address
from two possible values.
The factory-calibrated temperature sensor requires no external components. Upon power-up, the DS4000 starts
performing temperature conversions with a resolution of 10 bits (+0.25°C resolution). Following an 8-bit command
protocol, temperature data can be read over the 2-wire interface. The host can periodically read the value in the
temperature register, which contains the last completed conversion. As conversions are performed in the
background, reading the temperature register does not affect the conversion in progress.
READING TEMPERATURE
The DS4000 measures temperature through the use of an on-chip temperature-measurement technique with an
operation range from 0°C to +70°C (commercial) or -40°C to +85°C (industrial). The device performs continuous
conversions with the most recent result being stored in the temperature register. The digital temperature is
retrieved from the temperature register using the READ TEMPERATURE command, as described in detail in the
following paragraphs.
Table 2 shows the exact relationship of output data to measured temperature. The data is transmitted serially over
the 2-wire serial interface, MSB first. The MSB of the temperature register contains the “sign” (S) bit, denoting
whether the temperature is positive or negative. For Fahrenheit usage, a lookup table or conversion routine must
be used.
TEMPERATURE/DATA RELATIONSHIP (UNIT =
°C)
MSB
(64h)
BIT 7
BIT 6
BIT 5
BIT 4
BIT 3
BIT 2
BIT 1
BIT 0
S
2
6
2
5
2
4
2
3
2
1
2
0
LSB
(65h)
BIT 7
BIT 6
BIT 5
BIT 4
BIT 3
BIT 2
BIT 1
BIT 0
2
-1
2
-2
0
Table 2. Temperature/Data Relationship
TEMPERATURE
(°C)
DIGITAL OUTPUT
(Binary)
DIGITALOUTPUT
(hex)
+85
0101 0101 0000 0000
5500h
+75
0100 1011 0000 0000
4B00h
+0.5
0000 0000 1000 0000
0080h
0
0000 0000 0000 0000
0000h
-0.5
1111 1111 1000 0000
FF80h
-20
1110 1100 0000 0000
EC00h
-40
1101 1000 0000 0000
D800h
Note: Internal power dissipation raises the temperature above the ambient. The delta between ambient and the die temperature depends on
power consumption, PC board layout, and airflow.
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相关代理商/技术参数 |
参数描述 |
|---|---|
| DS4000GW/WBGA | 功能描述:IC OSC TCXO 16.8MHZ 24-BGA RoHS:否 类别:集成电路 (IC) >> 时钟/计时 - 可编程计时器和振荡器 系列:- 产品培训模块:Lead (SnPb) Finish for COTS Obsolescence Mitigation Program 标准包装:45 系列:- 类型:温度 - 补偿晶体振荡器（TCXO） 计数:- 频率:25MHz 电源电压:3.135 V ~ 3.465 V 电流 - 电源:1.5mA 工作温度:-40°C ~ 85°C 封装/外壳:16-SOIC（0.295"，7.50mm 宽） 包装:管件 供应商设备封装:16-SOIC W 安装类型:表面贴装 |
| DS4000GWN/WBGA | 制造商:Rochester Electronics LLC 功能描述: 制造商:Maxim Integrated Products 功能描述: |
| DS4000KI/WBGA | 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 |
| DS4000KIN/WBGA | 制造商:Maxim from Components Direct 功能描述:MAXIM DS4000KIN/WBGA OSCILLATORS - Trays 制造商:Maxim 功能描述:Maxim DS4000KIN/WBGA Oscillators |
| DS4000N | 制造商:DALLAS 制造商全称:Dallas Semiconductor 功能描述:Digitally Controlled TCXO |
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