参数资料
型号: DS4000A0N/WBGA
厂商: Maxim Integrated Products
文件页数: 15/16页
文件大小: 0K
描述: IC OSC TCXO 10MHZ 24BGA
标准包装: 1
类型: 温度 - 补偿晶体振荡器(TCXO)
频率: 10MHz
电源电压: 4.75 V ~ 5.25 V
电流 - 电源: 1.5mA
工作温度: -40°C ~ 85°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
8 of 16
DIGITAL TUNING THE BASE CRYSTAL FREQUENCY
When using the 2-wire interface for tuning the base frequency, the frequency tuning register is used. The frequency
tuning register contains two’s complement data. The data is used to add or subtract an offset from the crystal
loading register. When the tuning register is programmed with a value, the next temperature-update cycle sums the
programmed value with the factory-compensated value. This allows the user/system to digitally control the base
frequency by a microcontroller using the 2-wire protocol.
FREQUENCY TUNING REGISTER (66h)
Bit
7
6
5
4
3
2
1
0
Name
SIGN
FO6
FO5
FO4
FO3
FO2
FO1
FO0
Default
0
FOS[6:0], Frequency Offset: These bits are used to tune the base crystal frequency. Each bit represents
approximately 0.08ppm and, therefore, for a value of 07FH, pushes or pulls the base frequency by approximately
10.16ppm.
SIGN, Sign Bit: This bit is used to determine whether to add or subtract the frequency offset from the crystal
loading.
Table 1. Frequency Tuning Relationship
CALCULATED
FREQUENCY OFFSET
(ppm)
DIGITAL DATA
(Binary)
DIGITAL DATA
(hex)
-10.16
0111 1111
7Fh
-8.00
0110 0100
64h
-5.28
0100 0010
42h
-1.84
0001 0111
17h
-0.08
0000 0001
01h
0.0
0000 0000
00h
+0.08
1111 1111
FFh
+1.84
1110 1000
E8h
+5.28
1011 0011
B3h
+8.00
1001 1100
9Ch
+10.16
1000 0000
80h
相关PDF资料
PDF描述
VE-BND-IU-F4 CONVERTER MOD DC/DC 85V 200W
VE-B6J-IU-F1 CONVERTER MOD DC/DC 36V 200W
AD5243BRMZ50 IC POT DGTL DUAL 256POS 10-MSOP
IDT72V90823PFG IC DGTL SW ST-BUS/GCI 100-TQFP
MCP79401-I/ST IC RTCC 64B SRAM EUI-48 8-TSSOP
相关代理商/技术参数
参数描述
DS4000B 功能描述:电线导管 DS4000 BASE 10 FT. RoHS:否 制造商:Panduit 类型:Slotted SideWall Open finger design wiring cut 材料:Polypropylene 颜色:Light Gray 大小: 最大光束直径: 抗拉强度: 外部导管宽度:25 mm 外部导管高度:25 mm
DS4000C-BK 功能描述:电线导管 DS4000 COVER MATTE BLACK - 5FT RoHS:否 制造商:Panduit 类型:Slotted SideWall Open finger design wiring cut 材料:Polypropylene 颜色:Light Gray 大小: 最大光束直径: 抗拉强度: 外部导管宽度:25 mm 外部导管高度:25 mm
DS4000C-BZ 功能描述:电线导管 DS4000 COVER METALLIC BRONZE -5FT RoHS:否 制造商:Panduit 类型:Slotted SideWall Open finger design wiring cut 材料:Polypropylene 颜色:Light Gray 大小: 最大光束直径: 抗拉强度: 外部导管宽度:25 mm 外部导管高度:25 mm
DS4000C-DG 功能描述:电线导管 DS4000 CVR DESIGNER GRAY - 5FT RoHS:否 制造商:Panduit 类型:Slotted SideWall Open finger design wiring cut 材料:Polypropylene 颜色:Light Gray 大小: 最大光束直径: 抗拉强度: 外部导管宽度:25 mm 外部导管高度:25 mm
DS4000C-DV 功能描述:电线导管 DS4000 CVR DESIGNER IVORY - 5FT RoHS:否 制造商:Panduit 类型:Slotted SideWall Open finger design wiring cut 材料:Polypropylene 颜色:Light Gray 大小: 最大光束直径: 抗拉强度: 外部导管宽度:25 mm 外部导管高度:25 mm