- 您现在的位置：买卖IC网 > PDF目录1916 > DS3908N+T&R (Maxim Integrated Products)IC POT DUAL DIGITAL 14-TDFN PDF资料下载
参数资料
| 型号： | DS3908N+T&R |
| 厂商： | Maxim Integrated Products |
| 文件页数： | 9/11页 |
| 文件大小： | 0K |
| 描述： | IC POT DUAL DIGITAL 14-TDFN |
| 产品培训模块： | Lead (SnPb) Finish for COTS Obsolescence Mitigation Program |
| 标准包装： | 2,500 |
| 接片： | 64 |
| 电阻（欧姆）： | 100k |
| 电路数： | 2 |
| 温度系数： | 标准值 50 ppm/°C |
| 存储器类型： | 非易失 |
| 接口： | I²C（设备位址） |
| 电源电压： | 3 V ~ 5.5 V |
| 工作温度： | -40°C ~ 85°C |
| 安装类型： | 表面贴装 |
| 封装/外壳： | 14-WFDFN 裸露焊盘 |
| 供应商设备封装： | 14-TDFN-EP（3x3） |
| 包装： | 带卷 (TR) |
DS3908
Dual, 64-Position Nonvolatile Digital
Potentiometer with Buffered Outputs
_____________________________________________________________________
7
I2C Slave Address and Address Pins
The DS3908’s I2C slave address is determined by the
state of the A0, A1, and A2 address pins as shown in
the pin configuration (see Figure 1). Address pins con-
nected to GND result in a ‘0’ in the corresponding bit
position in the slave address. Conversely, address pins
connected to VCC result in a ‘1’ in the corresponding bit
positions. I2C communication is described in detail in
the I2C Serial Interface Description section.
Potentiometer Control
The potentiometers of the DS3908 have 64 taps with 63
resistive elements separating them. Thus, the most and
least significant wiper positions connect the amplifier to
the voltages at the high and low terminals of the poten-
tiometer, respectively.
The potentiometers of the DS3908 are controlled by
communicating with the following registers:
*THE SLAVE ADDRESS IS DETERMINED BY
ADDRESS PINS A0, A1, AND A2.
1
MSB
SLAVE
ADDRESS*
READ/WRITE
BIT
LSB
01
0
A2
A1
A0
R/W
Figure 1. DS3908 Slave Address Byte
Table 1. Potentiometer Registers
ADDRESS
POTENTIOMETER
I2C FUNCTIONS
NUMBER OF
POSITIONS*
DEFAULTS
F8h
Pot 0
Read/Write
64 (00h to 3Fh)
1Fh
F9h
Pot 1
Read/Write
64 (00h to 3Fh)
1Fh
FAh
Pot 0 and Pot 1
Write Only
64 (00h to 3Fh)
—
*The two most significant bits of each potentiometer position register are ignored. Writing values greater than 3Fh to any of the
potentiometer registers will result in a valid 6-bit position, without regard to the value of the most significant two bits. Example:
Register values C2h, 82h, 42h, and 02h are all potentiometer position 2.
相关PDF资料 |
PDF描述 |
|---|---|
| DS3930E | IC POT NV HEX I/O MEM 20-TSSOP |
| DS4301Z-200 | IC POT DIG NV 200K 32POS 8-SOIC |
| DS4520E+TRL | IC I/O EXPANDER I2C 9B 16TSSOP |
| DS4550E+ | IC I/O EXPANDER I2C 9B 20TSSOP |
| DS4830T+ | MCU 16B CTRL CALIBR MON 40-TQFN |
相关代理商/技术参数 |
参数描述 |
|---|---|
| DS3911 | 制造商:MAXIM 制造商全称:Maxim Integrated Products 功能描述:Temperature-Controlled, Nonvolatile, I2C Quad DAC |
| DS3911T+ | 功能描述:ADC / DAC多通道 Fast APD Bias RoHS:否 制造商:Texas Instruments 转换速率: 分辨率:8 bit 接口类型:SPI 电压参考: 电源电压-最大:3.6 V 电源电压-最小:2 V 最大工作温度:+ 85 C 安装风格:SMD/SMT 封装 / 箱体:VQFN-40 |
| DS3911T+T | 功能描述:ADC / DAC多通道 Fast APD Bias RoHS:否 制造商:Texas Instruments 转换速率: 分辨率:8 bit 接口类型:SPI 电压参考: 电源电压-最大:3.6 V 电源电压-最小:2 V 最大工作温度:+ 85 C 安装风格:SMD/SMT 封装 / 箱体:VQFN-40 |
| DS3920 | 制造商:MAXIM 制造商全称:Maxim Integrated Products 功能描述:Fast Current Mirror |
| DS3920_1112 | 制造商:MAXIM 制造商全称:Maxim Integrated Products 功能描述:Fast Current Mirror |
发布紧急采购，3分钟左右您将得到回复。