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參數(shù)資料
| 型號： | DS3906U+T&R |
| 廠商： | Maxim Integrated Products |
| 文件頁數(shù)： | 12/14頁 |
| 文件大?。?/td> | 0K |
| 描述： | IC RESIST VAR TRPL 10USOP |
| 產(chǎn)品培訓模塊： | Lead (SnPb) Finish for COTS Obsolescence Mitigation Program |
| 標準包裝： | 3,000 |
| 接片： | 64 |
| 電阻（歐姆）： | 1.45k，2.54k，2.54k |
| 電路數(shù)： | 3 |
| 溫度系數(shù)： | 標準值 60 ppm/°C |
| 存儲器類型： | 非易失 |
| 接口： | I²C（設備位址） |
| 電源電壓： | 2.7 V ~ 5.5 V |
| 工作溫度： | -40°C ~ 85°C |
| 安裝類型： | 表面貼裝 |
| 封裝/外殼： | 10-TFSOP，10-MSOP（0.118"，3.00mm 寬） |
| 供應商設備封裝： | 10-µMAX |
| 包裝： | 帶卷 (TR) |
DS3906
Triple NV Low Step Size Variable
Resistor Plus Memory
_____________________________________________________________________
7
Detailed Description
The DS3906 contains three variable resistors plus a
user EEPROM. The block diagram illustrates these in
addition to the registers that control the resistors. The
following sections provide detailed information about
the DS3906.
Memory Organization
The DS3906 contains 16 bytes of User EEPROM plus 3
NV resistor registers. Refer to Table 1. Communication
with the memory/registers is achieved through the I2C-
compatible serial interface and is described in subse-
quent sections.
Resistor Registers/Settings
Each of the three resistors in the DS3906 has its own
control register used to set the resistor position. Refer
to the block diagram and Table 2. Each resistor has 64
positions plus a high impedance state. The nominal
resistance values for each position is listed in Table 3.
Resistors 0 and 1 have the same full-scale resistance,
which is different than resistor 2. As shown in Table 3,
the resistors have a pseudo-log response (resistance
vs. position) when used without an external parallel
resistor. Valid resistor settings are 00h to 3Fh. Writing a
value greater than 3Fh to any of the resistor registers
Pin Description
PIN
NAME
FUNCTION
1A1
I
2C Address Input. Inputs A0, A1, and A2 determine the I2C slave address of the device.
2
SDA
I
2C Serial Data Open-Drain Input/Output
3
SCL
I
2C Serial Clock Input
4VCC
Power Supply Voltage
5
GND
Ground
6H2
High Terminal of Resistor 2
7H1
High Terminal of Resistor 1
8H0
High Terminal of Resistor 0
9A0
10
A2
I
2C Address Input. Inputs A0, A1, and A2 determine the I2C slave address of the device.
Block Diagram
I2C
INTERFACE
USER
EEPROM
16 BYTES
(00h-0Fh)
RHIZ CONTROL
EEPROM
RES 0
2.54k
H0
F8h
MSB
6
LSB
GND
SCL
SDA
A0
VCC
DS3906
RESISTOR 0
RHIZ CONTROL
RES 1
2.54k
H1
F9h
MSB
LSB
RESISTOR 1
RHIZ CONTROL
RES 2
1.45k
H2
FAh
MSB
LSB
RESISTOR 2
6
A1
A2
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| DS3908N+T&R | 功能描述:數(shù)字電位計 IC Dual 64-Pos w/Buffered Output RoHS:否 制造商:Maxim Integrated 電阻:200 Ohms 溫度系數(shù):35 PPM / C 容差:25 % POT 數(shù)量:Dual 每 POT 分接頭:256 弧刷存儲器:Volatile 緩沖刷: 數(shù)字接口:Serial (3-Wire, SPI) 描述/功能:Dual Volatile Low Voltage Linear Taper Digital Potentiometer 工作電源電壓:1.7 V to 5.5 V 電源電流:27 uA 最大工作溫度:+ 125 C 安裝風格:SMD/SMT 封裝 / 箱體:TQFN-16 封裝:Reel |
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