參數(shù)資料
型號: ISL22313UFU10Z-TK
廠商: Intersil
文件頁數(shù): 2/15頁
文件大?。?/td> 0K
描述: IC POT DGTL 256TP LN LP 10-MSOP
標準包裝: 1,000
系列: XDCP™
接片: 256
電阻(歐姆): 50k
電路數(shù): 1
溫度系數(shù): 標準值 50 ppm/°C
存儲器類型: 非易失
接口: I²C(設備位址)
電源電壓: 2.25 V ~ 5.5 V
工作溫度: -40°C ~ 125°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-MSOP
包裝: 帶卷 (TR)
10
FN6421.0
July 17, 2007
Pin Description
Potentiometers Pins
RH and RL
The high (RH) and low (RL) terminals of the ISL22313 are
equivalent to the fixed terminals of a mechanical
potentiometer. RH and RL are referenced to the relative
position of the wiper and not the voltage potential on the
terminals. With WR set to 255 decimal, the wiper will be
closest to RH, and with the WR set to 0, the wiper is closest
to RL.
RW
RW is the wiper terminal, and it is equivalent to the movable
terminal of a mechanical potentiometer. The position of the
wiper within the array is determined by the WR register.
Bus Interface Pins
Serial Data Input/Output (SDA)
The SDA is a bidirectional serial data input/output pin for I2C
interface. It receives device address, operation code, wiper
address and data from an I2C external master device at the
rising edge of the serial clock SCL, and it shifts out data after
each falling edge of the serial clock.
SDA requires an external pull-up resistor, since it is an open
drain input/output.
Serial Clock (SCL)
This input is the serial clock of the I2C serial interface. SCL
requires an external pull-up resistor, since it is an open drain
input.
FIGURE 11. TC FOR RHEOSTAT MODE IN ppm
FIGURE 12. FREQUENCY RESPONSE (1MHz)
FIGURE 13. MIDSCALE GLITCH, CODE 7Fh TO 80h
FIGURE 14. LARGE SIGNAL SETTLING TIME
Typical Performance Curves (Continued)
0
100
200
300
400
500
16
66
116
166
216
TAP POSITION (DECIMAL)
TCr
(ppm
/C)
50k
10k
OUTPUT
INPUT
WIPER AT MID POINT (POSITION 80h)
RTOTAL = 10kΩ
SCL
WIPER
CS
WIPER UNLOADED,
MOVEMENT FROM 0h to FFh
ISL22313
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