- 您現(xiàn)在的位置：買賣IC網(wǎng) > PDF目錄384531 > ISL90726WIE6Z (INTERSIL CORP) Digitally Controlled Potentiometer (XDCP) PDF資料下載
參數(shù)資料
| 型號： | ISL90726WIE6Z |
| 廠商： | INTERSIL CORP |
| 元件分類： | 數(shù)字電位計 |
| 英文描述： | Digitally Controlled Potentiometer (XDCP) |
| 中文描述： | 10K DIGITAL POTENTIOMETER, 2-WIRE SERIAL CONTROL INTERFACE, 128 POSITIONS, PDSO6 |
| 封裝： | LEAD FREE, MO-203-AB, SC-70, 6 PIN |
| 文件頁數(shù)： | 5/8頁 |
| 文件大?。?/td> | 226K |
| 代理商： | ISL90726WIE6Z |
5
FN8244.1
August 3, 2005
SDA vs SCL Timing
NOTES:
1. Typical values are for T
A
= 25°C and 3.3V supply voltage.
2. LSB: [V(R
W
)
127
– V(R
W
)
0
]
/
127. V(R
W
)
127
and V(R
W
)
0
are V(R
W
) for the DCP register set to FF hex and 00 hex respectively. LSB is the
incremental voltage when changing from one tap to an adjacent tap.
3. ZS error = V(R
W
)
0
/
LSB.
4. FS error = [V(R
W
)
127
– V
CC
]
/
LSB.
5. MI =
|
R
127
– R
0
|
/
127. R
127
and R
0
are the measured resistances for the DCP register set to FF hex and 00 hex respectively.
Roffset = R
0
/
MI, when measuring between R
W
and R
L
.
6. Roffset = R
127
/
MI, when measuring between R
W
and R
H
.
7. RDNL = (R
i
– R
i-1
)
/
MI, for i = 32 to 127.
8. RINL = [R
i
– (MI i) – R
0
]
/
MI, for i = 32 to 127.
6
125°C
9.
for i = 32 to 127, T = -40°C to 85°C. Max( ) is the maximum value of the resistance and Min ( ) is the
minimum value of the resistance over the temperature range.
10. This parameter is not 100% tested.
11. V
IL
= 0V, V
IH
= V
CC.
12. These are I
2
C-specific parameters and are not directly tested. However, they are used in the device testing to validate specifications.
Principles of Operation
The ISL90726 is an integrated circuit incorporating one DCP
with its associated registers and an I
2
C serial interface
providing direct communication between a host and the
potentiometer.
DCP Description
The DCP is implemented with a combination of resistor
elements and CMOS switches. The physical ends of the
DCP are equivalent to the fixed terminals of a mechanical
potentiometer (R
H
and R
L
pins). The R
W
pin of the DCP is
connected to intermediate nodes, and is equivalent to the
wiper terminal of a mechanical potentiometer. The position
of the wiper terminal within the DCP is controlled by an 7-bit
volatile Wiper Register (WR). The DCP has its own WR.
When the WR of the DCP contains all zeroes (WR<6:0>=
00h), its wiper terminal (R
W
) is closest to its “Low” terminal
(R
L
). When the WR of the DCP contains all ones
(WR<6:0>=7Fh), its wiper terminal (R
W
) is closest to its
“High” terminal (R
H
). As the value of the WR increases from
all zeroes (00h) to all ones (127 decimal), the wiper moves
monotonically from the position closest to R
L
to the position
closest to R
H
. R
H
is not connected to a device pin. The net
effect is the resistance between R
W
and R
L
increases
monotonically.
While the ISL90726 is being powered up, the WR is reset to
20h (64 decimal), which locates R
W
roughly at the center
between R
L
and R
H
.
The WR and IVR can be read or written directly using the
I
2
C serial interface as described in the following sections.
I
2
C Serial Interface
The ISL90726 supports bidirectional bus oriented protocol.
The protocol defines any device that sends data onto the
bus as a transmitter and the receiving device as the receiver.
The device controlling the transfer is a master and the
device being controlled is the slave. The master always
initiates data transfers and provides the clock for both
transmit and receive operations. Therefore, the ISL90726
operates as slave device in all applications.
All communication over the I
2
C interface is conducted by
sending the MSB of each byte of data first.
t
SU:STO
t
DH
t
HIGH
t
SU:STA
t
HD:STA
t
HD:DAT
t
SU:DAT
SCL
SDA
(INPUT TIMING)
SDA
(OUTPUT TIMING)
t
F
t
LOW
t
BUF
t
AA
t
R
TC
R
Max Ri
+
Min Ri
]
)
)
[
]
2
------------------------------–
----------------
×
=
ISL90726
相關(guān)PDF資料 |
PDF描述 |
|---|---|
| ISL90726WIE6Z-TK | Digitally Controlled Potentiometer (XDCP) |
| ISL90727UIE627Z-TK | Digitally Controlled Potentiometer |
| ISL90727WIE627Z-TK | Digitally Controlled Potentiometer |
| ISL90728WIE627Z-TK | Digitally Controlled Potentiometer |
| ISL90727 | Digitally Controlled Potentiometer (XDCP) |
相關(guān)代理商/技術(shù)參數(shù) |
參數(shù)描述 |
|---|---|
| ISL90726WIE6Z-TK | 制造商:INTERSIL 制造商全稱:Intersil Corporation 功能描述:Digitally Controlled Potentiometer (XDCP) |
| ISL90727 | 制造商:INTERSIL 制造商全稱:Intersil Corporation 功能描述:Digitally Controlled Potentiometer XDCP |
| ISL90727_06 | 制造商:INTERSIL 制造商全稱:Intersil Corporation 功能描述:Digitally Controlled Potentiometer |
| ISL90727UIE627Z | 功能描述:IC XDCP 128-TAP 50KOHM SC70-6 RoHS:是 類別:集成電路 (IC) >> 數(shù)據(jù)采集 - 數(shù)字電位器 系列:XDCP™ 標(biāo)準(zhǔn)包裝:2,500 系列:XDCP™ 接片:256 電阻（歐姆）:100k 電路數(shù):1 溫度系數(shù):標(biāo)準(zhǔn)值 ±300 ppm/°C 存儲器類型:非易失 接口:I²C（設(shè)備位址） 電源電壓:2.7 V ~ 5.5 V 工作溫度:0°C ~ 70°C 安裝類型:表面貼裝 封裝/外殼:14-TSSOP（0.173"，4.40mm 寬） 供應(yīng)商設(shè)備封裝:14-TSSOP 包裝:帶卷 (TR) |
| ISL90727UIE627Z-TK | 功能描述:IC POT DGTL 50K OHM SC70-6 RoHS:是 類別:集成電路 (IC) >> 數(shù)據(jù)采集 - 數(shù)字電位器 系列:XDCP™ 標(biāo)準(zhǔn)包裝:3,000 系列:DPP 接片:32 電阻（歐姆）:10k 電路數(shù):1 溫度系數(shù):標(biāo)準(zhǔn)值 300 ppm/°C 存儲器類型:非易失 接口:3 線串行（芯片選擇，遞增，增/減） 電源電壓:2.5 V ~ 6 V 工作溫度:-40°C ~ 85°C 安裝類型:表面貼裝 封裝/外殼:8-WFDFN 裸露焊盤 供應(yīng)商設(shè)備封裝:8-TDFN（2x3） 包裝:帶卷 (TR) |
發(fā)布緊急采購，3分鐘左右您將得到回復(fù)。