13 FN7905.0 August 19, 2011 Functional Pin Descriptions Potentiometers Pins RHI
鍙冩暩(sh霉)璩囨枡
鍨嬭櫉锛� ISL23448TFVZ-TK
寤犲晢锛� Intersil
鏂囦欢闋佹暩(sh霉)锛� 5/21闋�
鏂囦欢澶�?銆�?/td> 0K
鎻忚堪锛� IC DGTL POT 4CH 100K 20TSSOP
鐢�(ch菐n)鍝佸煿瑷撴ā濉婏細 Solutions for Industrial Control Applications
妯欐簴鍖呰锛� 1,000
绯诲垪锛� XDCP™
鎺ョ墖锛� 128
闆婚樆锛堟瓙濮嗭級锛� 100k
闆昏矾鏁�(sh霉)锛� 4
婧害绯绘暩(sh霉)锛� 妯欐簴鍊� 45 ppm/°C
瀛樺劜鍣ㄩ鍨嬶細 鏄撳け
鎺ュ彛锛� 4 绶� SPI锛堣姱鐗囬伕鎿囷級
闆绘簮闆诲锛� 1.2 V ~ 5.5 V锛�1.7 V ~ 5.5 V
宸ヤ綔婧害锛� -40°C ~ 125°C
瀹夎椤炲瀷锛� 琛ㄩ潰璨艰
灏佽/澶栨锛� 14-TSSOP锛�0.173"锛�4.40mm 瀵級
渚涙噳鍟嗚ō鍌欏皝瑁濓細 20-TSSOP
鍖呰锛� 甯跺嵎 (TR)
ISL23448
13
FN7905.0
August 19, 2011
Functional Pin Descriptions
Potentiometers Pins
RHI AND RLI
The high (RHi, i = 0, 1, 2, 3) and low (RLi, i = 0, 1, 2, 3) terminals
of the ISL23448 are equivalent to the fixed terminals of a
mechanical potentiometer. RHi and RLi are referenced to the
relative position of the wiper and not the voltage potential on the
terminals. With WRi set to 127 decimal, the wiper will be closest
to RHi, and with the WRi set to 0, the wiper is closest to RLi.
RWI
RWi (i = 0, 1, 2, 3) 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 WRi register.
Power Pins
VCC
Power terminal for the potentiometer section analog power
source. Can be any value needed to support the voltage range of
the DCP pins, from 1.7V to 5.5V, independent of the VLOGIC
voltage.
Bus Interface Pins
SERIAL CLOCK (SCK)
This input is the serial clock of the SPI serial interface.
SERIAL DATA INPUT (SDI)
The SDI is a serial data input pin for SPI interface. It receives
operation code, wiper address and data from the SPI remote
host device. The data bits are shifted in at the rising edge of the
serial clock SCK, while the CS input is low.
FIGURE 21. WIPER LARGE SIGNAL SETTLING TIME
FIGURE 22. POWER-ON START-UP IN VOLTAGE DIVIDER MODE
FIGURE 23. 10k -3dB CUT OFF FREQUENCY
FIGURE 24. STANDBY CURRENT vs TEMPERATURE
Typical Performance Curves (Continued)
1V/DIV
0.2s/DIV
WIPER
CS
0.5V/DIV
20s/DIV
VCC
WIPER
0.5V/DIV, 0.2s/DIV
-3dB FREQUENCY = 1.437MHz AT MIDDLE TAP
CH1: RH TERMINAL
CH2: RW TERMINAL
0
0.2
0.4
0.6
0.8
1.0
1.2
1.4
1.6
1.8
-40
-15
10
35
60
85
110
VCC = 1.7V, VLOGIC = 1.2V
VCC = 5.5V, VLOGIC = 5.5V
S
T
A
N
D
B
Y
C
U
R
E
N
T
I C
C
(
A
)
TEMPERATURE (掳C)
鐩搁棞PDF璩囨枡
PDF鎻忚堪
DS1010-125 IC DELAY LINE 10TAP 125NS 14-DIP
VE-24J-MW CONVERTER MOD DC/DC 36V 100W
ISL23448TFRZ-TK IC DGTL POT 4CH 100K 20QFN
DS1010-80 IC DELAY LINE 10TAP 80NS 14-DIP
VE-244-MX-B1 CONVERTER MOD DC/DC 48V 75W
鐩搁棞浠ｇ悊鍟�/鎶€琛撳弮鏁�(sh霉)
鍙冩暩(sh霉)鎻忚堪
ISL23448UFRZ 鍔熻兘鎻忚堪:鏁�(sh霉)瀛楅浕浣嶈▓ IC 128 TAP VOLATILE SPI QD FL RNG DCP 20LD RoHS:鍚� 鍒堕€犲晢:Maxim Integrated 闆婚樆:200 Ohms 婧害绯绘暩(sh霉):35 PPM / C 瀹瑰樊:25 % POT 鏁�(sh霉)閲�:Dual 姣� POT 鍒嗘帴闋�:256 寮у埛瀛樺劜鍣�:Volatile 绶╂矕鍒�: 鏁�(sh霉)瀛楁帴鍙�:Serial (3-Wire, SPI) 鎻忚堪/鍔熻兘:Dual Volatile Low Voltage Linear Taper Digital Potentiometer 宸ヤ綔闆绘簮闆诲:1.7 V to 5.5 V 闆绘簮闆绘祦:27 uA 鏈€澶у伐浣滄韩搴�:+ 125 C 瀹夎棰ㄦ牸:SMD/SMT 灏佽 / 绠遍珨:TQFN-16 灏佽:Reel
ISL23448UFRZ-T7A 鍔熻兘鎻忚堪:鏁�(sh霉)瀛楅浕浣嶈▓ IC 128 TAPVOLATILE SPI QUAD RNG IND 20LD RoHS:鍚� 鍒堕€犲晢:Maxim Integrated 闆婚樆:200 Ohms 婧害绯绘暩(sh霉):35 PPM / C 瀹瑰樊:25 % POT 鏁�(sh霉)閲�:Dual 姣� POT 鍒嗘帴闋�:256 寮у埛瀛樺劜鍣�:Volatile 绶╂矕鍒�: 鏁�(sh霉)瀛楁帴鍙�:Serial (3-Wire, SPI) 鎻忚堪/鍔熻兘:Dual Volatile Low Voltage Linear Taper Digital Potentiometer 宸ヤ綔闆绘簮闆诲:1.7 V to 5.5 V 闆绘簮闆绘祦:27 uA 鏈€澶у伐浣滄韩搴�:+ 125 C 瀹夎棰ㄦ牸:SMD/SMT 灏佽 / 绠遍珨:TQFN-16 灏佽:Reel
ISL23448UFRZ-TK 鍔熻兘鎻忚堪:鏁�(sh霉)瀛楅浕浣嶈▓ IC 128 TAP VOLATILE SPI QD FL RNG DCP 20LD RoHS:鍚� 鍒堕€犲晢:Maxim Integrated 闆婚樆:200 Ohms 婧害绯绘暩(sh霉):35 PPM / C 瀹瑰樊:25 % POT 鏁�(sh霉)閲�:Dual 姣� POT 鍒嗘帴闋�:256 寮у埛瀛樺劜鍣�:Volatile 绶╂矕鍒�: 鏁�(sh霉)瀛楁帴鍙�:Serial (3-Wire, SPI) 鎻忚堪/鍔熻兘:Dual Volatile Low Voltage Linear Taper Digital Potentiometer 宸ヤ綔闆绘簮闆诲:1.7 V to 5.5 V 闆绘簮闆绘祦:27 uA 鏈€澶у伐浣滄韩搴�:+ 125 C 瀹夎棰ㄦ牸:SMD/SMT 灏佽 / 绠遍珨:TQFN-16 灏佽:Reel
ISL23448UFVZ 鍔熻兘鎻忚堪:鏁�(sh霉)瀛楅浕浣嶈▓ IC 128 TAP VOLATILE SPI QD FL RNG DCP 20LD RoHS:鍚� 鍒堕€犲晢:Maxim Integrated 闆婚樆:200 Ohms 婧害绯绘暩(sh霉):35 PPM / C 瀹瑰樊:25 % POT 鏁�(sh霉)閲�:Dual 姣� POT 鍒嗘帴闋�:256 寮у埛瀛樺劜鍣�:Volatile 绶╂矕鍒�: 鏁�(sh霉)瀛楁帴鍙�:Serial (3-Wire, SPI) 鎻忚堪/鍔熻兘:Dual Volatile Low Voltage Linear Taper Digital Potentiometer 宸ヤ綔闆绘簮闆诲:1.7 V to 5.5 V 闆绘簮闆绘祦:27 uA 鏈€澶у伐浣滄韩搴�:+ 125 C 瀹夎棰ㄦ牸:SMD/SMT 灏佽 / 绠遍珨:TQFN-16 灏佽:Reel
ISL23448UFVZ-T7A 鍔熻兘鎻忚堪:鏁�(sh霉)瀛楅浕浣嶈▓ IC 128 TAPVOLATILE SPI QUAD RNG IND 20LD RoHS:鍚� 鍒堕€犲晢:Maxim Integrated 闆婚樆:200 Ohms 婧害绯绘暩(sh霉):35 PPM / C 瀹瑰樊:25 % POT 鏁�(sh霉)閲�:Dual 姣� POT 鍒嗘帴闋�:256 寮у埛瀛樺劜鍣�:Volatile 绶╂矕鍒�: 鏁�(sh霉)瀛楁帴鍙�:Serial (3-Wire, SPI) 鎻忚堪/鍔熻兘:Dual Volatile Low Voltage Linear Taper Digital Potentiometer 宸ヤ綔闆绘簮闆诲:1.7 V to 5.5 V 闆绘簮闆绘祦:27 uA 鏈€澶у伐浣滄韩搴�:+ 125 C 瀹夎棰ㄦ牸:SMD/SMT 灏佽 / 绠遍珨:TQFN-16 灏佽:Reel
鐧�(f膩)甯冪穵鎬ラ噰璩硷紝3鍒嗛悩宸﹀彸鎮ㄥ皣寰楀埌鍥炲京銆�

閲囪臣闇€姹�

(鑻ュ彧閲囪臣涓€姊濆瀷铏�锛屽～瀵竴琛屽嵆鍙�)

鐧�(f膩)甯冩垚鍔�锛佹偍鍙互绻肩簩(x霉)鐧�(f膩)甯冮噰璩笺€備篃鍙互閫插叆鎴戠殑鍚庤嚭锛屾煡鐪嬪牨鍍�

鐧�(f膩)甯冩垚鍔�锛佹偍鍙互绻肩簩(x霉)鐧�(f膩)甯冮噰璩笺€備篃鍙互閫插叆鎴戠殑鍚庤嚭锛屾煡鐪嬪牨鍍�

*鍨嬭櫉 *鏁�(sh霉)閲� 寤犲晢 鎵硅櫉 灏佽
娣诲姞鏇村閲囪臣

鎴戠殑鑱�(li谩n)绯绘柟寮�

*
*
*
    • 閹达拷
    • 闁插洩鍠�
    • 閹兼粎鍌�
    • 娴兼艾鎲�