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ISL23348TFRZ-T7A PDF预览

ISL23348TFRZ-T7A

更新时间： 2024-11-05 15:41:11
品牌 Logo 应用领域
瑞萨 - RENESAS 转换器
页数 文件大小 规格书
19页 1148K
描述
Quad, 128 Tap, Low Voltage Digitally Controlled Potentiometer (XDCP™); QFN20, TSSOP20; Temp Range: -40° to 125°C

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ISL23348TFRZ-T7A 技术参数

是否Rohs认证：符合生命周期：Obsolete
零件包装代码：QFN, TSSOP包装说明：QCCN, LCC20,.12X.16,20
针数：20, 20Reach Compliance Code：compliant
ECCN代码：EAR99HTS代码：8542.39.00.01
Factory Lead Time：1 week风险等级：5.81
Is Samacsys：N转换器类型：DIGITAL POTENTIOMETER
JESD-30 代码：R-PQCC-N20JESD-609代码：e3
湿度敏感等级：3端子数量：20
最高工作温度：125 °C最低工作温度：-40 °C
封装主体材料：PLASTIC/EPOXY封装代码：QCCN
封装等效代码：LCC20,.12X.16,20封装形状：RECTANGULAR
封装形式：CHIP CARRIER峰值回流温度（摄氏度）：260
电源：1.5/5,3/5 V认证状态：Not Qualified
子类别：Digital Potentiometers表面贴装：YES
技术：CMOS温度等级：AUTOMOTIVE
端子面层：Matte Tin (Sn) - annealed端子形式：NO LEAD
端子节距：0.5 mm端子位置：QUAD
处于峰值回流温度下的最长时间：NOT SPECIFIEDBase Number Matches：1

ISL23348TFRZ-T7A 数据手册

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DATASHEET  
NOT RECOMMENDED  
RECOMMENDED REP  
FOR NEW DESIGNS  
LACEMENT PART  
ISL23425  
ISL23348  
FN7903  
Rev 1.00  
August 24, 2011  
Quad, 128 Tap, Low Voltage Digitally Controlled Potentiometer (XDCP™)  
The ISL23348 is a volatile, low voltage, low noise, low power,  
Features  
128 tap, quad digitally controlled potentiometer (DCP) with an  
I C Bus™ interface. It integrates four DCP cores, wiper  
2
• Four potentiometers per package  
switches and control logic on a monolithic CMOS integrated  
circuit.  
• 128 resistor taps  
• 10kΩ50kΩor 100kΩ total resistance  
2
Each digitally controlled potentiometer is implemented with a  
combination of resistor elements and CMOS switches. The  
position of the wipers are controlled by the user through the  
• I C serial interface  
- No additional level translator for low bus supply  
- Three address pins allow up to eight devices per bus  
2
I C bus interface. Each potentiometer has an associated  
volatile Wiper Register (WRi, i = 0, 1, 2, 3) that can be directly  
written to and read by the user. The contents of the WRi  
controls the position of the wiper. When powered on, the wiper  
of each DCP will always commence at mid-scale (64 tap  
position).  
• Maximum supply current without serial bus activity  
(standby)  
- 5µA @ V and V  
CC  
= 5V  
LOGIC  
LOGIC  
- 2µA @ V and V  
CC  
= 1.7V  
• Shutdown mode  
The low voltage, low power consumption, and small package  
of the ISL23348 make it an ideal choice for use in battery  
- Forces the DCP into an end-to-end open circuit and RWi is  
connected to RLi internally  
operated equipment. In addition, the ISL23348 has a V  
LOGIC  
pin allowing down to 1.2V bus operation, independent from the  
value. This allows for low logic levels to be connected  
- Reduces power consumption by disconnecting the DCP  
resistor from the circuit  
V
CC  
directly to the ISL23348 without passing through a voltage  
level shifter.  
• Power supply  
- V = 1.7V to 5.5V analog power supply  
CC  
2
The DCP can be used as a three-terminal potentiometer or as a  
two-terminal variable resistor in a wide variety of applications  
including control, parameter adjustments, and signal processing.  
- V  
LOGIC  
= 1.2V to 5.5V I C bus/logic power supply  
• Wiper resistance: 70Ω typical @ V = 3.3V  
CC  
• Power-on preset to mid-scale (64 tap position)  
• Extended industrial temperature range: -40°C to +125°C  
• 20 Ld TSSOP or 20 QFN packages  
Applications  
• Power supply margining  
• Trimming sensor circuits  
• Pb-free (RoHS compliant)  
• Gain adjustment in battery powered instruments  
• RF power amplifier bias compensation  
10000  
8000  
6000  
4000  
VREF  
RH1  
-
VREF_M  
1 DCP  
RW1  
OF  
+
ISL23348  
ISL28114  
2000  
0
RL1  
0
32  
64  
96  
128  
TAP POSITION (DECIMAL)  
FIGURE 2. V  
ADJUSTMENT  
FIGURE 1. FORWARD AND BACKWARD RESISTANCE vs TAP  
REF  
POSITION, 10kΩ DCP  
FN7903 Rev 1.00  
August 24, 2011  
Page 1 of 19  
1234567...19

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