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ISL54216IRTZ-T Datasheet(PDF) 9 Page - Intersil Corporation |
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ISL54216IRTZ-T Datasheet(HTML) 9 Page - Intersil Corporation |
9 / 17 page 9 FN7701.0 September 27, 2010 POWER The power supply connected at VDD (pin 11) provides power to the ISL54216 part. Its voltage should be kept in the range of 2.7V to 4.6V. In a typical application, VDD will be in the range of 2.7V to 4.3V and will be connected to the battery or LDO of the MP3 player or cellphone. A 0.01µF or 0.1µF decoupling capacitor should be connected from the VDD pin to ground to filter out any power supply noise from entering the part. The capacitor should be located as close to the VDD pin as possible. LOGIC CONTROL The state of the ISL54216 device is determined by the voltage at the C1 pin (pin 9) and the C0 pin (pin 10). Refer to the “Truth Table” on page 2. The C1 pin and C0 pin are internally pulled low through 4MΩ resistors to ground and can be tri-stated or left floating. The C1 pin and C0 pin can be driven with a voltage that is higher than the VDD supply voltage. They can be driven up to 5.25V with the VDD supply in the range of 2.7V to 4.6V. Driving the logic higher than the supply rail will cause the logic current to increase. With VDD = 2.7V and VLOGIC = 5.25V, ILOGIC current is approximately 5.5µA. Logic Control Voltage Levels With VDD in the range of 2.7V to 3.6V the logic levels are: C1, C0 = Logic “0” (Low) when ≤ 0.5V or Floating. C1, C0 = Logic “1” (High) when ≥ 1.4V. ALL SWITCHES OFF Mode If the C1 pin = Logic “0” and C0 pin = Logic “0” the part will be in the ALL SWITCHES OFF mode. In this mode, the 3D- and 3D+ data switches, the 2D- and 2D+ data switches, and the 1D- and 1D+ data switches will be OFF (high impedance). The COM pins can accommodate signals that swing below ground by as much as -2V. This allows an audio CODEC to be connected to the COM pins when the device is in the all off state. USB/UART1 Mode If the C1 pin = Logic “0” and C0 pin = Logic “1” the part will go into USB/UART1 mode. The 1D- and 1D+ switches are ON and the 2D- and 2D+ switches and 3D- and 3D+ will be OFF (high impedance). USB2 Mode If the C1 = Logic “1” and C0 pin = Logic “0” the part will be in the USB/UART2 mode. The 2D- and 2D+ switches will be ON and the 1D- and 1D+ switches and the 3D- and 3D+ will be OFF (high impedance). USB3 Mode If the C1 pin = Logic “1” and C0 pin = Logic “1” the part will be in the USB/UART3 mode. The 3D- and 3D+ switches are ON, and the 1D- and 1D+ switches and 2D- and 2D+ switches will be OFF (high impedance). Typical Performance Curves T A = +25°C, Unless Otherwise Specified. FIGURE 7. ON-RESISTANCE vs SUPPLY VOLTAGE vs SWITCH VOLTAGE FIGURE 8. ON-RESISTANCE vs SWITCH VOLTAGE vs TEMPERATURE 5.8 5.9 6.0 6.1 6.2 6.3 6.4 6.5 6.6 6.7 0 0.05 0.10 0.15 0.20 0.25 0.30 0.35 0.40 VCOM (V) ICOM = 40mA VDD = 2.7V VDD = 3.0V VDD = 3.3V VDD = 4.0V VDD = 4.6V VDD = 3.6V 3 4 5 6 7 8 9 0 0.05 0.10 0.15 0.20 0.25 0.30 0.35 0.40 VCOM (V) +85°C -40°C ICOM = 40mA +25°C VDD = 2.7V ISL54216 |
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