BCT4699ETE-TR

December, 2013, REV1.1 BCT4699 0.5Ω, 3.3V Quad-SPDT Analog Switch General Description Features The BCT4699 is configured as a quad-SPDT switch with two common control inputs. Each digital input controls two pairs of SPDT switches. The switches are fully bi-directional, allowing both multiplexing and de-multiplexing operation. Break-before-make operation is guaranteed. The device operates from a +2.5V to +5.0V supply C to +85° C and over the extended -40° temperature range. It is offered in 16-pin 3mm x 3mm TQFN package. ♦ Low 0.5Ω RON （+2.7Vsupply） ♦ 0.05Ω On-Resistance Flatness ♦ Excellent 0.05Ω On-Resistance Matching ♦ Low 0.02% THD into 8Ω ♦ Low 0.015% THD into 32Ω ♦ Rail-to-Rail Signal Switching Range ♦ Fast Switching Speed：20nsTYP at 3.3V ♦ High Off Isolation: -66dB ♦ Crosstalk Rejection: -86dB ♦ -3dB bandwidth: 100MHz ♦ Audio Signal Routing ♦ Space-Saving, 3mm x 3mm TQFN Package Applications Cell Phones Digital Still Cameras PDAs and Palmtop Devices MP3/MP4 Players PCMCIA Cards Modems Hard Drives Ordering Information Ordering Code Package Description Temp Range Top Marking BCT4699ETE 16PIN TQFN .–40° C to +85° C XXXXX Notes: XXX=INTERNAL CODE XX=FOUNDRY NAME Pin Configurations Typical Application Circuit www.broadchip.com December, 2013, REV1.1 0.5Ω，3.3V Quad-SPDT Analog Switch Absolute Maximum Ratings VCC, INA，INB to GND............... ..................-0.3V to +6.0V All Other Pins to GND (Note 1)...........-0.3V to (VCC + 0.3V) Continuous Current (NO_, NC_, COM_)................ ±400mA Peak Current (NO_, NC_, COM_) (pulsed at 1ms, 10% duty cycle)..............................±500mA Continuous Power Dissipation (TA = +70° C) C above +70° C) ……….....1.25W 16-Pin TQFN ( 15.6mW/° C to +85° C Operating Temperature Range ....................-40° Storage Temperature Range......................-65° C to +150° C C Junction Temperature...............................................+150° C Lead Temperature (soldering, 10s)...........................+300° Note 1: Signals on NO_, NC_, COM_ ， INA and INB exceeding VCC or GND are clamped by internal diodes. Limit forward-diode current to maxium current rating. Stresses beyond those listed under “Absolute Maximum Ratings” may cause permanent damage to the device. These are stress ratings only, and functional operation of the device at these or any other conditions beyond those indicated in the operational sections of the specifications is not implied. Exposure to absolute maximum rating conditions for extended periods may affect device reliability. Electrical Characteristics (VCC = 2.7V to 4.2V, TA = TMIN to TMAX, unless otherwise noted. Typical values are at VCC = 3V, TA = +25° C. (Note 2) Parameter Symbol Conditions Min Typ Max Units POWER SUPPLY Supply Voltage Range VCC Supply Current ICC 2.5 VCC= 3.6V, VIN_ = 0 or VCC, NO_ = NC_ = COM_ = floating 0.02 5.0 V 1 uA VCC V ANALOG SWITCH Analog Signal Range On-Resistance On-Resistance Match NO_, NC_, COM_ RON ΔRON VCC= 2.7V, ICOM_ = 100mA, VNO_ or VNC_ = 0 to VCC(3) TA= TMIN to TMAX VCC= 2.7V, TA = +25°C ICOM_ = VNO_ or 100mA, VNC_ = 1.5V(3,4) On-Resistance Flatness NO_ or NC_ OffLeakage Current COM_ OnLeakage Current RFLAT IOFF ION TA = +25°C VCC= 2.7V; ICOM_ = 100mA; VNO_ or VNC_ = 0 0.5 Ω 0.9 0.05 0.09 Ω TA= TMIN to TMAX TA = +25°C 0.8 0.1 0.06 0.1 0.6V, 1.2V, 1.8V(5) TA= TMIN to TMAX 0.12 VCC= 3.3V; VCOM_ = 3V, TA = +25°C 20 0.3V or floating; VNO_ or VNC_ = 0.3V, 3V or floating TA= TMIN to TMAX 100 VCC= 3.3V; VNO_ or VNC_ = TA = +25°C 20 0.3V, 3V or floating; VC OM_ = 0.3V, 3V or floating Ω nA nA TA= TMIN to TMAX 100 www.broadchip.com December, 2013, REV1.1 0.5Ω, 3.3V Quad-SPDT Analog Switch Electrical Characteristics (continued) (VCC = 2.7V to 4.2V, TA = TMIN to TBCT, unless otherwise noted. Typical values are at VCC = 3V, TA = +25° C.) (2) Parameter Symbol Conditions Min Typ Max 20 30 Units DYNAMIC CHARACTERISTICS Turn-On Time Turn-Off Time Break-Before-Make Time TON TOFF tBBM VCC = 2.7V, VNO_orVNC_=1.5V, RL = 50Ω, CL = 35pF, Figure 1 TA = +25° C VCC = 2.7V, VNO_orVNC_=1.5V, RL = 50Ω, CL = 35pF, Figure 1 TA = +25° C VCC = 2.7V, VNO_or VNC_ =1.5V, RL = 50Ω, CL = 35pF,Figure2(6) TA = +25° C 2 TA = TMIN to TMAX 2 ns TA = TMIN to TMAX 50 15 40 ns TA = TMIN to TMAX 50 15 ns VGEN = 0V, RGEN = 0Ω, CL = 1nF, Figure 3 100 pC BW RL = 50Ω, Figure 4 100 MHz Off-Isolation VISO VCOM_ = 1VRMS, RL = 50Ω, f = 100kHz, CL = 5pF, Figure 4(7) -66 dB Crosstalk VCT VCOM_ = 1VRMS, RL = 50Ω, f = 100kHz, CL = 5pF, Figure 4(8) -86 dB THD+N f = 20Hz to 20kHz; VNC_, VNO_, VCOM_ = 0.5VP-P; RL = 32Ω 0.02 % Charge Injection Q On-Channel Bandwidth -3dB Total Harmonic Distortion Plus Noise NC_ or NO_ Off-Capacitance CNC_(OFF), CNO_(OFF) f = 1MHz, VNO_ = VNC_ = VCOM_ = 1.5V, Figure 5 30 pF COM_ On-Capacitance CCOM_(ON) f = 1MHz, VNO_ = VNC_ = VCOM_ = 1.5V, Figure 5 100 pF Power-Supply Rejection Ratio PSRR VAC = 100mVP-P, VCOM_ = 1.5V, RL = 50Ω, f = 100kHz -34 dB DIGITAL INPUTS Input-Logic High Input-Logic Low Input Leakage Current VIH VIL IIN VCC=2.7V to 4.2V, VIN_ = 0 or VCC , 1.4 0.5 ±1 V V uA C. Limits across the full temperature range are guaranteed by design and Note 2: Devices are 100% tested at TA = +25° correlation. Note 3: RON and RON matching specifications are guaranteed by design for BCT4699ETE only. Note 4: ∆RON = RON(MAX) - RON(MIN). Note 5: Flatness is defined as the difference between the maximum and minimum value of on-resistance, as measured over the specified analog signal ranges. Note 6: Guaranteed by design, not production tested. Note 7: Off-isolation = 20log10 [VCOM_ / (VNO_ or VNC_)], VCOM_ = output, VNO_ or VNC_ = input to off switch. Note 8: Between any two switches. www.broadchip.com December, 2013, REV1.1 0.5 Ω, 3.3V Quad-SPDT Analog Switch Timing Circuits/Timing Diagrams Figure 1. Switching Time Figure 2. Break-Before-Make Interval Figure 3. Charge Injection www.broadchip.com December, 2013, REV1.1 0. 5 Ω, 3.3V Quad-SPDT Analog Switch Timing Circuits/Timing Diagrams(continued) Figure 4. On-Loss, Off-Isolation, and Crosstalk Figure 5. Channel On-/Off-Capacitance www.broadchip.com December, 2013, REV1.1 0.5Ω, 3.3V Quad-SPDT Analog Switch Typical Operating Characteristics C, unless otherwise noted.) (VCC = 3V, TA = +25° ON-RESISTANCE vs. COM_ VOLTAGE ON-RESISTANCE vs. COM_ VOLTAGE ON-RESISTANCE vs. COM_ VOLTAGE AND TEMPERATURE SUPPLY CURRENT vs. TEMPERATURE NO_/NC_ OFF-LEAKAGE CURRENT vs. TEMPERATURE COM_ ON-LEAKAGE CURRENT vs. TEMPERATURE www.broadchip.com December, 2013, REV1.1 0.5Ω, 3.3V Quad-SPDT Analog Switch TURN-ON/OFF TIME vs. SUPPLY VOLTAGE TURN-ON/OFF TIME vs. TEMPERATURE CHARGE INJECTION vs. COM_ VOLTAGE COM_ ON-CAPACITANCE vs. COM_ VOLTAGE NO_ OFF-CAPACITANCE vs. NO_ VOLTAGE NO_ ON-CAPACITANCE vs. NO_ VOLTAGE www.broadchip.com December, 2013, REV1.1 0.5Ω, 3.3V Quad-SPDT Analog Switch ON-RESPONSE vs. FREQUENCY OFF-ISOLATION AND CROSSTALK vs. FREQUENCY TOTAL HARMONIC DISTORTION PULSE NOISE vs. SIGNAL AMPLITUDE POWER-SUPPLY REJECTION RATIO vs. FREQUENCY Pin Description Pin Name Function 15 16 1 2 3 4 5 6 7 8 9 10 11 12 13 14 NO1 COM1 NC1 INA NO2 COM2 NC2 GND NO3 COM3 NC3 INB NO4 COM4 NC4 VCC Normally Open Terminal Switch 1 Common Terminal Switch 1 Normally Closed Terminal Switch 1 Select Input, control switch 1 and switch 2 Normally Open Terminal Switch 2 Common Terminal Switch 2 Normally Closed Terminal Switch 2 Ground Normally Open Terminal Switch 3 Common Terminal Switch 3 Normally Closed Terminal Switch 3 Select Input, control switch 3 and switch 4 Normally Open Terminal Switch 4 Common Terminal Switch 4 Normally Closed Terminal Switch 4 Positive Power Supply www.broadchip.com December, 2013, REV1.1 0.5Ω, 3.3V Quad-SPDT Analog Switch Detailed Description The BCT4699 quad-SPDT analog switch operates from a single +2.5V to +5.0V supply. These devices are fully specified for +3V applications. The BCT4699 features fully bidirectional, rail-to-rail CMOS analog switch channels. They can be configured as dual-DPDT switches, dual 4:2 multiplexers/de-multiplexers, or as a single 8:4 multiplexer/de-multiplexer. Analog Signal Range The CMOS switches in Applications Information the BCT4699 function on any signal within the power-supply voltages. If any channel exceeds VCC, it is clamped to VCC by a silicon diode. If any channel goes below GND, it is clamped to GND by a silicon diode. Ensure that if either of these diodes becomes forward biased, the continuous and peak cur-rents do not exceed those listed in the Absolute maximum Ratings section of this data sheet. As seen in the Typical Operating Characteristics, the on-resistance of the BCT4699 is inversely proportional to the supply voltage. Best performance is obtained by using the highest supply voltage available within the +2.5V to +5.0V range. impedance. Within the audio signal range, there is no frequency component to THD. The only distortion mechanism is the RON flatness’ modulation of the signal into a load. Therefore, for best distortion performance, use higher impedance transducers. Digital Logic Inputs Table 1. Truth Table Digital control inputs INA and INB control the position of the switches in the BCT4699. These inputs are diode clamped to GND only. It is acceptable to leave these pins driven in the absence of a VCC power supply. For best performance, drive INA and INB to the full supply voltage range of the BCT699. The two switch sections of the BCT4699 operate independently. Drive INA low to connect COM1 to NC1 and connect COM2 to NC2. Drive INA high to connect COM1 to NO1 and connect COM2 to NO2. Drive INB low to connect COM3 to NC3 and connect COM4 to NC4. Drive INB high to connect COM3 to NO3 and connect COM4 to NO4. See Table 1. INA and INB have typical hysteresis of 100mV by including positive feedback in the internal buffer. Thus, for applications using DC or very slow ramp rate of the digital input voltage level, connect a 100pF capacitor from IN_ to GND to limit the ICC current at the trip point. The switching point is typically 0.7V between VIL and VIH levels. Power Supply The BCT4699 operates from a +2.5V to +5.0V power supply. For best results, bypass VCC to GND with a 0.1µF ceramic chip capacitor located close to the IC. Audio Signal Routing The BCT4699’s low RON makes it an excellent choice for multiplexing loudspeakers in portable equipment. THD performance is inversely proportional to load SWITCH 1 AND SWITCH 2 STATE SWITCH 3 AND SWITCH 4 STATE — COM1 to NC1 COM2 to NC2 — 1 — COM1 to NO1 COM2 to NO2 — — 0 — COM3 to NC3 COM4 to NC4 — 1 — COM3 to NO3 COM4 to NO4 INA INB 0 Each switch channel on the BCT4699 has an absolute maximum rating 300mA continuous current, and 400mA peak current at 50% duty cycle. When driving low-impedance loudspeakers, the peak signal amplitude should be limited so these peak currents are not exceeded. For an 8Ω load, this corresponds to 2.3VRMS. For a 4Ω load, this is 1.1VRMS. Package Information The BCT4699 is offered in 16-pin 3mm x 3mm x 0.8mm TQFN packages. The mechanical drawings for these packages are located at the end of this data sheet. The TQFN package is rated for a peak power dissipation of 1.25W at +70°C, with a θJA of 64° C/W on a single-layer PC board. www.broadchip.com December, 2013, REV1.1 0.5Ω, 3.3V Quad-SPDT Analog Switch Packaging Mechanical: 16-Pin TQFN www.broadchip.com