PDF AZV5002 Data sheet ( Hoja de datos )

Número de pieza	AZV5002
Descripción	Low Power Audio Jack Detector
Fabricantes	Diodes
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No Preview Available ! AZV5002 Low Power Audio Jack Detector with SEND/END Detection in Miniaturized Package Description The AZV5002 is a low power and cost effective headset detection IC with a comparator with internal hysteresis, OR gate, and N-channel MOSFET integrated designed to detect the assertion of a headset with a microphone. Pull−up resistors for the detection pins are internalized, a built in resistor divider provides the reference voltage for detecting the left audio channel. The logic low output of the OR gate indicates the headset has been connected properly. The AZV5002 is available in miniaturized package, U-QFN1418-10 which helps reduce the space needed on PCB boards. Features  Low Supply Current: 5µA (Typical) @ VDD = 1.8V  Supply Voltage Range: 1.6~5.5V  Comparator, OR Gate, N-Channel MOSFET Integrated  Open Drain Output for MIC Pin  U-QFN1418-10: Available in “Green” Molding Compound (No Br. Sb.)  Totally Lead-Free & Fully RoHS Compliant (Notes 1 & 2)  Halogen and Antimony Free. “Green” Device(Note 3) Pin Assignments AZV5002 S/E DET S/E_DET 8 7 6 5 S/E_REF 9 4 VDD2 10 1 GND 2 MIC 3 Top View (U-QFN1418-10) Fig. 1 GND_DET L_DET VDD Applications  Mobile Phones  Tablet  Battery Powered Devices  Alarm and Security Systems Notes: 1. No purposely added lead. Fully EU Directive 2002/95/EC (RoHS) & 2011/65/EU (RoHS 2) compliant. 2. See http://www.diodes.com/quality/lead_free.html for more information about Diodes Incorporated’s definitions of Halogen- and Antimony-free, "Green" and Lead-free. 3. Halogen- and Antimony-free "Green” products are defined as those which contain <900ppm bromine, <900ppm chlorine (<1500ppm total Br + Cl) and <1000ppm antimony compounds. AZV5002 Document number: DS38465 Rev. 1 - 2 1 of 15 www.diodes.com March 2016 © Diodes Incorporated 1 page AZV5002 Electrical Characteristics (Typical Values are referenced to TA = +25°C, VDD = 1.8V, VDD2 = 2.1V, unless otherwise noted. Min/max values apply from TA = -40 to +85°C, unless otherwise noted.) Symbol Parameter IDD Headset Detection Circuit IDD2 S/E Detection Comparator Input Characteristics of L_Det VIH Input Logic High VIL Input Logic Low tpLH Propagation Delay to DET_ tpLH tpHL Propagation Delay to DET_ tpHL CIN Input Capacitance IIH Low Voltage Input Leakage IIL High Voltage Input Leakage Input Characteristics of GND_Det Conditions VGND-Det = 1.8V, VL_Det = 1.8V VDD = 1.8V, VDD2 = 2.1V VDD = 1.8V VDD = 1.8V COUT = 15pF, VGND-Det = 0V, VL_Det = 1.31~1.52V COUT = 15pF, VGND-Det = 0V, VL_Det = 1.31~1.52V f = 1MHz VL_Det = 0V VL_Det = 1.8V Min Typ Max Unit - 5 8 A - 4 6 A 1.5 - -V - - 1.33 V - 250 - ns - 450 - ns - 3 - pF - 0.8 - A - 2.4 - nA VIH Input Logic High VIL Input Logic Low tpLH Propagation Delay to DET_ tpLH tpHL Propagation Delay to DET_ tpHL CIN Input Capacitance IIH Low Voltage Input Leakage IIL High Voltage Input Leakage Output Characteristics of DET VDD = 1.8V VDD = 1.8V COUT = 15pF, VL_Det = 0V, VGND-Det = 0~1.8V, RL = 1MΩ COUT = 15pF, VL_Det = 0V, VGND-Det = 0~1.8V, RL = 1MΩ f = 1MHz VL_Det = 0V VL_Det = 1.8V 1.17 - -V - - 0.63 V - 10 - ns - 10 - ns - 3 - pF - 0.8 - A - 2.7 - nA VOH Voltage Output High VDD = 1.8V, IOH = -0.1mA 1.6 - -V VOL Voltage Output Low TRISE Rise Time TFALL Fall Time Input Characteristics of S/E_REF & S/E_DET tpLH Propagation Delay to S/E_ tpLH tpHL Propagation Delay to S/E_ tpHL VDD = 1.8V, IOL = 0.1mA COUT = 15pF, RL =1MΩ COUT = 15pF, RL =1MΩ COUT = 15pF, VCM = mid−supply, 100 mV overdrive COUT = 15pF, VCM = mid−supply, 100 mV overdrive - - - - - - 0.1 V 5 - ns 5 - ns 300 - ns 200 - ns IIL Input Leakage VCM = 0.9V - 150 - pA AZV5002 Document number: DS38465 Rev. 1 - 2 5 of 15 www.diodes.com March 2016 © Diodes Incorporated 5 Page AZV5002 Application Information Supply Voltages The AZV5002 works with a wide supply voltages range from 1.6V to 5.5V. VDD should be powered up before VDD2. The send/end detection comparator will not be functional unless VDD and VDD2 are both applied. VDD2 can be connected to VDD or to a separate supply voltage, such as the MIC bias voltage. Decoupling capacitors of 0.1uF should be placed as close as possible to each power supply pin. Audio Jack Detection TheAZV5002 is designed to simplify the detection of a stereo audio connector with a microphone contact. When the headset is not connected, the internal pull−up resistors on L_DET and GND_DET pull those pins high. When the headset is connected to the switched audio jack, the headset ground and left audio channel trigger L_DET and GND_DET to logic low. The AZV5002 can work with either the CTIA or OMTP standard. In order to support both standards simultaneously, a cross point switch and additional circuitry is necessary to detect and swap the ground and microphone pins. Send/End Button Press Detection A second integrated comparator allows the send/end signal to be compared with a reference voltage to detect whether the send/end button has been pressed. MIC Pin Biasing The AZV5002 typical application circuit in Figure 2 shows the recommended 2.2KΩ pull-up resistor to the MIC bias voltage under supply voltage 1.8V condition. While the headset is not detected, the internal NMOS transistor is enabled to mute the MIC signal. If the MIC sink current is 1mA under system application, the MIC pin is pulled near 5.5mV when the headset is not present. The internal NMOS transistor is optimized to sink up to 2mA of current, allowing some flexibility in the selection of the pull-up resistor and MIC bias voltage. AZV5002 Document number: DS38465 Rev. 1 - 2 11 of 15 www.diodes.com March 2016 © Diodes Incorporated 11 Page

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