STG3696EQTR

STG3696E Low voltage dual SPDT switch for USB/audio signal switching with 8 kV ESD protection Features ■ Low distortion negative signal swing capability for audio switch (range = VCC to VCC – 5.0 V) ■ Single supply operating voltage: VCC = 2.7 V to 4.5 V ■ Typical bandwidth (–3 dB) of 950 MHz on all channels ■ USB (2.0) high speed (480 Mbps) signal switching compliant ■ Integrated fail safe function to protect against short to 5.5 V ■ Internal shunt resistors for pop noise suppression ■ Auto detection of VBUS for switch selection ■ Low RON resistance of 2.5 Ω (typ.) ■ Latch-up performance exceeds 100 mA per JESD 78, Class II ■ ESD performance exceeds JESD22 (COM pins to GND) ± 8 kV Human Body Model (A114-A) ■ ESD performance exceeds JESD22 (other pins) ± 2 kV Human Body Model (A114-A) January 2011 QFN10 (1.8 mm x 1.4 mm) Applications ■ Mobile phones ■ MP3 and other personal media players Table 1. Device summary Order code STG3696EQTR Doc ID 18165 Rev 2 Package Packing QFN10 Tape and reel (1.8 mm x 1.4 mm) 1/21 www.st.com 1 Contents STG3696E Contents 1 Description . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 5 2 Pin settings . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 6 2.1 Pin connection . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 6 2.2 Pin description . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 6 3 Functional diagram . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 7 4 Application diagram . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 8 5 Operation . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 9 5.1 Overvoltage fault protection . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 9 5.2 Negative charge pump for negative rail audio signaling . . . . . . . . . . . . . . . 9 5.3 VBUS detection feature . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 9 5.4 Pop noise suppression . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 9 6 Maximum ratings . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 10 7 DC and AC parameters . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 11 8 Package mechanical data . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 14 9 Package marking information . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 19 10 Revision history . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 20 2/21 Doc ID 18165 Rev 2 STG3696E List of tables List of tables Table 1. Table 2. Table 3. Table 4. Table 5. Table 6. Table 7. Table 8. Table 9. Device summary . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1 Pin assignment . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 6 Truth table. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 7 Absolute maximum ratings . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 10 Recommended operating conditions . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 11 DC and AC characteristics . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 11 Mechanical data for QFN10 (1.8 x 1.4 x 0.5 mm) - 0.40 mm pitch . . . . . . . . . . . . . . . . . . . 15 Device topside marking information . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 19 Document revision history . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 20 Doc ID 18165 Rev 2 3/21 List of figures STG3696E List of figures Figure 1. Figure 2. Figure 3. Figure 4. Figure 5. Figure 6. Figure 7. Figure 8. Figure 9. 4/21 Logic diagram . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 5 Pin connection (top through view) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 6 Functional diagram . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 7 Application diagram . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 8 Package outline for QFN10 (1.8 x 1.4 x 0.5 mm) - 0.40 mm pitch . . . . . . . . . . . . . . . . . . . 14 Recommended footprint for QFN10 (1.8 x 1.4 x 0.5 mm) - 0.40 mm pitch . . . . . . . . . . . . . 15 Carrier tape for QFN10 (1.8 x 1.4 x 0.5 mm) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 16 Reel information (front side) for QFN10 (1.8 x 1.4 x 0.5 mm). . . . . . . . . . . . . . . . . . . . . . . 17 Reel information (back view) for QFN10 (1.8 x 1.4 x 0.5 mm) . . . . . . . . . . . . . . . . . . . . . . 18 Doc ID 18165 Rev 2 STG3696E 1 Description Description STG3696E is a high speed ESD protected dual SPDT (single pole dual throw) switch that combines low distortion audio and accurate USB 2.0 high speed (480 Mbps) data signal switching in the same device. When the audio path is selected, the switch allows the audio signal to swing below ground (up to VCC – 5.0 V). Superior channel-to-channel crosstalk also minimizes interference. Integrated shunt resistors in the device helps to suppress pop noise on the audio path. When VBUS is greater than VBUSTHRES, STG3696E will automatically switch from the audio channel to the USB channel. The device is compatible with the requirements of USB 2.0 and features low on capacitance plus low resistance needed to achieve high performance switching in mobile applications. The device allows the D+/D– pins to withstand an overvoltage condition of 5.5 V in compliant with the USB 2.0 fault protection specification. Figure 1. Logic diagram 6## #/- !5 #/- !5 6"53 53" !/62 53" 633 !- Doc ID 18165 Rev 2 5/21 Pin settings STG3696E 2 Pin settings 2.1 Pin connection Figure 2. Pin connection (top through view) #/- #/-   !/62   6## 6"53   '.$ 53"   !5   53" !5 !- 2.2 Pin description Table 2. 6/21 Pin assignment Pin number Symbol Name and function 1 USB1 USB channel 1 2 AU2 Audio channel 2 3 AU1 Audio channel 1 4 GND Ground (0 V) 5 VCC Positive supply voltage 6 COM1 Common channel 1 7 COM2 Common channel 2 8 AOVR Audio Override Enable. When AOVR is low, switch selection is controlled by VBUS. When AOVR is high, COM channels will be connected to audio channels. AOVR has an internal pull-down resistor to GND. 9 VBUS VBUS detection. If VBUS ≥ VBUSTHRES, COM channels are connected to USB channels. Otherwise, COM channels will be connected to audio channels. 10 USB2 USB channel 2 Doc ID 18165 Rev 2 STG3696E 3 Functional diagram Functional diagram Figure 3. Functional diagram 6## 53" #/- 53" #/- !5 !5 6"534(2%3 '.$ 6"53 !/62 !- Table 3. Truth table VBUS AOVR USBn AUn AUn shunt ≥ VBUSTHRES LOW ON OFF ON < VBUSTHRES LOW OFF ON OFF X(1) ON OFF ON OFF 1. Don't care. Doc ID 18165 Rev 2 7/21 Application diagram 4 STG3696E Application diagram Figure 4. Application diagram 53" 53" AUDIO CONNECTOR 53" #/- #/- 53" TRANSCEIVER 34'% !5 !5 !UDIO AMPLIFIER !- 8/21 Doc ID 18165 Rev 2 STG3696E Operation 5 Operation 5.1 Overvoltage fault protection STG3696E features an overvoltage fault protection in compliance to USB fault protection specification. The fault protection circuitry is triggered when the voltage on the COMn channels raise above VOVDT. The overvoltage fault protection helps to protect the switch and USB transceiver from being damaged by excessive voltage levels. 5.2 Negative charge pump for negative rail audio signaling STG3696E uses a negative charge pump to generate a negative supply which allows the audio signal to swing below ground (up to VCC – 5.0 V) on the AUn channels. If the device fault protection is activated when the voltage on the COMn channels raise above VOVDT, there must not be a negative voltage attached to the AUn channels. 5.3 VBUS detection feature The connection between USBn and COMn is triggered when VBUS voltage is detected to be higher than VBUSTHRES. If VBUS is constantly present in the application, driving the audio override enable (AOVR) high will connect the AUn channels to the COMn channels. If AOVR is low, the switching between AUn and USBn is controlled by the VBUS detection. 5.4 Pop noise suppression When the AUn channels are not connected to the COMn channels, the AUn channels are automatically connected to 200 Ω shunt resistors which helps to discharge any capacitance built up on the AUn channels. This will reduce the possibility of pop and click noise occurrence when switching between USB and audio sources. Doc ID 18165 Rev 2 9/21 Maximum ratings 6 STG3696E Maximum ratings Stressing the device above the rating listed in the “Absolute maximum ratings” table may cause permanent damage to the device. These are stress ratings only and operation of the device at these or any other conditions above those indicated in the “Operating” sections of this specification is not implied. Exposure to absolute maximum rating conditions for extended periods may affect device reliability. Table 4. Absolute maximum ratings Symbol VCC VCOMn VAUn Parameter Supply voltage Common port voltage AOVR = 1 or VBUS < VBUSTHRES VBUS ≥ VBUSTHRES AOVR = 1 or VBUS < VBUSTHRES Audio port voltage VBUS ≥ VBUSTHRES VUSBn USB port voltage Unit –0.5 to 6.0 V – (VCC – 6.0) to 6.0 V –0.5 to 6.0 – (VCC – 6.0) to VCC + 0.5 V –0.5 to VCC + 0.5 –0.5 to VCC + 0.5 V IIK DC input diode current ± 50 mA IOK DC output diode current ± 20 mA IO DC output current ± 150 mA IOP DC output current peak (pulse at 1 ms, 10% duty cycle) ± 400 mA ± 100 mA 1120 mW –65 to +150 °C 300 °C ICC or IGND DC VCC or ground current PD Power dissipation at TA = 70 Tstg Storage temperature TL °C(1) Lead temperature (10 s) 1. Derate above 70 °C by 18.5 mW/°C. 10/21 Value Doc ID 18165 Rev 2 STG3696E DC and AC parameters 7 DC and AC parameters Table 5. Recommended operating conditions Symbol Parameter VCC Supply voltage VUSBn VIO Input/output voltage Table 6. Unit 2.7 to 4.5 V 0 to VCC VAUn VCC – 5.0 to VCC VCOMn (AOVR = 1 or VBUS < VBUSTHRES) VCC – 5.0 to VCC V VCOMn (VBUS ≥ VBUSTHRES) Top Value 0 to VCC Operating temperature –40 to 85 °C DC and AC characteristics Symbol Parameter VIH High level input voltage VIL Low level input voltage VBUSTHRES VBUS detect threshold voltage VCC (V) Value Test conditions(1) Min. Typ.(2) Max. 1.6 V 0.4 0.5 x VCC VOVDT(3) COM overvoltage detect 2.7 T = 25 °C threshold 3.3 A RON(AU) Audio channel ON Resistance 3.0 VAUn = –1.5 V, 1.5 V ICOMn = 10 mA RON(USB) USB channel ON Resistance 3.0 VUSBn = 0 V, VCC ICOMn = 10 mA ΔRON(AU)(4),(5) ON resistance matching between audio channels 3.0 ΔRON(USB(4),(5) ON resistance matching between USB channels RFLAT(AU)(6) Unit VCC + 0.35 V V VCC + 1.0 V 2.4 5 Ω 2.4 5 Ω VAUn = 0 V ICOMn = 10 mA 0.5 Ω 3.0 VUSBn = 0 V ICOMn = 10 mA 0.5 Ω ON resistance flatness for audio channels 3.0 VAUn = –1.5 V to 1.5 V ICOMn = 10 mA 0.03 0.25 Ω RFLAT(USB)(6) ON resistance flatness for USB channels 3.0 VUSBn = 0 V to VCC ICOMn = 10 mA 0.05 0.5 Ω R SH Shunt switch resistance IAUn = 1 mA 200 300 Ω IUSB(OFF) USB channel off leakage current 15 nA ICOM(OFF) Common channel off leakage current 500 µA 3.0 0 VUSBn = 2.5 V, 0 V VCOMn = –1.5 V, 2.5 V VCOMn = 3.6 V VUSBn = VAUn = 0 V Doc ID 18165 Rev 2 –15 11/21 DC and AC parameters Table 6. Symbol ICOM(ON) STG3696E DC and AC characteristics (continued) Parameter VCC (V) Min. Typ.(2) Max. 3.0 USB mode VAUn = 0 V, 2.5 V, unconnected VCOMn = 0 V, 2.5 V 0.3 3.0 Audio mode VUSBn = 0 V, 2.5 V, unconnected VCOMn = –1.5 V, 2.5 V 0.3 1 VAOVR = 0, VBUS = VBUSTHRES 9 24 VAOVR = VCC, VBUS = 0 V 9 24 VAOVR = 0, VBUS > VBUSTHRES 18 36 VAOVR = VCC, VBUS = 0 V 18 36 5.0 Common channel on leakage current 3.3 ICC Value Test conditions(1) Quiescent supply current 4.5 Fault-protection response time 3.0 VCOMn = 1 V to 5 V step, RUSBn + RAUn = 1 kΩ 1.3 tFPR Fault-protection recovery time 3.0 VCOMn = 5 V to 1 V step, RUSBn + RAUn = 1 kΩ –55 3.0 AUn to COMn tD Break-before-make time delay µs µs 55 USBn to VAOVR = 0V, VBUS = 0 V to 3.0 5.0 V COMn 55 85 (VAOVR = 0 V, VBUS = 0 V to 5.0 V) or (VBUS = 5.0 V, VAOVR = VCC to 0 V) 1.4 5 (VAOVR = 0 V, VBUS = 5.0 V USBn to to 0 V) or (VBUS = 5.0 V, 3.0 COMn VAOVR = 0 V to V CC) 0.7 RL = 50 Ω 55 µs Turn on time Turn off time µA (VAOVR = 0 V, VBUS = 5.0 V to 0 V) or (VBUS = 5.0 V, VAOVR = 0 V to V CC) 3.0 tOFF 1 µA tFP tON Unit AUn to COMn 85 µs µs 5 tSK(0) Channel-to-channel skew 40 ps tSK(P) Skew of opposite transition of the same output 40 ps OIRR OFF isolation(7) VCOM = 1 V RMS, f = 100 kHz, RS = R L = 50 Ω –65 dB Xtalk Crosstalk(8) VCOM = 1 V RMS, f = 100 kHz, RS = R L = 50 Ω –70 dB Total Harmonic Distortion + noise AUn to COMn f = 20 Hz to 20 kHz, VCOM = 0.5 VPP, DC bias = 0 V, RL = 600 Ω 0.05 % 35 dB THD + N PSRR 12/21 Power supply rejection ratio 2.7 f = 10 kHz, RCOMn = 50 Ω 3.3 Doc ID 18165 Rev 2 STG3696E Table 6. Symbol BW CCOM(ON) DC and AC parameters DC and AC characteristics (continued) Parameter -3 dB bandwidth On capacitance VCC (V) Value Test conditions(1) Min. AUn USBn Typ.(2) Max. RS = RL = 50 Ω signal = 0 dBm 850 850 V = 0.5VP-P, USBn to COM DC bias = 0 V, COMn f = 240 MHz 8 VCOM = 0.5 V P-P, DC bias = 0 V, f = 1 MHz 8 AUn to COMn Unit MHz pF CAU(OFF) Audio channel off capacitance VCOM = 0.5 VP-P, DC bias = 0 V, f = 1 MHz 8 CUSB(OFF) USB channel off capacitance VCOM = 0.5 VP-P, DC bias = 0 V, f = 240 MHz 3.3 pF 1. Valid for ambient operating temperature: TA = –40 to 85 °C, VCC = 2.7 V to 4.5 V (except where noted). 2. Typical values are TA = 25 °C. 3. When the voltage goes above VOVDT , the switch turns off and protects the downstream circuits in case of a fault condition. 4. ΔRON = max |mSN-nSN|, where m and n = 1, 2 and N = 1, 2. 5. Guaranteed by design. 6. Flatness is defined as the difference between the maximum and minimum value of on-resistance as measured over the specified analog signal ranges. 7. Off isolation = 20 Log10 (VD /VS), V D = output, VS = input to off switch. 8. Between the two switches. Doc ID 18165 Rev 2 13/21 Package mechanical data 8 STG3696E Package mechanical data ECOPACK® In order to meet environmental requirements, ST offers these devices in different grades of ECOPACK® packages, depending on their level of environmental compliance. ECOPACK® specifications, grade definitions and product status are available at: www.st.com. ECOPACK® is an ST trademark. Figure 5. Package outline for QFN10 (1.8 x 1.4 x 0.5 mm) - 0.40 mm pitch "/44/-6)%7   0).)$  ,  E      ,X  BX E # E ! ! 3%!4).'0,!.% ! # X,%!$3#/0,!.!2)49  #        % %   0).)$ 4/06)%7 $ !- 14/21 Doc ID 18165 Rev 2 STG3696E Package mechanical data Table 7. Mechanical data for QFN10 (1.8 x 1.4 x 0.5 mm) - 0.40 mm pitch millimeters inches Symbol Min. Typ. Max. Min. Typ. Max. A 0.45 0.50 0.55 0.0177 0.0197 0.0217 A1 0 0.02 0.05 0.0000 0.0008 0.0020 A3 0.127 0.0050 b 0.15 0.20 0.25 0.0059 0.0079 0.0098 D 1.75 1.80 1.85 0.0689 0.0709 0.0728 E 1.35 1.40 1.45 0.0531 0.0551 0.0571 e 0.40 0.0157 L 0.35 0.40 0.45 0.0138 0.0157 0.0177 L1 0.45 0.50 0.55 0.0177 0.0197 0.0217 Figure 6. Recommended footprint for QFN10 (1.8 x 1.4 x 0.5 mm) - 0.40 mm pitch             X       X  !- Doc ID 18165 Rev 2 15/21 Package mechanical data Figure 7. STG3696E Carrier tape for QFN10 (1.8 x 1.4 x 0.5 mm) + 2REF !   "      #/6%2 ! › " › + › !- 16/21 Doc ID 18165 Rev 2 STG3696E Package mechanical data Figure 8. Reel information (front side) for QFN10 (1.8 x 1.4 x 0.5 mm) 888 2%02%3%.433500,)%2g3 ,/'//2.!-%/04)/. 4%84(%)'(4MM()'(8 MM7)$%%-"/33%$,%44%23 3%%$%4!)," 888 #,  03 3,/4  !0!24 0,!#%3 &2/.43)$% 3%%$%4!),#  -!8  n › -). 2%& 2%&    n  03 2%&4%84(%)'(4 $%4!),# $%4!)," !- Doc ID 18165 Rev 2 17/21 Package mechanical data Figure 9. STG3696E Reel information (back view) for QFN10 (1.8 x 1.4 x 0.5 mm)   2   2 #,   %-"/33%$2)"3 2!)3%$MM 7)$4(MM "!#+ 6)%7  -!8  n "!#+ 6)%7 !- 18/21 Doc ID 18165 Rev 2 STG3696E 9 Package marking information Package marking information Table 8. Device topside marking information Step type marking Marking composition CD00155614 for V885 VFQFPN 10L 1.81 x 1.4 x 0.5 (pin1 dot at TLC) LEGEND PACKAGE FACE: TOP Unmarkable surface Marking composition field ! A - 47862 - MARKING AREA (123) B - 47861 - DOT " !- CODE 47862 COMPOSN FLD TYPE MARKING AREA Doc ID 18165 Rev 2 MARKING VALUE U47 19/21 Revision history 10 STG3696E Revision history Table 9. 20/21 Document revision history Date Revision Changes 27-Oct-2010 1 Initial release. 26-Jan-2011 2 Updated Table 6, corrected typo in Table 2, Table 3 and Table 5. Doc ID 18165 Rev 2 STG3696E Please Read Carefully: Information in this document is provided solely in connection with ST products. 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The ST logo is a registered trademark of STMicroelectronics. All other names are the property of their respective owners. © 2011 STMicroelectronics - All rights reserved STMicroelectronics group of companies Australia - Belgium - Brazil - Canada - China - Czech Republic - Finland - France - Germany - Hong Kong - India - Israel - Italy - Japan Malaysia - Malta - Morocco - Philippines - Singapore - Spain - Sweden - Switzerland - United Kingdom - United States of America www.st.com Doc ID 18165 Rev 2 21/21