HS231P16NDGI

PRELIMINARY DATASHEET HYBRID SWITCH WITH NEGATIVE SIGNAL HANDLING IDTHS231P16 Description The IDTHS231P16 is a high-performance hybrid switch device, combined with hybrid low distortion audio, UART and an USB 2.0 high speed data (480 Mbps) signal switches. When operated with a 1.8 V single supply, this high performance switch allows audio signal swings below-ground, allowing the use of a common USB and audio headphone connector in personal media players and other portable battery powered devices. The IDTHS231P16 logic SELx control pins are 1.8 V compatible which allows for control via a standard µcontroller. With a VDD voltage in the range of 1.7 V to 1.95 V, the device can pass USB 3 V signal sources in the portable device, with up to 5.5 V tolerant on USB and COM signal pins. The part has an audio enable control pin to open all the switches and put the part in a low power state. The IDTHS231P16 is available in a small 16-pin QFN package. Features • +1.7 V to +1.95 V single-supply operation • Low distortion negative signal handling capability with Ron typically 3Ω for Audio signal • • • • • Control pin to open all switches and enter low power state Cross-talk audio channels (20 Hz to 20 kHz): -110dB -3dB bandwidth USB switches: 700 MHz Available in 16-pin QFN package – RoHS compliant Compliant with USB 2.0 short circuit requirements without additional external components Applications • • • • MP3 and other personal media players PDA’s Audio/USB Switching Cellular and mobile phones Block Diagram SEL0 SEL1 Control Circuit D+ R U+ DL UCOMCOM+ VDD GND IDT™ HYBRID SWITCH WITH NEGATIVE SIGNAL HANDLING 1 IDTHS231P16 REV J 032708 IDTHS231P16 HYBRID SWITCH WITH NEGATIVE SIGNAL HANDLING HYBRID SWITCH Pin Assignment (16-pin QFN) GND VDD NC NC Truth Table (COM+, COM-) SEL1 0 SEL0 0 1 0 1 COM+ D+ U+ R COMDUL Power Down SEL0 DUL 1 SEL1 D+ U+ 0 1 1 4 R COM+ NC NC COM- 16-pin QFN Pin Descriptions Pin Number Pin Name 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 SEL0 DUL COMNC NC COM+ R U+ D+ SEL1 VDD NC NC GND 3 V USB Signal. Bi-directional. UART Signal. Bi-directional. Audio signal pin (left). Uni-directional. ±1.5 V signal. Audio and USB signal common pin. Bi-direction in USB mode, uni-directional in Audio mode. No connection. No connection. Audio and USB signal common pin. Bi-direction in USB mode, uni-directional in Audio mode. Audio signal pin (right). Uni-directional. ±1.5 V signal. UART Signal. Bi-directional. 3 V USB Signal. Bi-directional. Control signal pin. Internal pull-down resistor. Power pin. +1.8 V VDD. No connection. No connection. Ground pin. 0V reference. Pin Description Control signal pin. Internal pull-down resistor. IDT™ HYBRID SWITCH WITH NEGATIVE SIGNAL HANDLING 2 IDTHS231P16 REV J 032708 IDTHS231P16 HYBRID SWITCH WITH NEGATIVE SIGNAL HANDLING HYBRID SWITCH Detailed Description The IDTHS231P16 device is a dual single pole/triple throw (SPTT) high performance switch device that can operate from a single DC power supply in the range of 1.7 V to 1.95 V. It was designed to function as a dual 3 to 1 multiplexer to select between USB differential data signals, UART signals and audio L and R stereo signals. It comes in tiny QFN packages for use in cell phones, MP3 players, PDAs, and other personal media players. The part consists of one hybrid dual 3Ω audio, 5Ω UART and 5Ω USB switches. The hybrid switch can accept audio signals that swing below ground and USB signals. They were designed to pass audio left and right stereo signals, and are ground referenced, with minimal distortion. The USB switches were designed to pass high-speed USB differential data signals with minimal edge and phase distortion. The IDTHS231P16 was specifically designed for cell phones and other personal media player applications that need to combine the audio headphone jack and the USB data connector into a single shared connector, thereby saving space and component cost. The IDTHS231P16 has SELx pins that select between the audio switches, UART and the USB switches. These pins can be driven LOW or HIGH to switch between the audio inputs and USB data inputs. U-) are typically 5Ω¸ bidirectional switches that were designed to pass high-speed USB differential signals in the range of ±0V to 400 mV, and UART signals. These switches have low capacitance and high bandwidth to pass USB high-speed signals (480 Mbps) with minimum edge and phase distortion to meet USB 2.0 high-speed signal quality specifications. The maximum signal range for the USB switches is from 0V to 3.6 V. The signal voltage at D- and D+ should not be allow to exceed the 3.6 voltage rail or go below ground. The USB switches are active (turned ON) whenever the SEL voltage is >1.2 V. Note: Whenever the USB switches are ON, the UART or the audio drivers of the CODEC need to be at AC or DC ground or floating to keep from interfering with the data transmission. Logic Control The state of the IDTHS231P16 device is determined by the voltage at the SEL pins. Refer to truth table on page 2 of data sheet. These logic pins are 1.8 V logic compatible so that it can be controlled by a standard µprocessor. The SELx pins is internally pulled low through a 4MΩ resistor to ground and can be left floating or tri-stated by the µprocessor. Logic control voltage levels: SELx = Logic “0” (Low) when 1.2 V Audio Switches The two audio switches (L, R) are typically 3Ω¸ switches that can pass signals that swing below ground by as much as 1.5 V. They were designed to pass ground reference stereo signals with minimal insertion loss and very low distortion. Crosstalk between the audio switches over the audio band is typically < -110dB. These audio switches are uni-directional switches. The audio drivers should be connected at the L and R side of the switch and the speaker loads should be connected at the COM side of the switch. Note: Whenever the audio switches are ON the USB and UART transceivers need to be in the high impedance state or static high or low state. USB/ UART Switches The two USB switches (D+, D-) and two UART switches (U+, IDT™ HYBRID SWITCH WITH NEGATIVE SIGNAL HANDLING 3 IDTHS231P16 REV J 032708 IDTHS231P16 HYBRID SWITCH WITH NEGATIVE SIGNAL HANDLING HYBRID SWITCH Absolute Maximum Ratings Stresses above the ratings listed below can cause permanent damage to the IDTHS231P16. These ratings, which are standard values for IDT commercially rated parts, are stress ratings only. Functional operation of the device at these or any other conditions above those indicated in the operational sections of the specifications is not implied. Exposure to absolute maximum rating conditions for extended periods can affect product reliability. Electrical parameters are guaranteed only over the recommended operating temperature range. Item VDD to GND Ambient Operating Temperature Range Continuous Current (audio switches) Peak Current (audio switches) Pulsed 1 ms, 10% duty cycle max. Continuous Current (USB or UART switches) Peak Current (USB or UART switches) Pulsed 1 ms, 10% duty cycle max. Voltages Switch I/O Voltage - D+, D-, COM+, COM- (see note below) Switch I/O Voltage - L, R (see note below) SELx (see note below) ESD Rating HBM MM CDM >7 kV >200 V >1 kV Rating -0.3 V to 6.0 V -40°C to +85°C ±150 mA ±300 mA ±40 mA ±100 mA -0.3 V to +6 V -2 V to +2 V -0.3 V to [(VDD) + 0.3 V] Note: These specifications are for absolute maximum rating. Not recommended for typical operation. Recommended Operating Conditions 1 Symbol VDD Supply Voltage Storage Temperature Parameter Rating 1.7 V to 1.95 V -40°C to +85°C Note 1: The input and output negative voltage ratings may be exceeded if the input and output diode current ratings are observed. DC switch voltage may never exceed 1.95 V. IDT™ HYBRID SWITCH WITH NEGATIVE SIGNAL HANDLING 4 IDTHS231P16 REV J 032708 IDTHS231P16 HYBRID SWITCH WITH NEGATIVE SIGNAL HANDLING HYBRID SWITCH Electrical Characteristics – 1.7 V to 1.95 V Supply Unless stated otherwise, VDD = 1.7 V to 1.95 V, GND = 0V Parameter Audio Signal Range On-Resistance RON Matching Between Channels RON Flatness USB Signal Range On-Resistance RON Matching Between Channels OFF-leakage Current ON-leakage Current Symbol VANALOG RON RON RFLAT(ON) VDigital RON RON ID+(OFF) or ID-(OFF) IDx Conditions Min. -1.5 Typ. Max. 1.5 Units V Ω Ω Ω Audio Switches (L, R) VL/R = -2 V, 0V, 0.7 V, VBUS = 0V VAUDIO-0.7 V, VAUDIO ION = -26 mA VL/R = 0.7 V ION = -26 mA ION = -26 mA 0 VD+/D- = 0V, 0.4 V, ION = -8 mA VD+/D- = 0V, ION = -8 mA D+, D-, R, L = Floating VDD = 1.8 V U+, U-, D+, D-, R, L = 0.3 V VDD = 1.8 V 5 0.3 ±50 ±50 3 0.3 1.5 USB/UART Switches (D+, D-, U+, U-) 3.6 V Ω Ω nA nA IDT™ HYBRID SWITCH WITH NEGATIVE SIGNAL HANDLING 5 IDTHS231P16 REV J 032708 IDTHS231P16 HYBRID SWITCH WITH NEGATIVE SIGNAL HANDLING HYBRID SWITCH Parameter Symbol Conditions Min. (Note 2) Typ. Max. (Note 2) Units Dynamic Characteristics Turn-on Time Turn-off Time Break-Before-Make Delay Skew Additive Jitter Propagation Delay Crosstalk (Channel-to-channel) Total Harmonic Distortion USB Switch -3 dB Bandwidth UART Switch -3 dB Bandwidth D+/D- OFF Capacitance L/R OFF Capacitance COM ON Capacitance CD+(OFF), CD-(OFF) CLOFF, CROFF CCOM-(ON), CCOM+(ON) VDD IDD IDD SELx = 00, No input signal tON tOFF tD tSKEW tJ(RMS) tPD R to COM-, L to COM+ THD RL = 45Ω CL = 10 pF, tR=tF=750 ps at 480 , Mbps, (Duty cycle=50%) RL=45Ω CL=10 pF, tR=tF=750 ps at 480 Mbps , RL=45Ω CL=10 pF (Fig.7) , , RL=32Ω f = 20Hz to 20 kHz, VLor VR=0.707 VRMS (2VP-P) f = 20Hz to 20 kHz, VLor VR=0.707 VRMS (2VP-P), RS, RT , RL=50Ω CL=5 pF RL=50Ω CL=5 pF , f=1 MHz, VLor VR=VCOMx=0V f=1 MHz, VD+or VD-=VCOMx=0V f=1 MHz, VDD=3.3 V, VD-or VD+=VCOMx=0V RL = 50Ω CL = 50 pF, 1 V Pk-Pk signal , RL = 50Ω CL = 50 pF, 1 V Pk-Pk signal , 1 1 100 50 10 250 -110 0.01 700 200 6 9 10 µs µs ns ps ps ps dB % MHz MHz pF pF pF Power Supply Power Supply Range Positive Supply Current Positive Supply Current (Low Power State) Voltage Low Voltage High Internal Pull-down Resistor 1.7 5 10 1.95 10 100 V µA nA VIL VIH RCTRL SELx pins SELx pins SELx pins 1.2 10 0.5 V V MΩ Note 1: D+, D-, U+, U-, COM+, COM-, SELx can tolerate up to 5.5 V signals. IDT™ HYBRID SWITCH WITH NEGATIVE SIGNAL HANDLING 6 IDTHS231P16 REV J 032708 IDTHS231P16 HYBRID SWITCH WITH NEGATIVE SIGNAL HANDLING HYBRID SWITCH Test Circuits and Waveforms VDD C Logic Input Switch Input Switch Output VDD 50% 0V VINPUT 90% 0V tON VOUT tOFF tr