PRELIMINARY DATASHEET IDTHS231P16 HYBRID SWITCH WITH NEGATIVE SIGNAL HANDLING Description Features 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. • +1.7 V to +1.95 V single-supply operation • Low distortion negative signal handling capability with Ron typically 3Ω for Audio signal • • • • • 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. 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 • • • • The IDTHS231P16 is available in a small 16-pin QFN package. MP3 and other personal media players PDA’s Audio/USB Switching Cellular and mobile phones Block Diagram SEL0 SEL1 Control Circuit D+ COM+ R U+ D- COM- L U- VDD IDT™ HYBRID SWITCH WITH NEGATIVE SIGNAL HANDLING 1 GND IDTHS231P16 REV J 032708 IDTHS231P16 HYBRID SWITCH WITH NEGATIVE SIGNAL HANDLING HYBRID SWITCH Truth Table (COM+, COM-) VDD GND Pin Assignment (16-pin QFN) 0 0 SEL1 0 1 D+ D- D- D+ 1 0 U+ U- U- U+ 1 1 R L COM+ COM- Power Down R COM+ NC 4 COM- L 1 NC SEL0 NC SEL0 NC SEL1 16-pin QFN Pin Descriptions Pin Number Pin Name Pin Description 1 SEL0 Control signal pin. Internal pull-down resistor. 2 D- 3 V USB Signal. Bi-directional. 3 U- UART Signal. Bi-directional. 4 L Audio signal pin (left). Uni-directional. ±1.5 V signal. 5 COM- 6 NC No connection. 7 NC No connection. 8 COM+ 9 R Audio signal pin (right). Uni-directional. ±1.5 V signal. 10 U+ UART Signal. Bi-directional. 11 D+ 3 V USB Signal. Bi-directional. 12 SEL1 Control signal pin. Internal pull-down resistor. 13 VDD Power pin. +1.8 V VDD. 14 NC No connection. 15 NC No connection. 16 GND Audio and USB signal common pin. Bi-direction in USB mode, uni-directional in Audio mode. Audio and USB signal common pin. Bi-direction in USB mode, uni-directional in Audio mode. Ground pin. 0V reference. IDT™ HYBRID SWITCH WITH NEGATIVE SIGNAL HANDLING 2 IDTHS231P16 REV J 032708 IDTHS231P16 HYBRID SWITCH WITH NEGATIVE SIGNAL HANDLING HYBRID SWITCH Detailed Description 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 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 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 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 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. 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. Logic Control 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. The SELx pins is internally pulled low through a 4MΩ resistor to ground and can be left floating or tri-stated by the µprocessor. 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. Logic control voltage levels: Audio Switches SELx = Logic “0” (Low) when <0.5 V SELx = Logic “1” (High) when >1.2 V 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 Rating VDD to GND -0.3 V to 6.0 V Ambient Operating Temperature Range -40°C to +85°C Continuous Current (audio switches) ±150 mA Peak Current (audio switches) Pulsed 1 ms, 10% duty cycle max. ±300 mA Continuous Current (USB or UART switches) ±40 mA Peak Current (USB or UART switches) Pulsed 1 ms, 10% duty cycle max. ±100 mA Voltages Switch I/O Voltage - D+, D-, COM+, COM- (see note below) -0.3 V to +6 V Switch I/O Voltage - L, R (see note below) -2 V to +2 V SELx (see note below) -0.3 V to [(VDD) + 0.3 V] ESD Rating HBM >7 kV MM >200 V CDM >1 kV Note: These specifications are for absolute maximum rating. Not recommended for typical operation. Recommended Operating Conditions 1 Symbol VDD Parameter Rating Supply Voltage 1.7 V to 1.95 V Storage Temperature -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 Symbol Conditions Min. Typ. Max. Units 1.5 V Audio Switches (L, R) Audio Signal Range On-Resistance RON Matching Between Channels RON Flatness VANALOG RON RON RFLAT(ON) -1.5 3 Ω VL/R = 0.7 V ION = -26 mA 0.3 Ω ION = -26 mA 1.5 Ω VL/R = -2 V, 0V, 0.7 V, VBUS = 0V VAUDIO-0.7 V, VAUDIO ION = -26 mA USB/UART Switches (D+, D-, U+, U-) USB Signal Range On-Resistance RON Matching Between Channels VDigital RON RON OFF-leakage Current ID+(OFF) or ID-(OFF) ON-leakage Current IDx 0 3.6 V 5 Ω VD+/D- = 0V, ION = -8 mA 0.3 Ω D+, D-, R, L = Floating VDD = 1.8 V ±50 nA U+, U-, D+, D-, R, L = 0.3 V VDD = 1.8 V ±50 nA VD+/D- = 0V, 0.4 V, ION = -8 mA IDT™ HYBRID SWITCH WITH NEGATIVE SIGNAL HANDLING 5 IDTHS231P16 REV J 032708 IDTHS231P16 HYBRID SWITCH WITH NEGATIVE SIGNAL HANDLING Parameter Symbol HYBRID SWITCH Conditions Min. Typ. (Note 2) Max. Units (Note 2) Dynamic Characteristics Turn-on Time tON RL = 50Ω, CL = 50 pF, 1 V Pk-Pk signal 1 µs Turn-off Time tOFF RL = 50Ω, CL = 50 pF, 1 V Pk-Pk signal 1 µs 100 ns 50 ps Break-Before-Make Delay tD Skew tSKEW Additive Jitter tJ(RMS) 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 10 ps RL=45Ω, CL=10 pF (Fig.7) 250 ps RL=32Ω, f = 20Hz to 20 kHz, VLor VR=0.707 VRMS (2VP-P) -110 dB f = 20Hz to 20 kHz, VLor VR=0.707 VRMS (2VP-P), RS, RT 0.01 % USB Switch -3 dB Bandwidth RL=50Ω, CL=5 pF 700 MHz UART Switch -3 dB Bandwidth RL=50Ω, CL=5 pF 200 MHz f=1 MHz, VLor VR=VCOMx=0V 6 pF f=1 MHz, VD+or VD-=VCOMx=0V 9 pF f=1 MHz, VDD=3.3 V, VD-or VD+=VCOMx=0V 10 pF Propagation Delay Crosstalk (Channel-to-channel) Total Harmonic Distortion tPD R to COM-, L to COM+ THD D+/D- OFF Capacitance CD+(OFF), CD-(OFF) L/R OFF Capacitance CLOFF, CROFF COM ON Capacitance CCOM-(ON), CCOM+(ON) Power Supply Power Supply Range VDD Positive Supply Current IDD Positive Supply Current (Low Power State) IDD SELx = 00, No input signal Voltage Low VIL SELx pins Voltage High VIH SELx pins RCTRL SELx pins Internal Pull-down Resistor 1.7 1.95 V 5 10 µA 10 100 nA 0.5 V 1.2 V 10 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 C VDD VDD Logic Input tr <20ns tr <20ns 50% 0V Switch Input Switch Input tOFF VINPUT VOUT Audio or USB COMx VOUT IN 90% 90% Switch Output CTRL VINPUT RL 50 ohm GND VIN 0V CL 10pF tON Repeat test for all switches. CL includes fixture and stray capacitance. Logic input waveform is inverted for switches that have the opposite logic sense. VOUT = V(INPUT) Fig. 1A Measurement Points RL RL + R(ON) Fig. 1B Test Circuit Figure 1: Switching Times VDD Logic Input VDD CTRL D- or D+ VINPUT C COMx VOUT L or R 0V IN Switch Output VOUT 90% RL 50 ohm GND VIN CL 10pF 0V tD Repeat test for all switches. CL includes fixture and stray capacitance. Fig 2A Measurement Points Fig. 2B Test Circuit Figure 2: Break-Before-Make Time IDT™ HYBRID SWITCH WITH NEGATIVE SIGNAL HANDLING 7 IDTHS231P16 REV J 032708 IDTHS231P16 HYBRID SWITCH WITH NEGATIVE SIGNAL HANDLING HYBRID SWITCH Marking Diagram (QFN) TBD Notes: 1. “Z” is the device step (1 to 2 characters). 2. YYWW is the last two digits of the year and week that the part was assembled. 3. “$” is the assembly mark code. 4. “G” after the two-letter package code designates RoHS compliant package. 5. “I” at the end of part number indicates industrial temperature range. 6. Bottom marking: country of origin if not USA. Thermal Characteristics Parameter Symbol Rating Units θ JA TBD ° C/W +150 °C -65 to +150 °C Thermal Resistance (see note below) 16-pin QFN package Maximum Junction Temperature (plastic package) Maximum Storage Temperature Range Note: θJA is measured with the component mounted on a high effective thermal conductivity test board in free air. IDT™ HYBRID SWITCH WITH NEGATIVE SIGNAL HANDLING 8 IDTHS231P16 REV J 032708 IDTHS231P16 HYBRID SWITCH WITH NEGATIVE SIGNAL HANDLING HYBRID SWITCH Package Outline and Package Dimensions (16-pin 2.5x2.5mm QFN) Package dimensions are kept current with JEDEC Publication No. 95 Seating Plane A1 Index Area N 1 2 (Ref) ND & NE Even (ND-1)x e (Ref) L A3 e N 1 (Typ) If ND & NE 2 are Even 2 Sawn Singulation E E2 E2 Top View A D 0.08 C Symbol A A1 A3 b e N ND NE D x E BASIC D2 E2 L Min (NE-1)x e (Ref) 2 (Ref) ND & NE Odd C b e Thermal Base D2 2 D2 Millimeters Max 0.50 0.60 0 0.05 0.25 Reference 0.15 0.25 0.40 BASIC 16 4 4 2.50 x 2.50 1.00 1.25 1.00 1.25 0.255 0.425 Ordering Information Part / Order Number Marking Shipping Packaging Package Temperature HS231P16NDGI TBD Tubes 16-pin QFN -40 to +85° C Tape and Reel 16-pin QFN -40 to +85° C HS231P16NDGI8 Parts that are ordered with a “G” after the two-letter package code are the Pb-Free configuration and are RoHS compliant. While the information presented herein has been checked for both accuracy and reliability, Integrated Device Technology (IDT) assumes no responsibility for either its use or for the infringement of any patents or other rights of third parties, which would result from its use. No other circuits, patents, or licenses are implied. This product is intended for use in normal commercial applications. Any other applications such as those requiring extended temperature range, high reliability, or other extraordinary environmental requirements are not recommended without additional processing by IDT. IDT reserves the right to change any circuitry or specifications without notice. IDT does not authorize or warrant any IDT product for use in life support devices or critical medical instruments. IDT™ HYBRID SWITCH WITH NEGATIVE SIGNAL HANDLING 9 IDTHS231P16 REV J 032708 IDTHS231P16 HYBRID SWITCH WITH NEGATIVE SIGNAL HANDLING HYBRID SWITCH Innovate with IDT and accelerate your future networks. Contact: www.IDT.com For Sales For Tech Support 800-345-7015 408-284-8200 Fax: 408-284-2775 www.idt.com/go/clockhelp Corporate Headquarters Integrated Device Technology, Inc. www.idt.com © 2006 Integrated Device Technology, Inc. All rights reserved. Product specifications subject to change without notice. IDT and the IDT logo are trademarks of Integrated Device Technology, Inc. Accelerated Thinking is a service mark of Integrated Device Technology, Inc. All other brands, product names and marks are or may be trademarks or registered trademarks used to identify products or services of their respective owners. Printed in USA