NCN1154 DP3T Data Switch, USB 2.0 High Speed / Audio, with Negative Swing Capability The NCN1154 is a DP3T switch for combined trueground audio, www.onsemi.com USB 2.0 high speed data, and UART applications. It allows portable systems to use a single port to pass either high speed data or audio signals from an external headset the 3 channels being compliant to MARKING USB 2.0, USB 1.1 and USB 1.0. DIAGRAM The switch is capable of passing signals with negative voltages as 1 low as 2 V below ground. The device features shunt resistors on the ACM UQFN12 audio ports. These resistors are switched in when the audio channel is MU SUFFIX off and provide a safe path to ground for any charge that may build up CASE 523AE on the audio lines. This reduces Pop & Click noise in the audio system. The NCN1154 is housed in a spacesaving, ultra low profile AC = Specific Device Code 2.0x1.7x0.5mm, 12 pin UQFN package. M = Date Code = PbFree Package Features 3:1 High Speed Switch APPLICATION DIAGRAM USB 2.0, USB 1.1 & USB 1.0 Capable on all Channels D+ High Bandwidth of 820 MHz on D+/D NCN1154 USB/ Capable of Passing Negative Swing Signals Down to 2 V on R/L D UART Channel 1.8 V Compatible Control Pins for 2.7 V V 4.2 V CC Rx COM+ Audio Channel Shunt Resistors for Pop & Click Noise Reduction USB/ Tx UART COM Ultra Low THD in Audio Mode: 0.01% into 16 Load 5.25 V Tolerant Common Pins R This is a PbFree Device USB/ UART/ L Typical Applications Audio Micro or Mini USB Applications Shared High Speed Data or Audio on a Single Connector IN1, IN2 From Baseband Mobile Phones Tablets Bar Code Scanners ORDERING INFORMATION Portable Devices Device Package Shipping NCN1154MUTAG UQFN12 3000 / Tape & Reel (PbFree) For information on tape and reel specifications, including part orientation and tape sizes, please refer to our Tape and Reel Packaging Specification Brochure, BRD8011/D. Semiconductor Components Industries, LLC, 2015 1 Publication Order Number: April, 2015 Rev. 5 NCN1154/D USB ConnectorNCN1154 VCC D+ COM+ D TX L RX IN1 D+ 1 12 11 L COM COM+ Tx 2 10 R V GND CC 3 9 Rx COM 4 8 Control Logic IN1 IN2 D 5 6 7 R (Top View) GND IN2 Figure 1. Functional Block Diagram Figure 2. Pinout Diagram PIN DESCRIPTIONS Pin Name Direction Description 1 D+ I/O Positive Data Line for USB Signals 2 Tx I/O Transmit Data Line for UART Signals 3 V Power Power Supply CC 4 Rx I/O Receive Data Line for UART Signals 5 D I/O Negative Data Line for USB Signals 6 R I/O Right Line for Audio Signals 7 IN2 Input Control Input Select Line 8 COM I/O Right Audio / Negative Data Common Line 9 GND Power Ground 10 COM+ I/O Left Audio / Positive Data Common Line 11 IN1 Input Control Input Select Line 12 L I/O Left Line for Audio Signals TRUTH TABLE IN1 IN2 D+, D R /T L, R L, R SHUNT X X 0 0 Hi Z Hi Z Hi Z ON 0 1 ON Hi Z Hi Z ON 1 0 Hi Z Hi Z ON OFF 1 1 Hi Z ON Hi Z ON www.onsemi.com 2