NCN1154_11

NCN1154 USB 2.0 High Speed, UART and Audio Switch with Negative Signal Capability The NCN1154 is a DP3T switch for combined true−ground audio, 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 USB 2.0, USB 1.1 and USB 1.0. The switch is capable of passing signals with negative voltages as low as 2 V below ground. The device features shunt resistors on the audio ports. These resistors are switched in when the audio channel is off and provide a safe path to ground for any charge that may build up on the audio lines. This reduces Pop & Click noise in the audio system. The NCN1154 is housed in a space−saving, ultra low profile 2.0x1.7x0.5mm, 12 pin UQFN package. Features http://onsemi.com MARKING DIAGRAM 1 UQFN12 MU SUFFIX CASE 523AE ACM G AC = Specific Device Code M = Date Code G = Pb−Free Package • • • • • • • • • • • • • • • 3:1 High Speed Switch USB 2.0, USB 1.1 & USB 1.0 Capable on all Channels High Bandwidth of 820 MHz on D+/D− Capable of Passing Negative Swing Signals Down to −2 V on R/L Channel 1.8 V Compatible Control Pins for 2.7 V v VCC v 4.2 V Audio Channel Shunt Resistors for Pop & Click Noise Reduction Ultra Low THD in Audio Mode: 0.01% into 16 W Load 5.25 V Tolerant Common Pins This is a Pb−Free Device Micro or Mini USB Applications Shared High Speed Data or Audio on a Single Connector Mobile Phones Tablets Bar Code Scanners Portable Devices APPLICATION DIAGRAM NCN1154 D+ D− Rx Tx USB/ UART USB/ UART USB Connector COM+ COM− R L Typical Applications USB/ UART/ Audio IN1, IN2 From Baseband ORDERING INFORMATION Device NCN1154MUTAG Package Shipping† UQFN12 3000 / Tape & Reel (Pb−Free) †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, 2011 May, 2011 − Rev. 3 1 Publication Order Number: NCN1154/D NCN1154 VCC D+ D− TX RX L R VCC 3 9 GND D+ COM− COM+ L IN1 1 12 11 Tx 2 10 COM+ Control Logic IN1 Rx 4 8 COM− D− 5 6 R 7 IN2 GND IN2 (Top View) Figure 1. Functional Block Diagram PIN DESCRIPTIONS Pin # 1 2 3 4 5 6 7 8 9 10 11 12 Name D+ Tx VCC Rx D− R IN2 COM− GND COM+ IN1 L Direction I/O I/O Power I/O I/O I/O Input I/O Power I/O Input I/O Positive Data Line for USB Signals Transmit Data Line for UART Signals Power Supply Receive Data Line for UART Signals Negative Data Line for USB Signals Right Line for Audio Signals Control Input Select Line Figure 2. Pinout Diagram Description Right Audio / Negative Data Common Line Ground Left Audio / Positive Data Common Line Control Input Select Line Right Line for Audio Signals TRUTH TABLE IN1 0 0 1 1 IN2 0 1 0 1 D+, D− Hi Z ON Hi Z Hi Z RX/TX Hi Z Hi Z Hi Z ON L, R Hi Z Hi Z ON Hi Z L, R SHUNT ON ON OFF ON http://onsemi.com 2 NCN1154 OPERATING CONDITIONS MAXIMUM RATINGS Symbol VCC VIS Pins VCC D+ to COM+, D− to COM− L to COM+, R to COM− Tx to COM+, Rx to COM− VIS VIN ICC TS IIS_CON IIS_PK IIN COM+, COM−, R, L, D+, D−, Rx, Tx COM+, COM−, R, L, D+, D−, Rx, Tx IN1, IN2 COM+, COM− IN1, IN2 VCC DC Signal Voltage Tolerance (