CBTL04082ABS,518 NXP

CBTL04082A CBTL04082B 3.3 V, 4 differential channel, 2 : 1 multiplexer/demultiplexer switch for PCI Express Gen2 Rev. 1 28 February 2011 Product data sheet 1. General description CBTL04082A/B is an 8-to-4 bidirectional differential channel multiplexer/demultiplexer switch for PCI Express Generation 2 (Gen2) applications. The CBTL04082A/B can switch four differential signals to one of two locations. Using a unique design technique, NXP has minimized the impedance of the switch such that the attenuation observed through the switch is negligible, and also minimized the channel-to-channel skew as well as channel-to-channel crosstalk, as required by the high-speed serial interface. CBTL04082A/B allows expansion of existing high speed ports for extremely low power. The devices pinouts are optimized to match different application layouts. CBTL04082A has input and output pins on the opposite of the package, and is suitable for edge connector(s) with different signal sources on the motherboard. CBTL04082B has outputs on both sides of the package, and the device can be placed between two connectors to multiplex differential signals from a controller. Please refer to Section 8 for layout examples. 2. Features and benefits 4 bidirectional differential channel, 2 : 1 multiplexer/demultiplexer High-speed signal switching for PCIe Gen2 5 Gbit/s High bandwidth: 6 GHz at 3dB Insertion loss: 0.5 dB at 100 MHz 1.2 dB at 2.5 GHz Low intra-pair skew: 5 ps typical Low inter-pair skew: 35 ps maximum Low crosstalk: 30 dB at 2.5 GHz Low off-state isolation: 25 dB at 2.5 GHz Low return loss: 20 dB at 2.5 GHz V operating range: 3.3 V 10 % DD Dual shutdown pins for channel 0/1 and 2/3 independently to minimize power consumption Standby current less than 1 A ESD tolerance: 8kV HBM 1 kV CDM HVQFN42 packageCBTL04082A CBTL04082B NXP Semiconductors 3.3 V, 4 differential channel, 2 : 1 MUX/deMUX switch for PCIe Gen2 3. Applications Routing of high-speed differential signals with low signal attenuation PCIe Gen2 DisplayPort 1.2 USB 3.0 SATA 6 Gbit/s 4. Ordering information Table 1. Ordering information Type number Package Name Description Version CBTL04082ABS HVQFN42 plastic thermal enhanced very thin quad flat package no leads SOT1144-1 1 42 terminals body 3.5 9 0.85 mm CBTL04082BBS HVQFN42 plastic thermal enhanced very thin quad flat package no leads SOT1144-1 1 42 terminals body 3.5 9 0.85 mm 1 Total height after printed-circuit board mounting = 1.0 mm (maximum). 5. Functional diagram A0 P B0 P A0 N B0 N A1 P B1 P A1 N B1 N C0 P C0 N XSD01 C1 P C1 N A2 P B2 P A2 N B2 N A3 P B3 P A3 N B3 N C2 P C2 N XSD23 C3 P C3 N SEL 002aaf752 Fig 1. Functional diagram of CBTL04082A CBTL04082B CBTL04082A CBTL04082B All information provided in this document is subject to legal disclaimers. NXP B.V. 2011. All rights reserved. Product data sheet Rev. 1 28 February 2011 2 of 18