CBTU02044HEJ NXP

CBTU02044 High-speed two-differential channels 1-to-2 switch Rev. 1.1 28 September 2021 Product data sheet 1 General description CBTU02044 is a high-speed differential 1-to-2 switching chip optimized to interface with PCIe4.0 for server and client applications. This high performance switch chip could be used for other high-speed interfaces such as PCIe-Gen4, MIPI, DP1.4, and DDR. CBTU02044 also functions as a 2-to-1 MUX by selecting 1 (Port A) as output out of one of the two differential ports (either Port B or C). Pinouts are optimized for minimum number of layout layers and for achievement of very low crosstalk to meet stringent crosstalk requirements at higher data rate. CBTU02044 is a small package with optimized footprint for smaller real estate occupancy. CBTU02044 is available in 1.6 mm x 2.4 mm x 0.5 mm HUQFN16 package with 0.4 mm pitch. 2 Features and benefits Optimized high-speed signal integrity Minimize crosstalk to meet stringent PCIe4.0 requirement Two-differential channels 1-to-2 switch/2-to-1 mux Low insertion loss (typ): 0.56 dB at 100 MHz 1.1 dB at 5 GHz 1.5 dB at 8 GHz Low off-state isolation: -70 dB at 100 MHz, -23 dB at 5 GHz, -18 dB at 8 GHz Low return loss (typ): 21 dB at 2.5 GHz 18 dB at 5 GHz 15 dB at 8 GHz Low ON-state resistance: 10 (typ) 3 dB bandwidth (typ): 17 GHz (typ) DDNEXT < -50 dB 8 GHz DDFEXT < -48 dB 8 GHz VIC common mode input voltage VIC: 0 V to 2 V Differential input voltage VID <1.6 V Intra-pair skew <4 ps VDD power supply voltage range: 1.62 V to 3.63 V Low current consumption: For active mode = 200 A (typ) For power-saving = 3 A (typ) CMOS SEL and XSD pins Back current protection on all I/O pins of these switches Patent pending high performance analog pass-gate technology All channels support rail-to-rail input voltage (up to 2.4 V) HUQFN16 1.6 mm 2.4 mm 0.5 mm package with 0.4 mm pitch ESD: 2000 V HBM 1000 V CDM Operating temperature range: -40 C to +85 CNXP Semiconductors CBTU02044 High-speed two-differential channels 1-to-2 switch 3 Application example ch0 CONNECTOR 1 ch0 ch1 HOST ch1 CBTU02044 ch0 CONNECTOR 2 ch1 aaa-035934 Figure 1.Application example 4 Ordering information Table 1.Ordering information Type number Topside Package marking Name Description Version CBTU02044HE 44 HUQFN16 Plastic, super thin quad flat package no SOT1832-1 leads 16 terminals body 1.6 mm x 2.4 mm x 0.5 mm 0.4 mm pitch 4.1 Ordering options Table 2.Ordering options Type number Orderable part number Package Packing Minimum Temperature method order quantity CBTU02044 CBTU02044HEJ HUQFN16 REEL 13 10000 T = -40 C to +85 C amb Q1/T1 *STANDARD MARK SMD 5 Block diagram A0 P B0 P A0 N B0 N A1 P B1 P A1 N B1 N C0 P C0 N C1 P C1 N SEL XSD aaa-021443 Figure 2.Block diagram CBTU02044 All information provided in this document is subject to legal disclaimers. NXP B.V. 2021. All rights reserved. Product data sheet Rev. 1.1 28 September 2021 2 / 24