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NXP Semiconductors Electronic Components Datasheet

CBTL02042B Datasheet

2 : 1 multiplexer/demultiplexer switch

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CBTL02042A; CBTL02042B
3.3 V, 2 differential channel, 2 : 1 multiplexer/demultiplexer
switch for PCI Express Gen2
Rev. 1 — 10 March 2011
Product data sheet
1. General description
CBTL02042A/B is a 2 differential channel, 2-to-1 multiplexer/demultiplexer switch for PCI
Express Generation 2 (Gen2), and other high-speed serial interface applications. The
CBTL02042A/B can switch two 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. CBTL02042A/B allows expansion of existing high speed ports
for extremely low power.
The device's pinouts are optimized to match different application layouts. CBTL02042A
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. CBTL02042B 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
„ 2 bidirectional differential channel, 2 : 1 multiplexer/demultiplexer
„ High-speed signal switching for PCIe Gen2 5 Gbit/s
„ High bandwidth: 7 GHz at 3 dB
„ Low 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
„ VDD operating range: 3.3 V ± 10 %
„ Shutdown pin (XSD) for power-saving mode
‹ Standby current less than 1 μA
„ ESD tolerance:
‹ 8 kV HBM
‹ 1 kV CDM
„ DHVQFN20 package


NXP Semiconductors Electronic Components Datasheet

CBTL02042B Datasheet

2 : 1 multiplexer/demultiplexer switch

No Preview Available !

NXP Semiconductors
CBTL02042A; CBTL02042B
3.3 V, 2 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
CBTL02042ABQ DHVQFN20 plastic dual in-line compatible thermal enhanced very thin quad flat
package; no leads; 20 terminals; body 2.5 × 4.5 × 0.85 mm[1]
CBTL02042BBQ DHVQFN20 plastic dual in-line compatible thermal enhanced very thin quad flat
package; no leads; 20 terminals; body 2.5 × 4.5 × 0.85 mm[1]
[1] Total height after printed-circuit board mounting = 1.0 mm maximum.
5. Functional diagram
Version
SOT764-1
SOT764-1
A0_P
A0_N
A1_P
A1_N
SEL
XSD
Fig 1. Functional diagram of CBTL02042A; CBTL02042B
B0_P
B0_N
B1_P
B1_N
C0_P
C0_N
C1_P
C1_N
002aaf073
CBTL02042A_CBTL02042B
Product data sheet
All information provided in this document is subject to legal disclaimers.
Rev. 1 — 10 March 2011
© NXP B.V. 2011. All rights reserved.
2 of 16


Part Number CBTL02042B
Description 2 : 1 multiplexer/demultiplexer switch
Maker NXP
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CBTL02042B Datasheet PDF






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