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PDF CBTL04082A Data sheet ( Hoja de datos )
| Número de pieza | CBTL04082A | |
| Descripción | 2 : 1 multiplexer/demultiplexer switch | |
| Fabricantes | NXP Semiconductors | |
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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 −3 dB
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 %
Dual shutdown pins for channel 0/1 and 2/3 independently to minimize power
consumption
Standby current less than 1 μA
ESD tolerance:
8 kV HBM
1 kV CDM
HVQFN42 package
1 page  
NXP Semiconductors
CBTL04082A; CBTL04082B
3.3 V, 4 differential channel, 2 : 1 MUX/deMUX switch for PCIe Gen2
7. Functional description
Refer to Figure 1 “Functional diagram of CBTL04082A; CBTL04082B”.
7.1 Function selection
Table 3. Function selection
X = Don’t care.
XSD01 XSD23 SEL
HIGH
-
X
LOW
-
LOW
LOW
-
HIGH
-
HIGH
X
-
LOW
LOW
-
LOW
HIGH
Function
An, Bn and Cn pins are high-Z, n = 0, 1
An to Bn or vice versa, n = 0, 1
An to Cn or vice versa, n = 0, 1
An, Bn and Cn pins are high-Z, n = 2, 3
An to Bn or vice versa, n = 2, 3
An to Cn or vice versa, n = 2, 3
7.2 Shutdown function
The CBTL04082A/B provides a shutdown function to minimize power consumption when
the application is not active, but power to the CBTL04082A/B is provided. Pin XSD01 and
XSD23 (active HIGH) places channel 0/1 and 2/3 (respectively) in high-impedance state
(non-conducting) while reducing current consumption to near-zero.
Table 4.
XSD01
HIGH
LOW
-
-
Shutdown function
XSD23
Channel 0
- high-Z
- active
HIGH
-
LOW
-
Channel 1
high-Z
active
-
-
Channel 2
-
-
high-Z
active
Channel 3
-
-
high-Z
active
CBTL04082A_CBTL04082B
Product data sheet
All information provided in this document is subject to legal disclaimers.
Rev. 1 — 28 February 2011
© NXP B.V. 2011. All rights reserved.
5 of 18
5 Page 
NXP Semiconductors
CBTL04082A; CBTL04082B
3.3 V, 4 differential channel, 2 : 1 MUX/deMUX switch for PCIe Gen2
14. Package outline
HVQFN42: plastic thermal enhanced very thin quad flat package; no leads;
42 terminals; body 3.5 x 9 x 0.85 mm
D BA
SOT1144-1
terminal 1
index area
EA
A1
detail X
c
e1
1/2 e
e
L
17
b
18 21
v
w
22
CAB
C
e
Eh e2
y1 C
C
y
1
terminal 1
index area
42 39
Dh
38
X
Dimensions
0 2.5 5 mm
scale
Unit(1)
A A1 b c D Dh E Eh e e1 e2 L v w y y1
max 1.00 0.05 0.30
3.6 2.30 9.1 7.70
0.5
mm nom 0.85 0.02 0.25 0.2 3.5 2.05 9.0 7.55 0.5 1.5 8.0 0.4 0.1 0.05 0.05 0.1
min 0.80 0.00 0.20
3.4 1.90 8.9 7.40
0.3
Note
1. Plastic or metal protrusions of 0.075 mm maximum per side are not included.
Outline
version
References
IEC
JEDEC
JEITA
European
projection
SOT1144-1
---
---
---
Fig 7. Package outline SOT1144-1 (HVQFN42)
CBTL04082A_CBTL04082B
Product data sheet
All information provided in this document is subject to legal disclaimers.
Rev. 1 — 28 February 2011
sot1144-1_po
Issue date
09-08-26
09-08-28
© NXP B.V. 2011. All rights reserved.
11 of 18
11 Page | ||
| Páginas | Total 19 Páginas | |
| PDF Descargar | [ Datasheet CBTL04082A.PDF ] | |
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