VIA Labs, Inc. 
www.via-labs.com 
 
7F, 529-1, Zhongzheng Rd., 
Xindian District, New Taipei City 231 Taiwan 
 
Tel: 
Fax: 
(886-2) 2218-1838 
(886-2) 2218-8924 
Email: 
sales@via-labs.com.tw 
 
 
 
 
Datasheet 
 
 
 
VL161 
 
 
 
 
USB Type-C Data Switch for USB 3.1 Gen2 (10Gbps) 
May 24, 2016 
Revision 0.92 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
                                                                                        VL161 USB Type-C Data Switch for USB 3.1 Gen2 (10Gbps) 
 
Revision History   
 
Revision No. 
Draft Date 
History 
Initial 
0.50 
0.51 
0.6 
0.90 
0.91 
0.92 
Oct. 08. 2015 
Preliminary Release 
Oct. 16. 2015 
Add DC Parameter 
Feb. 02. 2016 
Add Tape and Reel Information 
Feb. 17. 2016 
Update Electrical Specification 
Apr. 11. 2016 
Update ordering information 
May. 24. 2016 
Update Package Mechanical Specification 
TH 
TH 
TH 
TH 
TH 
TH 
 
 
 
- 2 - 
                                                                                        VL161 USB Type-C Data Switch for USB 3.1 Gen2 (10Gbps) 
 
 
Contents 
 
Product Feature ................................................................................................................................................................. - 4 - 
Block Diagram .................................................................................................................................................................... - 5 - 
Pinout ................................................................................................................................................................................ - 6 - 
Pin List ............................................................................................................................................................................... - 7 - 
Pin Descriptions ................................................................................................................................................................. - 8 - 
Application Diagram .......................................................................................................................................................... - 9 - 
Electrical Specification ..................................................................................................................................................... - 11 - 
Reflow Profile .................................................................................................................................................................. - 12 - 
Package Mechanical Specifications .................................................................................................................................. - 13 - 
Package Top Side Marking ................................................................................................................................................ - 14 - 
Ordering Information ....................................................................................................................................................... - 14 - 
Tape and Reel Information ............................................................................................................................................... - 15 - 
 
 
 
 
List of Figures 
 
Figure 1 - Block Diagram..................................................................................................................................................... - 5 - 
Figure 2 - Pin Diagram (QFN-28) ......................................................................................................................................... - 6 - 
Figure 3 - Reflow .............................................................................................................................................................. - 12 - 
Figure 4 - Mechanical Specification .................................................................................................................................. - 13 - 
Figure 5 - Package Top Side Marking ................................................................................................................................ - 14 - 
Figure 6 - Tape & Reel Information ................................................................................................................................... - 15 - 
 
 
 
 
- 3 - 
                                                                                        VL161 USB Type-C Data Switch for USB 3.1 Gen2 (10Gbps) 
 
Product Feature   
 
VL161 
USB Type-C Data Switch for USB 3.1 Gen2 (10 Gbps) 
 
 
  4:2 10Gbps USB Type-C Data Switch 
  Support up to 10Gbps 
  2 Differential Channel, 2:1 MUX/DeMUX 
  Compatible with 10Gbps USB3.1 Gen2 
  Low power consumption with 0.5mA active and 4uW shutdown 
  High DC common mode voltage supporting to 2.2V 
  28 pins QFN 3.5 x 4.5mm package 
  ESD > 4KV, CDM > 500V 
  MUX 
– 
Insertion loss: 1.5dB @ 5GHz typ. 
–  Return loss: 15dB @ 5GHz typ. 
–  Crosstalk Isolation: 30dB @ 5GHz typ. 
–  Off Isolation: 15dB @ 5GHz typ. 
 
 
- 4 - 
                                                                                        VL161 USB Type-C Data Switch for USB 3.1 Gen2 (10Gbps) 
 
Block Diagram 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
Figure 1 - Block Diagram 
- 5 - 
                                                                                        VL161 USB Type-C Data Switch for USB 3.1 Gen2 (10Gbps) 
 
Pinout 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
Figure 2 - Pin Diagram (QFN-28) 
- 6 - 
                                                                                        VL161 USB Type-C Data Switch for USB 3.1 Gen2 (10Gbps) 
 
Pin List 
 
Pin 
1 
2 
3 
4 
5 
6 
7 
8 
9 
10 
11 
12 
13 
14 
Pin Name 
NC 
TX1_P 
TX1_N 
TX2_N 
TX2_P 
RX1_P 
RX1_N 
RX2_N 
RX2_P 
NC 
NC   
NC 
NC 
NC 
 
 
 
 
 
 
 
Pin 
15 
16 
17 
18 
19 
20 
21 
22 
23 
24 
25 
26 
27 
28 
Pin Name 
NC 
NC 
RX_N 
RX_P 
GND 
TXN 
TXP 
NC 
NC 
DIR_SEL 
CE 
VCC5V 
NC 
NC 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
- 7 - 
                                                                                        VL161 USB Type-C Data Switch for USB 3.1 Gen2 (10Gbps) 
 
Pin Descriptions 
 
Pin Name 
Pin # 
1 
2 
3 
4 
5 
6 
7 
8 
9 
10 
11 
12 
13 
14 
15 
16 
17 
18 
19 
20 
21 
22 
23 
24 
25 
26 
27 
28 
NC 
TX1_P 
TX1_N 
TX2_N 
TX2_P 
RX1_P 
RX1_N 
RX2_N 
RX2_P 
NC 
NC 
NC 
NC 
NC 
NC 
NC 
RX_N 
RX_P 
GND 
TXN 
TXP 
NC 
NC 
DIR_SEL 
CE 
VCC5V 
NC 
NC 
 
 
I/O 
 
No connection 
Description 
High Speed I/O  USB differential pair 
High Speed I/O  USB differential pair 
High Speed I/O  USB differential pair 
High Speed I/O  USB differential pair 
 
 
 
 
 
 
 
No connection 
No connection 
No connection 
No connection 
No connection 
No connection 
No connection 
High Speed I/O  USB differential pair 
GND 
Ground 
High Speed I/O  USB differential pair 
 
 
AI 
 
No connection 
No connection 
(3.3V logic)    BYPASS mode     
(1)DIR_SEL='L',  output 
(2)DIR_SEL='H',  output 
Chip Enable (5V = Enable) 
PWR 
VCC5V for controller 
 
 
No connection 
No connection 
- 8 -