THCX222R10_Rev.1.00_E
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THCX222R10
High Performance Re-driver with Linear Equalization
General Description
THCX222R10 is a high performance bi-directional
active re-driver for serial links with data rates up to
10Gbps.
THCX222R10 features a continuous time linear
equalizer (CTLE) to provide a boost up to +14.8dB at
5 GHz. It opens an input eye completely closed due
to inter-symbol interference (ISI) induced by the
inter-connect mediums.
Features
Signal Conditioning with Linear Equalizer
Linear Equalization up to +14.8dB@5GHz
Adjustable Voltage Output Swing Linear Range
Adjustable Receiver Equalization and DC Gain
Support USB 3.1 Gen2
-Receiver and LFPS Detect
Single Supply Voltage (3.3V)
Package : QFN30 (2.5mm x 4.5mm)
Applications
USB 3.1 Gen2
USB Host and Devices
Docking Stations
Active Cable
V-by-One® HS
CML Interface
Block Diagram
RX
Detect
Signal
Detect
Signal
Detect
RX
Detect
TX1P
TX1N
MJ
RX2N
RX2P
MJ
RX1P
RX1N
MJ
TX2N
TX2P
MJ
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Pin Configuration
VCC
1
30
25
2
3
4
5
6
7
8
9
10
24
23
22
21
20
19
18
17
16
29
28
27
26
15
14
13
12
11
RX1P
RX1N
GND
GND
GND
GND
TX2N
TX2P
VCC
EN
EQDC1
GND
EQAC1L
EQAC1U
VCC
TX1P
TX1N
GND
GND
GND
GND
RX2N
RX2P
VCC
MODESEL
EQDC2
GND
EQAC2U
EQAC2L
(TOP View)
31 Exposed GND
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Pin Description
Pin Name
Pin No
Type
Description
RX1P 2 CI Super-Speed CML Signal Input of Channel1(CH1)
RX1N 3 CI Super-Speed CML Signal Input of CH1
TX1P 24 CO Super-Speed CML Signal Output of CH1
TX1N 23 CO Super-Speed CML Signal Output of CH1
RX2P 17 CI Super-Speed CML Signal Input of Channel2(CH2)
RX2N 18 CI Super-Speed CML Signal Input of CH2
TX2P 9 CO Super-Speed CML Signal Output of CH2
TX2N 8 CO Super-Speed CML Signal Output of CH2
EN 30 I Channel Enable. With internal 300kΩ Pull-up Resistor.
0 : Power Down
1 : Normal Operation
EQAC1U 26 4LI
(*1) CH1 Rx Equalizer Peak Gain & High Linear Mode setting
This pin along with EQAC1L allows for up to 16 settings.
EQAC1L 27 4LI
(*1) CH1 Rx Equalizer Peak Gain & High Linear Mode setting
This pin along with EQAC1U allows for up to 16 settings.
EQAC2U 14 4LI
(*1) CH2 Rx Equalizer Peak Gain & High Linear Mode setting
This pin along with EQAC2L allows for up to 16 settings.
EQAC2L 15 4LI
(*1) CH2 Rx Equalizer Peak Gain & High Linear Mode setting
This pin along with EQAC2U allows for up to 16 settings.
EQDC1 29 4LI
(*1) CH1 Equalizer DC Gain Setting
EQDC2 12 4LI
(*1) CH2 Equalizer DC Gain Setting
MODESEL 11 4LI
(*1)
Chip Operation Mode Select, if EN=1
0 : CH1/2 enable, RxDetect/SignalDetect enable
R : CH1/2 enable, RxDetect enable, SignalDetect disable
F : CH1/2 enable, RxDetect/SignalDetect disable
1 : CH1 enable, CH2 disable, RxDetect/SignalDetect disable
VCC 1, 10, 16, 25 PWR Power Supply Pin for On-chip Regulator.
GND 4,5,6,7,13,
19,20,21,
22,28,31 GND Ground. Must be tied to the PCB ground plane through an
array of vias.
Pin#31 is exposed pad ground.
CI: CML Input Buffer, CO: CML Output Buffer
I: LVCMOS Input Buffer, 4LI: 4-Level LVCMOS Input Buffer,
PWR: Power Supply, GND: Ground
*1 : 4-Level Input Buffer. With internal 180kΩ pull-up resistor and 300kΩ pull-down resistor.
THCX222R10_Rev.1.00_E
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Operation Mode Settings
Table 1. Operation Mode Setting
Pin Settings
Operation Mode
EN
MODESEL
1
0(*1) CH1/2 Enable, RxDetect Enable, SignalDetect Enable
R(*2) CH1/2 Enable, RxDetect Enable, SignalDetect Disable
F(*3) CH1/2 Enable, RxDetect Disable, SignalDetect Disable
1(*4) CH1 Enable, CH2 Disable, RxDetect Disable, SignalDetect Disable
0 Ignore Chip Power Down.
*1 Tie 0Ω to GND
*2 Tie 180kΩ±5% to GND
*3 Leave pin Open
*4 Tie 0Ω to VCC
Detect Function
THCX222R10 has Input Signal Detect (SignalDetect) and Receiver Detect (RxDetect) functionality for USB3.x
transmission.
Detect functionality must be disable when it is not USB3.x application.
THCX222R10_Rev.1.00_E
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Liner Equalizer Settings
Table 2. Equalization and -1dB Compression Point Linear Swing Settings
EQACnU*1 EQACnL*1 Equalizer Settings (dB)
@5GHz
Output Linear Swing Settings (mVppd)
@100MHz
@5GHz
0 0 7.5
830 760
0 R 8.8
0 F 9.9
0 1 10.9
R 0 11.8
R R 12.6
R F 13.3
R 1 13.9
F 0 8.5
1200 1000
F R 9.7
F F 10.8
F 1 11.8
1 0 12.6
1 R 13.5
1 F 14.2
1 1 14.8 *1 n=1,2
Table 3. Flat Gain Settings
EQDCn*1 Flat Gain Settings (dB)@Up to 300MHz
EQACn*1U=0/R EQACn*1U=F/1
0 -2.6 -1.2
R -1.7 -0.3
F -0.2 1.3
1 3.8 5.2 *1 n=1,2
-1dB Compression Point is showed below. It means output voltage range that has linearity.
1dB
Output Voltage [mVppd]
Input Voltage [mVppd]
-1dB Compression Point Ideal Response
Actual Response
a
bb/a : Equalizer Gain
Figure 1. -1dB Compression Point
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Absolute Maximum Ratings
Table 4. Absolute Maximum Ratings
Parameter
Min
Typ
Max
Unit
Supply Voltage(VCC) -0.3 - 4.0 V
LVCMOS Input/Output Voltage -0.3 - VCC+0.3 V
4-Level LVCMOS Input Voltage -0.3 - VCC+0.3 V
CML Receiver Input Voltage -0.3 - VCC+0.3 V
CML Transmitter Output Voltage -0.3 - VCC+0.3 V
ESD Rating HBM - - ±4 kV
MM - - ±200 V
CDM - - ±1000 V
Storage Temperature -55 - 125 °C
Junction Temperature - - 125 °C
Reflow Peak Temperature/Time - - 260/10 °C/sec
Recommended Operating Conditions
Table 5. Recommended Operating Condition
Parameter
Min
Typ
Max
Unit
Supply Voltage(VCC) 3.0 3.3 3.6 V
Supply Ramp Requirement 0.1 - 50 ms
Operating Temperature -40 - 85 °C
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Equivalent CML Input Schematic Diagram
VCC Vbias
CML_INP
CML_INN
50ohm50ohm
Figure 2. CML Input Schematic Diagram
Equivalent CML Output Schematic Diagram
VCC VCC
CML_OUTP
CML_OUTN
50ohm50ohm
Figure 3. CML Output Schematic Diagram
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Equivalent LVCMOS Input Schematic Diagram
VCC VCC
300kohm
Figure 4. LVCMOS Input Schematics Diagram
Equivalent 4-Level LVCMOS Input Schematic Diagram
VCC VCC
180kohm
300kohm
Figure 5. 4-Level Input Schematics Diagram
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Electrical Specification
Supply Current Table 6. Supply Current
Over recommended operating supply and temperature range unless otherwise specified
Sy
mbol
Parameter
Condition
Min
Typ
Max
Unit
ICCW Active Mode Supply Current EQACn*1U=F/1 - 84 150 mA
EQACn*1U=0/R - 69 123 mA
ICCSL Slumber Mode Supply Current - - 45 65 mA
ICCI Unplug Mode Supply Current - - 1.2 2.9 mA
ICCS Power Down Supply Current - - 120 180 uA
*1 n=1,2
LVCMOS DC Specification Table 7. LVCMOS DC Specification
Over recommended operating supply and temperature range unless otherwise specified
Symbol
Parameter
Condition
Min
Typ
Max
Unit
VIH High Level Input Voltage - 2.0 - VCC V
VIL Low Level Input Voltage - 0 - 0.7 V
4-Level LVCMOS DC Specification
Table 8. 4-Level LVCMOS DC Specification
Over recommended operating supply and temperature range unless otherwise specified
Symbol
Pa
rameter
Condition
Min
Typ
Max
Unit
VTHL Low Level Input
Voltage 0(*1) 0 - VCC*0.25 - 0.3 V
VTHR R-Level Input Voltage R(*2) VCC*0.25 + 0.3 - VCC*0.5 - 0.3 V
VTHF F-Level Input Voltage F(*3) VCC*0.5 + 0.3 - VCC*0.75 - 0.3 V
VTHH High Level Input
Voltage 1(*4) VCC*0.75 + 0.3 - VCC V
IIH_4L High level Input Leak
Current VIN=VCC -100 - 100 uA
IIL_4L Low Level Input Leak
Current VIN=GND -100 - 100 uA
*Must be tied for setting each level
*1 : Tie 0Ω to GND
*2 : Tie 180kΩ±5% to GND
*3 : Leave pin open
*4 : Tie 0Ω to VCC
Receiver DC/AC Specification Table 9. Receiver DC/AC Specification
Over recommended operating supply and temperature range unless otherwise specified
Symbol
P
arameter
Condition
Min
Typ
Max
Unit
VIN-DIFF-PP AC Coupled Differential Input
Peak to Peak Signal 10Gbps PRBS9 - - 1200 mV
RRX-DC Receiver DC Common Mode
Impedance - - 30 - Ω
RRX-DIFF-DC DC Differential Impedance - 72 100 120 Ω
RRX-HIGH-IMP-DC-POS DC Input Common Mode Input
Impedance for V>0 - 25 - - kΩ
RLRX-DIFF Rx Differential Return Loss 0.05 to 5 GHz - -7 - dB
RLRX-CM Rx Common Mode Return Loss 0.05 to 5 GHz - -6 - dB
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Transmitter DC / AC Specifications
Table 10. Transmitter DC / AC specification
Over recommended operating supply and temperature range unless otherwise specified
Symbol
Parameter
Condition
Min
Typ
Max
Unit
TTX-DJ-DD Deterministic Jitter Loss=18dB@5GHz - 0.25 - UIpp
TTX-RJ-DD Random Jitter - - 0.5 - ps RMS
TTX-RISE-FALL Tx Rise/Fall Time 20% to 80 % - 40 - ps
TRF-MISMATCH Tx Rise/Fall Mismatch - - 0.01 - UI
RLTX-DIFF Tx Differential Return Loss
*1
0.05 to 5 GHz - -10 - dB
RLTX-CM Tx Common Mode Return
Loss*1 0.05 to 5 GHz - -6 - dB
RTX-DIFF-DC DC Differential Impedance - 72 100 120 Ω
VTX-RCV-DETECT The Amount of Voltage Change
Allowed during Receiver
Detection - - - 0.6 V
VTX-DC-CM Transmitter DC Common Mode
Voltage - - 1.9 - V
VTX-CM-AC-PP_ACTIVE Transmitter AC Common Mode
Voltage Active - - - 100 mVpp
VTX-IDLE-DIFF-AC-pp Electrical Idle Differential
Peak-Peak Output Voltage - 0 - 10 mV
VTX-IDLE-DIFF-DC DC Electrical Idle Differential
Output Voltage - 0 - 10 mV
CTX-PARASITIC Tx Input Capacitance - - - 1.1 pF
TEN Power On to EN High Delay - 0 - - ns
TACTIVE EN High to Active Delay - - - 200 us
TPROPAGATION Differential Propagation Delay - - 150 - ps
*1 Confirmed evaluation board.
EN
RXnP/N
TPROPAGATION
Fix to VCCTXnP/N
VCC
Hi-Z
TEN
TACTIVE n=1,2
Figure 6. Power on Sequence (SignalDetect Disable/ RxDetect Disable)
3.0V
2.0V
VTX-DC-CM
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Package
LASER MARK
FOR PIN1
TOP VIEW
2.50
BOTTOM VIEW
1.20
0.40
SIDE VIEW
1
10
11 15
16
25
2630
Unit: mm
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Notices and Requests
1. The product specifications described in this material are subject to change without prior notice.
2. The circuit diagrams described in this material are examples of the application which may not always apply to
the customer's design. THine Electronics, Inc. (“THine”) is not responsible for possible errors and omissions
in this material. Please note even if errors or omissions should be found in this material, THine may not be
able to correct them immediately.
3. This material contains THine’s copyright, know-how or other proprietary. Copying or disclosing to third
parties the contents of this material without THine’s prior permission is prohibited.
4. Note that even if infringement of any third party's industrial ownership should occur by using this product,
THine will be exempted from the responsibility unless it directly relates to the production process or functions
of the product.
5. Product Application
5.1 Application of this product is intended for and limited to the following applications: audio-video device,
office automation device, communication device, consumer electronics, smartphone, feature phone, and
amusement machine device. This product must not be used for applications that require extremely
high-reliability/safety such as aerospace device, traffic device, transportation device, nuclear power
control device, combustion chamber device, medical device related to critical care, or any kind of safety
device.
5.2 This product is not intended to be used as an automotive part, unless the product is specified as a
product conforming to the demands and specifications of IATF16949 ("the Specified Product") in this
data sheet. THine accepts no liability whatsoever for any product other than the Specified Product for it
not conforming to the aforementioned demands and specifications.
5.3 THine accepts liability for demands and specifications of the Specified Product only to the extent that
the user and THine have been previously and explicitly agreed to each other.
6. Despite our utmost efforts to improve the quality and reliability of the product, faults will occur with a certain
small probability, which is inevitable to a semi-conductor product. Therefore, you are encouraged to have
sufficiently redundant or error preventive design applied to the use of the product so as not to have our
product cause any social or public damage.
7. Please note that this product is not designed to be radiation-proof.
8. Testing and other quality control techniques are used to this product to the extent THine deems necessary
to support warranty for performance of this product. Except where mandated by applicable law or
deemed necessary by THine based on the user’s request, testing of all functions and performance of the
product is not necessarily performed.
9. Customers are asked, if required, to judge by themselves if this product falls under the category of strategic
goods under the Foreign Exchange and Foreign Trade Act.
10. The product or peripheral parts may be damaged by a surge in voltage over the absolute maximum ratings or
malfunction, if pins of the product are shorted by such as foreign substance. The damages may cause a
smoking and ignition. Therefore, you are encouraged to implement safety measures by adding protection
devices, such as fuses.
Contact:
THine@cel.com
