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Six Channel Video QSFP+ Transceiver
QSFP+, LC Duplex, Four Transmitter Channels (4x 6 Gb/s) + Bi-Directional 2.5 Gb/s
Features


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
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Applications


4K60Hz (4:4:4) video signal transmission


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RoHS Pb
Video-dedicated transceiver
Hot-pluggable QSFP+ form factor
One quad-TOSA and BOSA:
- 4x 6 Gb/s CWDM uncooled DFB channels
(1270 nm, 1290 nm, 1310 nm, 1330 nm)
- 1x 2.5 Gb/s Bi-Directional
(1310 nm Tx / 1550 nm Rx)
Up to 10 km on SMF
Power dissipation < 4.0 W
Duplex LC connector
Single +3.3 V power supply
Commercial temperature range -10°C to 70°C
RoHS-6 compliant (lead-free)
Description
The CT-6025VQT-CB4L QSFP+ optical transceiver from Coretek Opto. Corp., is a high performance and
cost-effective solution to optically multiplex and transmit 4K60Hz video signals. It provides four transmit
channels for video signal transmission and two channels (one transmit and one receive) for data signal
transmission.
For video signals, this transceiver uses one TOSA, composed of four channels of CWDM DFB LD with
different wavelengths to optically multiplex video signals and transmit them via a single mode fiber. Each
channel supports 6 Gb/s at up to 10 km. For data signals, this transceiver uses a 2.5 Gb/s bi-directional OSA to
send and receive data signals via a second single fiber.
By adopting the standard QSFP+ LC dual core package with pin configuration adjusted for video signals,
the CT-6025VQT-CB4L is a highly reliable solution optimized for 4K60Hz applications.
EMC
Most equipment utilizing high-speed transceivers will be required to meet the following requirements:
1) FCC in the United States
2) CENELEC EN55022 (CISPR 22) in Europe
To assist the customer in managing the overall equipment EMC performance, the transceivers have been
designed to satisfy FCC class B limits and provide good immunity to radio-frequency electromagnetic fields.
Eye Safety
This laser based single mode transceiver is a CLASS 1 LASER PRODUCT, Hazard level 1. It complies with
IEC 60825-1 Ed.2: 2007-03 and FDA performance standards for laser products (21 CFR 1040.10 and 1040.11)
except for deviations pursuant to Laser Notice 50, dated June 24, 2007.
Coretek Opto Corp.
1F,10 Industry E. Rd. IV., Science-Based Industrial Park, Hsinchu, Taiwan, R.O.C.
http://www.coretek.com.tw
Tel:886-3-5787871
Fax:886-3-5645105
Page 1 of 8
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Version:A
Six Channel Video QSFP+ Transceiver
PRODUCT INFORMATION
Model Number
Data Rate
Wavelength
Output Power
6 Gb/s
Tx1 : 1270 nm
Tx2 : 1290 nm
Tx3 : 1310 nm
Tx4 : 1330 nm
~8.3 dBm
2.5 Gb/s
Bi-Di Tx : 1310 nm
Bi-Di Rx : 1550 nm
-8 ~ -3 dBm
SYMBOL
MIN
MAX
UNIT
Storage Temperature
TS
-40
85
°C
Supply Voltage
VCC
0
4.0
V
Relative Humidity
RH
0
85
%
CT-6025VQT-CB4L
Distance
Up to 10 km
on SMF
Sensitivity
≤-15 dBm
ABSOLUTE MAX RATINGS
PARAMETER
NOTE
Note: Exceeding the limits below may damage the transceiver module permanently.
ELECTRICAL CHARACTERISTICS
PARAMETER
SYMBOL
MIN
MAX
UNIT
Tx Differential Data Input Swing
2.5 Gb/s Transmitter
VID
0.1
0.8
V
Tx Differential Data Input Swing
2.5 Gb/s Receiver
VID
0.1
1.0
V
Rx Differential Data Output Swing
VOD
0.3
1.0
V
VIH
VIL
1.8
0.8
V
V
0.4
V
V
NOTE
6 Gb/s Transmitter
DIGITAL INPUTS (RST, SCL, SDA, 4 Ch DIS-)
Input Voltage High
Input Voltage Low
DIGITAL OPEN-DRAIN OUTPUT (Bi-Di LOS, SDA)
Output Voltage High
Output Voltage Low
VOH
VOL
Vcc-0.1
OPERATING CONDITIONS
PARAMETER
SYMBOL
MIN.
Ambient Operating Temperature
TA
-10
Supply Voltage
VCC
3.14
Total Supply Current
ICC
Data Rate
TYP.
3.30
MAX.
UNIT
70
°C
3.47
V
1
A
Video Signal Transmission
6.0
Gb/s
Data Signal Transmission
2.5
Gb/s
Coretek Opto Corp.
1F,10 Industry E. Rd. IV., Science-Based Industrial Park, Hsinchu, Taiwan, R.O.C.
http://www.coretek.com.tw
Tel:886-3-5787871
Fax:886-3-5645105
NOTE
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Six Channel Video QSFP+ Transceiver
TRANSMITTER ELECTRO-OPTICAL CHARACTERISTICS (4x Video Channels)
PARAMETER
SYMBOL
MIN
Signaling Speed per Lane
UNIT
NOTE
Gb/s
1264.5 ~ 1277.5
1284.5 ~ 1297.5
1304.5 ~ 1317.5
1324.5 ~ 1337.5
Total Average Launched Power
Pout
Average Launched Power per Lane
TXPx
-10
Optical Extinction Ratio per Lane
ER4
3.5
Transmitter and Dispersion Penalty
Relative Intensity Noise
MAX
6.0
Lane Center Wavelength Range
Side Mode Suppression Ratio
TYP.
dBm
2.3
dBm
dB
Tx-TDP
SMSR
8.3
2.3
30
dB
dB
RIN
Transmitter Reflectance
-128
dB/Hz
-12
dB
TRANSMITTER ELECTRO-OPTICAL CHARACTERISTICS (Bi-Directional Channel)
PARAMETER
SYMBOL
MIN
Signaling Speed
TYP.
MAX
2.5
Optical Output Power (Average)
PO
-8
Optical Extinction Ratio
ER
5.0
Center Wavelength
λC
1260
Spectral Bandwidth (RMS)

UNIT
NOTE
Gb/s
-3
dBm
dB
1310
1360
2
nm
nm
RECEIVER ELECTRO-OPTICAL CHARACTERISTICS (Bi-Directional Channel)
PARAMETER
SYMBOL
MIN
Maximum Input Power
Pmax
0.5
Receiver Sensitivity
Pmin
-15
dBm
Loss of Signal - Deasserted
Pd
-17
dBm
Loss of Signal - Asserted
Pa
-30
Loss of Signal - Hysteresis
Hys
0.5
Optical Return Loss
ORL
12
λ
1480
Operating Wavelength
TYP.
MAX
UNIT
NOTE
dBm
1
dBm
1
dB
dB
1550
1580
nm
2
Notes: 1. Measured with 231-1 PRBS at BER<10-12
2. At least 30 dB optical isolation for the wavelength 1260 to 1360 nm.
Coretek Opto Corp.
1F,10 Industry E. Rd. IV., Science-Based Industrial Park, Hsinchu, Taiwan, R.O.C.
http://www.coretek.com.tw
Tel:886-3-5787871
Fax:886-3-5645105
Page 3 of 8
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Version:A
Six Channel Video QSFP+ Transceiver
BLOCK DIAGRAM OF TRANSCEIVER
PIN OUT DIAGRAM OF TRANSCEIVER
Coretek Opto Corp.
1F,10 Industry E. Rd. IV., Science-Based Industrial Park, Hsinchu, Taiwan, R.O.C.
http://www.coretek.com.tw
Tel:886-3-5787871
Fax:886-3-5645105
Page 4 of 8
10/30/2017
Version:A
Six Channel Video QSFP+ Transceiver
Coretek Opto Corp.
1F,10 Industry E. Rd. IV., Science-Based Industrial Park, Hsinchu, Taiwan, R.O.C.
http://www.coretek.com.tw
Tel:886-3-5787871
Fax:886-3-5645105
Page 5 of 8
10/30/2017
Version:A
Six Channel Video QSFP+ Transceiver
PIN OUT DESCRIPTION
Pin
Symbol
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
29
30
31
32
33
34
35
36
37
38
GND
TX2TX2+
GND
TX4TX4+
GND
NC
RST
Vcc Rx
SCL
SDA
GND
Bi-Di RX+
Bi-Di RXGND
Bi-Di TX+
Bi-Di TXGND
GND
Bi-Di LOS
4CH DISGND
NC
NC
GND
GND
NC
Vcc Tx
Vcc 1
NC
GND
TX3+
TX3GND
TX1+
TX1GND
Logic
CML-I
CML-I
CML-I
CML-I
LVTTL-I
LVCMOS-I/O
LVCMOS-I/O
CML-O
CML-O
CML-I
CML-I
LVTTL-O
LVTTL-I
CML-I
CML-I
CML-I
CML-I
Functional Description
Ground
Transmitter Inverted Data Input
Transmitter Non-Inverted Data Input
Ground
Transmitter Inverted Data Input
Transmitter Non-Inverted Data Input
Ground
NC
Module Reset
+3.3 V Power Supply Receiver
2-wire Serial Interface Clock
2-wire Serial Interface Data
Ground
2.5 Gb/s Aux channel backward Rx+
2.5 Gb/s Aux channel backward RxGround
2.5 Gb/ Aux channel forward TX+
2.5 Gb/s Aux channel forward TXGround
Ground
Bi-Di Loss of Signal
4 Channel Tx Disable (all channels together)
Ground
NC
NC
Ground
Module Present
NC
+3.3 V Power Supply Transmitter
+3.3 V Power Supply
Low Power Mode
Ground
Transmitter Non-Inverted Data Input
Transmitter Inverted Data Input
Ground
Transmitter Non-Inverted Data Input
Transmitter Inverted Data Input
Ground
Coretek Opto Corp.
1F,10 Industry E. Rd. IV., Science-Based Industrial Park, Hsinchu, Taiwan, R.O.C.
http://www.coretek.com.tw
Tel:886-3-5787871
Fax:886-3-5645105
Page 6 of 8
10/30/2017
Version:A
Six Channel Video QSFP+ Transceiver
RECOMMENDED CIRCUIT SCHEMATIC
Coretek Opto Corp.
1F,10 Industry E. Rd. IV., Science-Based Industrial Park, Hsinchu, Taiwan, R.O.C.
http://www.coretek.com.tw
Tel:886-3-5787871
Fax:886-3-5645105
Page 7 of 8
10/30/2017
Version:A
Six Channel Video QSFP+ Transceiver
MECHANICAL DIMENSIONS
Units in mm
All dimensions are ±0.1mm unless otherwise specified.
Claim: CORETEK Opto Corp. reserves the right to make changes in the specification described hereinafter without prior notice.
Coretek Opto Corp.
1F,10 Industry E. Rd. IV., Science-Based Industrial Park, Hsinchu, Taiwan, R.O.C.
http://www.coretek.com.tw
Tel:886-3-5787871
Fax:886-3-5645105
Page 8 of 8
10/30/2017
Version:A
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