Modulator Driver. CX60087 Datasheet


CX60087 Driver. Datasheet pdf. Equivalent


Part Number

CX60087

Description

10.7 Gbps EML and LiNO3 Modulator Driver

Manufacture

Mindspeed Technologies

Total Page 18 Pages
Datasheet
Download CX60087 Datasheet


CX60087
Data Sheet
CX60087
10.7 Gbps EML and LiNO3 Modulator Driver
Key Features
Applications
• • Fiber Optic Transceiver/Transponder Modules
High Voltage Swing: up to 6 V P-P for Single-Ended and
Fiber Optic Communication Systems (OC-192/STM-64)
12 V P-P for Differential Output
High-Speed Operation (Up to 10.7 Gbps NRZ Data)
On-Chip Data Retiming Option
mSingle-Ended Data and Clock Input with 50 Termination
Output Current of 0-100 mA into 50
oOptimized to supply an output current of 80 to 100 mA into 50
.cLaser Diode Bias Current of 0 - 120 mA
Duty Control, Polarity Control and Loss of Signal Indication
UProduct Description
SONET/SDH Test Equipment
Data Communications
Voltage Driver
The CX60087 is a high-speed laser modulator driver designed for long haul applications. This driver is typically used in transmitter modules for fiber-
t4optic communications, such as Synchronous Optical Network (SONET), Synchronous Digital Hierarchy (SDH), and Dense Wavelength Division
Multiplexed (DWDM).
eThe device can be used as a Lithium Niobate (LiNO3) modulator driver or EA modulator driver When an output Bias-Tee is tied to +1.0 V, the
eCX60087 provides a 6 V P-P output swing single-ended and 12 V P-P swing differential into a 50 load for data rates of 10.7 Gbps. When the output
Bias-Tee is tied to ground the output swing is 3.5 V P-P single-ended at 10.7 Gbps.
hThe CX60087 can deliver a maximum output drive current of 100 mA and provide bias currents up to 120 mA. Figure 1 is the functional block
Sdiagram, Table 1 lists functional block descriptions, and Table 2 lists terminal name descriptions. The CX60087 is available in a 30-terminal ceramic
taquad flat pack as shown in Figure 13.
Figure 1. CX60087 Laser Modulator Driver Functional Block Diagram
aRetimDisable
PolCntl
IBCntl IBMon IB
w.DDataCap
ww omDataIn
et4U.cClkIn
SheClkCap
www.DataRev. 3, 05/18/01.
DC Bias
Current Cntlr
2:1
D-FF Mux
InBuffers
Polarity
Cntlr
Duty
Cntlr
Out
Buffer
Driver
IPOutP
IPOutN
LOS
Detect
DrvMon
IPMonP
IPMonN
LOS DutyCntl IPCntl
Information in this Data Sheet is PRELIMINARY and is subject to change without notice.
Mindspeed Proprietary and Confidential
Pg. 1 of 18

CX60087
Table 1. Functional Block Descriptions
CX60087, 10 Gbps EML and LiNO3 Modulator Driver
Block
2:1 Mux
DC Bias Current Cntlr
D-FF
Driver
DrvMon
DutyCntlr
InBuffers
LOS Detect
OutBuffer
PolarityCntlr
Function
Data or retimed data select
Laser diode DC bias current controller
D-type flip flop for retiming input signal
Output driver stage with 200 on-chip back termination (variable output current)
Output current and duty cycle monitor circuit (sinks 1/20 the value of driver current)
Duty cycle control of output current (external control)
Single-ended data and clock input/differential output buffer amplifiers
Loss of input signal detector
Buffer amplifier
Polarity control circuit
Table 2. Terminal Name Descriptions
Number Terminal Name
Description
Type
I/O Rate/DC
13 ClkIn Clock input
CML I 10 Ghz
16
ClkCap
ClkIn reference terminal
I DC
11
DataIn
Data input
CML I 10 Gbps
8
DataCap
DataIn reference terminal
I DC
17
DutyCntl
Output current, duty cycle control signal input
Analog
I DC
1 IB Laser diode, DC bias current output
Current Sink O DC
2
IBCntl
DC bias current, control signal input
Analog
I DC
3
IBMon
DC bias current monitor
O DC
19
IPCntl
Output current, control signal input
Analog
I DC
20
IPMonN
Output current monitor, inverted output
Current Sink O DC
21
IPMonP
Output current monitor, non-inverted output
Current Sink O DC
25
IPOutN
Inverted output
Current Output
O 10 Gbps
27
IPOutP
Non-inverted output
Current Output
O 10 Gbps
6
LOS Loss of input or clock signal indicator output
Current Sink (1)
O
DC
5
PolCntl
Input signal polarity control signal input
ECL I DC
7 RetimDisable Input for disabling data and clock retiming
(2) I DC
Note 1. See description of current sinking in LOS section, Figure 6.
Note 2. To select retimed data this terminal can be connected to VEE or it can float. Connecting the RetimDisable terminal to
data.
ground selects non-retimed
Rev. 3, 05/18/01.
Information in this Data Sheet is PRELIMINARY and is subject to change without notice.
Mindspeed Proprietary and Confidential
Pg. 2 of 18


Features Data Sheet CX60087 10.7 Gbps EML and Li NO3 Modulator Driver Key Features • • • • • • • • High Vol tage Swing: up to 6 V P-P for Single-En ded and 12 V P-P for Differential Outpu t High-Speed Operation (Up to 10.7 Gbps NRZ Data) On-Chip Data Retiming Option Single-Ended Data and Clock Input with 50 Ω Termination Output Current of 0 -100 mA into 50 Ω Optimized to supply an output current of 80 to 100 mA into 50 Ω Laser Diode Bias Current of 0 - 120 mA Duty Control, Polarity Control and Loss of Signal Indication Applicat ions • • • • • Fiber Optic Tr ansceiver/Transponder Modules Fiber Opt ic Communication Systems (OC-192/STM-64 ) SONET/SDH Test Equipment Data Communi cations Voltage Driver Product Descrip tion The CX60087 is a high-speed laser modulator driver designed for long hau l applications. This driver is typicall y used in transmitter modules for fiber optic communications, such as Synchrono us Optical Network (SONET), Synchronous Digital Hierarchy (SDH), and Dense Wavelength Division Mu.
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