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Maxim Integrated Semiconductor Electronic Components Datasheet

PHY1071-01 Datasheet

125Mbps - 2.125Gbps VCSEL Driver / Post amp

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19-5682; Rev 3/12
A Maxim Integrated Products Brand
PHY1071-01
125Mbps – 2.125Gbps VCSEL Driver / Post amp with Digital Diagnostics
Features
Multi-rate from 125Mbps to 2.125Gbps
VCSEL driver output stage with 16mA max
modulation drive and 20mA bias current
Programmable mean power control loop
Temperature compensated modulation current
Integrated limiting amplifier with selectable
swing CML output to reduce radiated emissions
Programmable receiver low pass filter
Integrated Loss Of Signal function
Digital diagnostic mode compliant with SFF-
8472 using an external MCU
Stand-alone mode where device parameters
are loaded from an external EEPROM
-40°C to +85°C operating range
36pin 6mm x 6mm QFN package
Eye safety logic
Applications
SONET, Fibre Channel, GbE
SFF and SFP Modules
Description
The PHY1071-01 is a combined VCSEL driver and
limiting amplifier with support for Digital Diagnostic
Monitoring for use within small form factor
modules for Fibre Channel applications.
The transmitter integrates a high speed output
stage with programmable bias and modulation
currents, controlled through a 2-wire serial
interface. The mean power control loop allows
connection in both common cathode and common
anode configurations.
A Loss Of Signal (LOS) detector is included with
detection based on either the receiver photo
detector average current or received signal
modulation amplitude.
When used in digital diagnostics mode the
integrated A/D converters measuring temperature,
TX Bias, Supply Voltage, RX Signal Strength and
Mean Power are read via a 2-wire serial interface.
An external Microcontroller Unit (MCU) is used for
calibrating real time diagnostic monitors and alarm
generation.
LOS
RXOUT+
RXOUT-
TXIN+
TXIN-
TSENSE
TX_DISABLE
TX_FAULT
SCL
SDA
MUX
O/P
Ref
Ref
Level
Detect
Voltage
Reg
Low Pass
Filter
Temperature
Comp
Safety
Logic
Driver
Modulation
Mean Power
Control Loop
Internal
Registers
& 2 Wire I/F
RSSI
RXIN+
RXIN-
VCSEL+
VCSEL-
VCSEL_BIAS
MPD
SHUTDOWN
SA_SDA
SA_SCL
SA_SDA
RESET
VDD_RXO
VSS_RX
RXOUT-
RXOUT+
SDA
SCL
RREF
1
9
QFN36
27 VDD_TX
VGG
VSS_TX
VCSEL+
VCSEL-
VSS_TX
VDD_TXO
VDD_TX
19 VCSEL_BIAS
Figure 1 - Outline Block Diagram
Figure 2 - Device Pin Out (Top View)
PHY1071-01-RD-1.2
Released Datasheet
Page 1


Maxim Integrated Semiconductor Electronic Components Datasheet

PHY1071-01 Datasheet

125Mbps - 2.125Gbps VCSEL Driver / Post amp

No Preview Available !

Table of Contents
1. Ordering Information....................................................................................................................................3
2. Pin Description.............................................................................................................................................3
3. Key Specifications........................................................................................................................................5
3.1. Absolute Maximum Ratings ................................................................................................................5
3.2. Continuous Ratings.............................................................................................................................5
3.3. Receiver ..............................................................................................................................................5
3.4. Transmitter ..........................................................................................................................................7
3.5. 2-Wire Serial Interface ........................................................................................................................9
3.6. DC Characteristics: TX_FAULT; TX_DISABLE; LOS.......................................................................10
3.7. Typical Operating Characteristics .....................................................................................................11
4. Functional Description ...............................................................................................................................12
4.1. Overview ...........................................................................................................................................12
4.2. Receiver Features.............................................................................................................................13
4.3. Transmitter Features.........................................................................................................................16
4.4. VCSEL Safety Features ....................................................................................................................18
4.5. Tsense Temperature Sensor ............................................................................................................20
5. Control Interface ........................................................................................................................................21
5.1. Memory Map .....................................................................................................................................21
5.2. Operation...........................................................................................................................................22
5.3. Digital Diagnostics Mode...................................................................................................................27
5.4. Stand-Alone Mode ............................................................................................................................29
5.5. 2-wire Serial Interface .......................................................................................................................31
6. Register Map..............................................................................................................................................33
7. Simplified Interface Models........................................................................................................................42
8. Typical Applications ...................................................................................................................................44
8.1. Power Supply Connections ...............................................................................................................45
9. Packaging ..................................................................................................................................................47
10. Contact Information....................................................................................................................................48
PHY1071-01-RD-1.2
Released Datasheet
Page 2


Part Number PHY1071-01
Description 125Mbps - 2.125Gbps VCSEL Driver / Post amp
Maker Maxim Integrated
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