MAX9371ESA+T ,LVTTL/TTL-to-Differential LVPECL/PECL TranslatorsELECTRICAL CHARACTERISTICS(V = 3.0V to 5.25V for MAX9370/MAX9371, V = 3.0V to 3.6V for MAX9372, out ..
MAX9371ESA+T ,LVTTL/TTL-to-Differential LVPECL/PECL TranslatorsApplicationsMAX9370EUA* -40°C to +85°C 8 µMAXPrecision Clock/Data Level TranslationMAX9370ESA -40°C ..
MAX9372ESA ,LVTTL/TTL-to-Differential LVPECL/PECL TranslatorsELECTRICAL CHARACTERISTICS(V = 3.0V to 5.25V for MAX9370/MAX9371, V = 3.0V to 3.6V for MAX9372, out ..
MAX9374AEKA+T ,Differential LVPECL-to-LVDS TranslatorsApplications Ordering InformationPrecision Clock BufferTEMP PIN- TOPPARTLow-Jitter Data Repeater RA ..
MAX9374AEKA-T ,Differential LVPECL-to-LVDS TranslatorsApplications Ordering InformationPrecision Clock BufferTEMP PIN- TOPPARTLow-Jitter Data Repeater RA ..
MAX9375EUA ,Single LVDS/Anything-to-LVPECL TranslatorApplications Ordering InformationBackplane Logic Standard TranslationPART TEMP RANGE PIN-PACKAGELAN ..
MB8868A ,MOS Universal Asynchronous Receiver / Transmitter (UART)Features
I Full or Hall Duplex
Operation
I Completely Programmable
I Start Bit Generated
..
MB89121 ,8-bit Proprietary MicrocontrollerFUJITSU SEMICONDUCTORDS07-12509-6EDATA SHEET8-bit Proprietary MicrocontrollerCMOS2F MC-8L MB89120/1 ..
MB89123A ,8-bit Proprietary MicrocontrollerFUJITSU SEMICONDUCTORDS07-12509-6EDATA SHEET8-bit Proprietary MicrocontrollerCMOS2F MC-8L MB89120/1 ..
MB89133A ,8-bit Proprietary MicrocontrollerFUJITSU SEMICONDUCTORDS07-12510-9EDATA SHEET8-bit Proprietary MicrocontrollerCMOS2F MC-8L MB89130/1 ..
MB89153 ,8-bit Proprietary MicrocontrollerFUJITSU SEMICONDUCTORDS07-12506-4EDATA SHEET8-bit Proprietary MicrocontrollerCMOS2F MC-8L MB89150/1 ..
MB89163 ,8-bit Proprietary MicrocontrollerFUJITSU SEMICONDUCTORDS07-12405-2EDATA SHEET8-bit Proprietary MicrocontrollerCMOS2F MC-8L MB89160/1 ..
MAX9371ESA+T
LVTTL/TTL-to-Differential LVPECL/PECL Translators
General DescriptionThe MAX9370/MAX9371/MAX9372 LVTTL/TTL-to-differ-
ential LVPECL/PECL translators are designed for high-
speed communication signal and clock driver
applications. The MAX9370/MAX9372 are dual
LVTTL/TTL-to-LVPECL/PECL translators that operate in
excess of 1GHz. The MAX9371 is a single translator.
The MAX9370/MAX9371 operate over a wide 3.0V to
5.25V supply range, allowing high-performance clock
or data distribution in systems with a nominal 3.3V or
5.0V supply. The MAX9372 is designed to operate from
3.0V to 3.6V.
The devices default to output high if the input is discon-
nected. They feature low 270ps propagation delay. The
MAX9370/MAX9371/MAX9372 employ industry-stan-
dard flow-through pinouts. These devices are specified
for operation from -40°C to +85°C, and are offered in
space-saving, 8-pin SOT23, µMAX, and SO packages.
ApplicationsPrecision Clock/Data Level Translation
Central Office Clock Distribution
DSLAM/DLC
Base Station
Mass Storage
FeaturesGuaranteed 1GHz Operating Frequency at 600mV
Differential Output270ps Propagation Delay10ps Output-to-Output Skew (MAX9370/MAX9372)Wide Supply Range: 3.0V to 5.25V
(MAX9370/MAX9371)ESD Protection > 2kV (Human Body Model)Output High with Input OpenAvailable in Small 8-Pin SOT23, µMAX, and SO
PackagesImproved Upgrades to MC100EL22, MC100EPT20,
MC100EPT22
MAX9370/MAX9371/MAX9372VTTL/TTL-to-Differential LVPECL/PECLranslators
Ordering InformationMAX9370
MAX9371
MAX9372
TTL/LVTTL
INPUT
Z0 = 50Ω
Z0 = 50Ω50Ω50Ω
PECL/LVPECL
RECEIVER
VCC - 2.0V
Typical Operating Circuit19-2377; Rev 0; 4/02
PARTTEMP RANGEPIN-PACKAGE
MAX9370EKA-T*-40°C to +85°C8 SOT23-8
MAX9370EUA*-40°C to +85°C8 µMAX
MAX9370ESA-40°C to +85°C8 SO
MAX9371EKA-T*-40°C to +85°C8 SOT23-8
MAX9371EUA*-40°C to +85°C8 µMAX
MAX9371ESA-40°C to +85°C8 SO
MAX9372EKA-T*-40°C to +85°C8 SOT23-8
MAX9372EUA*-40°C to +85°C8 µMAX
MAX9372ESA-40°C to +85°C8 SO
*Future product—contact factory for availability.
Pin Configurations/Functional Diagrams appears at end of
data sheet.
MAX9370/MAX9371/MAX9372
LVTTL/TTL-to-Differential LVPECL/PECL
Translators
ABSOLUTE MAXIMUM RATINGSStresses beyond those listed under “Absolute Maximum Ratings” may cause permanent damage to the device. These are stress ratings only, and functional
operation of the device at these or any other conditions beyond those indicated in the operational sections of the specifications is not implied. Exposure to
absolute maximum rating conditions for extended periods may affect device reliability.
VCCto GND (MAX9370/MAX9371).......................-0.3V to +5.5V
VCCto GND (MAX9372)........................................-0.3V to +4.0V
D_ to GND..................................................-0.3V to (VCC+ 0.3V)
Q_, Q_to GND...........................................-0.3V to (VCC+ 0.3V)
Continuous Output Current ................................................50mA
Surge Output Current........................................................100mA
Junction-to-Ambient Thermal Resistance in Still Air
8-Pin SOT23..............................................................+112°C/W
8-Pin µMAX…............................................................+221°C/W
8-Pin SO....................................................................+170°C/W
Junction-to-Ambient Thermal Resistance with
500LFPM Airflow
8-Pin SOT23................................................................+78°C/W
8-Pin µMAX…............................................................+155°C/W
8-Pin SO......................................................................+99°C/W
Junction-to-Case Thermal Resistance
8-Pin SOT23................................................................+80°C/W
8-Pin µMAX…..............................................................+39°C/W
8-Pin SO......................................................................+40°C/W
Continuous Power Dissipation (TA= +70°C)
8-Pin SO (derate 5.9mW/°C above +70°C)...................470mW
8-Pin µMAX (derate 4.5mW/°C above +70°C)..............362mW
8-Pin SOT23 (derate 8.9mW/°C above +70°C).............714mW
Operating Temperature Range...........................-40°C to +85°C
Junction Temperature .....................................................+150°C
Storage Temperature Range.............................-60°C to +150°C
Soldering Temperature (10s)...........................................+300°C
DC ELECTRICAL CHARACTERISTICS(VCC= 3.0V to 5.25V for MAX9370/MAX9371, VCC= 3.0V to 3.6V for MAX9372, outputs terminated with 50Ω±1% to VCC- 2.0V.
Typical values are at VCC= 3.3V, VIH = 2.4V, VIL= 0.4V, unless otherwise noted.) (Notes 1, 2, 3)
-40°C+25°C+85°CPARAMETERSYMBOLCONDITIONSMINTYPMAXMINTYPMAXMINTYPMAXUNITS
LVTTL INPUTS (D_)Input High
VoltageVIH2.02.02.0V
Input Low
VoltageVIL0.80.80.8V
Input Low
CurrentIILVD = 0.5V-100-100-100µA
VD = 2.7V-50+10-50+10-50+10
VD = VCC,
MAX9370/
MAX9371
130130130Input High
CurrentIIH
VD = VCC,
MAX9372202020
Input Clamp
VoltageIIL or IIH = 18mA-1.2-1.2-1.2V
LVPECL/PECL OUTPUTS (Q_, Q_)MAX9370VCC -
VCC -
VCC -
VCC -
VCC -
VCC -
0.895Output High
VoltageVOHMAX9371/
MAX9372
VCC -
VCC -
VCC -
VCC -
VCC -
VCC -
MAX9370VCC -
VCC -
VCC -
VCC -
VCC -
VCC -
1.62Output Low
VoltageVOLMAX9371/
MAX9372
VCC -
VCC -
VCC -
VCC -
VCC -
VCC -
1.695
MAX9370/MAX9371/MAX9372VTTL/TTL-to-Differential LVPECL/PECLranslators
DC ELECTRICAL CHARACTERISTICS (continued)(VCC= 3.0V to 5.25V for MAX9370/MAX9371, VCC= 3.0V to 3.6V for MAX9372, outputs terminated with 50Ω±1% to VCC- 2.0V.
Typical values are at VCC= 3.3V, VIH = 2.4V, VIL= 0.4V, unless otherwise noted.) (Notes 1, 2, 3)
-40°C+25°C+85°CPA R A M ET ER SYMBOLCONDITIONSMINTYPMAXMINTYPMAXMINTYPMAXUNITSDifferential
Output Swing
(VOH - VOL)
600600600mV
SUPPLY CURRENTMAX9370/
MAX9372182820282228Power-Supply
Current
(Note 4)
ICC
MAX93719.51610.51611.516
AC ELECTRICAL CHARACTERISTICS(VCC= 3.0V to 5.25V for MAX9370/MAX9371, VCC= 3.0V to 3.6V for MAX9372, outputs terminated with 50Ω±1% to VCC- 2.0V, input
frequency ≤1.0GHz, input transition time = 125ps (20% to 80%), VIH= 2.0V, VIL= 0.8V. Typical values are at VCC= 3.3V, VIH=
2.4V, VIL= 0.4V, unless otherwise noted.) (Note 5)
-40°C+25°C+85°CPARAMETERSYMBOLCONDITIONSMINTYPMAXMINTYPMAXMINTYPMAXUNITSMaximum
Toggle
Frequency
fMAXVOH - VOL ≥
600mV1.01.51.01.51.01.5GHz
Input-to-
Output
Propagation
Delay
tPLH,
tPHLFigure 1200270400200270400200270400ps
Output-to-
Output SkewtSKQQ
MAX9370/
MAX9372
(Note 6)50750750ps
Output Rise/
Fall TimetR, tFFigure 1802508025080250ps
Added
Deterministic
Jitter
tDJ
1Gbps 223 - 1
PRBS pattern
(Note 7)6040604060ps(P-P)
Added
Random JittertRJ1GHz clock
(Note 7)0.230.80.230.80.230.8ps(RMS)
Note 1:Measurements are made with the device in thermal equilibrium.
Note 2:Current into a pin is defined as positive. Current out of a pin is defined as negative.
Note 3:DC parameters are production tested at TA= +25°C. DC limits are guaranteed by design and characterization over the full
operating temperature range.
Note 4:All pins are open except VCCand GND.
Note 5:Guaranteed by design and characterization. Limits are set to ±6 sigma.
Note 6:Measured between outputs of the same part at the signal crossing points under identical conditions for a same-edge transition.
Note 7:Device jitter added to the input signal.
MAX9370/MAX9371/MAX9372
LVTTL/TTL-to-Differential LVPECL/PECL
Translators
Typical Operating Characteristics(MAX9371, VCC= 3.3V, VIH= 2.4V, VIL= 0.4V, outputs terminated with 50Ωto VCC- 2V, input transition time = 125ps (20% to 80%),= +25°C, unless otherwise noted.)
SUPPLY CURRENT vs. TEMPERATUREMAX9370 toc01
TEMPERATURE (°C)
SUPPLY CURRENT (mA)3510-15
ALL INPUTS AND OUTPUTS ARE OPEN
MAX9370/MAX9372
MAX9371
DIFFERENTIAL OUTPUT VOLTAGE
(VOH - VOL) vs. FREQUENCYMAX9370 toc02
FREQUENCY (GHz)
DIFFERENTIAL OUTPUT VOLTAGE (mV)
TRANSITION TIME vs. TEMPERATURE
MAX9370 toc03
TEMPERATURE (°C)
TRANSITION TIME (ps)3510-15
f = 100MHz
FALLING EDGE
RISING EDGE
PROPAGATION DELAY vs. TEMPERATUREMAX9370 toc04
TEMPERATURE (°C)
PROPAGATION DELAY (ps)3510-15
-4085
Detailed DescriptionThe MAX9370/MAX9371/MAX9372 LVTTL/TTL-to-differ-
ential LVPECL/PECL translators are designed for high-
speed communication signal and clock driver
applications. The MAX9370/MAX9372 are dual LVTTL-
to-LVPECL/PECL translators that operate in excess of
1GHz. The MAX9371 is a single translator. The
MAX9370/MAX9371 operate over a wide 3.0V to 5.25V
supply range, allowing high-performance clock or data
distribution in systems with a nominal 3.3V or 5.0V sup-
ply. The MAX9372 is optimized for 3.0V to 3.6V opera-
tion. These devices feature low 270ps propagation
delay and 40ps peak-to-peak deterministic jitter.
Inputs and OutputsThe MAX9370/MAX9371/MAX9372 inputs accept stan-
dard LVTTL/TTL levels. The input has pullup circuitry that
drives the outputs to a differential high if the inputs are
open. The outputs are differential LVPECL/PECL levels.
Applications Information
Output TerminationTerminate outputs with 50Ωto VCC- 2V or use an equiv-
alent Thevenin termination. Use the same terminate on
each output for the lowest output-to-output skew. When a
single-ended signal is taken from a differential output,
terminate both outputs. For example, if Q is used as a
single-ended output, terminate both Q and Q.
MAX9370/MAX9371/MAX9372VTTL/TTL-to-Differential LVPECL/PECLranslators
Pin Description for the MAX9370/MAX9372
PIN
µMAXSOT23NAMEFUNCTION8Q0Noninverting Differential LVPECL/PECL Output 0. Typically terminate with 50Ω resistor to VCC - 2V.Q0Inverting Differential LVPECL/PECL Output 0. Typically terminate with 50Ω resistor to VCC - 2V.6Q1Noninverting Differential LVPECL/PECL Output 1. Typically terminate with 50Ω resistor to VCC - 2V.Q1Inverting Differential LVPECL/PECL Output 1. Typically terminate with 50Ω resistor to VCC - 2V.GNDGround. Provide a low-impedance connection to ground plane.4D1LVTTL/TTL Input 1. LVTTL/TTL input for translator corresponding to output Q1 and Q1.3D0LVTTL/TTL Input 0. LVTTL/TTL input for translator corresponding to output Q0 and Q0.VCCPositive Supply Voltage. Bypass VCC to GND with 0.1µF and 0.01µF ceramic capacitors. Place the
capacitors as close to the device as possible with the smaller value capacitor closest to the device.
Pin Description for the MAX9371
PIN
µMAXSOT23
NAMEFUNCTION1, 4, 64, 5, 8N.C.No Connection. No internal connection.7QNoninverting Differential LVPECL/PECL Output. Typically terminate with 50Ω resistor to VCC - 2V.QInverting Differential LVPECL/PECL Output. Typically terminate with 50Ω resistor to VCC - 2V.GNDGround. Provide a low-impedance connection to ground plane.3DLVTTL/TTL InputVCCPositive Supply Voltage. Bypass VCC to GND with 0.1µF and 0.01µF ceramic capacitors. Place the
capacitors as close to the device as possible with the smaller value capacitor closest to the device.
MAX9370/MAX9371/MAX9372Ensure that the output currents do not exceed the con-
tinuous safe output current limit or surge output current
limit as specified in the Absolute Maximum Ratings
table. Under all operating conditions, the device’s total
thermal limits should be observed.
Supply BypassingBypass VCCto GND with high-frequency surface-mount
ceramic 0.1µF and 0.01µF capacitors in parallel and as
close to the device as possible, with the 0.01µF capaci-
tor closest to the device. Use multiple parallel vias to
minimize parasitic inductance.
PC Board TracesInput and output trace characteristics affect the perfor-
mance of the MAX9370/MAX9371/MAX9372. Connect
each differential output to a 50Ωcharacteristic impedance
trace. Minimize the number of vias to prevent impedance
discontinuities. Reduce reflections by maintaining the 50Ω
characteristic impedance through connectors and across
cables. Reduce skew within a differential pair by match-
ing the electrical length of the traces.
Chip InformationTRANSISTOR COUNT: 358
PROCESS: Bipolar
LVTTL/TTL-to-Differential LVPECL/PECL
Translators0V (DIFFERENTIAL)
20%
80%
20%
80%tF
Q_ - Q_
VIH
VIL
50%
tPLH
50%
VOH
VOL
VOH - VOL
VOH - VOL
VOH - VOL
tPHL
Figure 1. Input-to-Output Propagation Delay and Transition Timing Diagram
