MAX3873AEGP ,Low-Power / Compact 2.5Gbps/2.7Gbps Clock-Recovery and Data-Retiming ICApplicationsSwitch Matrix BackplanesPIN- PKG PART TEM P R AN G EPACKAGE CODESDH/SONET Receivers an ..
MAX3873AEGP-T ,Low-Power, Compact 2.5Gbps/2.7Gbps Clock-Recovery and Data-Retiming ICELECTRICAL CHARACTERISTICS(V = 3.0V to 3.6V, T = -40°C to +85°C. Typical values are at 2.488Gbps, V ..
MAX3873AETP+ ,Low-Power, Compact 2.5Gbps/2.7Gbps Clock-Recovery and Data-Retiming ICFeaturesThe MAX3873A is a compact, low-power 2.488Gbps/♦ Fully Integrated Clock Recovery and Data2. ..
MAX3873AETP+T ,Low-Power, Compact 2.5Gbps/2.7Gbps Clock-Recovery and Data-Retiming ICapplications. The phase-locked loop (PLL)♦ Power Dissipation: 260mW with +3.3V Supplyrecovers a syn ..
MAX3875 ,2.5Gbps, Low-Power, +3.3V Clock Recovery and Data Retiming ICApplicationsPART TEMP. RANGE PIN-PACKAGESDH/SONET Receivers and RegeneratorsMAX3875EHJ -40°C to +85 ..
MAX3875AEHJ , 2.5Gbps, Low-Power, 3.3V Clock Recovery and Data Retiming IC
MAX7420CUA+ ,5th-Order, Lowpass, Switched-Capacitor FiltersMAX7418–MAX742519-1821; Rev 0; 11/005th-Order, Lowpass, Switched-Capacitor Filters
MAX7422EUA+T ,5th-Order, Lowpass, Switched-Capacitor FiltersFeaturesThe MAX7418–MAX7425 5th-order, low-pass, switched-♦ 5th-Order, Lowpass Filterscapacitor fil ..
MAX7423EUA ,5th-Order, Lowpass, Switched-Capacitor FiltersApplications MAX7418EUA -40°C to +85°C 8 µMAXMAX7419CUA0°C to +70°C 8 µMAXADC Anti-Aliasing CT2 Bas ..
MAX7424EUA ,5th-Order, Lowpass, Switched-Capacitor FiltersELECTRICAL CHARACTERISTICS—MAX7418–MAX7421(V = +5V, filter output measured at OUT, 10kΩ || 50pF loa ..
MAX7424EUA+ ,5th-Order, Lowpass, Switched-Capacitor FiltersELECTRICAL CHARACTERISTICS—MAX7418–MAX7421(V = +5V, filter output measured at OUT, 10kΩ || 50pF loa ..
MAX7425CUA ,5th-Order, Lowpass, Switched-Capacitor Filtersapplications. They feature a shutdown mode Clock-Turnable Corner Frequency (1Hz to 45kHz)that red ..
MAX3873AEGP
Low-Power / Compact 2.5Gbps/2.7Gbps Clock-Recovery and Data-Retiming IC
General DescriptionThe MAX3873A is a compact, low-power 2.488Gbps/
2.67Gbps clock-recovery and data-retiming IC for
SDH/SONET applications. The phase-locked loop (PLL)
recovers a synchronous clock signal from the serial
NRZ data input. The input data is then retimed by this
recovered clock, providing a clean data output. The
MAX3873A meets all SDH/SONET jitter specifications,
does not require an external reference clock to aid in
frequency acquisition, and provides excellent tolerance
to both deterministic and sinusoidal jitter. The
MAX3873A provides a PLL loss-of-lock (LOL) output to
indicate whether the CDR is in lock. The recovered data
and clock outputs are CML with on-chip 50Ωback termi-
nations on each line. The clock output can be powered
down if not used.
The MAX3873A is implemented in Maxim’s second-
generation SiGe process and consumes only 260mW at
3.3V supply (output clock disabled, low output swing). The
device is available in a 4mm x 4mm 20-pin QFN
exposed-pad package and operates from -40°C to +85°C.
ApplicationsSwitch Matrix Backplanes
SDH/SONET Receivers and Regenerators
Add/Drop Multiplexers
Digital Cross-Connects
SDH/SONET Test Equipment
DWDM Transmission Systems
FeaturesFully Integrated Clock Recovery and Data
RetimingPower Dissipation: 260mW with +3.3V SupplyClock Jitter Generation: 5mUIRMSExceeds ANSI, ITU, and Bellcore SDH/SONET
Jitter SpecificationsDifferential Input Range: 50mVP-Pto 1.6VP-PSingle +3.3V Power SupplyPLL Fast Track (FASTRACK) Mode AvailableClock Output Can Be DisabledInput Data Rate: 2.488Gbps or 2.67GbpsSelectable Output AmplitudeTolerates 2000 Consecutive Identical DigitsLoss-of-Lock IndicatorDifferential CML Data and Clock Outputs Operating Temperature Range: -40°C to +85°C
MAX3873A
Low-Power, Compact 2.5Gbps/2.7Gbps
Clock-Recovery and Data-Retiming IC19-2577; Rev 1; 5/03
Ordering Information
Typical Application Circuit appears at end of data sheet.
Pin Configuration
MAX3873A
Low-Power, Compact 2.5Gbps or 2.7Gbps
Clock-Recovery and Data-Retiming IC
ABSOLUTE MAXIMUM RATINGS
DC ELECTRICAL CHARACTERISTICS(VCC= 3.0V to 3.6V, TA= -40°C to +85°C. Typical values are at 2.488Gbps, VCC= 3.3V, TA= +25°C, unless otherwise noted.) (Note 1)
Stresses 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.
Supply Voltage, VCC..............................................-0.5V to +5.0V
Voltage at SDI±..............................(VCC- 1.0V) to (VCC+ 0.5V)
CML Output Current at SDO±, SCLKO±............................22mA
Voltage at LOL, FASTRACK, FIL±, SCLKEN
MODE, RATESET...................................-0.5V to (VCC+ 0.5V)
Continuous Power Dissipation (TA= +85°C)
20-Lead QFN (derate 20.0mW/°C above +85°C).....1300mW
Operating Temperature Range...........................-40°C to +85°C
Storage Temperature Range.............................-50°C to +150°C
Processing Temperature..................................................+400°C
Lead Temperature (soldering, 10s).................................+300°C
MAX3873A
Low-Power, Compact 2.5Gbps or 2.7Gbps
Clock-Recovery and Data-Retiming IC
AC ELECTRICAL CHARACTERISTICS(VCC= 3.0V to 3.6V, CF= 0.022µF, TA= -40°C to +85°C. Typical values are at VCC= 3.3V, 2.488Gbps, TA= +25°C, unless otherwise
MAX3873A
Low-Power, Compact 2.5Gbps or 2.7Gbps
Clock-Recovery and Data-Retiming ICFigure 1. Definition of Input Voltage Swing
Figure 2. Definition of Clock-to-Q Delay
Figure 4. Definition of LOLAssert Time and Frequency Acquisition Time
Figure 3. Definition of Phase Acquisition Time
AC ELECTRICAL CHARACTERISTICS (continued)(VCC= 3.0V to 3.6V, CF= 0.022µF, TA= -40°C to +85°C. Typical values are at VCC= 3.3V, 2.488Gbps, TA= +25°C, unless otherwise
noted.) (Note 4)
Note 1:At TA= -40°C, DC characteristics are guaranteed by design and characterization.
Note 2:CML outputs open.
Note 3:RL= 50Ωto VCC.
Note 4:AC characteristics are guaranteed by design and characterization.
Note 5:Relative to the falling edge of SCLKO+. See Figure 2.
Note 6:Measured with 223- 1 PRBS.
Note 7:Jitter BW = 12kHz to 20MHz.
Note 8:RATESET = low.
Note 9:RATESET = high.
MAX3873A
Low-Power, Compact 2.5Gbps or 2.7Gbps
Clock-Recovery and Data-Retiming IC
RECOVERED CLOCK AND DATA
(2.488Gbps, 223 - 1 PATTERN,
VIN = 50mVP-P)MAX3873A toc01
125mV/div
100ps/div
RECOVERED CLOCK AND DATA
(2.67Gbps, 223 - 1 PATTERN,
VIN = 50mVP-P)MAX3873A toc02
125mV/div
100ps/div
RECOVERED CLOCK JITTER
(2.488Gbps)MAX3873A toc03
10ps/div
0.1100100010,000
JITTER TOLERANCE
(2.488Gbps, 223 - 1 PATTERN,
VIN = 50mVP-P)MAX3873A toc04
JITTER FREQUENCY (kHz)
INPUT JITTER (UIp-p)
SUPPLY CURRENT vs. TEMPERATURE
(SCLKO DISABLED)
MAX3873A
toc06
TEMPERATURE (°C)
SUPPLY CURRENT (mA)
SUPPLY CURRENT vs. TEMPERATURE
(SCLKO ENABLED)
MAX3873A
toc07
TEMPERATURE (°C)
SUPPLY CURRENT (mA)
Typical Operating Characteristics(TA = +25°C, unless otherwise noted.)
MAX3873A
Low-Power, Compact 2.5Gbps or 2.7Gbps
Clock-Recovery and Data-Retiming IC
Typical Operating Characteristics (continued)(TA = +25°C, unless otherwise noted.)
