MAX3691 Maxim Integrated Products, MAX3691 Datasheet

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MAX3691

Manufacturer Part Number
MAX3691
Description
Manufacturer
Maxim Integrated Products
Datasheet

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The MAX3691 serializer is ideal for converting 4-bit-
wide, 155Mbps parallel data to 622Mbps serial data in
ATM and SDH/SONET applications. Operating from a
single +3.3V supply, this device accepts low-voltage
differential-signal (LVDS) clock and data inputs for
interfacing with high-speed digital circuitry, and deliv-
ers a 3.3V PECL serial-data output. A fully integrated
PLL synthesizes an internal 622Mbps serial clock from
a 155.52MHz reference clock.
The MAX3691 is available in the extended-industrial
temperature range (-40°C to +85°C), in a 32-pin TQFP
package.
________________________Applications
19-1207; Rev 1; 7/04
For pricing, delivery, and ordering information, please contact Maxim/Dallas Direct! at
1-888-629-4642, or visit Maxim’s website at www.maxim-ic.com.
___________________________________________________Typical Operating Circuit
_______________General Description
GENERATION
622Mbps SDH/SONET Transmission Systems
622Mbps ATM/SONET Access Nodes
Add/Drop Multiplexers
Digital Cross Connects
OVERHEAD
LVDS CRYSTAL REFERENCE
+3.3V, 622Mbps, SDH/SONET 4:1 Serializer
________________________________________________________________ Maxim Integrated Products
with Clock Synthesis and LVDS Inputs
THIS SYMBOL REPRESENTS A TRANSMISSION LINE
OF CHARACTERISTIC IMPEDANCE (Z
PCLKI- PCLKI+ RCLK-
PD0+
PD0-
PD1+
PD1-
PD2+
PD2-
PD3+
PD3-
PCLKO- PCLKO+
0.1µF
0.1µF
MAX3691
RCLK+
0
= 50Ω)
V
SD-
CC
V
= +3.3V
CC
SD+
GND
FIL+
FIL-
♦ Single +3.3V Supply
♦ 155Mbps Parallel to 622Mbps Serial Conversion
♦ 215mW Power
♦ LVDS Parallel Clock and Data Inputs
♦ Differential 3.3V PECL Serial-Data Output
____________________________Features
+Denotes lead-free package.
Pin Configuration appears at end of data sheet.
______________Ordering Information
MAX3691ECJ
MAX3691ECJ+
V
CC
PART
= +3.3V
130Ω
1.5k
100pF
82Ω
24.9k
130Ω
-40°C to +85°C
-40°C to +85°C
TEMP RANGE
82Ω
V
MAX3668
CC
= +3.3V
32 TQFP
32 TQFP
PIN-PACKAGE
1

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MAX3691 Summary of contents

Page 1

... Rev 1; 7/04 +3.3V, 622Mbps, SDH/SONET 4:1 Serializer with Clock Synthesis and LVDS Inputs _______________General Description The MAX3691 serializer is ideal for converting 4-bit- wide, 155Mbps parallel data to 622Mbps serial data in ATM and SDH/SONET applications. Operating from a single +3.3V supply, this device accepts low-voltage differential-signal (LVDS) clock and data inputs for interfacing with high-speed digital circuitry, and deliv- ers a 3 ...

Page 2

SDH/SONET 4:1 Serializer with Clock Synthesis and LVDS Inputs ABSOLUTE MAXIMUM RATINGS Terminal Voltage (with respect to GND) V .........................................................................-0. All Inputs.................................................-0. Output Current LVDS Outputs (PCLKO±)................................................10mA PECL Outputs (SD±).......................................................50mA Stresses beyond those ...

Page 3

SDH/SONET 4:1 Serializer with Clock Synthesis and LVDS Inputs AC ELECTRICAL CHARACTERISTICS (V = +3.0V to +3.6V, differential LVDS load = 100Ω ±1%, PECL loads = 50Ω ± noted. Typical values are ...

Page 4

SDH/SONET 4:1 Serializer with Clock Synthesis and LVDS Inputs ____________________________Typical Operating Characteristics (continued +3.0V to +3.6V, differential LVDS loads = 100Ω, unless otherwise noted.) CC PCLKO-to-PCLKI SKEW vs. TEMPERATURE -50 ...

Page 5

... SDH/SONET 4:1 Serializer with Clock Synthesis and LVDS Inputs _______________Detailed Description The MAX3691 serializer comprises a 4-bit parallel input register, a 4-bit shift register, control and timing logic, a PECL output buffer, LVDS input/output buffers, and a frequency-synthesizing PLL (consisting of a phase/ frequency detector, loop filter/amplifier, and voltage- controlled oscillator) ...

Page 6

... D3; PD2 = D2; PD1 = D1; PD0 = D0. Figure 2. Timing Diagram Low-Voltage Differential-Signal (LVDS) Inputs and Outputs The MAX3691 features LVDS inputs and outputs for interfacing with high-speed digital circuitry. The LVDS standard is based on the IEEE 1596.3 LVDS specifi- cation. This technology uses 250mV–400mV differen- ...

Page 7

... Layout Techniques For best performance, use good high-frequency layout techniques. Filter voltage supplies and keep ground connections short. Use multiple vias where possible. Also, use controlled-impedance transmission lines to interface with the MAX3691 clock and data inputs and outputs. +3.3V 130Ω MAX3691 ...

Page 8

... Maxim cannot assume responsibility for use of any circuitry other than circuitry entirely embodied in a Maxim product. No circuit patent licenses are implied. Maxim reserves the right to change the circuitry and specifications without notice at any time. 8 _____________________Maxim Integrated Products, 120 San Gabriel Drive, Sunnyvale, CA 94086 408-737-7600 © 2004 Maxim Integrated Products PACKAGE OUTLINE, 32/48L TQFP, 7x7x1.4mm PACKAGE OUTLINE, 32/48L TQFP, 7x7x1 ...

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