MAX3680A Ver la hoja de datos (PDF) - Maxim Integrated
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MAX3680A Datasheet PDF : 8 Pages
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19-1210; Rev 3; 3/07
EVAALVUAAILTAIOBNLEKIT
+3.3V, 622Mbps, SDH/SONET
1:8 Deserializer with TTL Outputs
_________________General Description
The MAX3680/MAX3680A deserializer is ideal for con-
verting 622Mbps serial data to 8-bit-wide, 77Mbps par-
allel data in ATM and SDH/SONET applications.
Operating from a single +3.3V supply, this device
accepts PECL serial clock and data inputs, and deliv-
ers TTL clock and data outputs. The MAX3680 also pro-
vides a TTL synchronization input that enables data
realignment and reframing.
The MAX3680/MAX3680A is available in the extended-
industrial temperature range (-40°C to +85°C), in a 28-
pin SSOP package.
__________________________Applications
______________________________Features
♦ Single +3.3V Supply
♦ 622Mbps Serial to 77Mbps Parallel Conversion
♦ 165mW Power
♦ Synchronization Input for Data Realignment and
Reframing (MAX3680)
♦ Differential 3.3V PECL Clock and Data Inputs
♦ TTL Data Outputs
________________Ordering Information
622Mbps SDH/SONET Transmission Systems
622Mbps ATM/SONET Access Nodes
Add/Drop Multiplexers
Digital Cross-Connects
Pin Configuration appears at end of data sheet.
PART
TEMP RANGE
MAX3680EAI
MAX3680EAI+
MAX3680AEAI
-40°C to +85°C
-40°C to +85°C
-40°C to +85°C
+Denotes lead-free package.
PIN-PACKAGE
28 SSOP
28 SSOP
28 SSOP
___________________________________________________________________Typical Operating Circuit
VCC = +3.3V
VCC = +3.3V
VCC = +3.3V
130Ω
130Ω
VCC
PD7
MAX3680/
MAX3680A PD6
PHOTODIODE
PREAMP
MAX3664
MAX3675
100Ω LIMITING
AMP
DATA
AND
CLOCK
RECOVERY
SD+
SD-
82Ω
82Ω
VCC = +3.3V
130Ω
82Ω
130Ω
SCLK+
SCLK-
82Ω
GND
THIS SYMBOL REPRESENTS A TRANSMISSION LINE OF CHARACTERISTIC IMPEDANCE Z0 = 50Ω.
PD5
PD4
PD3
PD2
PD1
PD0
PCLK
SYNC
OVERHEAD
TERMINATION
________________________________________________________________ Maxim Integrated Products 1
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.
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