MAX3680 Datasheet, PDF (1/8 Pages) Maxim Integrated Products – +3.3V, 622Mbps, SDH/SONET 1:8 Deserializer with TTL Outputs

19-1210; Rev 0; 3/97
EVAALVUAAILTAIOBNLEKIT
+3.3V, 622Mbps, SDH/SONET
1:8 Deserializer with TTL Outputs
_________________General Description
The MAX3680 deserializer is ideal for converting
622Mbps serial data to 8-bit-wide, 77Mbps parallel
data in ATM and SDH/SONET applications. Operating
from a single +3.3V supply, this device accepts PECL
serial-clock and data inputs, and delivers TTL clock
and data outputs. It also provides a TTL synchroniza-
tion input that enables data realignment and reframing.
The MAX3680 is available in the extended-industrial
temperature range (-40°C to +85°C), in a 28-pin SSOP
package.
__________________________Applications
622Mbps SDH/SONET Transmission Systems
622Mbps ATM/SONET Access Nodes
Add/Drop Multiplexers
Digital Cross Connects
______________________________Features
o Single +3.3V Supply
o 622Mbps Serial to 77Mbps Parallel Conversion
o 165mW Power
o Synchronization Input for Data Realignment and
Reframing
o Differential 3.3V PECL Clock and Data Inputs
o TTL Data Outputs and Synchronization Input
________________Ordering Information
PART
MAX3680EAI
TEMP. RANGE
-40°C to +85°C
PIN-PACKAGE
28 SSOP
Pin Configuration appears at end of data sheet.
___________________________________________________________________Typical Operating Circuit
V_CC = +3.3V
V_CC = +3.3V
V_CC = +3.3V
130Ω
130Ω
V_CC
PD7
MAX3680
PD6
PHOTODIODE
MAX3675
SD+
PD5
SD-
PD4
82Ω
82Ω
DATA
PREAMP
100Ω LIMITING
AMP
AND
CLOCK
RECOVERY
V_CC = +3.3V
PD3
MAX3664
PD2
130Ω
130Ω
SCLK+
SCLK-
82Ω
82Ω
GND
THIS SYMBOL REPRESENTS A TRANSMISSION LINE OF CHARACTERISTIC IMPEDANCE Z₀ = 50Ω.
PD1
PD0
PCLK
SYNC
OVERHEAD
TERMINATION
________________________________________________________________ Maxim Integrated Products 1
For free samples & the latest literature: http://www.maxim-ic.com, or phone [phone]