10 Gb/s
16-Bit MUX/CMU
MIXED SIGNAL INTEGRATED CIRCUIT PRODUCTS
MTC1207A, MTC1207B
Product Data Sheet
Applications
• Telecom transmission systems
• SONET OC-192 and SDH STM-64 equipment
• Forward Error Correction data rates supported
(10.664 Gb/s option)
Features
• 16 to 1 multiplexer (MUX)
• Reduced power consumption (2.5 W)
• Large output data amplitude
• Integrated Clock Multiplier Unit (CMU)
• Low Jitter VCO with external loop filter
• Jitter performance complies with SONET/SDH standards
Description
The MTC1207A and 1207B are reduced power 10 Gb/s 16 to 1 multiplexers (MUX) with an
integrated clock multiplier unit for use in SONET OC-192, SDH STM-64, and Forward Error
Correction (FEC) systems. The MTC1207A accepts 16 different data channels at 622 Mb/s and
combines them into a single 9.953 Gb/s serial data stream suitable for transmission over high speed
fiberoptic networks. The MTC1207B accepts differential data at 666.5 Mb/s and is optimized for use
in systems which employ FEC encoding at 10.664 Gb/s.
For each of the two devices, the minimum data output amplitude is 800 mVpp, allowing direct
connection to an external modulator driver such as the MTC5515. An on-chip Phase/Frequency
Detector (PFD) and precision Voltage Controlled Oscillator (VCO) are used in combination with an
external op-amp loop filter to convert the 622 or 666.5 MHz reference clock, supplied by the host
system, into a low jitter 9.953 or 10.664 GHz clock output. The 10 Gb/s data output is retimed with
respect to the high speed clock using an internal D flip flop (DFF).
All data and clock I/O are provided with on-chip 50 Ohm transmission line terminations to minimize
the external component count. The MTC1207 series devices are provided in a 128 pin quad flat
pack (QFP) and operate from -5.0 V and -3.5 V power supplies. The circuitry was designed for use
in equipment which is required to comply with Bellcore, ANSI, and ITU-T international standards for
SONET and SDH systems.
Data
Processor
D0
D15
REFCLK
Figure 1: Typical System Block Diagram
Modulator
Driver
(MTC5515)
10 Gb/s
Serial
Data
MTC1207A,
MTC1207B
Light
Source
External
Modulator
Fiberoptic
Link
Photo
Receiver
10 Gb/s
Serial
Data
CDR
DMUX
(MTC1224)
D0
D15
C16
Page 1
Data
Processor
