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PM7830
BRICTM Baseband Radio Interface Controller
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Features
PRODUCT OVERVIEW
The PM7830 Baseband to Radio Interface Controller (BRICTM) is a fullfeatured
6-port termination device that fully supports the CPRI specification
for wireless base station interconnection. The BRIC provides
integrated rate-adaptive SERDES links along with CPRI framing,
mapping, switching, and combining functions. When used in conjunction with the 2-port PM7832 BRIC 2,
the BRIC and BRIC 2
can be used to flexibly create scalable CPRI-compliant distributed architectures. PRODUCT HIGHLIGHTS
- Operates in all of the following Baseband-to-RF interconnect
topologies:
- Local interconnect using a central combiner/distributor topology.
- Local interconnect using a full mesh topology.
- Remote interconnect using a point-to-point (P2P) star topology.
- Remote interconnect using a tree and branch topology.
- Remote interconnect using a chain topology.
- Remote interconnect using a ring topology.
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- Supports up to 6 serial channels running independently at CPRI line
rates from 614.4 Mbit/s to 2457.6 Mbit/s with 8B/10B-encoded
data.
- Supports up to 6 parallel Radio Bus Interfaces (RBIs) for output of
user data.
- Supports CPRI start-up sequence and link-rate auto-negotiation for
both REC and RE operating modes.
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- Supports traffic switching at the CPRI Antenna Carrier (AxC) level.
- Supports IQ summing.
- Supports multiplexing and termination of control and
synchronization sub-channels:
- Up to 6 Ethernet Fast C&M channels.
- Up to 6 HDLC Slow C&M channels.
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- Measures round-trip delay on each CPRI link with an accuracy of
±1 ns:
- Provides programmable delay insertion to meet CPRI delay
calibration requirements.
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- Supports serial line protection switching.
- Supports configuration, control, monitoring and test capability on a
per-channel basis.
- 16-bit microprocessor interface compatible with both Intel-like and
Freescale-like processors.
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INTERFACES
BENEFITS
- Provides all necessary functions for implementing CPRI-based
Chain, Ring, Point-to-Point architectures, and more.
- Hitless protection switching, IQ summing, AxC switching & multicast
functions enable single-device central switch/combiner
architectures.
- Software -compatible BRIC and BRIC 2 allow complete CPRI solutions
to be realized quickly and expanded as needed.
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- Enables application-specific performance monitoring & OAM
functions using in-band Ethernet/HDLC control & management subchannels.
- Applicable for UMTS, CDMA, WiMAX solutions and beyond.
- Industry's most complete and low-risk solution with reuse from
PM8358 QuadPHY 10GX SERDES and PM7831 BRIC FP CPRI Framer.
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Applications
Two of the many possible architectural implementations using the BRIC
and BRIC 2 are shown below:
- Central combiner-based CPRI architecture where the BRIC
is used as a termination and switching device for the interconnect of
BRIC 2 - based REC and RE CPRI endpoints.
- Chain-based CPRI architecture where the BRIC
is used to terminate one or more chains of remotely-located RE devices.
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PM7830 BRIC Baseband Radio Interface Controller Product Brief [119 KB] PMC-2051672 
Optimizing Pre-emphasis and Receive Equalization for Backplanes [493 kB] PMC-2021098