
Piranha
Powerline Networking Chipset
The
Piranha
chipset consists of the CS1100 and the
AD9875. The CS1100 is a single-chip HomePlug 1.0
compliant MAC/PHY for use in home powerline
networking products. The CS1100 enables Ethernet-
class networking over existing electrical wiring with
full quality-of-service support and privacy ensured
through encryption. The AD9875 HomePlug Mixed-
Signal Front End is a low-power, low-cost converter for
powerline communications. Target applications for the
Piranha
chipset include PC network adapters,
residential gateways including set-top boxes, and a wide
range of entertainment and communication devices.
Design for Manufacture
HomePlug 1.0 MAC/PHY
rate adaptive to 14 Mbps
0.18 micron CMOS process
small footprint 100 pin LQFP
integrated PLL
low power 1.8V core
Easy Product Integration
emulates Ethernet PHY
flexible host interface: MII or 8-bit
Peripheral
3.3 V I/Os (5V tolerant host I/F)
glueless interface to highly integrated
mixed-signal front end
direct support for link status LEDs
Flexible Processor-Based MAC
supports multiple outstanding packets
during segmentation and reassembly
firmware is field-upgradeable and fully
configurable from host (serial EEPROM
not required)
testability support – loopback at host
interface, local and remote powerline
nodes
optional serial EEPROM - programmable
in system
JTAG Boundary scan
Mixed-Signal Front End
TX Path
- 10 bit D/A, 100 MSPS
- 2x oversampling digital low-pass filter
simplifies reconstruction filter
RX path
- 10 bit A/D, 50 MSPS
- -6 dB to 30 dB programmable gain
amplifier