PCT2303N DATA SHEET
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FEATURES
FUNCTIONAL DESCRIPTION
Complete DAA includes:
The PCT2303N is an Integrated Direct Access
Arrangement (DAA) chipset that provides a digital, low-
cost, solid-state interface to a telephone line. The
PCT2303N chipset is available in two 16-pin small
outline packages (AC’97 interface on PCT303A and
phone-line interface on PCT303L). The chipset
eliminates the need for an AFE, an isolation transformer,
relays, opto-isolators, and 2- to 4-wire hybrid. The
PCT2303N chipset dramatically reduces the number of
discrete components and cost required to achieve
compliance with FCC Part 68. The PCT303A complies
with AC’97/MC’97 Interface specification Rev. 2.1.
• AC’97 2.1 compliant
• International line interface
• Compliant with FCC Part 68
• 86 dB dynamic range TX/RX paths
• 3.3 to 5 V power supply
• Integrated ring detector
• 2000 V isolation
• Low profile SOIC packages
• Integrated analog front end (AFE)
• Low-power standby mode
• Support for caller ID
APPLICATIONS
• Audio/Modem Riser Card (AMR)
• Mobile Daughter Card (MDC)
• Mini PCI
PCT2303N Chip Set
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FUNCTIONAL BLOCK DIAGRAM
XOUT
Clock
Out
TX
MCLK/XIN
In
RX
Hybrid
HYBD
RESET
AC’97
Digital
Interface
BIT_CLK
SYNC
SDATA_IN
VREG
DCT
REXT
IGND
Isolation
Interface
Isolation
Interface
DC
Termination
SDATA_OUT
ID0
ID1
Ring Detect
Off-Hook
RNG1
RNG2
QB
Control
Interface
GPIOA
GPIOB
QE
PCT303A
PCT303L
PC-TEL, Inc.
2
2303N0DOCDAT10A-0899
ETC [ ETC ]
