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Integrated Audio/Communications System Device Family with Host-
Processed (HSF) V.90/K56flex™ Modem and PCI Bus Interface
The Conexant RipTide™ LP Audio/Comm Device Family combines audio and
communications performance with built-in PCI Bus and peripheral interfaces into
two hardware devices and supporting PC software (see Figure 1 and Table 1). The
devices are the Audio Communications Controller and the Audio Modem Codec.
Audio system operation is supported by the Conexant WaveStream™ 64 (WS64) or
Mega WaveStream™ software wavetable synthesis.
Conexant V.90/K56flex™ modem operation is supported by host-processed (HSF or
SoftK56) MMX-based signal processing.
The Audio Communications Controller (ACC or Controller) integrates standard PCI
2
Bus, MPU-401, I S, analog/digital joystick, and Audio Modem Codec interfaces into
a single 128-pin TQFP (RACC011).
The Audio Modem Codec (AMC or Codec) combines two coder/decoder functions,
compliant with Intel Audio Codec ’97 2.1 extensions for combo audio modem codec
(AMC’97), into a 64-pin TQFP which supports one telephone line (RAMC021).
•
Microsoft PC 98 and PC 99 compliant
•
AC ’97 Codec V2.1 compliant (AMC’97)
•
Supports applications for Windows 98 (WDM),
Windows 95, Windows NT 4.0, Windows 2000, Sound
Blaster Pro, Adlib/OPL3, MS DOS, DOS box
•
V.90/K56flex Modem
•
Patented PCI Sound Blaster emulation
•
Hardware FM synthesis
•
WaveStream 64-voice software wavetable synthesis
•
Mega WaveStream software wavetable synthesis
•
Soft DVD Support
•
Hardware 3D spatialization and bass boost
•
MMX-accelerated HRTF-3D (A3D)
•
High quality sample rate converter (1 Hz resolution)
•
PCI Bus master interface with Scatter/Gather DMA
•
PME# signal support ACPI, PCI-PM, OnNow®
•
Supports Caller ID storage in D3cold with Vaux
•
Advanced Power Management
•
Hardware digital mixer and volume control
•
DirectSound™ acceleration
•
Analog/digital joystick interface
2
•
One sample rate tracking I S input port
•
MIDI/MPU-401 Interface
•
Packaging
−
ACC: 128-pin TQFP
−
AMC: 64-pin TQFP
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•
PCI cards
•
Laptop and notebook computers
•
Embedded PC motherboards
AC-LINK
PCI BUS
AC '97
Audio
Communications
Controller (ACC)
[RACC011:
128-Pin TQFP]
AMC '97
Audio Modem
Codec (AMC)
[RAMC021:
64-Pin TQFP]
Telephone Line/
Telephone
Handset
Interface
(DAA)
TELEPHONE
TELEPHONE
HANDSET
LINE (L,R), CD (L,R), AUX (L,R)
VIDEO AUDEO (L,R), MIC1, PC BEEP
LOUT (L,R), HP (L,R),
MONOOUT (L,R),
I
2
S
MIDI (IN AND OUT)
JOYSTICK (A AND B)
EEPROM
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RipTide™ LP Audio/Comm System Product Description
Ordering Information
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Information provided by Conexant Systems, Inc. is believed to be accurate and reliable. However, no responsibility is assumed by Conexant
for its use, nor any infringement of patents or other rights of third parties which may result from its use. No license is granted by implication or
otherwise under any patent rights of Conexant other than for circuitry embodied in Conexant products. Conexant reserves the right to change
circuitry at any time without notice. This document is subject to change without notice.
K56flex is a trademark of Conexant Systems, Inc. and Lucent Technologies.
Conexant, RipTide, WaveStream, and “What's Next in Communications Technologies” are trademarks of Conexant Systems, Inc.
A3D is a trademark of Aureal Semiconductor Inc.
ARM is a trademark of ARM Ltd.
Product names or services listed in this publication are for identification purposes only, and may be trademarks or registered trademarks of
their respective companies. All other marks mentioned herein are the property of their respective owners.
©1999, Conexant Systems, Inc.
All Rights Reserved
2
Conexant
Conexant Proprietary Information
1200
RipTide™ LP Audio/Comm System Product Description
Detailed Features
Modem Features
•
Data modem
−
V.90, K56flex, V.34 (33.6 kbps), V.32 bis, V.32, V.22 bis, V.22, V.23, and V.21; Bell 212A and 103
−
V.42 LAPM and MNP 2-4 error correction
−
V.42 bis and MNP 5 data compression
−
V.25 ter (Annex A) and EIA/TIA 602 command set
•
Fax modem
−
V.17, V.29, V.27 ter, and V.21 ch 2
−
EIA/TIA 578 Class 1 and T.31 Class 1.0 commands
•
Full-duplex speakerphone (FDSP)
−
Over PSTN
−
Switching to/from data and fax
−
Digital Speakerphone (speakerphone over Internet)
−
Microphone gain and muting
−
Speaker volume control and muting
−
Adaptive acoustic, line, and handset echo cancellation
−
Loop gain control, transmit and receive path AGC
−
Acoustic echo cancellation
•
Video Conferencing Support
−
V.80 synchronous access mode supports host-controlled communication protocols
−
H.324 interface support
•
V.8/V.8bis and AT commands (V.25 ter with Annex A)
•
Multiple country support
−
Call progress and blacklisting options
•
Data/Fax/Voice call discrimination
•
Caller ID and distinctive ring detect
•
Single profile stored in host
•
Voice, telephony, audio
−
TIA-695 command set
−
8-bit linear PCM, 8-bit
µ-Law/A-Law,
16-bit PCM record/playback
−
8 kHz sample rate
−
Handset, acoustic, line echo cancellation
−
Music on hold from host or any digital or analog input
−
TAM support with concurrent DTMF detect, ring detect and caller ID
•
Modem and audio paths concurrent across PCI Bus
•
System Compatibilities
−
Unimodem V compliant
1200
Conexant
Conexant Proprietary Information
3
RipTide™ LP Audio/Comm System Product Description
Controller Features
•
PCI Bus Interface
•
PCI Bus Power Management
−
ACPI Power Management Registers
−
PME# and APM support
•
Audio interfaces
−
MPU-401 MIDI interface
2
−
I S bus digital interface
−
Volume control inputs (up, down, mute)
−
External audio amplifier on/off control
•
Simultaneous sample rate conversion (SRC)
•
Up to 15 audio and modem sample data streams
•
Interpolation:1 kHz to 48 kHz in; 48 kHz out
•
Decimation: 48 kHz in; 48 kHz to 8 kHz out
•
Variable sample rate audio for record and playback supporting 8 kHz to 48 kHz with 1 Hz resolution
•
48 kHz Mixer
−
Twelve 36-bit inputs; one 18-bit output
•
Other interfaces
−
Analog/digital joystick game port interface
−
Programmable GPIO pins
−
Serial EEPROM interface
−
AC-link to Codec
•
128-pin TQFP
•
+3.3V operation with +5V tolerant inputs
Codec Features
•
Combined Audio/Modem Codec (AMC)
−
AC ’97 Codec V2.1 compliant (AMC ’97)
•
Advanced Power Management
•
Audio codec and interface
−
Stereo full-duplex codec with 18-bit resolution
−
Six audio analog input channels
Four stereo line-level inputs: Line_In, CD, Video, and AUX
Mono mic level input: Mic_1
Mono PC Beep input
−
Three audio analog output channels
Two stereo outputs: Line_Out and Headphone (Line Level)_Out
Mono output: Mono_Out
−
3D spatialization and bass boost
•
Modem codec and interface
−
Full-duplex codec with 16-bit resolution
−
1-line telephone line interface
−
Dedicated handset ADC/DAC
−
Dedicated microphone ADC
−
Caller ID decode and storage
•
GPIO lines
−
9 assigned GPIO lines
•
64-pin TQFP
•
+3.3V operation with +5V tolerant inputs and +5V operation
4
Conexant
Conexant Proprietary Information
1200
RipTide™ LP Audio/Comm System Product Description
General Description
System Overview
RipTide System Hardware Components
The RipTide system hardware components are:
•
Audio Communications Controller (ACC or Controller) device in a 128-pin TQFP.
•
Audio Modem Codec (AMC or Codec) device in a 64-pin TQFP.
Audio Communications Controller (ACC or Controller).
The Controller provides the processing core and interfaces for a
complete system featuring audio and communications (Figure 2. The Controller connects to the host PC via a PCI Bus
interface and implements 3 PCI logical functions: Audio, Modem and Joystick. The Controller conforms to the PCI Local Bus
Specification, Production Version, Revision 2.1 with a 32-bit PCI Local Bus interface and 33MHz PCI clock support.
Communication between the Controller and the Codec is via an AC ‘97 AC-link.
The Controller is packaged in a 128-pin TQFP (RACC011) and operates on +3.3V power with +5V tolerant inputs.
Audio Modem Codec (AMC or Codec).
The Codec combines two coder/decoder functions, compliant with Intel Audio Codec
’97 2.1 Extensions for combo audio modem codec (AMC’97), into a 64-pin TQFP which supports one telephone line
(RAMC021).
The Codec operates on +3.3V power with +5V tolerant inputs and +5V power.
RipTide System Software Components
The RipTide system software components are:
•
•
•
Audio system software that supports applications for Windows 98 (WDM), Windows 95, Windows NT 4.0, Windows
2000, Sound Blaster Pro, Adlib/OPL3, MS DOS, or DOS box
WaveStream 64-voice software wavetable synthesis or optional Mega WaveStream software wavetable synthesis
V.90/K56flex modem system software that provides modem controller functions with MMX-based modem signal
processing
RipTide PC System Requirements
The minimum PC system requirements for a RipTide System solution is:
•
•
•
•
Pentium 200 MMX or compatible
Windows 98, Windows 95, Windows NT4.0, or Windows 2000
32 MB RAM
50 MB hard disk space
System Advantages
The RipTide solution moves both audio and communications functions from the 8 MHz ISA bus to the higher performance 33
MHz PCI Bus, leading to measurable CPU loading advantages and enhanced system reliability. The PCI Bus provides much
improved I/O bus loading and power management capabilities as compared to the ISA bus.
The scaleable RipTide architecture is designed to support:
•
•
•
Motherboard (desktop or notebook)
Custom form factor module (notebook)
PCI add-in card
1200
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