Cirrus Logic CS4299 User Manual
Cs4299, Soundfusion™ audio codec ‘97, Crystalclear

Preliminary Product Information
This document contains information for a new product.
Cirrus Logic reserves the right to modify this product without notice.
1
Copyright
Cirrus Logic, Inc. 2006
(All Rights Reserved)
P.O. Box 17847, Austin, Texas 78760
(512) 445 7222 FAX: (512) 445 7581
http://www.cirrus.com
MAR ‘06
DS319PP
6
CS4299
Features
l
AC ’97 2.1 Compatible
l
Industry Leading Mixed Signal Technology
l
20-bit Stereo Digital-to-Analog Converters
l
18-bit Stereo Analog-to-Digital Converters
l
Sample Rate Converters
l
Four Analog Line-level Stereo Inputs for
LINE_IN, CD, VIDEO, and AUX
l
Two Analog Line-level Mono Inputs for
Modem and Internal PC Beep
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Dual Stereo Line-level Outputs for
LINE_OUT and ALT_LINE_OUT
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Dual Microphone Inputs
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High Quality Pseudo-Differential CD Input
l
Extensive Power Management Support
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Meets or Exceeds the Microsoft
PC 99
Audio Performance Requirements
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S/PDIF Digital Audio Output
l
CrystalClear
3D Stereo Enhancement
Description
The CS4299 is an AC ’97 2.1 compatible stereo audio
codec designed for PC multimedia systems. Using the
industry leading CrystalClear
delta-sigma and mixed
signal technology, the CS4299 enables the design of
PC 99-compliant desktop, portable, and entertainment
PCs.
Coupling the CS4299 with a PCI audio accelerator or
core logic supporting the AC ’97 interface, implements a
cost effective, superior quality, audio solution. The
CS4299 surpasses PC 99 and AC ’97 2.1 audio quality
standards.
ORDERING INFO
CS4299-KQZ lead-free
48-pin LQFP 9x9x1.4 mm
CS4299-JQZ lead-free 48-pin LQFP 9x9x1.4 mm
AC’97
REGISTERS
LINE
CD
AUX
VIDEO
MIC1
MIC2
PHONE
PC_BEEP
LINE_OUT
ALT_LINE_OUT
MONO_OUT
ANALOG INPUT MUX
AND OUTPUT MIXER
AC-LINK AND AC’97
REGISTERS
PCM_DATA
GAIN / MUTE CONTROLS
INPUT
MUX
Σ
OUTPUT
MIXER
MIXER / MUX SELECTS
AC-
LINK
PWR
MGT
SYNC
BIT_CLK
SDATA_OUT
SDATA_IN
RESET#
PCM_DATA
DAC
20 bits
ADC
18 bits
SRC
SRC
S/PDIF
CrystalClear
SoundFusion
™
Audio Codec ’97
Copyright
© Cirrus Logic, Inc. 2006
(All Rights Reserved)
Preliminary Product Information
This document contains information for a new product.
Cirrus Logic reserves the right to modify this product without notice.
http://www.cirrus.com
CrystalClear
®
SoundFusion™ Audio Codec ‘97
CS4299
March '06
DS319PP6
Document Outline
- Features
- Description
- 1. Characteristics and specifications
- Analog Characteristics
- Mixer Characteristics
- Absolute Maximum Ratings
- Recommended Operating Conditions
- Digital Characteristics
- AC ’97 Serial Port Timing
- Figure 1. Power Up Timing
- Figure 2. Codec Ready from Startup or Fault Condition
- Figure 3. Clocks
- Figure 4. Data Setup and Hold
- Figure 5. PR4 Powerdown and Warm Reset
- Figure 6. Test Mode
- 2. General Description
- 3. ACLink Frame Definition
- Figure 9. AC-link Input and Output Framing
- 3.1 AC-Link Serial Data Output Frame
- 3.2 AC-Link Audio Input Frame
- 3.3 AC-Link Protocol Violation - Loss of SYNC
- 4. Register Interface
- Table 1. Mixer Registers
- Table 2. Analog Mixer Output Attenuation
- Table 3. Microphone Input Gain Values
- Table 4. Analog Mixer Input Gain Values
- Table 5. Stereo Volume Register Index
- Table 6. Input Mux Selection
- Table 7. Standard Sample Rates
- Table 8. Slot Mapping
- Table 9. Device ID with Corresponding Part Number
- Table 10. Revision Values
- 5. Power Management
- 6. Analog Hardware Description
- 6.1 Analog Inputs
- 6.1.1 Line-Level Inputs
- 6.1.2 CD Input
- Figure 10. Line Input (Replicate for Video and Aux)
- Figure 11. Differential 2 VRMS CD Input
- Figure 12. Differential 1 VRMS CD Input
- 6.1.3 Microphone Inputs
- 6.1.4 PC Beep Input
- 6.1.5 Phone Input
- 6.2 Analog Outputs
- 6.3 Miscellaneous Analog Signals
- 6.4 Power Supplies
- 6.5 Reference Design
- 6.1 Analog Inputs
- 7. Sony/Philips Digital Interface (S/PDIF)
- Figure 20. S/PDIF Output
- 8. Grounding and Layout
- 9. Pin Descriptions
- 10. Parameter and Term Definitions
- 11. Reference Design
- 12. References
- 13. Package dimensions