AD1980JST-REEL Datasheet, PDF (1/32 Pages) Analog Devices – AC 97 SoundMAX Codec

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FEATURES
AC ’97 2.3 COMPATIBLE FEATURES
6 DAC Channels for 5.1 Surround
S/PDIF Output
Integrated Stereo Headphone Amplifier
Variable Rate Audio
Double Rate Audio (f_S = 96 kHz)
Greater than 90 dB Dynamic Range
20-Bit PCM DACs
Line-Level Mono ”Phone” Input
High Quality CD Input
Selectable MIC Input with Preamp
AUX and Line_In Stereo Inputs
External Amplifier Power-Down Control
Power Management Modes
48-Lead LQFP Package
AC ’97 SoundMAX^® Codec
AD1980
ENHANCED FEATURES
Integrated Parametric Equalizer
Stereo MIC Preamp Support
Integrated PLL for System Clocking
Variable Sample Rate 7 kHz to 96 kHz
Jack Sense (Auto Topology Switching)
Software Controlled VREF_OUT for MIC Bias
Software Enabled Outputs for Jack Sharing
Auto Down-Mix and Channel Spreading Modes
MC1
MC2
PHONE_IN
CD_L
CD_GND
CD_R
AUX_L
AUX_R
LINE_IN_L
LINE_IN_R
LFE_OUT
AD1980
CD
DIFF AMP
MZ
A
CENTER_OUT
MZ
A
LINE_OUT_L
MONO_OUT
LINE_OUT_R
MZ A
MZ A
MZ _A
SURR_OUT_L/
HP_OUT_L
HP M A
SURR_OUT_R/
HP_OUT_R
HP M A
REV. 0
MIC PREAMP
G
G
FUNCTIONAL BLOCK DIAGRAM
V_REFOUT
V_REF
G
VOLTAGE
REFERENCE
GM
GM
CODEC CORE
PCM L/R
ADC RATE
16-BIT
⌺-⌬ ADC
16-BIT
⌺-⌬ ADC
XTL_OUT XTL_IN SPDIF
SPDIF
TX
PLL
ID0
ID1
MG
PCM LFE
DAC RATE
20-BIT
⌺-⌬ DAC
GA
GA
GA
GA
MMM
M
M
M
MG
GA
GA
G = GAIN
A = ATTENUATION
M = MUTE
Z = HIGH Z
GA
GA
M
MMM
M
M
20-BIT
⌺-⌬ DAC
PCM FRONT
DAC RATE
MG
20-BIT
⌺-⌬ DAC
MG
20-BIT
⌺-⌬ DAC
M
MG
20-BIT
⌺-⌬ DAC
M
MG
20-BIT
⌺-⌬ DAC
PCM SURR
DAC RATE
DAC
SLOT
LOGIC
EQ
RESET
SYNC
BITCLK
SDATA_OUT
SDATA_IN
EQ
AC '97
CONTROL
REGISTERS
ANALOG MIXING
CONTROL LOGIC
EAPD
JS0
JS1 EAPD
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