AD1983 Datasheet, PDF (1/16 Pages) Analog Devices – HD Audio SoundMAX Codec

HD Audio SoundMAX^® Codec
AD1983
FEATURES
2 DAC channels: 16-, 20-, or 24-bit
2 ADC channels: 16- or 20-bit
HD audio sample rates
8 kHz, 11.025 kHz, 16 kHz, 22.05 kHz, 32 kHz,
44.1 kHz, 48 kHz
Greater than 90 dB dynamic range
S/PDIF output: 32 kHz, 44.1 kHz, or 48 kHz, 16- or 24-bit
Digital BEEP generator
Integrated headphone amplifiers
Selectable microphone inputs with preamplifiers
Stereo line level inputs
Full analog mixer
2 GPIOs for external circuit control, jack sense
32-lead, Pb-free LFCSP_VQ (QFN) package
ENHANCED FEATURES
No AFILT pins, results in BOM savings
Jack sensing autoconfiguration options
Mute line output and monaural output (MONO_OUT)
when headphones are used
Mute MONO_OUT when a device is in the line out jack
Selectable sense trip level: high/low supports all jack types
Peripheral identification/enumeration
Jack presence detection: HD Audio SENSE and GPIOs
Microphone to MONO_OUT for speakerphone
Advanced power management modes
2 software-controlled microphone bias pins
Stereo microphone array capture
Source from two different ports
0 dB, 10 dB, 20 dB, and 30 dB boost options
SDATA_IN
SDATA_OUT
SYNC
RESET
BIT_CLK
DV_DD
DV_SS
+3.3V
NID: 01
GPIO
JACK
SENSE
FUNCTIONAL BLOCK DIAGRAM
GPIO_0/JS_1
GPIO_1/JS_0
SENSE_A
SENSE_SRC
NID: 02
16-, 20-, 24-BIT
32kHz, 44.1kHz, 48kHz
PCM/AC3
S/PDIF TX
NID: 03
24-BIT
48kHz
PCM
Σ-Δ DAC
NID: 0A
S/PDIF_OUT
NID: 10
DIGITAL
PCBEEP
G
M
0dB TO –45.0dB
3dB STEPS
Σ
NID: 11
GA
–34.5dB TO +12dB
M
NID: 0E
Σ
–34.5dB TO +12dB
M
–34.5dB TO +12dB
M
NID: 04
20-BIT
48kHz
PCM/FLOAT32
Σ-Δ ADC
M
G
0dB TO +22.5dB
GA
NID: 13
GA
NID: 12
Figure 1.
Σ
NID: 0B
Σ
NID: 0F
NID: 0D
NID: 0C
BOOST
0dB, 10dB, 20dB, 30dB
AV_DD
AV_SS
+5.0V
GA
M
–46.5dBTO +3dB
NID: 06
HP
OUTPUT_EN
PORT-A
HEADPHONE
GA
M
Z
OUTPUT_EN
–46.5dBTO +3dB
NID: 05
PORT-D
FRONT
GA
M
–46.5dBTO +3dB
BIAS_SEL
MIC
BIAS
Z
BIAS_EN
NID: 07
MONO_OUT
NID: 09
MIC_BIAS-C
PORT-C
LINE IN
BIAS_SEL
MIC
BIAS
Z
BIAS_EN
NID: 08
MIC_BIAS-B
PORT-B
MIC
Rev. 0
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