Datasheet

1−3
1.2 Functional Block Diagram
Control
Interface
Digital
Filters
Digital
Audio
Interface
Σ−∆
DAC
Σ
6 to −73 dB,
1 dB Steps
Headphone
Driver
Σ−∆
DAC
Σ
6 to −73 dB,
1 dB Steps
Headphone
Driver
CLKOUT
Divider
(1x, 1/2x)
OSC
CS
SDIN
SCLK
MODE
DVDD
BVDD
DGND
LRCIN
DIN
LRCOUT
DOUT
BCLK
AVDD
VMID
AGND
RLINEIN
LLINEIN
HPVDD
HPGND
RHPOUT
ROUT
LOUT
LHPOUT
XTI/MCLK
XTO
CLKOUT
DSPcodec
TLV320AIC23
1.0X
1.0X
VADC
VMID
50 kΩ
50 kΩ
Σ−∆
ADC
2:1
MUX
VDAC
Σ−∆
ADC
2:1
MUX
Mute,
0 dB, 20 dB
VMID
50 kΩ
10 kΩ
VADC
12 to −34.5 dB,
1.5 dB Steps
1.0X
1.5X
VDAC
12 to −34 dB,
1.5 dB Steps
MICBIAS
MICIN
CLKIN
Divider
(1x, 1/2x)
Line
Mute
Line
Mute
Side Tone
Mute
Bypass
Mute
Bypass
Mute
NOTE: MCLK, BCLK, and SCLK are all asynchronous to each other.