Datasheet

HPPWM
PWM8
PWM7
PWM6
PWM5
PWM4
PWM3
PWM2
PWM1
MCLKI
SDIN
SDOUT1
SDOUT2
SCKI
LRCKI
TAS3108
Audio Source
CLK_Gen
Control
LRCK1
SCK1
SDIN1
SDIN2
8ch PWM
Modulator
+
HP-PWMOUT
32kHz–192kHz Input
4ch ASRC
Fixed 96kHz Output
32 bits Data Path
48 bits Accumulator
1365 Cycles
Fixed Processing DAP
10 Channel Input Mixer
8 Channel Processing
8 Channel Output Mixer
32kHz–192kHz Input
4ch ASRC
Fixed 96kHz Output
Serial Audio
Receiver
4ch
2 Stereo
Serial Audio
Receiver
4ch
2 Stereo
LRCKO/LRCKIN2
SCKO/SCKIN2
SDIN3
SDIN4
4ch
4ch
Serial Audio
Receiver
Transmitter
1 Stereo
SDOUT/SDIN5
I/
O
I
O
I
I
I
I
I
I/
O
I/
O
MCLKO/PSVC
OSC
12.288MHz
8ch
O
O
O
O
O
O
O
O
O
IO
SDOUT
MCLKO
2ch
2ch
Bypass mode
2ch
TAS5548
SLES270 –NOVEMBER 2012 www.ti.com
Table 9-1. Master/Slave Serial Audio Receiver/Transmitter
Slave Serial Audio port Master Serial Audio port
• To ASRC1 and ASRC2
• MCLKO
– SCLK LRCLK
• SCLKO
– Synchronous data
Use case-1
• SDIN1
• LRCLKO
• SDIN2
• Synchronous data
• SDIN3
– SDIN5(mic) or SDOUT
• SDIN4
• To ASRC1
– SCLK
– LRCLK
– Synchronous data
• SDIN1
• SDIN2
Use case-2 None of Master
• To ASRC2
– SCLKIN-2
– LRCLKIN-2
– Synchronous data
• SDIN2-1
• SDIN2-2
• MLCKO
• To ASRC1
• SCLKO
– SCLK
• LRCLKO
– LRCLK
Use case-3
• Synchronous data
– Synchronous data
– SDIN2-1 (ASRC2)
• SDIN1
– SDIN2-2 (ASRC2)
• SDIN2
– SDIN5 or SDOUT
By using use case-3, TAS5548 can connect TAS3108 as external co-processor as follows:
Figure 9-4. TAS3108 as External Co-processor
66 Application Recommendations / Settings Copyright © 2012, Texas Instruments Incorporated
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