AN1836-AN21161 Analog Devices, AN1836-AN21161 Datasheet - Page 13

• Manufacturer Part Number: AN1836-AN21161
• Description: Interfacing the ADSP-21161 SIMD SHARC DSP to the AD1836 (24-bit/96 kHz) Multichannel Codec
• Manufacturer: Analog Devices

2.1 ADSP21161 / AD1836 Audio Output Frame (D2A to DSDATA1)
The audio output frame data streams correspond to the multiplexed bundles of all digital output data targeting the AD1836
DAC inputs. Each audio output frame can support up to 8, 32-bit outgoing data time slots. The following diagram illustrates
the timeslot-based protocol.
ABCLK (SCLK2)
DSDATA1 (D2A)
Figure 11. ADSP-21161 EZ-KIT Lite Audio Interface (Extended TDM Mode with 2 Auxiliary Devices)
FSTDM (FS0)
End of previous
Audio Frame
TORX173
Receiver
RCA
Phono
Line In
JACKs
Optical
Optional 1/8
Inch MIC jack
for ADC0
Figure 12. AD1836 TDM Audio Output Frame - ADSP-21161 to AD1836
Out Jack for
Headphone
DAC0 L/R
1/8
Optional
CS8414
SSM2275
Start of new
Audio Frame
th
Stereo
Amps
31
Inch
th
12.288
MHz
30
29
AUX In
I
L0
R0
L1
R1
ADC
2
81.4 nS
S
L0
Slot 0
3
R0
2
1
AD1836
SPORT0 SPORT2
RCA Phono Line Out Connectors
L1
0
TDM Mode
Interface
ADSP-21161N
SSM2275 Stereo Amps
R1
31
Slot 1
L2
0
(48 KHz)
20.8uS
R2
31
Slot 2
DAC
AUX
I
Out
2
S
0
31
L
AD1852
Slot 3
DAC
0
R
31
Slot 7
0