92hd89c Integrated Device Technology, 92hd89c Datasheet - Page 22

• Manufacturer Part Number: 92hd89c
• Description: Six Channel Hd Audio Codec
• Manufacturer: Integrated Device Technology

92HD89C
Six channel HD Audio codec optimized for low power
©2009 INTEGRATED DEVICE TECHNOLOGY, INC.
IDT™ CONFIDENTIAL
ADC0.CnvrtID.Channel = 0
ADC1.CnvrtID.Channel = 2
ADC0.CnvrtID.Channel = 2
ADC1.CnvrtID.Channel = 0
BITCLK
SDI
ADC[1:0] Cnvtr
An example of a 4 Channel Steam with ADC0 supplying channels 0&1 and ADC1 supplying chan-
nels 2 & 3 is shown below. A 4 Channel stream can be created by assigning the same non-zero
stream id “Strm= N” to both ADC0 and ADC1. The sample rates must be set the same and the num-
ber of channels must be set to 4 channels “NmbrChan = 0011”.
The following figure describes the bus waveform for a 24-bit, 48KHz capture stream with ID set to 1.
0
STREAM ID
0
ADC1 CnvtrID
ADC0 CnvtrID
Stream ID
Stream ID
0
1
[15]
[14]
[13:11]
STREAM TAG
0
Bit Number
Length
Length
Data
Data
0
DATA LENGTH
Figure 4. Multi-channel timing diagram
1
Table 7. Example channel mapping
Left Channel
Left Channel
Figure 3. Multi-channel capture
1
ADC0
ADC1
0
StrmType
FrmtSmplRate
SmplRateMultp
0
Sub Field Name
(NID = 0x08)
[3:0]
(NID = 0x07)
[3:0]
ADC0
Table 8: Mult-channel
L23
Right Channel
Right Channel
LEFT
ADC0
ADC1
22
ADC0
L0
ADC0
ADC0
R23
RIGHT
Left Channel
Left Channel
DATA BLOCK
ADC1
ADC0
ADC0
R0
Stream Type (TYPE):
0: PCM
1: Non-PCM (not supported)
Sample Base Rate
0= 48kHz
1=44.1KHz
Sample Base Rate Multiple
000=48kHz/44.1kHz or less
001= x2
010= x3 (not supported)
011= x4 192kHz only, 176.4 not supported
100-111= Reserved
Ch = 2
Ch=0
ADC1
L23
LEFT
Right Channel
Right Channel
ADC1
L0
ADC1
ADC1
ADC0
ADC1
R23
RIGHT
Description
ADC1
R0
V 0.91 08/09
92HD89C