92hd87b4x5ndg Integrated Device Technology, 92hd87b4x5ndg Datasheet - Page 17

• Manufacturer Part Number: 92hd87b4x5ndg
• Description: Single Chip Pc Audio System Codec+stereo Speaker Amplifier+capless Hp+ldo
• Manufacturer: Integrated Device Technology

IDT PROPRIETARY / IDT
SINGLE CHIP PC AUDIO SYSTEM, CODEC+SPEAKER AMPLIFIER+CAPLESS HP+LDO
92HD87
SINGLE CHIP PC AUDIO SYSTEM, CODEC+SPEAKER AMPLIFIER+CAPLESS HP+LDO
ADC0.CnvrtID.Channel = 0
ADC1.CnvrtID.Channel = 2
ADC0.CnvrtID.Channel = 2
ADC1.CnvrtID.Channel = 0
BITCLK
SDI
CONFIDENTIAL
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
STREAM TAG
0
Length
Length
Data
Data
0
DATA LENGTH
Figure 2. Multi-channel timing diagram
1
Table 4. Example channel mapping
Left Channel
Left Channel
Figure 1. Multi-channel capture
1
ADC0
ADC1
0
0
(NID = 0x08)
[3:0]
(NID = 0x07)
[3:0]
ADC0
L23
Right Channel
Right Channel
LEFT
ADC0
ADC1
17
ADC0
L0
ADC0
ADC0
R23
RIGHT
Left Channel
Left Channel
DATA BLOCK
ADC1
ADC0
ADC0
R0
Ch = 2
Ch=0
ADC1
L23
LEFT
Right Channel
Right Channel
ADC1
L0
ADC1
ADC1
ADC0
92HD87
ADC1
R23
RIGHT
ADC1
R0
PC AUDIO
V 0.95 10/10