CDB44800 Cirrus Logic Inc, CDB44800 Datasheet - Page 29

• Manufacturer Part Number: CDB44800
• Description: BOARD EVAL FOR CS44800 PWM CTRL
• Manufacturer: Cirrus Logic Inc
• Series: Popguard®r

Specifications of CDB44800

• Amplifier Type: Class D
• Output Type: 8-Channel
• Voltage - Supply: 20 V ~ 50 V
• Operating Temperature: -10°C ~ 70°C
• Board Type: Fully Populated
• Utilized Ic / Part: CS44800
• Description/function: Audio DSPs
• Operating Supply Voltage: 5 V
• Product: Audio Modules
• For Use With/related Products: CS44800
• Lead Free Status / RoHS Status: Contains lead / RoHS non-compliant
• Max Output Power X Channels @ Load: -
• Lead Free Status / Rohs Status: Lead free / RoHS Compliant
• Other names: 598-1532; CDB-44800

DS632F1
DAI_SDINx
DAI_LRCK
DAI_SCLK
DAI_SDIN1
DAI_LRCK
DAI_SCLK
DAI_SDIN4
4.4.1.3
4.4.1.4
In the right-justified format, data is received most significant bit first and with the least significant bit pre-
sented on the last DAI_SCLK before the DAI_LRCK transition and is valid on the rising edge of
DAI_SCLK. For the right-justified format, the left channel data is presented when DAI_LRCK is high and
the right channel data is presented when DAI_LRCK is low. Either 16 bits per sample or 24 bits per sam-
ple are supported.
In One Line mode #1 format, data is received most significant bit first on the first DAI_SCLK after a
DAI_LRCK transition and is valid on the rising edge of DAI_SCLK. DAI_SCLK must operate at a 128Fs
rate. DAI_LRCK identifies the start of a new frame and is equal to the sample period. DAI_LRCK is sam-
pled as valid on the same clock edge as the most significant bit of the first data sample and must be held
high for 64 DAI_SCLK periods. Each time slot is 20 bits wide, with the valid data sample left-justified within
the time slot. Valid data lengths are 16, 18, or 20 bits. Valid samples rates for this mode are 32 kHz to
96 kHz.
MSB
MSB
PWMOUTA4
PWMOUTA1
20 clks
20 clks
Right-Justified Data Format
One Line Mode #1
Right-Justified Mode, Data Valid on Rising Edge of DAI_SCLK
Bits/Sample
16
24
LSB
LSB
15 14 13 12 11 10
MSB
Left Channel
PWMOUTA2
Figure 20. One Line Mode #1 Serial Audio Format
Left Channels
20 clks
Figure 19. Right-Justified Serial Audio Formats
64 clks
LSB
9
8
MSB
7
PWMOUTA3
6
20 clks
5
SCLK Rate(s)
32, 48, 64, 128, 256 Fs
48, 64, 128, 256 Fs
4
LSB
3
2
1
0
MSB
MSB
PWMOUTB1
PWMOUTB4
20 clks
20 clks
LSB
LSB
15 14 13 12 11 10
MSB
PWMOUTB2
Right Channels
20 clks
64 clks
Right Channel
LSB
9
MSB
PWMOUTB3
8
20 clks
7
6
5
LSB
4
3
CS44800
2
1
MSB
MSB
0
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