FORMAT 3: PCM3002 Only
DAC: 20-Bit, MSB-First, I2S
L-ch
LRCIN
BCKIN
R-ch
1
2
3
18 19 20
LSB
1
2
3
18 19 20
LSB
DIN
MSB
MSB
ADC: 20-Bit, MSB-First, I2S
L-ch
LRCIN
BCKIN
R-ch
1
2
3
18 19 20
LSB
1
2
3
18 19 20
LSB
DOUT
MSB
MSB
FIGURE 3. Audio Data Input/Output Format.
tLRP
LRCIN
0.5VDD
tLB
tBL
tBCH
tBCL
0.5VDD
0.5VDD
0.5VDD
BCKIN
tBCY
tDIS
tDIH
DIN
tBDO
tLDO
DOUT
BCKIN Pulse Cycle Time
BCKIN Pulse Width High
BCKIN Pulse Width Low
tBCY
300ns (min)
120ns (min)
120ns (min)
40ns (min)
40ns (min)
tBCY (min)
tBCH
tBCL
tBL
BCKIN Rising Edge to LRCIN Edge
LRCIN Edge to BCKIN Rising Edge
LRCIN Pulse Width
tLB
tLRP
tDIS
tDIH
DIN Set-up Time
40ns (min)
40ns (min)
40ns (max)
40ns (max)
20ns (max)
20ns (max)
DIN Hold Time
DOUT Delay Time to BCKIN Falling Edge
DOUT Delay Time to LRCIN Edge
Rising Time of All Signals
tBDO
tLDO
tRISE
tFALL
Falling Time of All Signals
FIGURE 4. Audio Data Input/Output Timing.
®
PCM3002/3003
14
BB [ BURR-BROWN CORPORATION ]
