Datasheet

www.ti.com
M S B
L –c h
R –c h
L –c h
R –c h
L S B
F O R M A T 3
M S B L S B
D A C : 2 0 –B it , M S B –F ir s t, I
2
S
A D C : 2 0 –B it, M S B –F ir s t , I
2
S
1 2 3 1 8 1 9 2 0 1 2 3 1 8 1 9 2 0
M S B L S B M S B L S B
1 2 3 1 8 1 9 2 0 1 2 3 1 8 1 9 2 0
I2SDIN
BCKIN
LRCIN
BCKIN
LRCIN
I2SDOUT
t
BCH
t
BCY
t
BCL
t
LB
t
DIH
t
DIS
t
LRP
t
BL
t
LDO
t
BDO
0.5V
DD
0.5V
DD
0.5V
DD
0.5V
DD
I2SDIN
I2SDOUT
BCKIN
LRCIN
TSC2301
SLAS371D – SEPTEMBER 2002 – REVISED AUGUST 2004
Figure 75. Audio Data Input/Output Format
Figure 76. Audio Data Input/Output Timing
Table 29. Audio Data Input/Output Timing
Parameter Symbol Min Max
BCKIN pulse cycle time t
BCY
300 ns
BCKIN pulse width high t
BCH
120 ns
BCKIN pulse width low t
BCL
120 ns
BCKIN rising edge to LRCIN edge t
BL
40 ns
LRCIN edge to BCKIN rising edge t
LB
40 ns
LRCIN pulse width t
LRP
t
BCY
ns
I2SDIN setup time t
DIS
40 ns
I2SDIN hold time t
DIH
40 ns
I2SDOUT delay time to BCKIN falling edge t
BDO
40 ns
I2SDOUT delay time to LRCIN edge t
LDO
40 ns
Rising time to all signals t
RISE
20 ns
68