
Si4770/77-A20
Table 3. Digital Audio Interface Characteristics*
(T AMB = –40 to 85 °C, V A = 4.5 to 5.5 V, V D = 2.7 to 3.6 V, V IO1 = 1.7 to 3.6 V, V IO2 = 1.2 to 3.6 V)
Parameter
DCLK Input Cycle Time
DCLK Input Pulse Width
High
DCLK Input Pulse Width
Low
DFS Setup Time
DFS Hold Time
DOUT ouTput Delay
Capacitive Loading
Symbol
t CYC: DCLK
t HI: DCLK
t LO: DCLK
t SU:DFS
t HD:DFS
t PD:DOUT
C B
Test Condition
VIO 2 < 1.33 V
VIO 2 > 1.33 V
Min
70
0.4 x t CYC:DCLK
0.4 x t CYC:DCLK
10
5
0
—
—
Typ
—
—
—
—
—
—
—
—
Max
—
0.6 x t CYC:DCLK
0.6 x t CYC:DCLK
—
—
35
10
15
Unit
ns
ns
ns
ns
ns
ns
pF
*Note: Guaranteed by characterization.
DCLK in
t CYC:DCLK
t SU:DFS
t HD:DFS
t HI:DCLK
t LO:DCLK
DFS in
t PD:DOUT
DOUT out
Figure 1. Digital Audio
Rev. 0.9
7