SI4720-B20-GMR Datasheet, PDF (17/48 Pages) Silicon Laboratories – BROADCAST FM RADIO TRANSCEIVER FOR PORTABLE APPLICATIONS

Si4720/21-B20
Table 11. Digital Audio Interface Characteristics (Transmit)
(V_DD = 2.7 to 5.5 V, V_IO = 1.5 to 3.6 V, T_A = –20 to 85 °C)
Parameter
Symbol Test Condition Min
Typ
Max
Unit
DCLK pulse width high
DCLK pulse width low
DFS set-up time to DCLK rising edge
DFS hold time from DCLK rising edge
DIN set-up time from DCLK rising edge
DIN hold time from DCLK rising edge
DCLK, DFS, DIN, Rise/Fall time
DCLK Tx Frequency^1,2
t_DCH
t_DCL
t_SU:DFS
t_HD:DFS
t_SU:DIN
t_HD:DIN
t_R
t_F
10
—
—
ns
10
—
—
ns
5
—
—
ns
5
—
—
ns
5
—
—
ns
5
—
—
ns
—
—
10
ns
1.0
—
40.0
MHz
Notes:
1. Guaranteed by characterization.
2. The DCLK frequency may be set below the minimum specification if DIGITAL_INPUT_SAMPLE_RATE is first set to 0
(disable).
DCLK
tR
tF
DFS
t_HD:DFS
t_SU:DFS
DIN
t_SU:DIN
t_HD:DIN
Figure 9. Digital Audio Interface Timing Parameters, I²S Mode
Rev. 1.0
17