Data Sheet SSM4321
Rev. 0 | Page 19 of 24
I
2
S and Left Justified Modes with Voltage and Current Output Only, 64 × f
S
I
2
S output mode: SLOT pin is tied to IOVDD (or tied to GND through a 47 kΩ resistor for low power operation at 64 × f
S
).
Left justified output mode: SLOT pin is open.
BCLK_I2S
LRCLK_I2S
SDATAO I
2
S
SDATAO LJ
64 BCLKs
VOLTAGE
VOLTAGE
16 BCLKs 16 BCLKs
CURRENT
CURRENT
16 BCLKs 16 BCLKs
10752-020
Figure 43. I
2
S and Left Justified Modes with Voltage and Current Output Only, 64 × f
S
I
2
S Low Power Mode with Voltage and Current Output Only, 32 × f
S
SLOT pin is tied to GND through a 47 kΩ resistor for low power operation at 32 × f
S
.
VOLTAGE CURRENT
32 BCLKs
16 BCLKs 16 BCLKs
BCLK_I2S
LRCLK_I2S
SDATAO I
2
S
10752-021
Figure 44. I
2
S Low Power Mode with Voltage and Current Output Only, 32 × f
S
TIMING DIAGRAMS, MULTICHIP I
2
S MODE
Multichip I
2
S Mode with Two Devices on the Bus
IC 1: SLOT pin is tied to IOVDD; IC 2: SLOT pin is open.
IDCURRENT, IC 1PVDD, IC 1VOLTAGE, IC 1 IDCURRENT, IC 2PVDD, IC 2VOLTAGE, IC 2
16 BCLKs 8 BCLKs 16 BCLKs
4 BCLKs
16 BCLKs 8 BCLKs 16 BCLKs
4 BCLKs
64 BCLKs
BCLK_TDM
FSYNC_TDM
SDATAO
10752-022
Figure 45. Multichip I
2
S Mode with Two Devices on the Bus
Multichip I
2
S Mode with Three or Four Devices on the Bus
IC 1: SLOT pin is tied to IOVDD; IC 2: SLOT pin is open; IC 3: SLOT pin is tied to GND; IC 4: SLOT pin is tied to IOVDD through a
47 kΩ resistor.
IDCURRENT, IC 1PVDD, IC 1VOLTAGE, IC 1 IDCURRENT, IC 2PVDD, IC 2VOLTAGE, IC 2
16 BCLKs 8 BCLKs 16 BCLKs
4 BCLKs
16 BCLKs 8 BCLKs 16 BCLKs
4 BCLKs
64 BCLKs
BCLK_TDM
FSYNC_TDM
SDATAO
BCLK_TDM
FSYNC_TDM
SDATAO
IDCURRENT, IC 3PVDD, IC 3VOLTAGE, IC 3 IDCURRENT, IC 4PVDD, IC 4VOLTAGE, IC 4
16 BCLKs 8 BCLKs 16 BCLKs
4 BCLKs
16 BCLKs 8 BCLKs 16 BCLKs
4 BCLKs
10752-023
Figure 46. Multichip I
2
S Mode with Three or Four Devices on the Bus
