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SSM4321ACBZ-R7 数据表(PDF) 19 Page - Analog Devices

部件名 SSM4321ACBZ-R7
功能描述  Mono 2.9 W Class-D Audio Amplifier
PDF  24 Pages
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制造商  AD [Analog Devices]
网页  http://www.analog.com
标志 AD - Analog Devices

SSM4321ACBZ-R7 数据表(HTML) 19 Page - Analog Devices

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Data Sheet
SSM4321
Rev. 0 | Page 19 of 24
I2S and Left Justified Modes with Voltage and Current Output Only, 64 × fS
I2S output mode: SLOT pin is tied to IOVDD (or tied to GND through a 47 kΩ resistor for low power operation at 64 × fS).
Left justified output mode: SLOT pin is open.
BCLK_I2S
LRCLK_I2S
SDATAO I2S
SDATAO LJ
64 BCLKs
VOLTAGE
VOLTAGE
16 BCLKs
16 BCLKs
CURRENT
CURRENT
16 BCLKs
16 BCLKs
Figure 43. I2S and Left Justified Modes with Voltage and Current Output Only, 64 × fS
I2S Low Power Mode with Voltage and Current Output Only, 32 × fS
SLOT pin is tied to GND through a 47 kΩ resistor for low power operation at 32 × fS.
VOLTAGE
CURRENT
32 BCLKs
16 BCLKs
16 BCLKs
BCLK_I2S
LRCLK_I2S
SDATAO I2S
Figure 44. I2S Low Power Mode with Voltage and Current Output Only, 32 × fS
TIMING DIAGRAMS, MULTICHIP I2S MODE
Multichip I2S Mode with Two Devices on the Bus
IC 1: SLOT pin is tied to IOVDD; IC 2: SLOT pin is open.
ID
CURRENT, IC 1
PVDD, IC 1
VOLTAGE, IC 1
ID
CURRENT, IC 2
PVDD, IC 2
VOLTAGE, 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
Figure 45. Multichip I2S Mode with Two Devices on the Bus
Multichip I2S 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.
ID
CURRENT, IC 1
PVDD, IC 1
VOLTAGE, IC 1
ID
CURRENT, IC 2
PVDD, IC 2
VOLTAGE, 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
ID
CURRENT, IC 3
PVDD, IC 3
VOLTAGE, IC 3
ID
CURRENT, IC 4
PVDD, IC 4
VOLTAGE, IC 4
16 BCLKs
8 BCLKs
16 BCLKs
4 BCLKs
16 BCLKs
8 BCLKs
16 BCLKs
4 BCLKs
Figure 46. Multichip I2S Mode with Three or Four Devices on the Bus



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