CS44600-DQZ CIRRUS [Cirrus Logic], CS44600-DQZ Datasheet - Page 49
CS44600-DQZ
Manufacturer Part Number
CS44600-DQZ
Description
6-Channel Digital Amplifier Controller
Manufacturer
CIRRUS [Cirrus Logic]
Datasheet
1.CS44600-DQZ.pdf
(78 pages)
- Current page: 49 of 78
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DS633PP1
7.3
7.3.1
7.3.2
7.3.3
7.3.4
EN_SYS_CLK SYS_CLK_DIV1 SYS_CLK_DIV0
7
Clock Configuration and Power Control (address 02h)
Enable SYS_CLK Output (EN_SYS_CLK)
Default = 1
Function:
This bit enables the driver for the SYS_CLK signal. If the SYS_CLK output is unused, this bit should be
set to ‘0’b to disable the driver.
SYS_CLK Clock Divider Settings (SYS_CLK_DIV[1:0])
Default = 00
Function:
These two bits determine the divider for the XTAL clock signal for generating the SYS_CLK signal. During
a reset condition, with the RST input pin held low, the logic level on the MUTE input pin will determine the
divider used for the SYS_CLK output. If MUTE is pulled low, the SYS_CLK divider will be set to divide
the clock frequency on XTI by a factor of 1. If the MUTE pin is pulled high, the SYS_CLK output will be
set to perform a divide-by-2 on the XTI clock. The state of the MUTE pin will be latched on the rising edge
of the RST. The MUTE pin can then be used as defined.
PWM Master Clock Divider Settings (PWM_MCLK_DIV[1:0])
Default = 00
Function:
These two bits determine the divider for the XTAL clock signal for generating the PWM_MCLK signal.
Power Down XTAL (PDN_XTAL)
Default = 0
0 - Crystal Oscillator Circuit is running.
1 - Crystal Oscillator Circuit is powered down.
Function:
This bit is used to power down the crystal oscillator circuitry when not being used. When using a clock
signal attached to the XTI input, this bit should be set to ‘1’b.
6
SYS_CLK_DIV[1:0]
5
PWM_MCLK_DIV[1:0]
00
01
10
11
PWM_MCLK_DIV1
00
01
10
11
Use state of MUTE input pin following RST
4
SYS_CLK Clock Divider
PWM Master Clock
PWM_MCLK_DIV0 PDN_XTAL PDN_OUTPUT_MODE PDN
Divide by 2
Divide by 4
Divide by 8
Divide by 1
Divide by 2
Divide by 4
Divide by 8
condition
Divider
3
2
1
CS44600
0
49
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