WM8608 ETC-unknow, WM8608 Datasheet - Page 44

• Manufacturer Part Number: WM8608
• Description: The Wm8608 Comprises A High Performance Multi-channel Pwm Digital Power Amplifier Controller. Simply By Adding Appropriate Power Output Stages A Multi-channel Power Amplifier May Be Built. Six Identical Full Audio Bandwidth Channels, Plus A Reduced B
• Manufacturer: ETC-unknow

WM8608
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PWM OUTPUT CONFIGURATION
Two different PWM output formats are supported. These are:
The PWM output format can be defined with the LVDS and PWMCFG setting defined in Table 47.
Table 47 PWM Output Configuration
OUTPUT CONFIGURATION
If required the WM8608 device can be disabled in a system by setting the TRI bit as defined in Table
48. Setting the TRI bit will set all output pins of the device to high impedance.
Table 48 Output Configuration
R27 (1Bh)
PWM Output
Configuration
R28 (1Ch)
Output
Configuration
REGISTER
REGISTER
ADDRESS
ADDRESS
CMOS or LVDS
Tri-state outputs to support power-down.
0
BIT
2:1
BIT
3
7
0
LVDS
PWMCFG
[1:0]
PWMPH
PWMCLK
TRI
LABEL
LABEL
0
00
1
0
DEFAULT
0
DEFAULT
Output PAD configuration
0 = CMOS
1 = LVDS
PWM Output State for LVDS=0 when
output disabled or in standby mode:
01 = all PWM Outputs high
00 = all PWM Outputs low
10, 11 = high impedance
For LVDS=1 when output disabled or in
standby mode, the output state is high
impedance.
PWM Output Phase
0 = PWM outputs in phase
1 = PWM outputs phase shifted to each
other
PWM Output Clock
0 = disabled
1 = enabled
Output Pins Mode
0 = Normal
1 = High Impedance
DESCRIPTION
DESCRIPTION
PP Rev 1.5 March 2004
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