Denon RCD-N9 Service Manual page 74

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These devices have limited built-in ESD protection. The leads should be shorted together or the device placed in conductive foam
during storage or handling to prevent electrostatic damage to the MOS gates.
1.4 Block Diagram
TAS5558 Block Diagram
SDIN1
SDIN2
SCLK
LRCLK
SDIN2-1
SDIN2-2
SCLKO /SCLKIN_2
LRCLKO / LRCKIN_2
SDOUT/SDIN5
1.5 DESCRIPTION (Continued)
The TAS5558 can drive eight channels of H-bridge power stages. Texas Instruments Power Stages are
designed to work seamlessly with the TAS5558. The TAS5558 supports either the single-ended or bridge-
tied-load configuration. The TAS5558 also provides a high-performance, differential output to drive an
external, differential-input, analog headphone amplifier.
The TAS5558 supports AD, BD, and ternary modulation operating at a 384-kHz switching rate for 48-, 96-,
and 192-kHz data. The 8× oversampling combined with the fourth-order noise shaper provides a broad,
flat noise floor and excellent dynamic range from 20 Hz to 32 kHz.
TAS5558 also features power-supply-volume-control (PSVC) improves dynamic range at lower power
level and can be used as part of a Class G Power Supply when used with closed loop PWM input power
stages.
Copyright © 2013, Texas Instruments Incorporated
Fixed Flow
Serial Audio
Digital Audio
Receiver
Processor
2x Stereo 4ch ASRC
Serial Audio Bypass
Receiver
8ch Processor
4ch ASRC
2x Stereo
8ch Output Mixer
Clocks
Serial Audio
Transciever
(Osc, PLL
12.288
Stereo
etc)
Figure 1-1. Functional Block Diagram
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Product Folder Links: TAS5558
74
SLES273A – APRIL 2013 – REVISED JUNE 2013
8ch PWM
(DAP)
Generator
+ Headphone
(PWM)
10ch input
Power
Energy Supply
I2C
Manager Volume MCU Power
Control
(EMO) Control
(PSVC)
Device Information
PWM_x_1
through 8
/BKND_ERR
VALID
PWM_HPM_L&R
PWM_HPP_L&R
/MUTE
/PDN
DVSS2
DVSS1
DVDD2
DVDD1
AVSS_PWM
AVSS
AVDD_PWM
3