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HT-DV40H
8 – 35
IC10 VHINJU26220FN : DOLBY VIRTUAL SPEAKER / HEADPHONE DECODER ( NJU26220FN ) ( 1/3 )
BLOCK DIAGRAM
Figure 8-5 BLOCK DIAGRAM OF IC
HPVCC1
66
Power
HDMI PLL1 power 3.3V
HPVCC2
81
Power
HDMI PLL2 power 3.3V
TMDSVCC18
84
Power
HDMI analog power 1.8V
AVDD1
102
Power
Video DAC power 3.3V
AVSS1
98
Gnd
Video DAC GND
AVDD2
95
Power
Video DAC power 3.3V
AVSS2
94
Gnd
Video DAC GND
SPLLVCC
127
Power
System PLL power 1.8V
SPLLGND
1
Gnd
System PLL GND
External RC Pins
EXT_SWING
67
LVTTL
Output
HDMI Voltage Swing Adjust Resistor
SPLLRC
128
LVTTL
Output
System PLL Low Pass Filter
DAC_VBSP
99
LVTTL
Output
Connect a capacitor to AVDD1
DAC_FSADJ
100
LVTTL
Output
Connect a Reference Voltage Adjust Resistor to AVSS1
DAC_REFOUT
101
LVTTL
Output
Connect a capacitor to AVDD1
Mnemonic
Pin#
Type
Dir.
Description
NJU26220
AD1/SDIN
SCL/SCK
SERIAL
HOST
INTERFACE
24bit Fixed-point DSP Core
SERIAL AUDIO
INTERFACE
24-BIT x 24-BIT
MULTIPLIER
ADDRESS GENERATION UNIT
PROGRAM
CONTROL
ALU
SDA/SDOUT
RESETb
MCK
TIMING
GENERATOR
/ PLL
DATA
RAM
FIRMWARE
ROM
General I/O
INTERFACE
PROC
MUTEb
SEL
WDC
BCK0
LR0
SDO0
SDI*
SD01
SD02
BCKI
SD03
LRI
CLK
CLKOUT
AD2/SSb
Monitor
L/R
C/SW
SL/SR
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