NAD L 70, Service Manual

Page: 28 / 60

2-29
CLK
ISET
DGND
SCL
SDA
PDAT[7:0]
RD
WR
ADDR
XTAL_OUT
VD[7:0]
HSYNC
VSYNC
FIELD
INT
RESET
I
2
C Interface
Host
Parallel
Interface
Color Sub-carrier Synthesizer
8
Video Formatter
Control
Registers
Chroma Modulate
Chroma Amplifier
Output
Interpolate
LPF
Burst Insert
Chroma Interpolate
LPF
Luma Interpolate
Luma Amplifier
Sync Insert
U,V
Y
Video Timing
Generator
TEST
Current
Reference
Voltage
Reference
VREF
R
DAC
Y
DAC
CVBS
DAC
C
10-Bit
DAC
VAA
XTAL_IN
Tel etext
Encoder
TTXRQ
TTXDAT
YCbCr to RBG
B
DAC
G
DAC
10-Bit
10-Bit
10-Bit
10-Bit
10-Bit
RGB
RGB
Y
Y
8
Color Space
Converte
CS4955 (VIDEO ENCODER : IC14)
PIN DESCRIPTION
BLOCK DIAGRAM