Circuit Descriptions, Abbreviation List, and IC Data Sheets
9.
9.3
Brief IC Descriptions
9.3.1
IC201 (TMPA8891CXBNG)
The TMPA8891 is an integrated circuit for a PAL/ NTSC/
SECAM TV. A microcontroller (MCU) and a TV signal
processor are integrated in a 64-pin shrink DIP package.
The MCU part contains:
•
8-bit CPU.
•
ROM.
•
RAM.
•
I/O ports.
•
Timers/ counters.
•
A/D converters.
•
On-Screen Display controller.
•
remote control interfaces.
•
IIC bus interfaces.
•
Closed Caption decoder.
The TV signal processor part contains:
•
PIF.
•
SIF.
•
Video.
•
Multi-standard chroma.
•
Sync.
•
RGB processors.
Block diagram is as follows:
Figure 9-2 Block diagram IC201 (TMPA8891CXBNG)
H_171
3
0_0
3
5.ep
s
240407
PIF Proc.
PAL/ NTSC demod
Auto.VCO
alignment
Vert.Proc.
V.C/D
V.ramp
V.geometry
V.Drive
Hor.Proc.
Sync.sepa
Hor.VCO HAFC-1
HAFC-2 H-shift
Cut-off
Drive
RGB switch
Brightness
Half-tone
Transparent
XO
870X CPU core
STOP/IDLE mode
I/O
10 I/O port
14-bit PWM x1
7-bit PWM x1
8-bit ADC Ext.x3
Int.x1
Romote preprocessor
16-bit int.timer x2
8-bit int.timer x2
Watchdog timer
Interrupt
Ext.x5 Int.x11
IIC bus interfece
Ext.x1 Int.x1
AFT
OSD R/G/B/Ys/I
Font:16 x 18
Display:32C x 12L
Color:8
Character:384
Half-tone
Transparent
CCD
Y Proc.
C-Trap
Black stretch
Y gamma
Sharpness
Base Band Proc.
TINT
1H DL Int/Ext switch
Color Uni-color
RGB Matrix
ROM:
㧠㧤
kB
RAM:2kB
ROM correction
Sound
TRAP
IF
AGC
AGC
DET
Reg.
FM
DEMO
De-emp
(on/off)
ALC
BPF
SW
VM
AU
Mo
ni
to
r ou
t-
1
H/
Lou
t / SI
F
ou
t
/AU
M
o
n
ito
r
out-
2
C /
V
3 CV
B
S
Video SW
Audio SW
IF
G
N
D
AU
Mo
ni
tor
T
V
out 2Vpp
/ F
M
r
a
di
o
P56
P51
/SC
L
IF IN
SAW
P31
/Int4
/T
C
3
P52
/SD
A
APC
F
il
PIF
PL
L
+
IF AG
C
+
Bl
ac
k
D
e
t
P63
/LED
2
+
RF A
G
C
P30
/Int3
/R
X
IN
TV
Di
g
G
N
D
Bou
t
Go
ut
Ro
u
t
M
o
n
it
o
r /
V
M o
u
t
DC
N
F
+
DV
cc
IF G
N
D
S-
R
eg.F
+
u
P
A
V
dd
5V
+
uP
M
P
A
G
ND
56
50
52
53
54
55
49
43
44
45
46
47
48
42
36
37
38
39
40
41
35
33
34
64
58
59
60
61
62
63
57
51
IF Vc
c 5
V
+
H/
L o
u
t
YC
V
cc
5
V
P20
/Int5
/Sto
p
P40
/PW
M1
4bi
t
P50
/PW
M7
bi
t/
T
C
2
/Int
0
+
+
+
EX
T
AU
1
+
P5
3/AD
C
8b
it
/T
C
1
/Int2
AU
o
u
t 1
V2 C
V
BS/Y
Cr in
p
u
t
Y
inpu
t
Cb
in
p
u
t
FB
P
SC
P
TV
D
E
F
G
N
D
P
6
1
/LE
D1
/A
DC8
b
it
P6
0/AD
C
8
b
it
Hou
t
Vout
Vsaw
HA
F
C
1
+
V1 IN
1
V
pp
+
ABC
L
EX
T
AU
2
+
uP
V
V
ss
T
EST
uP
DV
ss
+
uP
DV
DD
5
V
1
7
6
5
4
3
2
8
14
13
12
11
10
9
15
21
20
19
18
17
16
22
28
27
26
25
24
23
32
31
30
29
8MHz
AL
C
fil
te
r
A Vc
c 8V
AU
o
u
t
2
Re
set
TV
A
G
N
D
+
+
+
-6dB
+
SW
ATT
ATT
H.co
rr
e
ctio
n
/2
nd SIF
in
Chroma Proc.
C-BPF
PAL/NTSC/SECAM
Block Dia
g
ram & Pin Confi
g
uration
