Sharp 21HS-50H Service Manual page 21

ICs ADDITIONAL INFORMATION:TDA9350(IC801)
SYMBOL PIN
INSSW2 45
R2/VIN 46
G2/YIN 47
B2/UIN 48
BCLIN 49
BLKIN 50
RO 51
GO 52
BO 53
VDDA 54
VPE 55
VDDC 56
OSCGND 57
XTALIN 58
XTALOUT 59
RESET 60
VDDP 61
P1.0/INT1 62
P1.1/T0 63
P1.2/INT0 64
Note
1. The function of pin 20, 28, 29, 31, 32, 35 and 44 is dependent on the IC version (mono intercarrier FM demodulator
/ QSS IF amplifier and East-West output or not) and on some software control bits. The valid combinations are given
in table 1.
2. The vertical guard function can be controlled via pin 49 or pin 50. The selection is made by means of the IVG bit in
subaddress 2BH.
Table 1 Pin functions for various versions
IC version
East-West Y/N
CMB1/CMB0 bits 00
−
AM bit
Pin 20 AVL
Pin 28
Pin 29
Pin 31
(1)
Pin 32 SNDIF
Pin 35
Pin 44
Note
1. When additional (external) selectivity is required for FM-PLL system pin 32 can be used as sound IF input. This
function is selected by means of SIF bit in subaddress 28H.
2. The reference output signal is only available for the CMB1/CMB0 setting of 0/1. For the other settings this pin is a
switch output (see also table 67).
nd
2 RGB / YUV insertion input
nd
2 R input / V (R-Y) input
nd
2 G input / Y input
nd
2 B input / U (B-Y) input
beam current limiter input / (V-guard input, note 2)
black current input / (V-guard input, note 2)
Red output
Green output
Blue output
analog supply of Teletext decoder and digital supply of TV-processor (3.3 V)
OTP Programming Voltage
digital supply to core (3.3 V)
oscillator ground supply
crystal oscillator input
crystal oscillator output
reset
digital supply to periphery (+3.3 V)
port 1.0 or external interrupt 1 input
port 1.1 or Counter/Timer 0 input
port 1.2 or external interrupt 0 input
FM-PLL version
N Y
01/10/11 00 01/10/11
− −
EWD
AUDEEM
DECSDEM
SNDPLL
(2) (1)
REFO AVL/SNDIF REFO
AUDEXT
AUDOUT
DESCRIPTION
QSS version
N
00 01/10/11
− −
0
AVL
(2) (2)
AMOUT REFO
AUDEXT QSSO AMOUT AUDEXT QSSO AMOUT
controlled AM or audio out
21
21HS-50H
Y
00 01/10/11
−
1 0
EWD
SIFIN1
SIFIN2
SIFAGC
(2)
AMOUT REFO
1