Philips FW-D550/21M, Руководство по обслуживанию

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PT6311 INTERNAL IC DIAGRAM
PT6311 PIN DESCRIPTION
Serial
Data
interface
LED
Driver
OSC
Timming
Generator
Segment
Driver/
Grid
Driver/
Key Scan
Output
Dimming
Circuit
Grid
Driver
Control
Genaral
Input
Register
Key Matrix
Memory
Genaral
Input
Register
SG1/KS1
SG2/KS2
SG3/KS3
SG4/KS4
SG5/KS5
SG6/KS6
SG7/KS7
SG8/KS8
SG9/KS9
SG10/KS10
SG11/KS11
SG12/KS12
SG13/GR16
SG14/GR15
SG15/GR14
SG16/GR13
SG17/GR12
SG18/GR11
SG19/GR10
SG20/GR9
GR1
GR2
GR3
GR4
GR5
GR6
GR7
GR8
VEE GND VDD K1
LED 5
LED 4
LED 1
SW 1
D
IN
D
OUT
CLK
STB
V
DD
OSC
R
SW 2
SW 3
SW 4
LED 2
LED 3
K2 K3 K4
P in Na me I /O Description P i n N o.
S W 1 t o S W 4 I G ene r al P ur pos e In pu t P ins 1 to 4
DOUT O
Da ta O utp ut P in ( N- Cha nne l , O pen - Dr a i n)
Th i s pi n outp ut s serial da ta at the f al l i ng edge
of the shi ft cloc k ( sta rti ng f rom the l ower bi t) .
5
D IN I
D ata In pu t P in
Th i s pi n i npu ts serial da ta at the rising edge of
the shi ft cloc k ( sta rti ng f rom the l ower bi t)
6
N C - N o Co nne ct io n
CLK I
Cl oc k In pu t P in
Thi s pi n read s serial da ta at the rising edge an d
outputs data at the f al l i ng edge .
8
STB I
S erial I nte rfac e S trobe P in
Th e da ta i npu t af te r the S TB ha s f al l en i s
pr oc e s s e d as a c o mmand .
Wh en th i s pi n i s " HI GH ", C LK i s i gno r ed.
9
K 1 t o K 4 I
Ke y Da ta In pu t P ins
Th e da ta i npu tte d to thes e pi ns ar e l atc hed at
the end of the di spl ay cycle.
10 to
1 3
VDD - L ogi c P owe r S uppl y
1 4 , 3 3 ,
4 5
S G1 / K S1 t o S G1 2 / K S1 2 O
H igh - Vol ta ge Se gment Ou tp ut P ins
Al s o acts as the Ke y So ur c e
15 to
2 6
S G2 0 / G R9 to S G1 9 / G R1 0
S G1 8 / G R1 1 to S G1 3 / G R1 6
O Hi gh Vo l tag e Se gment/ G ri d Ou tp ut P ins
36 to
3 5
32 to
2 7
VEE - P ul l -D own L ev el 34
G R1 to G R8 O H igh - Vol ta ge G ri d O utp ut P ins
44 to
3 7
LE D1 to LE D5 O LE D O utp ut P in
50 to
4 6
GND - G round P in 51
OS C I
O sc illator In pu t P in
A resistor i s conne cted to th i s pin to dete rmi ne
the osci l l ation f requency
5 2
7
5-2 5-2