HT8950 データシートの表示（PDF） - Holtek Semiconductor
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HT8950 Datasheet PDF : 10 Pages
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Block Diagram
HT8950/HT8950A
T G U T G D V IB R O B
O SC1
O SC2
F V IB
AO
A IN
VREF
O s c illa to r
G e n e ra to r
T im e B a s e
G e n e ra to r
C o n tro l
C ir c u it
P ow erO n
C ir c u it
A /D
C o n v e rte r
SRAM
L a tc h
D /A
C o n v e rte r
TS LA M P
SW 0
SW 1
SW 2
A U D IO
VSS
VDD
Pad Coordinates
TG U 1
TG D 2
ROB 3
SW 0 4
SW 1 5
SW 2 6
VSS 7
18
17
16 15
14 TS
13 V R E F
( 0 ,0 )
8
9
1 2 A U D IO
11 LA M P
10
Pad
No.
X
1 -957.0
2 -957.0
3 -957.0
4 -957.0
5 -957.0
6 -957.0
7 -962.0
8 -161.5
9 200.5
Unit: mm
Y
720.5
423.5
210.0
-87.0
-299.5
-596.5
-815.0
-747.5
-747.5
Pad
No.
X
Y
10 732.0 -774.0
11 984.0 -675.0
12 956.5 -400.0
13 956.5 374.5
14 956.5 671.5
15 530.5 765.5
16 345.50 765.5
17 -33.50 765.5
18 -287.50 765.5
Chip size: 2350´2080 (mm)2
The IC substrate should be connected to VSS in the PCB layout artwork.
Pin Description (HT8950)
Pin No. Pin Name
1~3
SW0~SW2
I/O
Internal
Connection
Description
I
Pull-High Function setting pin (for electronic setting)
4
VSS
5
AO
6
AIN
I
¾
Negative power supply, ground
O
¾
Internal amplifier output
I
¾
Internal amplifier input (inverted)
7
VDD
O
¾
Positive power supply
8
LAMP
O
NMOS
Open Drain
Lamp output (the brightness changes with the voice volume)
Rev. 1.10
2
November 16, 2006
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