Ordering number : EN4793A
Thick-Film Hybrid IC
STK301-220
7-band, 2-channel Electronic Graphic Equalizer
Overview
The STK301-220 is a hybrid IC (HIC) for electronically
controlled graphic equalizer applications and is equipped
with on-chip electronic volume control for 7-band, 2-
channel graphic equalization, thereby permitting one-
touch up-down control of all band gains. The STK301-
220 is a hybrid IC which combines SC system and
photoresist techniques with folded board construction
while incorporating Sanyo鈥檚 unique insulated metal
substrate technology (IMST) to the base.
Applications
鈥?Car stereos
鈥?Portable radio-cassette players
鈥?Home stereos
鈥?One-touch up-down control of all band gains.
鈥?Immediate recall of preferred frequency levels tailored
to suit musical selections. This is possible using preset
functions to retrieving items from one-touch memory.
鈥?Such functions as setting all bands to 0 dB (flat
function), or switching frequency characteristics
from 0 dB to center (reverse function) may be
simply performed with supported software.
鈥?Dual control lines permit mutual use with display
LSI and help to simplify wiring between
microcontroller and LSI.
鈥?Minimal operating shock noise when boost or cut is used.
Package Dimensions
unit : mm
4143
[STK301-220]
Features
鈥?All bands are set for L/R simultaneous 2 dB incremental
operation (typ).
鈥?All bands are equipped with 13 positions and range
between +12 dB maximum boost to 鈥?2 dB maximum cut.
鈥?Crossover frequencies include fo; 60 Hz, 150 Hz,
400 Hz, 1 kHz, 2.5 kHz, 6 kHz and 15 kHz.
鈥?The following features can be made available with an
electronic graphic equalizer system which incorporates
the 3-IC construction consisting of the STK301-220, a
controller (universal microcontroller) along with the
display LSI (LC75821鈫扡CD, LC7565鈫扚LT, LED):
Specifications
Maximum Ratings
at Ta = 25擄C, V
SS
= 0 V
Parameter
Symbol
V
DD
-V
EE
max
Maximum supply voltage
V
CC
1 max
V
CC
2 max
Input voltage
Allowable power dissipation
Operating temperature
Storage temperature
V
I
1
V
I
2
Pd max
Topr
Tstg
CLK, DI, IN1, IN2
CLK, DI, IN1, IN2
Conditions
Ratings
16
鹵18 (36)
7
0 to V
CC
2 + 0.3
V
EE
鈥?0.3 to V
DD
+ 0.3
920
鈥?0 to +70
鈥?0 to +100
Unit
V
V
V
V
V
mW
擄C
擄C
SANYO Electric Co.,Ltd. Semiconductor Bussiness Headquarters
TOKYO OFFICE Tokyo Bldg., 1-10, 1 Chome, Ueno, Taito-ku, TOKYO, 110 JAPAN
N3096HA (OT)/82294TH (OT) 5-3398 No. 4793-1/8
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