STK301-220 Datasheet, PDF (1/8 Pages) Sanyo Semicon Device – 7-band, 2-channel Electronic Graphic Equalizer

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’s unique insulated metal
substrate technology (IMST) to the base.
Applications
• Car stereos
• Portable radio-cassette players
• Home stereos
Features
• All bands are set for L/R simultaneous 2 dB incremental
operation (typ).
• All bands are equipped with 13 positions and range
between +12 dB maximum boost to –12 dB maximum cut.
• Crossover frequencies include fo; 60 Hz, 150 Hz,
400 Hz, 1 kHz, 2.5 kHz, 6 kHz and 15 kHz.
• 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→LCD, LC7565→FLT, LED):
— One-touch up-down control of all band gains.
— Immediate recall of preferred frequency levels tailored
to suit musical selections. This is possible using preset
functions to retrieving items from one-touch memory.
— 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.
— Dual control lines permit mutual use with display
LSI and help to simplify wiring between
microcontroller and LSI.
• Minimal operating shock noise when boost or cut is used.
Package Dimensions
unit : mm
4143
[STK301-220]
Specifications
Maximum Ratings at Ta = 25°C, V_SS = 0 V
Parameter
Maximum supply voltage
Input voltage
Allowable power dissipation
Operating temperature
Storage temperature
Symbol
V_DD-V_EE max
V_CC1 max
V_CC2 max
V_I1
V_I2
Pd max
Topr
Tstg
CLK, DI, IN1, IN2
CLK, DI, IN1, IN2
Conditions
Ratings
Unit
16
V
±18 (36)
V
7
V
0 to V_CC2 + 0.3
V
V_EE – 0.3 to V_DD + 0.3
V
920 mW
–20 to +70
°C
–40 to +100
°C
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