SGS Thomson Microelectronics TDA7316D, TDA7316 Datasheet
TDA7316
FOURBANDSDIGITAL CONTROLLED GRAPHIC EQUALIZER
VOLUMECONTROLIN 0.375dBSTEP
FOUR BANDS STEREO GRAPHIC EQUAL-
IZER
CENTER FREQUENCY, BANDWIDTH, MAX
BOOST/CUT DEFINED BY EXTERNAL COMPONENTS
±14dB CUT/BOOSTCONTROL IN 2dB/STEP
ALL FUNCTIONS PROGRAMMABLE VIASE-
RIALBUS
VERYLOW DISTORTION
VERY LOW NOISE AND DC STEPPING BY
USE OF A MIXED BIPOLAR/CMOS TECHNOLOGY
DESCRIPTION
The TDA7316 is a monolithic, digitally controlled
graphicequaliz errealizedin BiCMO Smixed technology. The stereosignal,beforeanyfilteri ng,canbe at-
tenuated down to -17.625dB in 0.375dB step.
All the functions can be programmed via serial
bus making easy to build aµPcontrolledsystem.
Signalpath is desi gnedfor very low noiseanddistortion.
November 1999
SO28
ORDERING NUMBER: TDA7316
BLOCK DIAGRAM
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ABSOLUTE MAXIMUM RATINGS
Symbol Parameter Value Unit
V
S
Supply Voltage 10.2 V
T
op
Operating Temperature Range -40 to +85 °C
T
stg
Storage Temperature Range -55 to +150 °C
R
tjvins
Thermal Resistance Junction pins max 85
°
C/W
PIN CONNECTION
ELECTRICAL CHARACTERISTICS (T
amb
=25°C, VS= 9V, RL= 10KΩ,Rg= 600Ω, f = 1KHz VIN=
1Vrms, all controlsin flat position(AV = 0dB) unlessotherwise specified).
Symbol Parameter Test Condition Min. Typ. Max. Unit
SUPPLY
V
S
Supply Voltage 6 9 10 V
I
S
Supply Current 8 14 20 mA
SVR Ripple Rejection 60 80 dB
TDA7316
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ELECTRICALCHARACTERISTICS (continued)
Symbol Parameter Test Condition Min. Typ. Max. Unit
INPUT
R
I
Input Resistance 20 30 40 KΩ
V
IN max
Max Input Signal THD = 0.3% 2.0 2.5 V
RMS
IN
S
Input Separation(1) 80 100 dB
VOLUMECONTROL
C
RANGE
Control Range 17.625 dB
A
VMIN
Min. Attenuation -0.5 0 0.5 dB
A
VMAX
Max. Attenuation 16.7 17.625 18.6 dB
A
STEP
Step Resolution 0.175 0.375 0.575 dB
E
A
Attenuation Set Error -1.0 1 dB
E
T
Tracking Error 0.5 dB
V
DC
DC Steps adjacent attenuation steps 0 3.0 mV
GRAPHIC EQUALIZER
THD Distortion 0.01 0.1 %
C
s
Channel Separation 80 100 dB
e
NO
Output Noise BW = 20Hz to 20KHz
flat, AV = 0dB
820µV
A curve 6
µ
V
BW = 20Hz to 20KHz AV = 0dB
All bands = max. boost
All bands = max. cut
24
6
µV
µ
V
S/N Signal to Noise Ratio A
V
= 0dB; V
ref
=1V
RMS
100 dB
B
step
Step Resolution 1 2 3 dB
C
RANGE
Control Range max boost/cut ±12 ±14 ±16 dB
VDC DC Steps Adiacent Control Steps 0.5 3 mV
AUDIO OUTPUTS
V
O
Output Voltage 2 2.5 V
RMS
R
L
Output LoadResistance 2 KΩ
C
L
Output LoadCapacitance 10 nF
R
O
Output Resistance 5 10 20
Ω
V
OUT
DC Voltage Level 4.2 4.5 4.8 V
BUS INPUTS
V
IL
Input Low Voltage 1V
V
IH
Input High Voltage 3 V
I
IN
Input Current -5 +5
µ
A
V
O
Output VoltageSDA
Acknowledge
IO= 1.6mA 0.4 V
ADDRESSPIN (Internal 50KΩ pull down resistor)
V
IL
Input Low Voltage 1V
V
IH
Input High Voltage VCC-1V V
NOTE1: The selected input is grounded thre the 2.2µF capacitor
TDA7316
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