SGS Thomson Microelectronics TDA7339 Datasheet
3 BANDDIGITAL CONTROLLED AUDIOPROCESSOR
THREESTEREOINPUT
ONE RECORDOUTPUT
ONE STEREOOUTPUT
TWO INDEPENDENT VOLUME CONTROL IN
1.0dB STEPS
TREBLE, MIDDLE AND BASS CONTROL IN
1.0dB STEPS
ALL FUNCTIONS PROGRAMMABLE VIA SE-
2
RIAL I
DESCRIPTION
The TDA7339 is a volume and tone (bass , middle and treble) processor for quality audio application in car radioand Hi-Fi system.
Control is accomplished by serial I
processorinterface.
The AC signal setting is obtained by resistor networks and switches combined with operational
amplifiers.
CBUS
2
C bus micro-
TDA7339
PRODUCT PREVIEW
DIP28
ORDERING NUMBER: TDA7339
Thanks to the used BIPOLAR/MOS Technology,
Low Distortion, Low Noise and Low DC stepping
are obtained.
BLOCK DIAGRAM
3
x
IN1(L)
IN2(L)
IN3(L)
IN1(R)
IN2(R)
IN3(R)
2.2µF
C1
C2
C3
C4
C5
C6
2.2µF
2
4
5
27
25
24
3
x
1
V
S
R1
2.7K
C7
C8
TREBLE
TREBLE
C9
18nF
C11
18nF
5.6nF
REC OUT(L)
1st VOL
MUTE
MULTIPLEXER
1st VOL
MUTE
SUPPLY
16 28 21 26 23 22 20 19
CREFANAL.GND
REC OUT(R)
C
10µF
TREBLE(R) M OUT(R)M IN(R) B OUT(R)B IN(R)
REF
5.6nF
C10
22nF
M OUT(L)TREBLE(L) M IN(L) B OUT(L)B IN(L)
MIDDLE BASS
SERIAL BUSDECODE & LATCHES
MIDDLE BASS
C12
22nF
R2
2.7K
C13
100nF
C15
100nF
R3
2.7K
1097638
R4
5.6K
C14
100nF
SOFTMUTE
SOFTMUTE
C16
100nF
2nd VOL
2nd VOL
12
14
13
18
15
11
17
OUT L
SCL
SDA
ADDR
DIG.GND
CMUTE
OUT R
D94AU067C
BUS
22nF
C
SM
July 1999
This is preliminary information on anewproduct now in development. Detailsare subjectto change without notice.
1/12
TDA7339
ABSOLUTE MAXIMUM RATINGS
Symbol Parameter Value Unit
V
S
T
amb
T
stg
PIN CONNECTION
Operating Supply Voltage 10.5 V
Operating Ambient Temperature -40 to 85 °C
Storage Temperature Range -55 to 150 °C
1
VS
2
IN1L
TREBLE L
MINL
M OUT L
REC OUT L
BINL
B OUT L
CMUTE
OUT L
3
4
IN2L
5
IN3L IN3R
6
7
8
9
10
11
12
SDA
13
SCL
14
D95AU217A
28
27
26
25
24
22
21
20
19
18
17
16
15
CREF
IN1R
TREBLE R
IN2R
MINR23
M OUT R
REC OUT R
BINR
B OUT R
ADDR
OUT R
AGND
DIG GND
THERMAL DATA
Symbol Parameter Value Unit
R
th j-amb
Thermal ResistanceJunction-pins 65 °C/W
QUICK REFERENCE DATA
Symbol Parameter Min. Typ. Max. Unit
V
S
V
CL
THD Total Harmonic Distortion V = 1Vrms f = 1KHz 0.01 0.08 %
S/N Signalto Noise Ratio 106 dB
S
C
Supply Voltage 6 9 10 V
Max. input signal handling 2 Vrms
Channel Separation f = 1KHz 100 dB
1st and 2nd Volume Control 1dB step -47 0 dB
Bass, Middle and TrebleControl 1dB step -14 +14 dB
Mute Attenuation 100 dB
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TDA7339
ELECTRICAL CHARACTERISTICS
= 9V; RL= 10KΩ; f = 1KHz; all control = flat (G = 0); T
(V
S
25°C Referto the test circuit, unless otherwise specified.)
Symbol Parameter Test Condition Min. Typ. Max. Unit
INPUTS
R
in
Input Resistance 35 50 65 K
1st VOLUMECONTROL
C
RANGE
A
VMAX
A
A
V
step
E
E
mute
A
t
DC
Control Range 45 47 49 dB
Maximum Attenuation 45 47 49 dB
Step Resolution 0.5 1.0 1.5 dB
Attenuation Set Error G = 0to -24dB -1.0 1.0 dB
G = -24to -47dB -1.5 1.5 dB
Tracking Error G = 0to -24dB 1 dB
G = 24to -47dB 2 dB
Mute Attenuation 80 100 dB
DC Steps Adiacent AttenuationSteps 0 3 mV
From 0dB to A
VMAX
0.5 5 mV
2nd VOLUMECONTROL
C
RANGE
A
VMAX
A
A
V
step
E
A
E
t
MUTE
DC
Control Range 45 47 49 dB
Maximum Attenuation 45 47 49 dB
Step Resolution 0.5 1.0 1.5 dB
Attenuation Set Error G = 0to -24dB -1.0 1.0 dB
G = -24to -47dB -1.5 1.5 dB
Tracking Error G = 0to -24dB 1 dB
G = 24to -47dB 2 dB
Mute Attenuation 80 100 dB
DC Steps Adiacent AttenuationSteps 0 3 mV
From 0dB to A
VMAX
0.5 5 mV
BASS
C
RANGE
A
R
b
step
Internal Feedback Resistance 32 44 56 KΩ
Control Range ±11.5 ±14 ±16 dB
Step Resolution 0.5 1 1.5 dB
MIDDLE
C
RANGE
A
R
b
step
Internal Feedback Resistance 18 25 32 K
Control Range ±11.5 ±14 ±16 dB
Step Resolution 0.5 1 1.5 dB
TREBLE
C
RANGE
A
step
Control Range
13
±
14
±
15 dB
±
Step Resolution 0.5 1 1.5 dB
SUPPLY
V
S
I
S
SVR Ripple Rejection 60 90 dB
Supply Voltage(note1) 6 9 10.5 V
Supply Current 4 7 10 mA
amb
Ω
Ω
=
SOFT MUTE
A
MUTE
t
D
Mute Attenuation 45 60 dB
Delay Time CSM=22µF; 0 to 20dB;I = I
C
=22µF; 0 to 20dB;I = I
SM
MAX
MIN
0.8 1.5 2 ms
15 25 45 ms
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TDA7339
ELECTRICALCHARACTERISTICS
(continued)
Symbol Parameter Test Condition Min. Typ. Max. Unit
AUDIO OUTPUT
V
clip
R
Ol
R
O
V
DC
Clipping Level d = 0.3% 2 2.6 Vrms
Output Load Resistance 2 KΩ
Output Impedance 100 180 300 Ω
DC Voltage Level 3.8 V
GENERAL
e
NO
E
t
S/N Signal toNoise Ratio AllGains = 0dB; V
S
C
d Distortion A
Output Noise All Gains0dB(B=20to 20kHzflat) 5 15 µV
Total Tracking Error AV= 0to -24dB 0 1 dB
= -24to -47dB 0 2 dB
A
V
O
=1V
rms
106 dB
Channel Separation 80 100 dB
=0;Vin=1V
V
rms
0.01 0.08 %
BUS INPUTS
V
il
V
ih
I
in
V
O
NOTE 1: the deviceis functionallygood atVs =5V. Astep down, on VS, to 4V does’t resetthe device.
Input Low Voltage 1V
Input High Voltage 3 V
Input Current Vin= 0.4V -5 5 µA
Output Voltage SDA
IO= 1.6mA 0.4 0.8 V
Acknowledge
4/12
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