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E-TDA7342NTR

P1-P3P4-P6P7-P9P10-P12P13-P15P16-P18P19-P20
List of figures TDA7342
4/20
List of figures
Figure 1. Block diagram . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 5
Figure 2. Pin connection (top view) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 5
Figure 3. Data Validity on the I2C BUS . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 11
Figure 4. Timing Diagram of I2C BUS . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 11
Figure 5. Acknowledge on the I2C BUS . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 11
Figure 6. Interface protocol . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 12
Figure 7. LQFP32 Mechanical Data & Package Dimensions . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 18
TDA7342 Block diagram and pin description
5/20
1 Block diagram and pin description
1.1 Block diagram
Figure 1. Block diagram
1.2 Pin description
Figure 2. Pin connection (top view)
13
12
10
11
L1
L2
L3
L1
L2
L3
M
7
8
5
R1
R2
R3
R1
R2
R3
M
M
CD GND
6
INPUT
SELECTOR
+ GAIN
LEFT
INPUTS
CD
RIGHT
INPUTS
SUPPLY
30 31 29
ZERO
CROSS +
MUTE
SOFT
MUTE
OUT(L) IN(L)
16 15
LOUD+
VOL
ZERO
CROSS +
MUTE
LOUD+
VOL
BASS
BASS
LOUD(L)
9
TREBLE
TREBLE
10μF C9
314
CSMOUT(R)CREF
IN(R)
2 4
LOUD(R)
BOUT(L)
BIN(L)
18 17
BOUT(R) BIN(R)
20 19 1
TREBLE(R)
SPKR
ATT
MUTE
SPKR
ATT
MUTE
SPKR
ATT
MUTE
SPKR
ATT
MUTE
TREBLE(L)
32
23
28
27
26
24
25
22
OUT
LEFT FRONT
OUT
LEFT REAR
SCL
SDA
DIGGND
OUT
RIGHT FRONT
OUT
RIGHT REAR
D94AU104B
BUS
SERIAL BUS DECODER + LATCHES
MONO INPUT
C1
C2
C6
C3
C7
C8
C4
C5
C10
C12
47nF
CSM
47nF
C14
100nF
C15
100nF
4.7K
C16
2.7nF
C19 2.7nFC18
100nF
C17 100nF
C13 47nF
C11
R2
4.7K
21
SM
V
S
R1
1
2
3
5
6
4
7
8
11 12 13 14 15 16
32
30
31 29 28 27 26 25
19
18
17
24
23
22
20
21
IN R2
IN R3
LOUD R
IN R
TR R
OUT R
IN R1
MONO
LOUD L
IN L3
CD GND
IN L2
IN L1
CSM
IN L
OUT L
TR L
V
S
GND
SM
CREF
SCL
SDA
DIG GND
BIN R
BOUT L
BIN L
OUT LF
OUT RF
OUT LR
BOUT R
OUT RR
D94AU105A
910
Electrical specifications TDA7342
6/20
2 Electrical specifications
2.1 Absolute maximum ratings
2.2 Quick reference data
2.3 Thermal data
Table 1. Absolute Maximum Ratings
Symbol Parameter Value Unit
V
S
Operating supply voltage 10.5 V
T
amb
Operating ambient temperature -40 to 85 C
T
stg
Storage temperature range -55 to 150 C
Table 2. Quick reference data
Symbol Parameter Min. Typ. Max. Unit
V
S
Supply voltage 6 9 10.2 V
V
CL
Max. input signal handling 2.1 2.6 Vrms
THD Total harmonic distortion V = 1Vrms f = 1KHz 0.01 0.08 %
S/N Signal to noise ratio 106 dB
S
C
Channel separation 100 dB
Volume control 0.3dB step -59.7 20 dB
Treble control 2dB step -14 +14 dB
Bass control 2dB step -10 +18 dB
Fader and balance control 1.25dB step -38.75 0 dB
Input gain 3.75dB step 0 11.25 dB
Mute attenuation 100 dB
Table 3. Thermal data
Symbol Parameter Value Unit
R
th j-amb
Thermal resistance junction to pins 150 C/W
P1-P3P4-P6P7-P9P10-P12P13-P15P16-P18P19-P20

E-TDA7342NTR

Mfr. #:
Buy E-TDA7342NTR
Manufacturer:
STMicroelectronics
Description:
IC AUDIO PROCESSOR 32-LQFP
Lifecycle:
New from this manufacturer.
Delivery:
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