tda7468 STMicroelectronics, tda7468 Datasheet - Page 4

• Manufacturer Part Number: tda7468
• Description: Two Bands Digitally Controlled Audio Processor With Bass Alc Surround
• Manufacturer: STMicroelectronics

TDA7468D
ELECTRICAL CHARACTERISTICS
(refer to the test circuit T
specified)
4/22
SUPPLY
INPUT STAGE
MIC
SURROUND
VOLUME CONTROL
C
C
A
Crosstal
Symbol
A
Match1
A
Match2
A
A
A
MIX
G
G
M
G
G
M
G
G
G
G
G
RANGE1
RANGE2
VMAX1
G
SVR
VMAX1
VMAX2
VMAX2
V
G
STEP1
STEP2
R
S
R
R
inmax
inmax
V
ixmax
buffer
inmin
inmin
mic1
mic2
mic3
min4
ixmin
I
step
k
S
CL
inV
IN
IN
IN
S
in
mic
+
Supply Voltage
Supply Current
Ripple Rejection
Input Resistance
Clipping Level
Input Separation
Minimum Input Gain
Maximum Input Gain
Step Resolution
Input Resistance
Mic Input Gain 1
Mic Input Gain 2
Mic Input Gain 3
Mic Input Gain 4
Mixing Rate
Input Resistance
Minimum Input Gain
Maximum Input Gain
Inverting Gain
Minimum Mixing Rate
Maximum Mixing Rate
Crosstalk of Mux Output to 100%
IS
Buffer Gain
Vol 1 Control Range
Vol 1 Max. Attenuation
Vol 1 Step Resolution
Matching
Vol 2 Control Range
Vol 2 Max. Attenuation
Vol 2 Step Resolution
Matching
Vol 1 + Vol 2 Max Attenuation
Parameter
amb
= 25°C, V
S
THD = 0.3%
= 9V, f = 1KHz all controls flat (G = 0dB), unless otherwise
Test Condition
Min.
0.5
60
35
80
35
35
40
61
22
-1
-1
5
2
7
Typ.
TBD
TBD
100
100
2.5
90
50
14
50
14
10
50
50
12
63
63
24
24
84
-1
9
9
0
2
6
0
0
0
6
1
8
Max.
1.5
10
65
65
65
65
26
1
1
9
V
Unit
mA
KΩ
KΩ
KΩ
dB
dB
dB
dB
dB
dB
dB
dB
dB
dB
dB
dB
dB
dB
dB
dB
dB
dB
dB
dB
dB
dB
%
%
%
rms
V