Datasheet

TDA7468
4/23
ELECTRICAL CHARACTERISTICS
(refer to the test circuit T
amb
= 25°C, V
S
= 9V, f = 1KHz all controls flat (G = 0dB), unless otherwise
specified)
Symbol Parameter Test Condition Min. Typ. Max. Unit
SUPPLY
V
S
Supply Voltage 5 9 10 V
I
S
Supply Current 9 mA
SVR Ripple Rejection 60 90 dB
INPUT STAGE
R
IN
Input Resistance 35 50 65 KΩ
V
CL
Clipping Level THD = 0.3% 2 2.5
Vrms
S
IN
Input Separation 80 100 dB
G
inmin
Minimum Input Gain -1 0 1 dB
G
inmax
Maximum Input Gain 14 dB
G
step
Step Resolution 2 dB
MIC
R
IN
Input Resistance 35 50 65 KΩ
G
mic1
Mic Input Gain 1 14 dB
G
mic2
Mic Input Gain 2 10 dB
G
mic3
Mic Input Gain 3 6 dB
G
min4
Mic Input Gain 4 0 dB
MIX
mic
Mixing Rate 50 %
SURROUND
R
in
Input Resistance 35 50 65 KΩ
G
inmin
Minimum Input Gain -1 0 1 dB
G
inmax
Maximum Input Gain 12 dB
G
inV
Inverting Gain -1
M
ixmin
Minimum Mixing Rate 0 %
M
ixmax
Maximum Mixing Rate 100 %
Crosstal
k
Crosstalk of Mux Output to 100%
IS
40 dB
G
buffer
Buffer Gain 6dB
VOLUME CONTROL
C
RANGE1
Vol 1 Control Range 63 dB
A
VMAX1
Vol 1 Max. Attenuation 61 63 65 dB
A
STEP1
Vol 1 Step Resolution 0.5 1 1.5 dB
Match1 Matching TBD dB
C
RANGE2
Vol 2 Control Range 24 dB
A
VMAX2
Vol 2 Max. Attenuation 22 24 26 dB
A
STEP2
Vol 2 Step Resolution 7 8 9 dB
Match2 Matching TBD dB
A
VMAX1
+
A
VMAX2
Vol 1 + Vol 2 Max Attenuation 84 dB