TDA7336 Datasheet, PDF (7/20 Pages) STMicroelectronics – STEREO PREAMP+ AMS+ DOLBY B* NOISE REDUCTION PROCESSOR

TDA7336
ELECTRICAL CHARACTERISTICS (continued)
DOLBY SECTION
Symbol
Parameter
Test Condition
B DEC 2 Decode Out
f = 500Hz; VI = -22.1dB
B DEC 3 Decode Out
f = 2KHz; VI = -18dB
B DEC 4 Decode Out
f = 5KHz; VI = -29.7dB
B DEC 5 Decode Out
NRl
Dolby ON Low Level Pin 19
f = 10KHz; VI = -29.6dB
NRh
Dolby OFF High Level Pin 19
GENERAL (PREAMPLIFIER + DOLBY)
DOLBY Min. Typ. Max. Unit
ON -26.5 -25 -23.5 dB
ON -26.5 -25 -23.5 dB
ON -41.5 -40 -38.5 dB
ON -41.5 -40 -38.5 dB
0
0.8
V
2
VS
V
Symbol
THD
Parameter
Total Harmonic Dist.
S/N
Signal to Noise Ratio
C_S
Channel Separation
CT
Channel Cross Talk
Test Condition
VO = 0dB; f = 1KHz Dolby OFF
VO = 0dB; f = 1KHz Dolby ON
VO = 0dB; f = 10KHz Dolby OFF
VO = 0dB; f = 10KHz Dolby ON
Rg = 600Ω; VO = 0dB;
Unweighted; Dolby OFF
Rg = 600Ω; VO = 0dB;
Unweighted; Dolby ON
Rg = 600Ω; VO = 0dB;
CCIR/ARM; Dolby OFF
Rg = 600Ω; VO = 0dB;
CCIR/ARM; Dolby ON
Rg = 600Ω; f = 1KHz Dolby OFF
Rg = 600Ω; f = 1KHz Dolby ON
Rg = 600Ω; f = 1KHz Dolby OFF
Rg = 600Ω; f = 1KHz Dolby ON
Min.
54
56
50
56
Typ.
0.02
0.05
0.03
0.08
63
70
63
72
64
70
70
75
Max.
0.1
0.1
Unit
%
%
%
%
dB
dB
dB
dB
dB
dB
dB
dB
Figure 2: Audio Music Sensor
AMS Gin 20
1K
100K
0.22µF
C8
RB
6
IN-L
23
IN-R
Rp20
Vs
+
R9
-
+
LIMITER
AMPLIFIER
SIGNAL DETECT.
COMPARATOR
Vth0
AMS th
Vs
NOR1
Q1
21
AMS OUT
POWER-ON
RESET
Q2
R
FF2
Q
S
COMP2
+
-
COMP1
Vth1
Q
S
FF1
Q
R
8 INTP
0.1µF
C7
R7
500K
PROGRAM
DETECTION TIME
22
7
AMS SW
C15
T1
9
INTS
R9
SPACE
C9
DETECTION
TIME
Vs
T2
D93AU051A
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