TDA7336 Datasheet, PDF (6/20 Pages) STMicroelectronics – STEREO PREAMP+ AMS+ DOLBY B* NOISE REDUCTION PROCESSOR

TDA7336
ELECTRICAL CHARACTERISTICS (VS = 8.5V; f = 1KHz; R_g = 600Ω T_amb = 25°C; R11 = 43KΩ
all level referenced to -6dBm/400Hz, at Dout with NR SW OFF; unless otherwise specified
see application circuit of Fig. 1) NAB METAL position.
SUPPLY
Symbol
Parameter
VS
Supply Voltage
IS
Supply Current
Vref
Reference Voltage (pin 16)
VDC
SVR
DC Voltage pin 13 (R₁₁ = 43K)
Ripple Rejection
(Input Referred)
MUTEth
Mute Threshold
Pin 10
IMUTE
Mute Current
MUTEA Mute Attenuation
PREAMPLIFIER
Test Condition
V_ripple = 0.3Vrms
f_ripple = 1KHz
ON
OFF
Dolby OFF
Dolby ON
Min.
8
11
4
1.15
80
85
0
2.0
55
Typ.
8.5
18
4.3
1.25
90
95
10
65
Max.
10.5
26
4.6
1.35
0.8
VS
20
Unit
V
mA
V
V
dB
dB
V
V
µA
dB
RI
Input Resistance
II
Input Bias Current
GV
Closed Loop Gain
∆GV
Closed Loop Gain Match
RM
Resistance Metal Position
RN
Resistance Normal Position
eN
Total Input Noise
RO
Output Impedance
EQl
Normal Low Level (pin 28)
EQh
Metal High Level (pin 28)
∆R_M
Metal Resistance Matching
AUDIO MUSIC SENSOR
(pin 2, 27)
30
50
70
KΩ
10
µA
pin 3, 4 and 25, 26 shorted
32.5 35.5 38.5 dB
-1
1
dB
4.35 5.8 7.25 KΩ
50
160 300
Ω
Unw. B= 20Hz to20KHz Rg = 0Ω;
0.45
µV
Rg = 600Ω;
0.8
µV
A weighted
Rg = 600Ω;
0.5
µV
(Pin 5, 24)
0.9
1.2
1.7
KΩ
0
1.5
V
3.5
VS
V
–2
0
+2
%
IAMSOUT AMS Output Current
VAMSOUT AMS Output Low Level
R_P20
AMSswl
Input Impedance
AMS OFF Low Level
AMSswh AMS ON High Level
VTH1
Interprogram Threshold Voltage
VTH2
Interspace Threshold Voltage
AMSth AMS Threshold Level
IAMSsw AMS Switch pin Current
DOLBY SECTION
IAMOUT = 2mA
(pin 8)
(pin 9)
see note (3)
5
mA
200 800 mV
0.8
1.1
1.4
KΩ
0
0.8
V
2
VS
V
1.2 1.45 1.7
V
4
4.3
4.6
V
0.6
1
1.4
V
5
10
15
µA
GV
∆GV
RDI
S/H
R_DO
B DEC 1
Voltage Gain
Gain Matching
Dolby Input Res.
Signal Handling
Dolby Output Imp.
Decode Out
f = 1KHz;
(pin 6, 23)
VS = 8V; THD = 1%
(pin 12, 17)
f = 10KHz; VI = 0.4dB
OFF -1
0
1
dB
OFF -0.5
0.5 dB
46
63
KΩ
OFF 12
13
dB
100 200 300 Ω
ON -1.5 0
1.5 dB
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