TDA8191 Datasheet, PDF (3/6 Pages) STMicroelectronics – TV SOUND CHANNEL

TDA8191
ELECTRICAL CHARACTERISTICS (continued)
(Refer to fig. 1 ; VS = 24V, RL = 16Ω, Pin 11 floating, ∆f = ±50kHz, Vi = 1mV, fo = 5.5MHz, fm = 1kHz,
Tamb = 25^oC unless otherwise specified)
Symbol
V₉
R9
AMR
RI
C_I
V_{1 2}
Kv
Parameter
Recovered Audio Voltage (pin 9)
Deemphasis Resistance
Amplitude Modul. Rejection
Input Resistance (pin 2)
Input Capacitance (pin 2)
DCVC Reference Voltage
Volume Attenuation
∆K_V
∆Tj
PO
SVR
V₁₁
Volume Attenuation Thermal Drift
Output Power (d = 10%)
Supply Voltage Rej.
(Pin 17)
(Pin 9)
Function Switch.
- Television Broadc.
Reproduction
R₁₁
V_{1 0}
R10
CT
S+N
N
d
∆f
- Peritelevision Reproduction
Input Resistance
Input Voltage (d ≤ 2%)
Input Resistance
Crosstalk between Pins 9, 10
Signal to Noise Ratio
Distortion (P_O = 250mV)
Deviation Sens.
Test Conditions
V_C = 4.5V, ∆f = ± 15kHz
f = 20Hz to 20kHz
m = 0.3, VO = 4VRMS
∆f = 0
∆f = 0, V_C =4.5V
VC = 0.5V ; Fig. 2
VC = 4.5V ; Fig. 2
T_j = 300 to 380°K Fig. 3
VC = 4.5V
fripple = 100Hz
V_O = 4V_RMS ; V₁₁ = 12V
f = 20Hz to 20kHz
∆f = 0 ; VO = 4VRMS
VC = 0.5V ; VO = 4VRMS
Min.
200
500
45
5.6
80
Typ.
700
60
30
6
–
0.05
Max.
400
1000
6.2
1.0
– 0.1
Unit
mV_RMS
Ω
dB
kΩ
pF
V
dB
dB
dB/°C
3.5 4
W
20 26
dB
50 60
dB
0
2
V
or Pin 11 Floating
8
12
V
10
kΩ
0.5 2.0 V_RMS
10
kΩ
60
dB
60 70
dB
2
%
± 4 ± 10 kHz
Figure 1 : Test Circuit
VS
47 0µF
0 .1µF
IF
inp ut _Vi
51Ω
0 . 1µF
2
0 . 1µF
3
4
R1
270kΩ
4 . 7µF
18
1
5
TDA 8191
7
8
9
68 nF
10
11
68 pF
0.1µF
8.2pF
L1 : Qu = 80 @ f0 = 5.5MHz
L1
1µF
1µF
V11
SW
V1 0
OUT
IN
6
15
16
17
15kΩ
19
2 2µF
12
13
14
20 _270Ω
4.5kΩ
22µF
11kΩ
VC
24kΩ
47 0µF
V_o
220 nF
RL
22Ω
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