TDA4340X Datasheet, PDF (10/15 Pages) Siemens Semiconductor Group – Stereo Decoder/Noise Blanker

TDA 4340X
3.3 AC/DC Characteristics (cont’d)
V_S = 10 V, T_A = 25 °C
Parameter
Symbol
Limit Values Unit
min. typ. max.
Test Condition
Control Range (osc. OFF)
Minimum
τ_{AM min}
13
15
17
µs
Maximum
τ_{AM max}
35
40
45
µs
V₁₇ = 3 V, V₁₅ = 6 V, V₇ = 1 V
C_deemph = 6.8 nF
V₁₇ = 3 V, V₁₅ = 0 V, V₇ = 1 V
C_deemph = 6.8 nF
Stereo/Mono Blend Control
Channel separation V₁₆
Channel separation V₁₆
Reference voltage V₁₇
V₁₇ – V₁₇ – V₁₇ – mV
140 115 90
V₁₇ – V₁₇ – V₁₇ – mV
190 170 150
0.5
4.5 V
15 dB sep.
6 dB sep.
Oscillator
Max. osc. frequency f_{osc max}
Min. osc. frequency f_{osc min}
VCO gain
∆f/∆V₁
Oscillator voltage V_{2 DC}
Oscillator swing
V_{2 AC}
0.7
– 2.0
– 13
3
800
1.0
– 1.0
– 10
4
1100
2.0
– 0.7
–7
5
1400
%
%
kHz/V
V
mVpp
100% × (f_max/456 kHz – 1)
100% × (f_min/456 kHz – 1)
PLL
PD gain
∆i/∆Φ¹⁾ 5
7.0 9
µA/rad V_pilot = 54 mVrms
Noise Detector
Input resistance R₆
75
Input high-pass filter f_{in, 6}
80
Trigger threshold V_{6 min}
Trigger threshold V_{6 dyn}
Maximum noise
mean value
V_6maxmean
100 135 kΩ
100 120 kHz – 3 dB
10
mVrms V₈ = V₈ (V_{6 mean} = 0),
f₆ = 200 kHz
160
mVrms V₈ = V₈ (V_{6 mean} = 50 mVrms),
f₆ = 200 kHz
80
mVrms f₆ = 200 kHz
Semiconductor Group
10
04.96