TDA5950X Datasheet, PDF (8/11 Pages) Siemens Semiconductor Group – Video and Sound IF with FM-PLL Demodulator, AFC and V & S SCART

TDA 5950X
AC Characteristics (cont’d)
T_A = 0 to 70 ˚C; V_S = 5.0 V
Parameter
Symbol
Ripple rejection
Input impedance
RR_19/20
Z_18*)
Limit Values Unit
min. typ. max.
35 40
dB
50
kΩ
Test Condition
SCART-SWITCH
Input impedance
Gain of Video switch
Aux. V_IN-video output
Video_IN-aux. output
Video_IN-video output
f_mod = 5 MHz
– 3 dB video bandwidth
– 3 dB video bandwidth
Cross talk attenuation
f_mod = 5 MHz
Intermodulation
Suppression of video
signal harmonics
Signal to noise ratio
(weighted)
Ripple rejection
on pin 7 and 8
Max. input current
Z₁₃
G_9-8
G_13-7
G_13-8
B₇
B₈
a_9-8
α_7/8
S/N_7/8
RR_7/8
I₉
1 || 2
kΩ || pF
0.9 1
1.1
0.9 1
1.1
0.9 1
1.1
8 10
8 10
50
54 60
35 40
MHz
MHz
dB
dB
dB
C_L < 20 pF, R_L > 1 kΩ
C_L < 50 pF, R_L > 1 kΩ
V₄ = 0 V
f_{1.07 MHz} = f_SC – f_CC
56 60
dB
CCIR – 567
35 40
dB
0.5 1
µA
f_Vs = 0…100 kHz
AFC
AFC-control steepness
∆I₁₀/∆f
0.6 0.8
1.0 µA/kHz
Tuner AGC
Sink current
I₁
Threshold range for del. V_IF
Tuner-AGC
0
2.5 3.5
50
10 µA
mA
5
mV
mV
no tuner gain reduction
max. tuner gain reduction
R₂ = 4.7 kΩ
R₂ = 0 Ω
*) Design hints
Semiconductor Group
8