TDA5931-65 Datasheet, PDF (9/13 Pages) Siemens Semiconductor Group – Video IF Amplifier and Demodulator with Full-SCART

TDA 5931-65
Characteristics (cont’d)
Parameter
Symbol
Limit Values
Unit Test Condition
min. typ. max.
Intercarrier noise voltages ratio (weighted according CCIR 468) with parallel tank circuit 38.9 MHz,
SAW 361 D, f_TT = 5.5 MHz (– 13 dB), demod.: TBA 120
FuBk – test picture
FuBk – test picture
S/N
S/N
– ∆S/N 2
– ∆S/N
48
dB V_1/18 = 10 mVpp
FuBk mod.
17
dB V_1/18 = 10 mVpp
2.753 MHZ mod.
dB
with detuning
∆f = – 400 kHz
11
dB with detuning
∆f = + 400 kHz
Dyn. Output Resistance
Pos. video output
R₆
Neg. video output
R₄
Noise figure
F
V_1/18 = – 57 dBm =
+ 50 dB µV
R_G = 800 Ω
Video noise voltage ratio at
BT = 10 mVrms
0 dB = 700 mVrms BA
unweighted
S/N
weighted according to
CCIR Rec. 567-1
S/N
80
115 150 Ω
100 150 200 Ω
5
7
dB
50
55
dB
55
60
dB
Video Frequency Response
– 3 dB
– 12 dB
B_{3 dB}
8
B_{– 12 dB} 15
Residual Carrier Voltage at Video Output
f_PC = 10 mVr ms 38.9 MHz V₆
Fundamental wave
1. harmonic wave
V₆
f = 77.8 MHz
10
13
MHz
17
20
MHz
3.0 6.0 mV
0.3 0.6 mV
Semiconductor Group
39