TDA5930-5 Datasheet, PDF (8/18 Pages) Siemens Semiconductor Group – Video IF Amplifier and Demodulator

TDA 5930-5
Characteristics (cont’d)
T_A = 25 ˚C
Parameter
Symbol
Limit Values
Unit Test Condition
min. typ. max.
Design Notes (no 100 % final test) (cont’d)
Intercarrier noise voltage ratio (weighted according CCIR 468) (figure 13) with parallel tank
circuit; 38.9 MHz, SAW 361 D, f_SC = 5.5 MHz (– 13 dB), demodulator: TBA 120 U
S/N
48
dB V_1/16 = 10 mVpp
FuBK mod.
S/N
17
dB V_1/16 = 10 mVpp
2.753 MHz mod.
FuBK-test chart
– ∆S/N
2
dB with detuning
FuBK-test chart
– ∆S/N
11
∆f = – 400 kHz
dB with detuning
∆f = + 400 kHz
Dyn. output resistance
pos. video output
neg. video output
R₁₁
80
115 150 Ω
R₁₂
100 150 200 Ω
Noise figure (figure 14)
F
V_1/16 = – 45 dBm = + 62 dBµV
R_GEN = 800 Ω
5
7
dB
Video noise voltage ratio (figure 15) with PC = 10 mVrms
0 dB = 700 mVpp BA
unweighted
S/N
50
55
dB
weighted according to
CCIR Rec. 567-1
S/N
55
60
dB
Video frequency response
(figure 16)
– 3 dB
– 12 dB
B_{– 3 dB} 8
B_{– 12 dB} 15
Residual carrier voltage
at video output PC = 10 mVrms
Fundamental wave
f = 38.9 MHz
V₁₁
1. harmonic wave
f = 77.8 MHz
V₁₁
10
13
MHz
17
20
MHz
3.0 6.0 mV
0.3 0.6 mV
Semiconductor Group
20