TDA3853T Datasheet, PDF (7/18 Pages) NXP Semiconductors – TV IF amplifier and demodulator with TV-identification

Philips Semiconductors
TV IF amplifier and demodulator with
TV-identification
Preliminary specification
TDA3853T
CHARACTERISTICS
V_P = 5 V; T_amb = 25 °C, f_VC = 38.9 MHz; V_iIF = 10 mV rms; DSB video modulation; sync level for B/G.
Measurements taken in Fig.3 without notch components and video signal according to Fig.4 unless otherwise specified.
SYMBOL
PARAMETER
V_P
supply voltage range (pin 15)
I_P
supply current
Standard set inputs (Table 1)
V_IL
input voltage LOW, pins 5 and 7
Vision IF input (pins 1-20)
V_i
input signal sensitivity (RMS value)
maximum input signal (RMS value)
G_v
IF gain control range
B
IF bandwidth
R_i
input resistance
C_i
input capacitance
V_I
DC voltage on pins 1 and 20
Synchronous demodulator (pins 10 and 11)
V_{o ref}
picture carrier amplitude, pins 10-11
(peak-to-peak value)
R_10-11
R_{L 10-11}
Q_L
V_{10, 11}
integrated operating resistance
load resistance
load Q-factor of resonance circuit; note 2
DC voltage
Composite video output (pin 14)
V_o
output signal (peak-to-peak value)
V₁₄
sync level
ultra-white level
upper video clipping level
lower video clipping level
R₁₄
output resistance
I₁₄
output current
B
−1 dB video bandwidth
−3 dB video bandwidth
RR
ripple rejection on pin 14
CONDITIONS
MIN.
4.75
−
TYP.
5
46
0
−
−1 dB video
−
70
+1 dB video; note 1 100 −
Fig.6
63
66
−3 dB
−
80
−
2
−
1.5
−
2.50
−
1.6
−
12
tbn −
no notch components 55
60
−
2.8
0.9
−
−
−
−
−
DC and AC
−
C₁₄ < 20 pF
tbn
C₁₄ < 20 pF
tbn
f_ripple = 70 Hz; note 3 tbn
1.0
1.5
2.63
4.3
0.3
−
−
10
14
30
MAX.
6
55
UNIT
V
mA
0.8
V
100
µV
−
mV
−
dB
−
MHz
−
kΩ
−
pF
−
V
−
V
−
kΩ
−
kΩ
−
−
V
1.1
V
−
V
−
V
−
V
−
V
10
Ω
±1
mA
−
MHz
−
MHz
−
dB
January 1992
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