TDA6800 Datasheet, PDF (4/10 Pages) NXP Semiconductors – Video modulator circuit

Philips Semiconductors
Video modulator circuit
Product specification
TDA6800
TDA6800T
CHARACTERISTICS
V_P = 5 V; T_amb = 25 °C; measured in Fig.1; unless otherwise specified
PARAMETER
SYMBOL
MIN.
Supply voltage range
Supply current consumption
Video input voltage
Input impedance
Voltage (d.c.) at video
V_5-4
4,5
I₅
−
V_8(p-p)
−
R₈
30
input (clamp voltage)
Voltage (d.c.) at
V₈
−
sound input
V₁
−
Output voltage f = 50 MHz; R_L = 75 Ω
V_6-7
−
Output voltage f = 600 MHz; R_L = 75 Ω
V_6-7
−
Differential gain
∆_G
−
Differential phase
∆_φ
−
Intermodulation
(1,1 MHz) (note 1)
−
Frequency shift
V_b = 5%, f = 600 MHz
Frequency shift
∆_f
−
V_b = 5%, f = 800 MHz
Frequency drift
∆_f
−
25 to 40 °C
Frequency drift
∆_f
−
15 to 55 °C
∆_f
−
Positive modulation
(see Fig.3)
Residual carrier voltage
Cross modulation (note 2)
V_r
−
α
−
Notes
1. Input signal: d.c. 0,45 V (V_8-4 = 1,85 V)
4,4 MHz; input voltage (p-p) = 0,6 V
5,5 MHz; input voltage (p-p) = 1,26 V
measured with respect to picture carrier, at f = 600 MHz.
2. Input signal: d.c. 1 V (V_8-4 = 3,5 V)
5,5 MHz AM modulated, f_m = 100 kHz
m = 0,8; input voltage (p-p) = 2,27 V (including modulation)
measured with respect to the picture carrier, at f = 600 MHz.
TYP.
−
9
1
−
MAX.
5,5
13
−
−
1,4
−
2,5
−
13
−
10
−
−
10
−
10
−80
−60
−
100
tbf
−
−
100
−
300
−
2,5
0,1
0,25
UNIT
V
mA
V
kΩ
V
V
mV
mV
%
deg.
dB
kHz
kHz
kHz
kHz
%
%
March 1986
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