21
70GS-61SC
QUICK REFERENCE DATA
SYMBOL
PARAMETER
CONDITIONS
MIN.
TYP.
MAX.
UNIT
V
P
supply voltage
note 1
4.75
5.00
5.50
V
I
P
supply current
52
61
70
mA
V
i(VIF)(rms)
VIF input signal voltage sensitivity
(RMS value)
−
1 dB video at output
−
60
100
µ
V
G
VIF(cr)
VIF gain control range
see Fig.10
60
66
−
dB
f
VIF
vision carrier operating frequencies
see Table 28
−
33.4
−
MHz
−
33.9
−
MHz
−
38.0
−
MHz
−
38.9
−
MHz
−
45.75
−
MHz
−
58.75
−
MHz
∆
f
VIF
VIF frequency window of digital
acquisition help
related to f
VIF
; see Fig.7
−
±
2.3
−
MHz
V
o(v)(p-p)
video output signal voltage
(peak-to-peak value)
normal mode; see Fig.9
1.7
2.0
2.3
V
trap bypass mode;
see Fig.9
0.95
1.10
1.25
V
G
dif
differential gain
“CCIR 17”; note 2
B/G standard
−
−
5
%
L standard
−
−
7
%
ϕ
dif
differential phase
“CCIR 17”
−
2
4
deg
B
v(
−
3dB)(trap)
−
3 dB video bandwidth including
sound carrier trap
C
L
< 20 pF; R
L
> 1 k
Ω
;
AC load; note 3
f
trap
= 4.5 MHz
3.95
4.05
−
MHz
f
trap
= 5.5 MHz
4.90
5.00
−
MHz
f
trap
= 6.0 MHz
5.40
5.50
−
MHz
f
trap
= 6.5 MHz
5.50
5.95
−
MHz
α
SC1
trap attenuation at first sound carrier
M/N standard
30
36
−
dB
B/G standard
30
36
−
dB
S/N
W
weighted signal-to-noise ratio of
video signal
see Fig.5; note 4
56
59
−
dB
PSRR
17
power supply ripple rejection at
pin 17
f
ripple
= 70 Hz; video signal;
grey level; positive and
negative modulation;
see Fig.8
20
25
−
dB
B
v(
−
1dB)
−
1 dB video bandwidth
C
L
< 20 pF; R
L
> 1 k
Ω
;
AC load; trap bypass mode
5
6
−
MHz
AFC
stps
AFC steepness
∆
I
21
/
∆
f
0.85
1.05
1.25
µ
A/kHz
V
o(AF)(rms)
audio output signal voltage at pin 8
(RMS value)
27 kHz FM deviation;
50
µ
s de-emphasis
430
540
650
mV
THD
audio
total harmonic distortion of audio
signal
27 kHz FM deviation;
50
µ
s de-emphasis
−
0.15
0.50
%
AM; m = 54%
−
0.5
1.0
%
ICs ADITIONAL INFORMATION: TDA9885 (IC201)
