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SL1461
2
ELECTRICAL CHARACTERISTICS
Tamb=–20°C to )80°C, VCC=)4.5V to )5.5V. These characteristics are guaranteed by either production test or design.
They apply within the specified ambient temperature and supply voltage unless otherwise stated.
Characteristics
Value
Units
Conditions
Characteristics
Min
Typ
Max
Units
Conditions
Supply current
36
40
mA
Operating frequency
300
800
MHz
Input sensitivity
–40
dBm
Preamp limiting
Input overload
0
dBm
VCO sensitivity (dF/dV)
25
32
39
MHz/V
Refer to application in Fig. 3a
VCO linearity
.25
%
Refer to application in Fig. 3a; with
13.5MHz p–p deviation
Phase detector gain
0.5
0.25
V/rad
V/rad
Differential loop filter
Single ended loop filter
Loop amplifier input
impedance
450
570
700
W
Single ended
Loop amplifier output
impedance
25
W
Single ended
Loop amplifier open loop gain
38
dB
Single ended
Loop amplifier gain bandwidth
product
240
MHz
Single ended
Loop amplifier output swing
1.2
Vp–p
Single ended
Video drive output impedance
55
75
95
W
Video drive;
Luminance nonlinearity
1.9
5
%
1KW load, See note 3 & 4
– differential gain
0.5
2.5
%
75
W load, See note 3 & 4
– differential phase
1.0
3
Degree
75
W load, See note 3 & 4
– intermodulation
–40
dB
See notes 1+3 & 4
– Signal/noise
66
72
dB
1KW load, See note 2 & 4
–Tilt
0.3
3
%
1KW load, See note 3 & 4
– baseline distortion
0.4
2
%
1KW load, See note 3 & 4
AGC output current
10
400
mA
Maximum load voltage drop 2V
AGC bias current
0
250
mA
AFC window current
0
400
mA
400
mA gives 1.5V deadband window
AFC charge pump current
50
mA
AFC leakage current
10
mA
With charge pump disabled
AFC output saturation voltage
0.4
V
AFC output enabled
Note 1. Product of input modulation f1 at 4.43MHz, 13.5MHz p–p deviation and f2 at 6MHz p–p deviation, (PAL chroma and
sound subcarriers).
Note 2. Ratio of output video signal with input modulation at 1MHz, 13.5MHz p–p deviation, to output rms noise in 6MHz
bandwidth with no input modulation.
Note 3
Input test signal pre–emphasised video 13.5MHz p–p deviation. Output voltage 600mV pk–pk.
Note 4
See page 3
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