April 1985 4
Philips Semiconductors Product specification
I.F. amplifier and demodulator for
multistandard TV receivers TDA2549RATINGS
Limiting values in accordance with the Absolute Maximum System (IEC 134)
CHARACTERISTICS (measured in fig.5)
VP= 12 V; Tamb =25°C
Supply voltage (pins 13 and 21) VP13,8 V
Storage temperature range Tstg −25 to +125 °C
Operating ambient temperature range Tamb −25 to +70 °C
PARAMETER SYMBOL MIN. TYP. MAX. UNIT
Supply voltage range VP10,8 12 13,2 V
Supply current (pins 13 and 21) IP−82 −mA
I.F. input signal for Vo=2 V
(between pins 6 and 7) Vi=V
6-7 −50 150 µV
Input impedance (differential) |Z6-7|−2−kΩ
Input capacitance (differential) C6-7 −2−pF
Zero single output level
positive modulation V22-3 1,6 2 2,3 V
negative modulation V22-3 3,7 4 4,3 V
Top sync output level V22-3 1,7 2 2,3 V
Gain control range Gv50 74 −dB
Signal-to-noise ratio at Vi= 10 mV (note 1) S/N 50 57 −dB
Maximum video output amplitude for positive
modulation (peak-to-peak value) V22-3(p-p) 4,5 −−V
Bandwidth of video amplifier (3 dB) B −5,5 −MHz
Differential gain at Vo=2V dG −410%
Differential phase at Vo=2 V dϕ−210%
Residual carrier signal (r.m.s. value) V24-3(rms) −10 20 mV
Residual second harmonic of carrier signal
(r.m.s. value) V24-3(rms) −20 60 mV