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TDA4670 Fiches technique(PDF) 8 Page - NXP Semiconductors |
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TDA4670 Fiches technique(HTML) 8 Page - NXP Semiconductors |
8 / 16 page 1996 Dec 11 8 Philips Semiconductors Product specification Picture Signal Improvement (PSI) circuit TDA4670 Colour-difference paths measured with transient times tr =tf =1 µs; tp H ≥ 1 µs; Vi = 1.33 V (p-p) on pins 3 and 7 and with burst key pulse tBK =4 µs Vi(CD)(p-p) ±(R − Y) input signal (peak-to-peak value; pin 3) 75% colour bar − 1.05 1.48 V ±(B − Y) input signal (peak-to-peak value; pin 7) 75% colour bar − 1.33 1.88 V input transient sensitivity V3,7/δt 0.15 −− V/ µs V3,7 internal clamping voltage level − 2.45 − V I3,7 input current outside clamping −−±1 µA during clamping ±100 −±190 µA C3,7 input capacitance − 612 pF V4,6 DC output voltage − 2 − V ∆V4,6 output offset voltage RS ≤ 300 Ω; note 1 −−±5mV during and after storage time −−±18 mV Vspike spurious spike signals on pins 4 and 6 RS ≤ 300 Ω; note 1 −−±30 mV I4,6 output current (emitter-follower with constant current source) source current −1 −− mA sink current 0.4 −− mA R4,6 output resistance −− 100 Ω Gv signal gain in each path Vo/Vi −1 0 +1 dB ∆Gv gain difference −(R − Y)/−(B − Y) − 0 ±0.3 dB LIN signal linearity for αmin/αmax; nominal signal Vi = 1.33 V (p-p) 0.90 −−− +3 dB signal Vi = 1.88 V (p-p) 0.65 −−− ∆Vo signal reduction at higher frequency (output signal ratio Vi/Vo) signal with tp H = 50 ns; tr =tf =1 µs −1.5 −− dB Sandcastle pulse, input voltage selectable via I2C-bus V17 input voltage threshold for H and V sync SC5-bit = 0 (+12 V) 1.1 1.5 1.9 V input voltage threshold for burst SC5-bit = 0 (+12 V) 5.5 6.5 7.5 V input voltage threshold for H and V sync SC5-bit = 1 (+5 V) 1.1 1.5 1.9 V input voltage threshold for burst SC5-bit = 1 (+5 V) 3.0 3.5 4.0 V R17 input resistance +12 V input level 30 40 50 k Ω +5 V input level 15 20 25 k Ω C17 input capacitance − 48pF tBK burst key pulse width 3.0 4.0 4.6 µs td leading edge delay for clamping pulse referenced to tBK − 1 −µs np number of required burst key pulses vertical blanking interval note 2 4 − 31 − SYMBOL PARAMETER CONDITIONS MIN. TYP. MAX. UNIT |
Numéro de pièce similaire - TDA4670 |
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Description similaire - TDA4670 |
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