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AK4702 Datasheet(PDF) 11 Page - Asahi Kasei Microsystems |
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AK4702 Datasheet(HTML) 11 Page - Asahi Kasei Microsystems |
11 / 38 page ASAHI KASEI [AK4702] MS0187-E-00 2002/11 - 11 - FILTER CHARACTERISTICS (AUDIO) (Ta = 25 °C; VP=11.4∼12.6V, VD = 4.75∼5.25V, VVD1=VVD2 = 4.75∼5.25V; fs = 48kHz; DEM0 = “1”, DEM1 = “0”) Parameter Symbol min typ max Units Digital filter Passband ±0.05dB (Note: 13) -6.0dB PB 0 - 24.0 21.77 - kHz kHz Stopband (Note: 13) SB 26.23 kHz Passband Ripple PR ± 0.06 dB Stopband Attenuation SA 54 dB Group Delay (Note: 14) GD - 19.1 - 1/fs Digital Filter + LPF Frequency Response 0 ∼ 20.0kHz FR - ± 0.5 - dB Note: 13. The passband and stopband frequencies scale with fs (system sampling rate). ex.) PB=0.4535×fs (@ ±0.05dB), SB=0.546×fs. Note: 14. The calculating delay time which occurred by digital filtering. This time is from setting the 16/18bit data of both channels to input register to the output of analog signal. ANALOG CHARACTERISTICS (VIDEO) (Ta = 25 °C; VP=12V, VD = 5V; VVD1=VVD2 = 5V; VVOL1/0= “00” unless specified.) Parameter Conditions min typ max Units Sync tip clamp voltage at output 0.7 V Chrominance bias voltage at output 2.2 V Gain Input=0.3Vp-p, 100kHz 5.5 6 6.5 dB VVOL1/0= “00” 5.5 6 6.5 dB VVOL1/0= “01” 6.7 7.2 7.7 dB VVOL1/0= “10” 7.7 8.2 8.7 dB RGB Gain Input=0.3Vp-p, 100kHz VVOL1/0= “11” 8.6 9.1 9.6 dB Interchannel Gain Mismatch Input=0.3Vp-p, 100kHz (Note: 15) -0.3 - 0.3 dB Frequency response Input=0.3Vp-p, Response at 6MHz -1 -0.5 dB Input impedance Chrominance input (internally biased) 40 60 - kohm Input Signal f=100kHz, maximum with distortion < 1.0%, gain=6dB. - - 1.5 Vpp Load Resistance Except RFV pin (Note: 16) RFV pin (Note: 17) 150 20k - - - - ohm ohm Load Capacitance C1 (Note: 16) C2 (Note: 16, Note: 17) 400 15 pF pF Dynamic Output Signal f=100kHz, maximum with distortion < 1.0% - - 3 Vpp Y/C Cross talk f=4.43MHz, 1Vp-p input. Among TVVOUT, TVRC, VCRVOUT and VCRC outputs. - -50 - dB S/N Reference Level = 0.7Vp-p, CCIR 567 weighting. BW= 15kHz to 5MHz. - 74 - dB Differential Gain 0.7Vpp 5steps modulated staircase. chrominance &burst are 280mVpp, 4.43MHz. -3 - 3 % Differential Phase 0.7Vpp 5steps modulated staircase. chrominance &burst are 280mVpp, 4.43MHz. -3 - 3 Degree |
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