BA7049S

The BA7049S converts NTSC,PAL-M and PAL-N chroma signal subcarrier frequencies to the PAL format 4.433619 MHz to allow PAL format processing circuitsto handle record and playback signals for these other formats.These ICs facilitate the development of multi-format VCRs.The typical application is multi-format VHS VCRs.There are some features as follows.First,it converts record and playback signals to standard format.The second is compatible with up to three other formats in addition to PAL.At last,Y and chroma system filter switches are all built-in.Few external components required.

What comes next is about the BA7049S absolute maximum ratings (T_a=25).The V_{CC Max} (applied voltage) is 8.0 V.The P_d (power dissipation) is 800 mW.The T_opr (operating temperature) is from -25 to 70.The T_stg (storage temperature) is from -55 to 125.Then is about the recommended operating conditions (T_a=25).The minimum V_CC (recommended operating voltage) is 4.5 V,the typical is 5.0 V and the maximum is 5.5 V.

The following is about the BA7049S eletrical characteristics (T_a=25,V_CC=5.0 V).The minimum I_CC (supply current) is 20.5 mA,the typical is 31.0 mA and the maximum is 41.5 mA.The minimum G₀ (0 dB amplifier voltage gain) is -0.5 dB,the typical is 0.0 dB and the maximum is +0.5 dB at f=1.0 MHz,V_IN=0.5 Vpk-pk.The minimum f₀ (0 dB amplifier frequency characteristic) is -2.0 dB,the typical is +0.0 dB and the maximum is +1.0 dB at f=5.0 MHz/1.0 MHz,V_IN=0.5 Vpk-pk.The minimum G₆ (6 dB amplifier voltage gain) is +5.5 dB,the typical is +6.0 dB and the maximum is +6.5 dB at f=1.0 MHz,V_IN=0.25 Vpk-pk.The minimum f₆ (6 dB amplifier frequency characteristic) is -2.0 dB,the typical is +0.0 dB and the maximum is +1.0 dB at f=5.0 MHz/1.0 MHz,V_IN=0.25 Vpk-pk.The typical C_T (interchannel crosstalk) is -45 dB and the maximum is -40 dB at f=4.43 MHz,V_IN=0.5 Vpk-pk.