Ordering number : EN5711A
Monolithic Linear IC
LA70020, 70020M
Recording/Playback Amplifier for VHS VCRs
Overview
The LA70020 and LA70020M are 6-head amplifiers adding hi-fi recording/playback amplifiers to the LA70011/LA70011M recording/playback amplifiers for VHS VCR video signals. When used in combination with the LA71000M and LA71500M Series of video signal processing ICs, they permit Y/C recording without current adjustment.
Package Dimensions
unit: mm 3170-DIP36S 400mil
[LA70020]
Features
• Combining hi-fi and video amplifiers onto a single chip saves space on the circuit board. • Connecting the playback amplifier input directly to the head reduces the number of external elements required. • The recording amplifiers use a fixed-current drive configuration that yields stable recording characteristics even under changing loads. They include built-in automatic gain control circuits. • The LA70020, encapsulated in DIP package, can be mounted at the right end of the LA70001 and LA70011 sockets. The LA70020M lacks this flexibility because its MFP package has a different pin pitch.
SANYO: DIP36S
unit: mm 3129-MFP36SD, MFP36SLF
[LA70020M]
Specifications
Maximum Ratings at Ta = 25°C
Parameter Maximum power supply voltage Symbol VCC max Ta ≤ 65°C [LA70020] Maximum power dissipation Pd max Ta ≤ 65°C [LA70020M] 114. 3 × 76. 1 × 1. 6 mm: glass epoxy Operating temperature Storage temperature Topr Tstg Conditions
SANYO: MFP36SD SANYO: MFP36SLF
Ratings 6. 0 1000 1000 –10 to +65 –40 to +150 Unit V mW mW °C °C
Operating Conditions at Ta = 25°C
Parameter Recommended supply voltage Operating supply voltage range Symbol VCC VCCop Conditions Ratings 5. 0 4. 8 to 5. 3 Unit V V
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LA70020, 70020M Electrical Characteristics at Ta = 25°C (Video Circuits)
Parameter Playback Mode Current drain SP-L CH1 Voltage gain SP-H C...