ICs for VCR AN3341SC 6-Head VCR Recording/Playback Amplifier IC ■ Overview Unit : mm 0.35±0.1 21.25±0.3 0.45 The AN3341SC is a recording/playback amplifier IC for 6-head VCR. It is suitable for 19-µ head, EP-mode only, table-type VCR. ■ Features 0.1±0.1 1.0 • Playback VCC=5.0V, recording VCC=12V • Built-in RF-AGC circuit • Built-in automatic tracking I/O circuit • Built-in envelope comparator circuit 2.0±0.2 9.5±0.3 0.9 0.15 0.3 11.5±0.3 42-Pin SSOP package (SSOP042-P-0450) ■ Block Diagram HASW normal EP /other AT TRAP Chroma Out Y – IN AGC TRICK C – IN Out H AT GCA Rec VCC 12V ENV Out 100µH H 0.1µF 1.7kΩ 1µF 0.1µF 330pF 0.01µF ENV OFF 180 µH 1.5kΩ 0.1µF AT Out 0.01 µF 30kΩ 47µF 3.9kΩ 0.01µF + 1200pF 42 41 40 39 38 37 36 35 34 33 32 31 30 TRAP AGC Det. 29 28 27 26 25 24 23 22 HASW : L ON Det. Peaking Amp. AGC ENV Det. Chroma Amp. PB Logic ENV Det. ENV Comp. Mix. L H H H 1 2 3 R HA6 4 5 0.1µF 5V 47µF 100Ω 0.01µF L normal EP to Rec. Circuit PB VCC 100µH L 0.01µF L H L SP L HA5 6 L 7 R' HA4 8 9 10 0.01µF 0.1µF 0.1µF 100Ω 100Ω 0.01µF normal EP SP H TRICK EP L' HA3 11 H 12 L HA2 13 14 15 0.01µF 0.1µF 0.1µF 100Ω 100Ω R HA1 16 0.01µF 17 18 19 20 21 0.01µF 0.1µF 0.1µF 0.01µF 0.1µF 100Ω 1000pF HSW D – Rec H 470Ω 470Ω ICs for VCR AN3341SC ■ Pin Descriptions Pin No. Pin name Playback VCC Pin No. Pin name Rec. VCC 1 2 Head switching 22 23 Rec. current emphasis 3 D-Rec. switching 24 Peaking for recording 4 Ch6 head amp. damping 25 ENV output 5 Ch6 head amp. input 26 ENV OFF switching 6 Small-signal ground 27 Automatic tracking ground 7 Ch5 head amp. input 28 Automatic tracking output 8 Ch5 head amp. damping 29 Automatic tracking detection 9 Ch4 head amp. damping 30 Automatic tracking GCA control 10 Ch4 head amp. input 31 Automatic tracking TRAP 11 Small-signal ground 32 Automatic tracking VCC 12 Ch3 head amp. input 33 Recording Y-input 13 Ch3 head amp. damping 34 Chroma output 14 Ch2 head amp. damping 35 Large signal ground 15 Ch2 head amp. input 36 Peaking amp. (playback) 16 Small-signal ground 37 Recording C-input 17 Ch1 head amp. input 38 Trick switching 18 Ch1 head amp. damping 39 AGC output 19 Rec. current amp. (SP)output 40 AGC. Det 20 Rec. feedback 41 Normal EP/other switching 21 Rec. current amp. (EP)output 42 HASW ■ Absolute Maximum Ratings Parameter Supply voltage Symbol VCC Rating Unit (1) PB VCC 6 (2) Rec VCC 13 V Power dissipation Note 2) PD 430 Operating ambient temperature Note 1) Topr – 20 to +70 ˚C Storage temperature Note 1) Tstg – 55 to +125 ˚C mW Note 1) Ta=25˚C except operating ambient temperature and storage temperatures. Note 2) Allowable power dissipation of the package at Ta=70˚C. ■ Recommended Operating Range (Ta = 25˚C) Parameter Symbol Range Operating supply voltage range (1) PB VCC 4.5V to 5.5V Operating supply voltage range (2) Rec VCC 11.5V to 12.5V ICs for VCR AN3341SC ■ Electrical Characteristics (Ta = 25±2˚C ) Parameter Symbol Condition min typ max Unit I1 PB VCC = 5V 33 * 50 mA CH1 gain G17–34 PB VCC = 5V 52 56 * 60 dB CH2 gain G15–34 PB VCC = 5V 52 56 * 60 dB CH3 gain G12–34 PB VCC = 5V 52 56 * 60 dB CH4 gain G10–34 PB VCC = 5V 52 56 * 60 dB CH5 gain G7–34 PB VCC = 5V 52 56 * 60 dB CH6 gain G5–34 PB VCC = 5V 52 56 * 60 dB HSW threshold level S2 PB VCC = 5V 1.5 2.5 * 3.5 V HASW threshold level S42 PB VCC = 5V 1.5 2.5 * 3.5 V Normal EP/other threshold level S41 PB VCC = 5V 1.5 2.5 * 3.5 V PB circuit current S38 PB VCC = 5V 1.5 2.5 * 3.5 V AGC output amplitude V17–39 PB VCC = 5V 130 200 * 270 mVP – P AGC control sensitivity ∆V17–39 PB VCC = 5V 3.0 dB HSW DC unbalance (I) HSW2 PB VCC = 5V 100 mVP – P HSW DC unbalance (II) HSW2 PB VCC = 5V 100 mVP – P HSW DC unbalance (III) HSW2 PB VCC = 5V 100 mVP – P HASW DC unbalance (I) HASW42 PB VCC = 5V 100 mVP – P HASW DC unbalance (II) HASW42 PB VCC = 5V 100 mVP – P Trick SW threshold level (I) (II) (III) (I) (II) Input conversion noise CH1 N17–34 PB VCC = 5V 0.65 * 1.0 µVrms Input conversion noise CH2 N15–34 PB VCC = 5V 0.65 * 1.0 µVrms Input conversion noise CH3 N12–34 PB VCC = 5V 0.65 * 1.0 µVrms Input conversion noise CH4 N10–34 PB VCC = 5V 0.65 * 1.0 µVrms Input conversion noise CH5 N7–34 PB VCC = 5V 0.65 * 1.0 µVrms Input conversion noise CH6 N5–34 PB VCC = 5V 0.65 * 1.0 µVrms V25 PB VCC = 5V Auto tracking output at no-input V28min. PB VCC = 5V Auto tracking max. output V28max. PB VCC = 5V 3.8 4.2 * PB VCC = 5V –2 0* 2 dB PB VCC = 5V –2 0* 2 dB PB VCC = 5V –2 0* 2 dB PB VCC = 5V –2 0* 2 dB PB VCC = 5V –2 0* 2 dB 35 * 48 mA 24.5 * 32 mAP – P Envelope comparison output amplitude VP – P 4.0 0.3 * 1.0 V V G15–34 G17–34 G12–34 G17–34 G10–34 G17–34 G7–34 G17–34 G5–34 G17–34 I22 Rec. VCC = 12V I19 Rec. VCC = 12V 17 Normal EP Y Rec. current output ratio I21/I19 Rec. VCC = 12V – 5.5 –3* – 0.5 dB Rec. chroma output ratio I19C/I19 Rec. VCC = 12V –16 –12 * –8 dB Head Short ON-resistance 7ON–R PB VCC = 5V (5.5) (7) Ω CTH17–34 PB VCC = 5V (– 40) dB CH2/CH1 gain ratio CH3/CH1 gain ratio CH4/CH1 gain ratio CH5/CH1 gain ratio CH6/CH1 gain ratio Rec. circuit current SP Y Rec. current output HSW crosstalk Note) Values with an asterisk are typical ones and not guaranteed. The characteristics value in parentheses is not a guaranteed value, but reference one on design. ICs for VCR AN3341SC ■ Electrical Characteristics (Ta = 25±2˚C ) Parameter Symbol Condition min typ max Unit HASW crosstalk CTA17–34 PB VCC = 5V (– 40) dB Normal EP/other crosstalk CTN17–34 PB VCC = 5V (– 40) dB Cin PB VCC = 5V (30) pF Recording current 2nd harmonics distortion D2f–19 Rec. VCC =12V (– 50) dB Cross-modulation relative level DM–19 Rec. VCC =12V (– 50) dB ENV-OFF SW threshold level S26 PB VCC = 5V (1.5) (2.5) Input capacitance (3.5) V PB f characteristics ratio V34'/V34 PB VCC = 5V (– 4) (0) dB SP 8MHz f characteristics ratio I19H/I19 Rec. VCC =12V (– 4) (0) dB Normal EP 8MHz f characteristics ratio Auto tracking 7MHz max. output I21H/I21 Rec. VCC =12V (– 4) (0) dB V28–7M PB VCC = 5V (3.8) (4.2) V Note) The characteristics value in parentheses is not a guaranteed value, but reference one on design.