AN3336

AN3336SB PANASONIC | Alldatasheet

Document overview

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Technical content

The AN3336SB is a recording/playback amplifier IC for 4-head VCR. It includes RF-AGC, automatic tracking I/O, and envelope comparing circuit. n Features

• Playback VC C = 5.0V, recording VCC = 12V
• Built-in RF-AGC circuit
• Built-in automatic tracking I/O circuit
• Built-in envelope comparing circuit AN3336SB 4-Head VCR Recording/Playback Amplifier IC Unit : mm 36-Pin SSOP package (SSOP036-P-0450A) 0.5 15.2–0.30 11.93–0.30 0.3–0.11 2.85–0.2 0.8 1.3–0.25 0.2+ 0.1 – 0.05 1.3–0.25 0.1–0.1 (0.28) 8.4–0.30 18 19 Head switching Envelope ON/OFF switching Ch 1 head amp. damping Ch 1 head amp. input Small-signal ground Ch 2 head amp. input Ch 2 head amp. damping Sub-ground Sub-ground Ch 3 head amp. damping Ch 3 head amp. input Small-signal ground Ch 4 head amp. input Ch 4 head amp. damping Rec. current amp. (LP) output Rec. feedback Rec. current amp. (SP) output Rec. V CC Pin No. Pin name Pin namePin No. Evelope detector capacitor for ch 3 and ch 4 Peaking for recording Automatic tracking output Automatic tracking detector capacitor Automatic tracking control Automatic tracking V CC Rec. Y–input Chroma output Sub-ground Sub-ground Sub-ground Recording C–input AGC output AGC detector capacitor Envelope detector capacitor for ch 1 and ch 2 Head amp. switching ENV output, recording bias Playback V CC n Pin Descriptions

0.01µF 35 34 33 32 31 30 29 28 27 26 25 24 23 22 21 20 19 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 18 PB 5V V CC ENV HASW C– IN SUB– GND MAIN– GND 1.5kW Y– IN AT GCA AT OUT 0.1µF 0.1µF Det. LOG CHROMA Amp. Mix. AGCDet. Comp. Det. Det. SP LH L P LH L H LP SP HA3 HA4 PB ON PB ON HL HA1 HA2 Rec Logic HSW 1µF+ *100W 0.01µF 0.01µF 1µF+ *100W 1µF + *100WSUB–GND 0.01µF 0.01µF + 1µF *100W 0.01µF0.1µF0 . 1 µF *250 W *250 W Rec VCC 12V ENV OFF H Note) The resistance of notation* should be between 0 and 500 ohms. n Block Diagram ˚C–55 to +125 Parameter Symbol Rating Unit Tstg Topr PB V CC Rec VCC PD –20 to +70 Supply voltage (1) Supply current (2) Power dissipation Note 2) Operating ambient temperature Note 1) Storage temperature Note 1) 440 V V mW Note 1) Ta=25˚C for except ambient temperature and storage temperatures. Note 2) Allowable power dissipation of the package at Ta=70˚C. n Absolute Maximum Ratings

G 4–26 G 6–26 PB V CC =5V PB V CC =5V 53 61 dBG 11–26 PB V CC =5V dB dB Parameter min Condition typ max UnitSymbol 53 61 dBG 13–26 PB V CC =5V I36 PB V CC =5VPB circuit current CH 1 gain CH 2 gain CH 3 gain CH 4 gain HSW change-over sensitivity HASW change-over sensitivity AGC output amplitude AGC control sensitivity HSW DC unbalance (I) HSW DC unbalance (II) HASW DC unbalance (I) HASW DC unbalance (II) Input conversion noise (1) Input conversion noise (2) Input conversion noise (3) Input conversion noise (4) Auto-tracking output at no-input Auto tracking max. output ENV output amplitude Rec. circuit current SP Y–Rec. current output LP Y–Rec. current output ratio SP 8MHz f characteristics ratio LP 8MHz f characteristics ratio Rec. chroma output ratio PB circuit current CH 1 gain CH 2 gain CH 3 gain CH 4 gain AGC output amplitude Rec circuit current SP Y–Rec. current output Rec. chroma output ratio Rec. current 2nd harmonics distortion Cross-modulation relative level Auto tracking SP output voltage (1) Auto tracking SP output voltage (2) Auto tracking LP output voltage difference 56 mA S34 V 4–31 PB V CC =5V PB V CC =5V 3.0 dBDV 4–31 PB V CC =5V 130 3.8 270 V mV P–P 100 mV P–P HSW 26 (I) PB V CC =5V S1 PB V CC =5V 3.8 V HASW 26 (I) HASW 26 (II) PB V CC =5V PB V CC =5V 1.0 µVrmsN 4–26/G4–26 PB V CC =5V 100 100 mV P–P mV P–P 1.0 µVrmsN 6–26/G6–26 PB V CC =5V HSW 26 (II) PB V CC =5V 100 mV P–P N 13–26/G13–26 V 21min. PB V CC =5V PB V CC =4.8V 3.8 VV 21max. PB V CC =4.8V 1.0 1.0 µVrms V

3.5 V P–PV 35 PB V CC =5V

N 11–26/G11–26 PB V CC =5V 1.0 µVrms 48 mAI18 Rec VCC =12V I15/I17 I17H /I17 Rec VCC =12V Rec VCC =12V – 4 dBI15H /I15 Rec VCC =12V 2.5 dB dB –15 dBI17C /I17 Rec VCC =12V I17 Rec VCC =12V 32 mA P–P – 4 – 2.5 n Electrical Characteristics (Ta=25–2˚C) G 4–26 G 6–26 PB V CC =5V PB V CC =5V dBG 11–26 PB V CC =5V dB dB dBG 13–26 PB V CC =5V I36 PB V CC =5V mA I18 I17 Rec VCC =12V Rec VCC =12V dBI17C /I17 Rec VCC =12V mA mA P–P dBD 2f Rec VCC =12V V 4–31 PB V CC =5V mV P–P V 21SP1 V 21SP2 PB V CC =4.8V, Vin=400mVP–P PB V CC =4.8V, Vin=100mVP–P VV 21LP –V 21SP2 PB V CC =4.8V V V D M Rec VCC =12V dB Note) The characteristics value in parentheses is not a guaranteed value, but reference one on design. (3.4) (1.5) (0.1) (43) (57) (57) (57) (57) (200) (33) (12) (–12) (– 43) (– 48) (3.9) (2.5) (0.5) Parameter Symbol Range Operating supply voltage range (1) Operating supply voltage range (2) 4.5V to 5.5VPBV CC 8.5V to 12.5VRecV CC n Recommended Operating Range (Ta=25˚C)

Channel Input pin Head SW Pin1 HASW Pin 34 H L L H L L H H n Functional Descriptions 1. Playback mode

• Pin36 (playback VCC ) = 5V typ. (Pins15 and 17 are grounded internally)
• Pin18 (recording VCC ) = open (1) Selecting a head amplifier output channel Env. ON/OFF SW Pin2 Env. comparator Open Inactive Low (special playback) Active (2) Starting the envelope comparator High Low LP SP Automatic tracking (3) Automatic tracking interface Pin24 (automatic tracking VCC ) = 5V typ.
• When the SP mode of the automatic tracking interface switches to the LP mode, the gain of the amplifier increases 5.5dB. When the gain control voltage at Pin23 increases, the gain of the circuit increases. HASW(Pin24)

Ambient temperature Ta (˚C) PD —Ta 200 400 600 800 1.000 1.200 1.400 1.600 Power dissipation PD (mW) 1.449 25 50 75 100 125 150 On glass-epoxy print board (50mm · 50mm · t 0.8mm) R thj–a=69˚C/W PD =1449mW(25˚C) IC without heatsink R thj–a=120˚C/W PD =833mW (25˚C) 833 1.800 2.000 HASW Pin 34 H L OFF active SP output active OFF LP output GND Diode Pin11,13 Diode GND Pin4,6 Open GND Pin19 HASW control at Pin34 n Reference R 2. Recording mode Pin18 (recording VCC ) =12V typ. Pin36 (playback VCC ) Pin24 (automatic tracking VCC ) Pin35 : Recording internal bias current control How to control : • When the external resistance decreases, the internal circuit bias current (Itotal) increases.

• R should be 27 to 33kW . } Opened or grounded