AN3371SB

AN3371SB PANASONIC | Alldatasheet

Document overview

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Technical content

2-head recording/playback amplifier IC n Overview The AN3371SB is a 2-head recording/playback amplifier IC for VCR. n Features

• Pin and package compatible with the 4-head re- cording/playback amplifier AN3361SB.
• Recording current is adjustment-free.
• REC in and PB out pins are in common (RIPO)
• 12 V single supply voltage (PB 5 V is generated inside.) n Applications
• VCR n Block Diagram 35 V CC 12 V PB-L REC in / PB out GND D-REC-H Open ZAP4 Open ZAP2 Open ZAP3 HSW Channel 1 H.A. in GND Channel 2 H.A. in Damping Damping Open ZAP1 REC F.B. REC amp. out 18 PB

5 V P

R LH Chromaamp. 8.4±0.3 0.5 0.1±0.1 11.93±0.32.85±0.2 15.2±0.3 36 19 11 8 0.3±0.11 0.8 Seating plane 0.2+0.10 –0.05 SSOP036-P-0450A Unit: mm

Pin No. Description

19 ZAP2 (ZAP write pin)

20 ZAP3 (ZAP write pin)

21 ZAP4 (ZAP write pin)

22 N.C. 23 N.C. 24 N.C.

25 D-REC-H input pin

26 N.C. 27 N.C.

28 Main GND

29 N.C

30 REC input / PB output pin

31 PB-L input pin

32 N.C. 33 N.C. 34 N.C.

35 V CC (12 V)

36 Capacitor for PB 5 V

Pin No. Description

1 HSW input pin

2N . C . 3 Channel-1 head amp. damping 4 Channel-1 head amp. input

5 Small signal GND

6 Channel-2 head amp. input 7 Channel-2 head amp. damping 8N . C . 9N . C . 10 N.C. 11 N.C. 12 N.C.

13 ZAP1 (ZAP write pin)

14 N.C 15 N.C. 16 N.C.

17 REC feedback

18 REC amp. output n Absolute Maximum Ratings Parameter Symbol Rating Unit Supply voltage V CC 13 V Supply current I CC ¾ mA Power dissipation *2 PD 440 mW Operating ambient temperature *1 T opr -20 to +70 °C Storage temperature *1 Tstg -55 to +125 °C Note) *1: Except for the operating ambient temperature and storage temperature, all ratings are for Ta = 25°C. *2: The power dissipation shown is for the IC package in free air at Ta = 70°C. n Recommended Operating Range Parameter Symbol Range Unit Supply voltage V CC 11.5 to 12.5 V

n Electrical Characteristics at Ta = 25°C Parameter Symbol Conditions Min Typ Max Unit REC circuit current I 35R V CC = 12 V 27 ¾ 49 mA PB circuit current I 35P V CC = 12 V 16 ¾ 30 mA HSW DC unbalance HSW V CC = 12 V ¾¾ 100 mV[p-p] Channel-1 gain G 4-30 V CC = 12 V 52 ¾ 60 dB Channel-2 gain G 6-30 V CC = 12 V 52 ¾ 60 dB Input referred noise 1 N 4-30 /G4-30 V CC = 12 V ¾¾ 1 mV[rms] Input referred noise 2 N 6-30 /G6-30 V CC = 12 V ¾¾ 1 mV[rms] High-level HSW hold voltage V H1 V CC = 12 V 3.6 ¾ 5.0 V Low-level HSW hold voltage V L1 V CC = 12 V 0.0 ¾ 1.4 V High-level D-REC-H hold voltage V H25 V CC = 12 V 3.6 ¾ 12.0 V Low-level D-REC-H hold voltage V L25 V CC = 12 V 0.0 ¾ 1.4 V Channel-1 gain G A4-30 V CC = 12 V 49 ¾ 58 dB Channel-2 gain G A6-30 V CC = 12 V 49 ¾ 58 dB High-level PB-L hold voltage V H31 V CC = 12 V 3.6 ¾ 5.0 V Low-level PB-L hold voltage V L31 V CC = 12 V 0.0 ¾ 1.4 V REC recording current output I 18 V CC = 12 V 28.2 30.0 31.8 mA[p-p]

• Design reference data Note) The characteristics listed below are theoretical values based on the IC design and are not guaranteed. Parameter Symbol Conditions Min Typ Max Unit REC circuit current I 35R V CC = 12 V ¾ 38 ¾ mA PB circuit current I 35P V CC = 12 V ¾ 23 ¾ mA Record current secondary distortion D2f V CC = 12 V ¾- 43 ¾ dB Cross modulation relative level DM V CC = 12 V ¾- 48 ¾ dB Channel-1 gain G 4-30 V CC = 12 V ¾ 56 ¾ dB Channel-2 gain G 6-30 V CC = 12 V ¾ 56 ¾ dB REC recording current output I 18 V CC = 12 V 28.8 30 31.2 mA[p-p]

Pin No. Equivalent circuit Description

1 HSW input pin:

High: 3.6 V to 5.0 V Low: 0.0 V to 1.4 V 2 ¾ N.C. 3 Channel-1 head amp. damping: DC 1.5 V 4 Channel-1 head amp. input: DC 0.7 V 5 ¾ Small signal GND 6 Channel-2 head amp. input: DC 0.7 V 7 Channel-2 head amp. damping: DC 1.5 V n Terminal Equivalent Circuits 100 mA 3 kW 3 kW 23 kW 2.5 V 5 V 5 V 4.5 kW 90 W 1.24 V 4.5 kW15 kW 4.5 kW15 kW 5 V 4.5 kW 90 W 1.24 V

Pin No. Equivalent circuit Description 8 ¾ N.C. 9 ¾ N.C. 10 ¾ N.C. 11 ¾ N.C. 12 ¾ N.C. 14 ¾ N.C. 15 ¾ N.C. 16 ¾ N.C.

17 REC feedback:

18 REC amp. output: DC 6 V n Terminal Equivalent Circuits (continued) 200 W 20 kW 30 kW 90 kW 12 V 12 V 9.6 kW 540 W 9.6 kW 200 W 20 kW 30 kW 90 kW 12 V

Pin No. Equivalent circuit Description 22 ¾ N.C. 23 ¾ N.C. 24 ¾ N.C.

25 D-REC-H input pin:

High: 3.6 V to 12.0 V Low: 0.0 V to 1.4 V 26 ¾ N.C. 27 ¾ N.C. 28 ¾ Main GND 29 ¾ N.C.

30 REC input/PB output pin

n Terminal Equivalent Circuits (continued) 200 W 20 kW 30 kW 90 kW 12 V 200 W 20 kW 30 kW 90 kW 12 V 20 kW 100 kW 100 mA100 mA 2.5 V 100 mA 30 kW 30 kW 1.5 mA 2 V 12 V PB 5 V 30

Pin No. Equivalent circuit Description

31 PB-L input pin:

High: 3.6 V to 5.0 V Low: 0.0 V to 1.4 V 32 ¾ N.C. 33 ¾ N.C. 34 ¾ N.C. 35 ¾ V CC (12 V) 36 ¾ Capacitor for PB 5 V n Terminal Equivalent Circuits (continued) 23 kW 2.5 V 100 mA n Application Circuit Example PB R LH Chromaamp. 35 V CC 12 V PB-L REC in / PB out GND D-REC-H Open ZAP4 Open ZAP2 Open ZAP3 HSW Channel 1 H.A. in GND Channel 2 H.A. in Damping Damping Open ZAP1 REC F.B. REC amp. out 18