AN3375S PANASONIC | Alldatasheet
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Technical content
2-head recording/playback amplifier IC (V2) for a stand-alone VHS-VCR n Overview The AN3375S is a two-head recording/play- back amplifier IC for a VHS-VCR enabling a fewer pin package. The package is 16-pin, 1.27 mm pitch SO type. The power supply is 5 V single source. n Features
- Recording current without adjustment (Zener zap method)
- Damping-less amplifier for playback-system
- Built-in auto tracking circuit n Applications
- Stand-alone type VHS-VCR n Block Diagram 10.09–0.20 16 9 (0.60) 0.40–0.10 Seating plane Seating plane 4.30–0.20 6.40–0.30 1.50–0.200.10–0.10 0.65–0.100.65–0.10 1.27 +0.10 0.15 -0.05 0° to 10° 0.50–0.20 SOP016-P-0225C Unit: mm R HA1 Zener ZAP L HA2 LH AT Amp. chroma N.C. N.C. N.C. N.C. Video V CC (5 V) REC/PB Chroma out GND (video) GCA control Auto-tracking out REC in HSW CH2 in GND CH1 in V. REC out
Pin No. Description
1 Video head SW
2 Video head amp. input CH2
3 GND (video small signal)
4 Video head amp. input CH1
5 Video REC out
6N . C . 7N . C . 8N . C . n Pin Descriptions n Absolute Maximum Ratings Parameter Symbol Rating Unit Supply voltage Video V CC 6V Supply current I CC ¾ mA Power dissipation *2 PD 300 mW Operating ambient temperature *1 T opr -20 to +70 °C Storage temperature *1 Tstg -55 to +150 °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. Parameter Symbol Range Unit Supply voltage Video V CC 4.5 to 5.5 V n Recommended Operating Range Pin No. Description
9 Video REC input
10 Auto tracking out
11 Auto tracking GCA control
12 GND
13 Video chroma out
14 N.C.
15 REC/PB select SW
16 Video V CC
Parameter Symbol Conditions Min Typ Max Unit Video VCC I total (PB) I 16(PB) Video VCC = 5.0 V 13 (20) 27 mA REC/PB SW: Low Video HSW V TH1 Video VCC = 5.0 V 1.5 (2.5) 3.5 V Threshold voltage REC/PB SW: Low REC/PB SW V TH15 Video VCC = 5.0 V 1.5 (2.5) 3.5 V Threshold voltage Video CH1 gain G 4-13 Video VCC = 5.0 V 55 (59) 63 dB REC/PB SW: Low Video CH2 gain G 2-13 Video VCC = 5.0 V 55 (59) 63 dB REC/PB SW: Low n Electrical Characteristics at Ta = 25°C Note) The standard values in the parenthesis are the typical values and not the guaranteed ones.
Parameter Symbol Conditions Min Typ Max Unit Noise referred to video CH1 input N4-13 Video VCC = 5.0 V ¾¾ 1.0 mV[rms] REC/PB SW: Low Noise referred to video CH2 input N2-13 Video VCC = 5.0 V ¾¾ 1.0 mV[rms] REC/PB SW: Low Video HSW DC unbalance DV HSW Video VCC = 5.0 V ¾¾ 100 mV[p-p] REC/PB SW: Low Output without auto tracking input V10min Video VCC = 5.0 V 0 (0.5) 1.0 V REC/PB SW: Low Auto tracking maximum output V 10max Video VCC = 5.0 V 4.0 (4.5) ¾ V REC/PB SW: Low Video CH2/CH1 gain ratio G 12-13 / Video V CC = 5.0 V -2 (0) 2 dB G14-13 REC/PB SW: Low Video VCC I total (REC) I 16(REC) Video VCC = 5.0 V 24 (37) 50 mA REC/PB SW: High Video REC current output I 5 Video VCC = 5.0 V 27.9 30 32.1 mA[p-p] REC/PB SW: High n Electrical Characteristics at Ta = 25°C (continued) Note) The typical value in the parenthesis is the typical value and not the guaranteed one. Parameter Symbol Conditions Min Typ Max Unit Auto tracking output voltage 1 V 10L Video VCC = 5.0 V 3.4 3.7 4.0 V REC/PB SW: Low Auto tracking output voltage 2 V 10H Video VCC = 5.0 V 1.5 1.9 2.3 V REC/PB SW: Low Video REC D 5 Video VCC = 5.0 V ¾ -45 -40 dB Current secondary distortion REC/PB SW: High Video REC MD 5 Video VCC = 5.0 V ¾- 48 ¾ dB Cross modulation relative level REC/PB SW: High Video HSW CTH 13 Video VCC = 5.0 V ¾¾ - 40 dB Crosstalk REC/PB SW: Low Video PB V 13H / V13 Video VCC = 5.0 V -4.5 (-2.5) ¾ dB Frequency characteristics ratio REC/PB SW: Low Video REC I SH / IS Video VCC = 5.0 V -4.5 (-2.5) ¾ dB
8 MHz frequency characteristics ratio REC/PB SW: High
Video REC I 5 Video VCC = 5.0 V 28.5 30 31.5 mA[p-p] Current output *1 REC/PB SW: High
- Design reference data Note) The characteristics listed below are theoretical values based on the IC design and are not guaranteed. Note) The typical value in the parenthesis is the typical value and not the guaranteed one. *1: Video REC current output (I5) is controlled in the shipping inspection of this IC. Because it is affected by the PCB or the cylinder, be cautious in handling it.
n Terminal Equivalent Circuits Pin No. Equivalent circuit Description Voltages/Waveform
1 Head SW Input sygnal
2 Video head amp. ch.2 input 3 ¾ GND (video small signal) ¾ 4 Video head amp. ch.1 input
5 Video REC EP out
2.5 V PB: On REC: On PB: On 300 W 20 W
20 W 2
0.7 V or 2.5 V PB: On REC: On PB: On 300 W 20 W
20 W 4
0.7 V or 2.5 V 10 W 120 W
10 W 5
2.5 V 5 V 0 V
n Terminal Equivalent Circuits (continued) Pin No. Equivalent circuit Description Voltages/Waveform 6 ¾ N.C. ¾
10 Auto tracking out DC
11 Auto tracking
12 ¾ GND (video) ¾ 1.4 V 30 kW
20 W 10
9.4 kW PB: On 10 pF 30 kW13
n Terminal Equivalent Circuits (continued) Pin No. Equivalent circuit Description Voltages/Waveform 14 ¾ N.C. ¾ 16 ¾ Video VCC ¾ 3 kW 23 kW 3 kW 69 kW 69 kW 5 V 0 V n Application Circuit Example R HA1 Zener ZAP L HA2 LH AT Amp. chroma N.C. N.C. N.C. N.C. Video VCC 5 V 100 mH REC/PB 47 mF 0.01 mF Chroma out AT REC in 39 kW24 kW 18 kW 1 mF 0.01 mF 0.1 mF 0.1 mF 1 000 pF HSW 10 mH 10 mH