ICs for VCR AN3375S 2-head recording/playback amplifier IC (V2) for a stand-alone VHS-VCR Unit: mm 10.09±0.20 9 4.30±0.20 6.40±0.30 +0.10 16 The AN3375S is a two-head recording/playback 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. 0.15−0.05 ■ Overview 0° to 10° 0.50±0.20 8 (0.60) 0.65±0.10 1.50±0.20 1 • Recording current without adjustment (Zener zap method) • Damping-less amplifier for playback-system • Built-in auto tracking circuit 0.65±0.10 0.10±0.10 ■ Features 1.27 0.40±0.10 ■ Applications Seating plane • Stand-alone type VHS-VCR Seating plane SOP016-P-0225C REC in 9 8 Auto-tracking out 10 7 11 GCA control GND (video) 12 Chroma out 13 14 N.C. REC/PB 15 16 Video VCC (5 V) ■ Block Diagram AT Amp. chroma Zener ZAP L H N.C. N.C. 6 N.C. 5 V. REC out 4 CH1 in 3 R HA1 GND 2 CH2 in HSW 1 L HA2 1 AN3375S ICs for VCR ■ Pin Descriptions Pin No. Description Pin No. Description 1 Video head SW 9 Video REC input 2 Video head amp. input CH2 10 Auto tracking out 3 GND (video small signal) 11 Auto tracking GCA control 4 Video head amp. input CH1 12 GND 5 Video REC out 13 Video chroma out 6 N.C. 14 N.C. 7 N.C. 15 REC/PB select SW 8 N.C. 16 Video VCC ■ Absolute Maximum Ratings Parameter Supply voltage Symbol Rating Unit Video VCC 6 V ICC mA PD 300 mW Topr −20 to +70 °C Tstg −55 to +150 °C Supply current Power dissipation *2 Operating ambient temperature Storage temperature *1 *1 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. ■ Recommended Operating Range Parameter Supply voltage Symbol Range Unit Video VCC 4.5 to 5.5 V ■ Electrical Characteristics at Ta = 25°C Parameter Symbol Conditions Typ Max Unit Video VCC I total (PB) I16(PB) Video VCC = 5.0 V REC/PB SW: Low 13 (20) 27 mA Video HSW Threshold voltage VTH1 Video VCC = 5.0 V REC/PB SW: Low 1.5 (2.5) 3.5 V REC/PB SW Threshold voltage VTH15 Video VCC = 5.0 V 1.5 (2.5) 3.5 V Video CH1 gain G4-13 Video VCC = 5.0 V REC/PB SW: Low 55 (59) 63 dB Video CH2 gain G2-13 Video VCC = 5.0 V REC/PB SW: Low 55 (59) 63 dB Note) The standard values in the parenthesis are the typical values and not the guaranteed ones. 2 Min ICs for VCR AN3375S ■ Electrical Characteristics at Ta = 25°C (continued) Parameter Symbol Noise referred to video CH1 input N4-13 Noise referred to video CH2 input Min Typ Max Unit Video VCC = 5.0 V REC/PB SW: Low 1.0 µV[rms] N2-13 Video VCC = 5.0 V REC/PB SW: Low 1.0 µV[rms] Video HSW DC unbalance ∆VHSW Video VCC = 5.0 V REC/PB SW: Low 100 mV[p-p] Output without auto tracking input V10min Video VCC = 5.0 V REC/PB SW: Low 0 (0.5) 1.0 V Auto tracking maximum output V10max Video VCC = 5.0 V REC/PB SW: Low 4.0 (4.5) V Video CH2/CH1 gain ratio G12-13 / G14-13 Video VCC = 5.0 V REC/PB SW: Low −2 (0) 2 dB Video VCC I total (REC) I16(REC) Video VCC = 5.0 V REC/PB SW: High 24 (37) 50 mA I5 Video VCC = 5.0 V REC/PB SW: High 27.9 30 Video REC current output Conditions 32.1 mA[p-p] Note) The typical value in the parenthesis is the typical value and not the guaranteed one. • 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 Auto tracking output voltage 1 V10L Video VCC = 5.0 V REC/PB SW: Low 3.4 3.7 4.0 V Auto tracking output voltage 2 V10H Video VCC = 5.0 V REC/PB SW: Low 1.5 1.9 2.3 V D5 Video VCC = 5.0 V REC/PB SW: High ¾ -45 -40 dB MD5 Video VCC = 5.0 V REC/PB SW: High −48 dB CTH13 Video VCC = 5.0 V REC/PB SW: Low −40 dB V13H / V13 Video VCC = 5.0 V REC/PB SW: Low −4.5 (−2.5) dB ISH / IS Video VCC = 5.0 V REC/PB SW: High −4.5 (−2.5) dB I5 Video VCC = 5.0 V REC/PB SW: High 28.5 30 Video REC Current secondary distortion Video REC Cross modulation relative level Video HSW Crosstalk Video PB Frequency characteristics ratio Video REC 8 MHz frequency characteristics ratio Video REC Current output *1 31.5 mA[p-p] 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. 3 AN3375S ICs for VCR ■ Terminal Equivalent Circuits Pin No. Equivalent circuit Description 1 Head SW 3 kΩ Voltages/Waveform Input sygnal 5V 3 kΩ 2.5 V 0V 23 kΩ 1 3 kΩ 2 Video head amp. ch.2 input 20 Ω PB: On REC: On 0.7 V or 2.5 V 300 Ω 20 Ω PB: On 2 3 GND (video small signal) 4 Video head amp. ch.1 input 20 Ω PB: On 0.7 V or 2.5 V REC: On 300 Ω 20 Ω PB: On 4 5 Video REC EP out 10 Ω 120 Ω 2.5 V 10 Ω 4 5 ICs for VCR AN3375S ■ Terminal Equivalent Circuits (continued) Pin No. Equivalent circuit 6 7 8 Description Voltages/Waveform N.C. 9 Video REC input 23 kΩ 1.4 V 18 kΩ 20 kΩ 200 Ω 9 10 Auto tracking out DC 30 kΩ 20 Ω 10 11 Auto tracking GCA control 11 DC 9.4 kΩ 12 GND (video) 13 Video chroma out 10 pF PB: On 13 30 kΩ 5 AN3375S ICs for VCR ■ Terminal Equivalent Circuits (continued) Pin No. Equivalent circuit 14 Description Voltages/Waveform N.C. 15 REC/PB select SW 5V 3 kΩ 3 kΩ 0V 23 kΩ 69 kΩ 69 kΩ 15 16 Video VCC 9 8 0.01 µF REC in 1 µF AT 18 kΩ 10 7 11 12 24 kΩ 39 kΩ Chroma out 13 14 N.C. 0.01 µF REC/PB 15 16 47 µF 100 µH Video VCC 5V ■ Application Circuit Example AT Amp. chroma Zener ZAP L H 6 HSW N.C. N.C. 6 N.C. 5 0.1 µF 4 10 µH 3 R HA1 10 µH 0.1 µF 2 1 000 pF 1 L HA2