AN3328S

ICs for VCR AN3328S 2-head recording and playback amplifier IC (A2) for HiFi VCR s Overview The AN3328S is a 2-head recording and playback amplifier IC for HiFi audio, and realized reduction of pin numbers. The package is a small outline of 16 pins, 1.27 mm pitch and supply voltage is 5 V of single supply. 10.09 ± 0.20 16 9 Unit: mm 4.30 ± 0.20 6.40 ± 0.30 0.15−0.05 +0.10 0° to 10° 0.50 ± 0.20 s Features • Damping-less amp. in playback system • No adjustment of recording current by AGC • 3-step switchover of recording current level with the current emphasis switch (typ. ± 1.8 dB) 0.65 ± 0.10 1.50 ± 0.20 0.65 ± 0.10 0.10 ± 0.10 1 8 (0.60) 1.27 0.40 ± 0.10 Seating plane s Applications • HiFi VCR Seating plane SOP016-P-0225C s Block Diagram REC curr. monitor Curr. emph. SW 8 9 REC / PB select 14 PB out & REC / mute REC in REC C GND 16 15 13 12 11 Det AGC H L Curr. Amp. HA1 HA2 1 2 3 4 CH2 in 5 REC reg2 6 GND (small signal) REC reg1 REC out 7 CH1 in HSW 10 VCC 1 AN3328S s Pin Descriptions Pin No. 1 2 3 4 5 6 7 8 Description Audio head SW REC regulator1 Head amp. input ch.1 GND (small signal) Head amp. input ch.2 REC regulator2 REC out Curr. emph. SW Pin No. 9 10 11 12 13 14 15 16 ICs for VCR Description REC curr. monitor (control) VCC REC AGC det GND REC input PB out & REC / mute SW REC C REC/PB select SW s Absolute Maximum Ratings Parameter Supply voltage Supply current Power dissipation*2 Operating ambient temperature*1 Storage temperature*1 Symbol VCC ICC PD Topr Tstg Rating 6  240 -20 to +70 -55 to +125 Unit V mA mW °C °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. s Recommended Operating Range Parameter Supply voltage Symbol VCC Range 4.5 to 5.5 Unit V 2 ICs for VCR s Electrical Characteristics at Ta = 25°C Parameter REC Circuit current REC AGC level REC AGC control characteristics REC Recording current 2nd harmonic distortion REC Mode hold voltage REC Over REC hold voltage REC Normal hold voltage REC S-VHS hold voltage REC Over REC current ratio REC S-VHS current ratio REC Mute hold voltage 1 REC Mute hold voltage 2 PB Circuit current PB CH1 gain PB CH2 gain PB CH1 1.5 M / 2 M gain ratio PB CH2 1.5 M / 2 M gain ratio PB CH1 / CH2 gain ratio Noise referred to PB CH1 input Noise referred to PB CH2 input Symbol I10(REC) I7 DI7 D7 V16H V8L V8M V8H I7L → I7 I7H → I7 V14H(REC) V14L(REC) I10(PB) G3-14 G5-14 DG3-14 DG5-14 G3-14 → G5-14 N3-14 N5-14 Conditions VCC = 5.0 V REC / PB SW: High VCC = 5.0 V REC / PB SW: High VCC = 5.0 V REC / PB SW: High VCC = 5.0 V, REC / PB SW: High VIN = 260 mV[p-p], 2 MHz VCC = 5.0 V, REC / Mute SW: Low VIN = 260 mV[p-p], 2 MHz VCC = 5.0 V REC / PB SW: High VCC = 5.0 V REC / PB SW: High VCC = 5.0 V REC / PB SW: High VCC = 5.0 V REC / PB SW: High VCC = 5.0 V REC / PB SW: High VCC = 5.0 V REC / PB SW: High VCC = 5.0 V REC / PB SW: High VCC = 5.0 V REC / PB SW: Low VCC = 5.0 V, REC / PB SW: Low HSW: High, VIN = 0.1 mV[p-p], 2 MHz VCC = 5.0 V, REC / PB SW : Low HSW: Low, VIN = 0.1 mV[p-p], 2 MHz VCC = 5.0 V, REC / PB SW: Low HSW: High, VIN = 0.1 mV[p-p], 2 MHz VCC = 5.0 V, REC / PB SW: Low HSW: Low, VIN = 0.1 mV[p-p], 2 MHz VCC = 5.0 V, REC / PB SW: Low VIN = 0.1 mV[p-p], 2 MHz VCC = 5.0 V REC / PB SW: Low HSW: High VCC = 5.0 V REC / PB SW: Low HSW: Low Min 56 44   3.6 0 1.8 3.8 1.3 −2.3 3.6 0 9 72 72 0 0 −2   Typ (66) (48) (0.2) (−43)     (1.8) AN3328S Max 76 52 1.0 −35 Vcc 1.2 3.2 Vcc 2.3 Unit mA mA[p-p] dB dB V V V V dB dB V V mA dB dB dB dB dB mV[rms] mV[rms] (−1.8) −1.3   (13) (76) (76) (0.5) (0.5) 0   Vcc 1.4 17 80 80 1 1 2 1.0 1.0 Note) The typical value in the parenthesis is not the guaranteed one. 3 AN3328S s Electrical Characteristics at Ta = 25°C (continued) Parameter PB Mode hold voltage PB CH1 hold voltage PB CH2 hold voltage PB HSW DC unbalanced Symbol V16L V1H(PB) V1L(PB) DVOFFSET Conditions VCC = 5.0 V REC / PB SW: Low VCC = 5.0 V REC / PB SW: Low VCC = 5.0 V REC / PB SW: Low VCC = 5.0 V REC / PB SW: Low Min 0 3.6 0  Typ     ICs for VCR Max 1.4 VCC 1.4 20 Unit V V V mV[p-p] • Design reference data Note) The characteristics listed below are theoretical values based on the IC design and are not guaranteed. Parameter REC Cross modulation distortion at 0.4 MHz REC Cross modulation distortion at 0.9 MHz REC Muting ratio PB Crosstalk CH1 to CH2 PB Crosstalk CH2 to CH1 PB CH1, Output 2nd harmonic distortion PB CH2, Output 2nd harmonic distortion Symbol CMD0.4M CMD0.9M I M / I7 CT1 CT2 D3-14 D5-14 Conditions VCC = 5.0 V REC / PB SW: High VCC = 5.0 V REC / PB SW: High VCC = 5.0 V REC / PB SW: High VCC = 5.0 V REC / PB SW: Low VCC = 5.0 V REC / PB SW: Low VCC = 5.0 V, HSW: High REC / PB SW: Low VCC = 5.0 V, HSW : Low REC / PB SW: Low Min        Typ (−45) (−52)  −40 −40 −50 −50 Max   −40     Unit dB dB dB dB dB dB dB Note) The typical value in the parenthesis is not the guaranteed one. 4 ICs for VCR s Terminal Equivalent Circuits Pin No. 1 Equivalent Circuit Description Audio head SW Voltage Input signal 5V 0V 3 kΩ 23 kΩ 1 AN3328S Remark At open : High (ch.1 Select) 3 kΩ 2.5 V 3 kΩ 2 46.6 kΩ REC regulator 1 D.C REC: ON 2  18 kΩ 101.2 kΩ 3 1.125 kΩ Head amp. input ch.1 0.7 V 2.1 V 380 Ω 6 kΩ  3 15 kΩ 4 5  GND (small signal) Head amp. input ch.2 0.7 V   1.125 kΩ 2.1 V 380 Ω 6 kΩ  5 15 kΩ 5 AN3328S s Terminal Equivalent Circuits (continued) Pin No. 6 46.6 kΩ ICs for VCR Equivalent Circuit Description REC regulator 2 Voltage Remark D.C REC: ON 6  18 kΩ 101.2 kΩ 7 750 Ω 7 REC out A.C  9 9 REC curr. monitor (control) 200 Ω 800 Ω 8 75 kΩ 23 kΩ 23 kΩ 75 kΩ 69 kΩ 3.5 V 1.5 V 45 kΩ 9 kΩ Curr. emph. SW Input signal At open: Middle (Curr. emph. 5V 2.5 V 0V normal mode) 8 10 11  69 kΩ VCC REC AGC det D.C    200 Ω 20 200 Ω 12  GND   6 ICs for VCR s Terminal Equivalent Circuits (continued) Pin No. 13 10.5 kΩ 20 kΩ 2.7 V 200 Ω 13 AN3328S Equivalent Circuit Description REC input Voltage Remark 12 kΩ 20 kΩ 2.7 V 2V  14 80 Ω 3 kΩ 200 Ω 2.5 V 1.8 kΩ 14 PB out & REC / mute SW 46 kΩ At open: Low 1.8 V (REC Mute OFF) Input signal 69 kΩ 4.3 V 1.8 V 15 1.5 kΩ 1.5 kΩ Audio REC capacitor D.C 6k Ω 10.7k Ω 200 Ω  200 Ω 500 Ω 15 16 4.5kΩ REC / PB select SW Input signal At open: Low (PB-Mode) 5V 100 Ω 100 Ω 0V 23 kΩ 16 100 kΩ 69 kΩ 69 kΩ 2.5 V 7 8 HSW 1 16 REC / PB Low 2 15 3.3µF 3 HA1 AN3328S s Application Circuit Example 14 FM out REC/mute High 0.01 µF H 4 L 13 FM in 0.01 µF 5 HA2 12 0.01 µF 6 11 AGC Det 0.01 µF 0.01 µF Curr. Amp. 7 100 Ω 0.01 µF Curr. emph. SW 8 10 47 µF 9 12 Ω VCC 5V 100µH ICs for VCR