ICs for VCR AN3672NFBP Audio signal processor IC for HiFi VCR incorporating EIAJ sound multiplex system Unit: mm ■ Overview 48 33 32 14.0±0.3 17.2±0.4 (1.00) 49 17 16 ■ Features • Built-in EIAJ sound multiplex decoder • Full adjustment-free by SIF signal input • fO automatic adjustment of high precision VCO • Built-in pre/recording amplifier 0.35 +0.10 – 0.05 0.80 0.10 Seating plane (1.60) +0.10 0.20 – 0.05 1 (1.00) 1.3±0.1 2.85±0.20 64 1.3±0.1 0.1±0.1 The AN3672NFBP is a HiFi audio signal processor IC (NTSC) incorporating EIAJ sound multiplex decoder and pre/recording amplifier. An adjustment-free sound multiplex decoder is realized through both of fO automatic adjustment of high precision VCO by a reference signal (fSC) and an SIF (4.5 MHz inter-carrier sound intermediate frequency) signal input. 17.2±0.4 14.0±0.3 0° to 10° (0.80) QFH064-P-1414A ■ Applications • HiFi VCR 1 2 55 54 Sub REF Comp. Normal in Normal out RFC AGC det. 64 63 62 61 60 Amp. Logic Output SW L R Sub deem FM demod. 3.5fH VCO Sub det. R L Matrix Det. RFC Amp. Amp. Mute R L SW30 SW2 Input SW (L) VREF1 HiFi BS HiFi Mix. Mix. PNR R-ch. From pin 3 SW16 Normal Normal SW18 BS PNR R-ch. From pin 1 SW21 INSW mute R L Mute SW17 L SW19 SW31 INSW mute Input SW (R) R L SW22 Mix. COMP PB LPF PB LPF S/H SW noise Audio limit SW4 PC SW10 L-ch.BPF FM lim. R-ch.BPF PC SW9 Audio limit SW noise S/H SW12 L-ch. VCO Rec.LPF Mix. SW13 SW14 AGC Det. HOLD timing Liner SW Noise det. HPF Rec.LPF R-ch. VCO HA2 H SW11 L 17 18 19 20 21 22 23 32 N.R. det. 2 (L) N.R. REF (L) CCA out (L) Rec. DC1 COMMON HEAD2 P/R GND CCA out (R) 31 Noise det./ Rec. AGC det. 30 FM in 29 HA out (fO / BPF monitor) 28 Forced normal (Normal = L) common use for ENV-det. output 27 Audio FF input 26 Rec. DC2 25 P/R VCC 24 SW15 HA1 HEAD1 Cut amp. Rec. PB GND2 LED PORT 56 (Multi-value output) 57 Line out (L) 58 VCC2 (12 V) 59 RFC AGC out Line out (R) LOG amp. 48 Main deem Sub BPF ZZ-PROM 33 53 52 SIF / base band in 47 DC out DEM REF 46 AM demod. Main REF CUE BPF I2C clock I2C data Logic VCC REG fSC MTS mute CTL (H1 = Mute on) 4.5fH trap Logic GND 35 51 Rec. AGC adj. GND1 (R) PE VCC1 (5 V) 37 38 39 40 41 42 43 44 45 Logic Mute CTL Mute VCO-fO CTL adj. Logic 952 Hz BPF N.R. det. 1 (R) MTS VCC (5 V) DEM block N.R. det. 2 (R) 50 49 N.R. REF (R) Main out Sub-level det. AN3672NFBP ICs for VCR ■ Block Diagram 34 16 N.R. det. 1 (L) 15 Ext.2-IN (L) 14 36 13 12 11 10 9 8 7 6 5 4 3 2 1 Ext.1-IN (L) Sound multiplex output L IN-REF (L) GND1 (L) Ext.2-IN (R) Ext.1-IN (R) Sound multiplex output R IN-REF (R) VREF CUE det. Ext.3-IN (L) BS-IN (L) Ext.3-IN (R) BS-IN (R) ICs for VCR AN3672NFBP ■ Pin Descriptions Pin No. Description Pin No. Description 1 BS-IN (R) 32 CCA out (R) 2 Ext.3-IN (R) 33 N.R. REF (R-channel) 3 BS-IN (L) 34 N.R. det. 2 (R-channel) 4 Ext.3-IN (L) 35 N.R. det. 1 (R-channel: Weighting) 5 CUE det. 36 Mute-CTL pin 6 1/2 VCC1-VREF 37 Rec.-AGC adj. pin 7 IN-REF (R) 38 GND1 (R) 8 Sound multiplex output R 39 PE pin 9 Ext.1-IN (R) 40 VCC (VCC1 = 5 V) 10 Ext.2-IN (R) 41 Logic-GND 11 GND1 (L) 42 Serial clock input 12 IN-REF (L) 43 Serial data input 13 Sound multiplex output L 44 Logic-REG pin 14 Ext.1-IN (L) 45 Reference signal input pin for fO automatic 15 Ext.2-IN (L) adjustment 16 N.R. det. 1 (L-channel: Weighting) Sound multiplex mute-CTL pin 17 N.R. det. 2 (L-channel) 46 Main REF 18 N.R. REF (L-channel) 47 DEM REF 19 CCA out (L) 48 SIF / base band input 20 (+) Rec. amp. DCFB pin 49 Sub level det. 21 (+) Rec. amp. output and PB common pin 50 Main out (−) Rec. amp. output and PB-channel 2 51 MTS VCC (typ. = 5 V) input pin 52 DC out 23 Pre/rec.-GND 53 Line out (R-channel) 24 (−) Rec. amp. output and PB-channel 1 54 N.C. input pin 55 GND2 25 Pre/rec.-VCC 56 LED PORT 26 (−) Recording amplifier DCFB pin 57 Line out (L-channel) 27 Head switching pulse input for FM audio 58 VCC2 (typ. = 12 V) 28 Envelope detector and forced normal output 59 RFC out 29 Pre-amp. output / monitor output 60 RFC-AGC det. Rec.-mute CTL pin 61 Normal out Playback FM input 62 Normal in Normal identification noise detection and 63 Comp. rec.-AGC det. pin 64 Sub REF 22 30 31 3 AN3672NFBP ICs for VCR ■ Absolute Maximum Ratings Parameter Supply voltage Power dissipation Symbol Rating Unit VCC1 5.5 V VCC2 13.0 PD 798 mW Topr −20 to +75 °C Tstg −55 to +150 °C *1, 2 Operating ambient temperature Storage temperature *1 *1 Note) 1. The reverse insertion of this IC will cause its breakdown. 2. Use this IC paying attention to its surge breakdown. (Refer to "■ Usage Note" in detail.) 3. *1: Except for the power dissipation, operating ambient temperature and storage temperature, all ratings are for Ta = 25°C. *2: The power dissipation shown is the value for Ta = 75°C. (Refer to "■ Application Notes" in detail.) ■ Recommended Operating Range Parameter Supply voltage Symbol Range Unit VCC1 4.5 to 5.3 V VCC2 8.0 to 12.5 ■ Electrical Characteristics at VCC1 = 5 V, VCC2 = 12 V, Ta = 25°C 4 Parameter Symbol Min Typ Max Unit Circuit current (5 V) at recording ICCR1 Recording mode Measurement after adjusting fO Conditions 104 130 156 mA Circuit current (12 V) at recording ICCR2 Recording mode Measurement after adjusting fO 5 9 13 mA Circuit current (5 V) at playback ICCP1 Playback mode Measurement after adjusting fO 70 95 120 mA Circuit current (12 V) at playback ICCP2 Playback mode Measurement after adjusting fO 5 9 13 mA ENC out level 1-L VHRO1L VIN = −26.8 dBS, 1 kHz, DIN audio −11.5 −9.5 −7.5 dBS ENC out level 1-R VHRO1R VIN = −26.8 dBS, 1 kHz, DIN audio −11.5 −9.5 −7.5 dBS ENC out level 3-L VHRO3L VIN = −86.8 dBS, 1 kHz DIN audio, VHRO3L /VHRO1L −33 −30 −27 dB ENC out level 3-R VHRO3R VIN = −86.8 dBS, 1 kHz DIN audio, VHRO3R /VHRO1R −33 −30 −27 dB Normal recording out level VNRO VIN = −26.8 dBS, 1 kHz, Normal out −21.5 −20.0 −18.5 dBS Line out level L Gain = mode (0) VG2L VIN = −26.8 dBS, 1 kHz Gain = High −7.5 −6.0 −4.5 dBS Line out level R Gain = mode (0) VG2R VIN = −26.8 dBS, 1 kHz Gain = High −7.5 −6.0 −4.5 dBS Line out THD L THRML VIN = −26.8 dBS, 1 kHz 0.05 0.1 % Line out THD R THRMR VIN = −26.8 dBS, 1 kHz 0.05 0.1 % Line out VO-max L VMLOL fIN = 1 kHz, at output THD 3% 8.2 10.5 dBS Line out VO-max R VMLOR fIN = 1 kHz, at output THD 3% 8.2 10.5 dBS ICs for VCR AN3672NFBP ■ Electrical Characteristics at VCC1 = 5 V, VCC2 = 12 V, Ta = 25°C (continued) Parameter Symbol Conditions Min Typ Max Unit ENC out VO-max L VMFEL fIN = 1 kHz, at output THD 3% −4 0.3 dBS ENC out VO-max R VMFER fIN = 1 kHz, at output THD 3% −4 0.3 dBS RF conv. out level VRFC VIN = −26.8 dBS, 1 kHz BS monitor mode −8 −5 −2 dBS NHLOL RG = 6.8 kΩ, DIN audio 75 80 dB NHLOR RG = 6.8 kΩ, DIN audio 75 80 dB Line out S/N L Line out S/N R *1 Crosstalk between inputs 1 (Select the sound multiplex) CTIT Ext.1 ∼ Ext.3 in = −16.8 dBS 1 kHz, DIN audio −60 −55 dB Crosstalk between inputs 2 *1 (Ext.1-IN select) CTIE1 Sound multiplex Ext.2 ∼ Ext.3 in = −16.8 dBS 1 kHz, DIN audio −75 −65 dB Crosstalk between inputs 3 *1 (Ext.2-IN select) CTIE2 Sound multiplex Ext.1, Ext.3 in = −16.8 dBS 1 kHz, DIN audio −75 −65 dB Crosstalk between inputs 4 *1 (Ext.3-IN select) CTIE3 Sound multiplex Ext.1, Ext.2 in = −16.8 dBS 1 kHz, DIN audio −75 −65 dB Crosstalk between channels R→L *1 CTTRL Ext.1 in R-ch. = −16.8 dBS, 1 kHz DIN audio −80 −65 dB Crosstalk between channels L→R *1 CTTLR Ext.1 in L-ch. = −16.8 dBS, 1 kHz DIN audio −80 −65 dB Crosstalk between output mode 1 *1 (Normal select) CTHN HiFi, BS in = −16.8 dBS 1 kHz, DIN audio −75 −60 dB Crosstalk between output mode 2 *1 (HiFi select) CTNH HiFi, BS in = −16.8 dBS 1 kHz, DIN audio −75 −60 dB Crosstalk between output mode 3 *1 (BS monitor mode) CTNH HiFi, NOR in = −16.8 dBS 1 kHz, DIN audio −60 −55 dB Crosstalk between ENC out channels (R→L) CTENRL Ext.1 in R-ch. = −16.8 dBS, 1 kHz DIN audio −40 −30 dB Crosstalk between ENC out channels (L→R) CTENLR Ext.1 in L-ch. = −16.8 dBS, 1 kHz DIN audio −40 −30 dB Output muting ratio L *1 MuteL TV in = −16.8 dBS, 1 kHz, Gain = 1 DIN audio −60 −45 dB Output muting ratio R *1 MuteR TV in = −16.8 dBS, 1 kHz, Gain = 1 DIN audio −60 −45 dB VCO output frequency L (NTSC) fNL NTSC mode, non-modulation, after adjustment 1 292 1 300 1 308 kHz VCO output frequency R (NTSC) fNR NTSC mode, non-modulation, after adjustment 1 692 1 700 1 708 kHz VCO output L/R mix. ratio L FNLN NTSC mode, mode = (0, 1) 8.5 10 11.5 dB Note) *1: 10 dB should be reduced from the calculation result because of +10 dB increased input. 5 AN3672NFBP ICs for VCR ■ Electrical Characteristics at VCC1 = 5 V, VCC2 = 12 V, Ta = 25°C (continued) Parameter Symbol Conditions Typ Max Unit FM deviation L DEVL VIN = −26.8 dBS, 1 kHz 44 50 56 kHz FM deviation R DEVR VIN = −26.8 dBS, 1 kHz 44 50 56 kHz FM deviation L/R ratio DEVLR DEVR − DEVL −6 0 6 kHz FM modulation distortion L THFEL VIN = −26.8 dBS, 1 kHz, FM RF out 0.5 1.0 % FM modulation distortion R THFER VIN = −26.8 dBS, 1 kHz, FM RF out 0.5 1.0 % FM modulation S/N L NHFEL RG = 6.8 kΩ, DIN audio, FM RF out 33 40 dB FM modulation S/N R NHFER RG = 6.8 kΩ, DIN audio, FM RF out 33 40 dB 1.3 MHz BPF frequency characteristics 1 *2 BPF11 BPF monitor (L-ch.), fC = 1.3 MHz 70 140 210 mV[p-p] 1.3 MHz BPF frequency characteristics 2 *2 BPF12 fC = 1.45 MHz −10.0 −5.0 2.0 dB 1.3 MHz BPF frequency characteristics 3 *2 BPF13 fC = 1.15 MHz −4.0 − 0.5 3.0 dB 1.3 MHz BPF frequency characteristics 5 *2 BPF15 V(1.05M) / V(1.45M) −13 −1.5 7.0 dB 1.7 MHz BPF frequency characteristics 1 *2 BPF21 BPF monitor (R-ch.), NTSC mode fC = 1.7 MHz 70 140 210 mV[p-p] 1.7 MHz BPF frequency characteristics 2 *2 BPF22 fC = 1.85 MHz −6.0 0 3.5 dB 1.7 MHz BPF frequency characteristics 3 *2 BPF23 fC = 1.55 MHz −7.0 −1.6 3.0 dB PB out level 1-L *2 VHPO1L VIN = 50 kHz Dev., 1 kHz, Line out −7.5 −6.0 −4.5 dBS *2 VHPO1R VIN = 50 kHz Dev., 1 kHz, Line out −7.5 −6.0 −4.5 dBS −1.5 0 1.5 dB PB out level 1-R PB out level L/R ratio BHP PB out level 3-L *2 VHPO3L FMIN = 50 kHz −30 dB, DIN audio −66 −60 −54 dB PB out level 3-R *2 VHPO3R FMIN = 50 kHz −30 dB, DIN audio −66 −60 −54 dB NHPOL Non-modulation, Line out, DIN audio 75 80 dB PB out S/N L *2 PB out S/N R *2 NHPOR Non-modulation, Line out, DIN audio 75 80 dB *2 THPOL In: Dev = 100 kHz, f = 1 kHz Line out 0.2 0.8 % PB out distortion R *2 THPOR In: Dev = 100 kHz, f = 1 kHz Line out 0.2 0.8 % Crosstalk between PB out channels (R→L) *2 CTPRL VIN = 50 kHz Dev, 1 kHz DIN audio −80 −65 dB Crosstalk between PB out channels (L→R) *2 CTPLR VIN = 50 kHz Dev, 1 kHz DIN audio −80 −65 dB DOC on level DOC1 fCL = 1.3 MHz fCR = 1.7 MHz ±50 kHz Dev. 7 15 30 mV[p-p] DOC hysteresis DOC2 fCL = 1.3 MHz fCR = 1.7 MHz ±50 kHz Dev. 0.1 1.5 6.0 dB PB out distortion L Note) *2: PB-FM input level: Single 140 mV[p-p], Mix. 280 mV[p-p] 6 Min ICs for VCR AN3672NFBP ■ Electrical Characteristics at VCC1 = 5 V, VCC2 = 12 V, Ta = 25°C (continued) Parameter Symbol Conditions Min Typ Max Unit ND1 f = 150 kHz, ND mode = 0, 0 30 75 120 kHz Dev PB-ch.1 gain G2429 f = 1.5 MHz, 0.2 mV[p-p], AFF = High 70 76 82 dB PB-ch.2 gain G2229 f = 1.5 MHz, 0.2 mV[p-p], AFF = Low 70 76 82 dB Gain ratio between PB-channels G2422 Calculates the G2429 − G2229 −3 0 3 dB PB-ch.1 input referred noise N2429 Divide by gain after measuring noise level with 1 MHz BPF 0.7 1.2 µV[rms] PB-ch.2 input referred noise N2229 Divide by gain after measuring noise level with 1 MHz BPF 0.7 1.2 µV[rms] Forced normal on level 1 *2 Rec. output level (1.3 MHz component) I24L Measure the 1.3 MHz component of current output, (Radj = 33k), NOR 6 9 12 mA[p-p] Rec. output level (1.7 MHz component) I24R Measure the 1.7 MHz component of current output, (Radj = 33k), NOR 21 27 33 mA[p-p] Rec. output 2nd harmonic distortion (2.6 MHz/1.3 MHz component ratio) I2fL Measure the 2.6 MHz/1.3 MHz component of current output −40 −35 dB Rec. output 2nd harmonic distortion (3.4 MHz/1.7 MHz component ratio) I2fR Measure the 3.4 MHz/1.3 MHz component of current output −40 −35 dB Television sound multiplex demodulation block Note) Input level at 100% modulation Mono, L+R: 106 mV[rms] ( = 0.3 V[p-p]) Sub (L−R) carrier: 63.6 mV[rms] (BIL), 84.8 mV[rms] (Stereo) Unless otherwise specified, pre-emphasis = off Mono output level V0(Mon) f = 1 kHz, Mono, 100% modulation, −5.7 15 kHz LPF −3.7 −1.7 dBS Mono frequency characteristics (10 kHz) V1(Mon) f = 1 kHz, Mono, 100% modulation, −18 15 kHz LPF −14 −10 dB Mono distortion THD(Mon) f = 1 kHz, Mono, 100% modulation, 15 kHz LPF 0.3 1 % Mono S/N S/N(Mon) Non-signal, 15 kHz LPF 60 67 dB Channel balance CB(Mon) f = 1 kHz, Mono, 100% modulation, 15 kHz LPF −1 0 1 dB Sub output level V0(Sub) f = 1 kHz, BIL, 100% modulation, 15 kHz LPF −5.7 −3.7 −1.7 dBS Sub frequency characteristics (10 kHz) V1(Sub) f = 1 kHz, BIL, 100% modulation, 15 kHz LPF −20 −16 −12 dB Sub distortion THD(Sub) f = 1 kHz, BIL, 100% modulation, 15 kHz LPF 1 2 % Sub S/N S/N(Sub) Sub carrier + Cue (BIL), 15 kHz LPF 54 60 dB Sub carrier + Cue (BIL) −9 −4.3 −3 dB −5.7 −3.7 −1.7 dBS Sub detection sensitivity Stereo output level SD V1(st) f = 1 kHz, Stereo, 100% modulation, 15 kHz LPF Note) *2: PB-FM input level: Single 140 mV[p-p], Mix. 280 mV[p-p] (30-pin) 7 AN3672NFBP ICs for VCR ■ Electrical Characteristics at VCC1 = 5 V, VCC2 = 12 V, Ta = 25°C (continued) Parameter Symbol Conditions Min Typ Max Unit Television sound multiplex demodulation block (continued) Stereo separation 1 Sepr f = 1 kHz (L-only), 100% modulation, 15 kHz LPF 30 43 dB Stereo separation 2 Sepl f = 1 kHz (R-only), 100% modulation, 15 kHz LPF 30 43 dB f = 1 kHz (Stereo), 100% modulation 0.3 2 % Sub carrier + Cue (Stereo) 15 kHz LPF 54 60 dB Sub carrier + Cue (BIL) −11 −6.6 −4 dB Stereo distortion Stereo S/N CUE detection sensitivity THD(st) Vn(st) CD Crosstalk (Main→Sub) CTMS f = 1 kHz (BIL main), 100% modulation, 15 kHz LPF 54 60 dB Crosstalk (Sub→Main) CTSM f = 1 kHz (BIL sub), 100% modulation, 15 kHz LPF 54 60 dB Residual carrier (Main) LCM f = 1 kHz (BIL), 100% modulation 10 20 mV[rms] Residual carrier (Sub) LCS f = 1 kHz (BIL), 100% modulation 15 30 mV[rms] DC offset (Monaural) OMO Non-signal 20 100 mV DC offset (Stereo) OST Sub carrier signal, + Cue signal (Stereo) 20 100 mV DC offset (Main) OMA Sub carrier signal + Cue signal (BIL) Main 20 100 mV DC offset (Sub) OSB Sub carrier signal + Cue signal (BIL) Sub 20 100 mV Mute attenuation amount (Monaural) MMO f = 1 kHz (Mono), 100% modulation 65 80 dB Mute attenuation amount (Stereo) MST f = 1 kHz (Stereo), 100% modulation 65 80 dB Mute attenuation amount (Main) MMA f = 1 kHz (BIL), 100% modulation 65 80 dB Mute attenuation amount (Sub) MSB f = 1 kHz (BIL), 100% modulation 65 80 dB LED-PORT voltage 1 (Mono) LED1 Non-signal 0 0.1 0.4 V LED-PORT voltage 2 (Stereo) LED2 Sub carrier signal, + Cue signal (Stereo) 1.3 1.6 1.9 V LED-PORT voltage 3 (BIL) LED3 Sub carrier signal, + Cue signal (BIL) 2.7 3.1 4 V LOG amp. output 1 VLOG1 f = 440 Hz (Mono), 40% modulation 4 V LOG amp. output 2 VLOG2 f = 440 Hz (Mono), 10% modulation 1 V Output ratio of SIF to base band VOSIF Vi (SIF) = 90 dBµV, fm = 1 kHz Mono, 100% modulation, ratio to VO of base band − 0.5 0 0.5 dB SIF total harmonic distortion THDSIF Vi (SIF) = 90 dBµV, fm = 1 kHz, 100% modulation 0.3 1.0 % SIF detection block 8 ICs for VCR AN3672NFBP ■ Electrical Characteristics at VCC1 = 5 V, VCC2 = 12 V, Ta = 25°C (continued) • 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 Data input (high-level) VHDATA At VCC = 5 V 2.25 5 V Data input (low-level) VLDATA At VCC = 5 V 0 0.75 V Clock input (high-level) VHCLOC At VCC = 5 V 2.25 5 V Clock input (low-level) VLCLOC At VCC = 5 V 0 0.75 V Mute CTL input (high-level) VIHMUT Mute on 3.5 5 V Mute CTL input (low-level) VILMUT Mute off 0 1.5 V f = 150 kHz, Mode 01 Dev. 60 kHz Dev VRFCAG VIN = −16.8 dBS, f = 1 kHz 1.0 dBS Forced normal on level 2 RF conv. AGC level ND2 Normal rec. THD TNRO VIN = −26.8 dBS, f = 1 kHz 0.02 % Normal input crosstalk 1 (Line in R select) CTNRR Ext.1 in L = −16.8 dBS DIN audio −75 dB Normal input crosstalk 2 (Line in L select) CTNLL Ext.1 in R = −16.8 dBS DIN audio −75 dB Carrier 3rd harmonics L 3HDL RF recording out −50 dB Carrier 3rd harmonics R 3HDR RF recording out −50 dB 1.3 MHz BPF frequency characteristics 4 BPF14 1.7 MHz / 1.3 MHz −32 dB 1.3 MHz BPF frequency characteristics 6 BPF16 1.55 MHz / 1.15 MHz −15 dB 1.7 MHz BPF frequency characteristics 4 BPF24 2.1 MHz / 1.7 MHz −13 dB 1.7 MHz BPF frequency characteristics 5 BPF25 1.3 MHz / 1.7 MHz −26 dB 1.7 MHz BPF frequency characteristics 6 BPF26 1.45 MHz / 1385 MHz −8 dB BPF group delay difference (fO ±100 kHz) GDBPF Difference of fO ±100 kHz 500 ns VCO fO temperature dependency TVCO fO (T = −10°C) − fO (T = 75°C) 5 kHz Normal off delay time MON Define with FF timing 3 FF ENC attack time ENAT f = 5 kHz, VIN = typ.−20 dB 4 ms ENC recovery time ENRT f = 5 kHz, VIN = typ.−20 dB 65 ms HOLD pulse width HPUL Test mode, PB 10 µs ENV out 1 ENV1 1.3 MHz + 1.7 MHz mix. 70 mV[p-p] × 2 1.3 V ENV out 2 ENV2 1.3 MHz + 1.7 MHz mix. 280 mV[p-p] × 2 2.2 V HiFi rec. → PB crosstalk CTRP PB, VIN = −16.8 dBS, 1 kHz −79 dB 9 AN3672NFBP ICs for VCR ■ Terminal Equivalent Circuits (continued) Pin No. 1 Equivalent circuit Description Pin40 (VCC1) 6.8 kΩ 6.8 kΩ Voltage (typ.) BS-IN (R-channel): BS monitor-exclusive input pin Typical input level is 1 kHz, −26.8 dBS. 2.5 V Ext.3-IN (R-channel): Typical input level is 1 kHz, −26.8 dBS. 0V 1 400 kΩ 2 To VREF 6.8 kΩ 6.8 kΩ 6.8 kΩ Pin40 (VCC1) 2 600 Ω 59 kΩ 3 Refer to pin 1 BS-IN (L-channel) 4 Refer to pin 2 Ext.3-IN (L-channel) 5 Pin40 (VCC1) 5 2.5 V 0V Cancel of DC offset for Cue signal 2.5 V VREF 2.5 V 5.1 kΩ 600 Ω 4 kΩ 1 kΩ 3.06 kΩ 5.1 kΩ 5.1 kΩ 6 Pin40 (VCC1) 50 kΩ 6 60 kΩ 200 Ω 50 kΩ 10 200 Ω 40 kΩ ICs for VCR AN3672NFBP ■ Terminal Equivalent Circuits (continued) Pin No. 7 Equivalent circuit Description Pin40 (VCC1) 600 Ω 7 1.5 kΩ Voltage (typ.) IN-REF (R-channel): 2.05 V Sound multiplex output R: Tuner output pin 2.5 V 5.6 kΩ 5 kΩ 425 Ω 425 Ω 8 Pin51 (MTS VCC) 2 kΩ 850 Ω 1 kΩ 8 9 Refer to pin 2 Ext.1-IN (R-channel) 0V 10 Refer to pin 2 Ext.2-IN (R-channel) 0V GND1 (L-channel) 0V 11 12 Refer to pin 7 IN-REF (L-channel) 2.03 V 13 Refer to pin 8 Sound multiplex output L 2.5 V 14 Refer to pin 2 Ext.1-IN (L-channel) 0V 15 Refer to pin 2 Ext.2-IN (L-channel) 0V 16 N.R. det. 1 (L-channel): Pin for connection of weighting filter externally attached. Pin40 (VCC1) 16 17 Pin40 (VCC1) 2.5 V 650 Ω N.R. det. 2 (L-channel) 7.85 kΩ 500 Ω 500 Ω At non-signal: 0.4 V 15 kΩ At typical input: 0.7 V 17 1 kΩ 1 kΩ 50 Ω 11 AN3672NFBP ICs for VCR ■ Terminal Equivalent Circuits (continued) Pin No. Equivalent circuit 18 Pin40 (VCC1) 17 kΩ Description Voltage (typ.) N.R. REF (L-channel) 2.5 V CCA out (L-channel) 2.5 V 17 kΩ 200 Ω 18 8.5 kΩ 500 Ω 7.5 kΩ 7.5 kΩ 500 Ω 20 kΩ 26 kΩ 6.5 VREG 20 kΩ 47 kΩ 340 Ω 19 Refer to pin 32 20 Pin25 (P/R VCC) Pin21 5.75 kΩ 59 Ω 100 Ω 500 Ω 1 kΩ 200 Ω 100 Ω 600 Ω 20 21 7.7 Ω 480 Ω 7.7 Ω 12 2.5 V (Rec.) COMMON: Output pin of rec. (+) amp. at recording. Termination SW pin of COMMON at playback. 2.5 V (Rec.) 2 kΩ 59 Ω Pin25 (P/R VCC) 21 Rec. DC1: Pin for DC feedback of rec. (+) amp. 51 kΩ 0 V (PB) ICs for VCR AN3672NFBP ■ Terminal Equivalent Circuits (continued) Pin No. 22 Equivalent circuit Description P/R term 1: Output pin of rec. (−) amp. at recording. Head amp. input pin at playback. Pin25 (P/R VCC) 20 Ω 375 Ω Voltage (typ.) 2.5 V (Rec.) 0.7 V (PB) 59 Ω 22 5.95 kΩ 20 Ω 15 kΩ 23 24 Refer to pin 22 25 26 0V P/R term 2 At rec.: 2.5 V At PB: 0.7 V P/R VCC Refer to pin 20 27 P/R GND Rec. DC2: Pin for DC feedback of rec. (−) amp. Pin40 (VCC1) Pin25 2 kΩ 47.6 kΩ 5V 2.5 V Audio FF: High: 3.5 V to 5 V Low: 0 V to 1.5 V 5V 23 kΩ 27 1.7 kΩ 1.7 kΩ 28 0V Pin40 (VCC1) 1.7 kΩ 28 ENV-det.: 3.7 V or more at rec. fO adj. completion HA out: Common use for rec.-mute control pin 1.8 V 200 Ω 102 kΩ 29 Pin40 (VCC1) 500 Ω 30.6 kΩ 10.2 kΩ 29 10 kΩ 1 kΩ 30 FM in 30 0V 200 Ω 20 kΩ 13 AN3672NFBP ICs for VCR ■ Terminal Equivalent Circuits (continued) Pin No. Equivalent circuit 31 31 VCC1 VCC1 1.7 kΩ 3.4 kΩ Description P/R VCC 2 kΩ 1.7 kΩ Noise det. : At playback: N-det. At recording: Rec. AGC-det. CCA out (R-channel): Pin for connection of N.R.-emph. capacitor externally attached. 0V 102 kΩ 1.7 kΩ 68 kΩ 1.7 kΩ 61.2 kΩ 3.4 kΩ 1.75 kΩ 32 3.9 kΩ 32 Voltage (typ.) 200 Ω 12 kΩ NR-VREF 33 Refer to pin 18 N.R. REF (R-channel) 2.5 V 34 Refer to pin 17 N.R. det. 2 (R-channel) At non-signal: 0.4 V At typical input: 0.7 V 35 Refer to pin 16 N.R. det. 1 (R-channel) 2.5 V Mute CTL: Mute-on: 5 V Mute-off: 0 V or open 0V 36 Pin40 (VCC1) 13.6 kΩ 2.55 kΩ 36 600 Ω 3.4 kΩ 2.55 kΩ 500 kΩ 6.25 kΩ 37 Rec. AGC adj. Pin40 (VCC1) 1.7 V 200 Ω 200 Ω 38 14 10.2 kΩ 1.75 kΩ 37 10.2 kΩ 85 kΩ Pin25 (P/R VCC) GND1 (R-channel) 0V ICs for VCR AN3672NFBP ■ Terminal Equivalent Circuits (continued) Pin No. Equivalent circuit Description Voltage (typ.) PE 40 VCC1 5V 41 Logic GND 0V 39 39 42 Pin40 (VCC1) 3.4 kΩ 42 Clock: High: 2 V to 5 V Low: 0 V to 1 V 5V 1.7 kΩ 0V 1.7 kΩ 43 Pin40 (VCC1) 3.4 kΩ Data: High: 2 V to 5 V Low: 0 V to 1 V 5V 1.7 kΩ 43 0V 1.7 kΩ 44 Logic VCC REG Pin40 (VCC1) 3.3 V 44 51 kΩ 45 15 kΩ fSC Pin40 (VCC1) 45 0V 1 kΩ 200 Ω 20 kΩ 46 Refer to pin 64 Main REF 2.5 V 15 AN3672NFBP ICs for VCR ■ Terminal Equivalent Circuits (continued) Pin No. Equivalent circuit 47 Description Pin51 (MTS VCC) Voltage (typ.) DEM REF 2.5 V SIF / base band input 2.2 V Sub level det. 2.5 V Main out 2.5 V MTS VCC 5V 13.6 kΩ 600 Ω 47 600 Ω 8 kΩ 48 18 kΩ Pin51 (MTS VCC) 600 Ω 48 34 kΩ 10.5 kΩ 8 kΩ 10.2 kΩ 49 Pin51 (MTS VCC) 10.2 kΩ 600 Ω 49 600 Ω 50 10.2 kΩ Pin51 (MTS VCC) 20 kΩ 50 51 52 DC out Pin51 (MTS VCC) 200 Ω 52 600 Ω 45 kΩ 16 2.5 V ICs for VCR AN3672NFBP ■ Terminal Equivalent Circuits (continued) Pin No. Equivalent circuit 53 Description VCC2 Voltage (typ.) Line out (R-channel): Typical output level can be changed by serial setting. 6V 50 Ω 53 50 Ω 100 kΩ 24 kΩ 6.8 kΩ Same Same Same circuit circuit circuit as left as left as left 54 N.C. 55 GND2 0V LED PORT 0V Line out (L-channel) 6V VCC2 12 V RFC AGC out: Typical output level can be changed by serial setting. 6V 56 Pin51 (MTS VCC) 600 Ω 56 5.1 kΩ 57 Refer to pin 53 58 59 VCC2 50 Ω 59 100 kΩ 50 Ω 48 kΩ Same Same Same circuit circuit circuit 13.6 kΩ as left as left as left 60 RFC AGC det. Pin40 (VCC1) Non fixed 400 Ω 60 600 Ω 10.2 kΩ 20 kΩ 2 kΩ 17 AN3672NFBP ICs for VCR ■ Terminal Equivalent Circuits (continued) Pin No. Equivalent circuit 61 Description Pin40 (VCC1) Voltage (typ.) Normal out: Typical output level 1 kHz, −20 dBS 2.5 V Normal in: Typical output level 1 kHz, −20 dBS 2.5 V Comp. 2.5 V Sub REF 2.5 V 61 850 Ω 62 Pin40 (VCC1) 62 200 Ω 300 kΩ VREF 63 Pin51 (MTS VCC) 5.1 kΩ 600 Ω 63 600 Ω 5.1 kΩ 64 600 Ω 64 600 Ω 20 kΩ 20 kΩ 18 10.2 kΩ ICs for VCR AN3672NFBP ■ Usage Note When use this IC, note the following points. • Use paying attention to surge breakdown of this IC. (C = 200 pF, R = 0 Ω) Surge breakdown voltage Corresponding pins ±140 V to ±200 V 1, 3, 6, 17, 18, 20, 21 22, 24, 25, 33, 36, 53, 57 ±200 V or more Except for above listed pins ■ Application Notes 1. PD Ta curves of QFH064-P-1414A PD T a 2200 2155 2000 Glass epoxy board (50 × 50 × t0.8 mm3) Rth(j−a) = 58°C/W PD = 2155 mW (25°C) Power dissipation PD (mW) 1800 1600 1400 1330 1200 1000 Independent IC without a heat sink Rth(j−a) = 94°C/W PD = 1330 mW (25°C) 800 600 400 200 0 0 25 50 75 100 125 150 Ambient temperature Ta (°C) 2. Rec. amp. output's dependence on resistance (Pin 37) 35 IOUT (mA[p-p]) 30 25 20 15 10 5 0 10 20 30 40 50 60 70 Radj (kΩ) 19 AN3672NFBP ICs for VCR ■ Application Notes (continued) 3. I2C bus of this IC 1) Serial control timing specification (1) Start and stop conditions Data tBUF tLOW tr Clock Stop condition tSU;STO tHD;STA Start condition Stop condition (2) Data recognition condition Data line Stable state: data is valid. Data is variable. Data (Pin43) tf tHIGH Clock (Pin42) tSU;DAT tHD;DAT (3) Recommended operation condition Parameter Symbol Min Max Unit tBUF 4.7 µs tHD;STA 4.0 µs tLOW 4.7 µs tr 1 000 ns Setup time of stop condition tSU;STO 4.0 µs Data setup time tSU;DAT 250 ns tHIGH 4.0 µs tf 300 ns tHD;DAT 5.0 µs fSCL 0 100 kHz Bus free time between stop and start conditions Hold time start condition (The first clock pulse is generated after this period.) Low state hold time of clock Rise time of data and clock signal High state hold time of clock Fall time of data and clock signal Data hold time Clock frequency 20 ICs for VCR AN3672NFBP ■ Application Notes (continued) 3. I2C bus of this IC (continued) 2) Data specification (1) Slave address: 1 1 1 0 1 01 0 (2) Slave address format S SLAVE ADDR Start condition A Sub ADDR A Data BYTE Acknowledge bit A P Stop condition (3) Sub-address byte and data byte format: The underlined figures stand for the initial state. AN3672FBP Serial mode Sub D7 address (HEX) Rec. / PB 00 0 = PB 1 = Rec. 01 02 03 D6 D5 D4 D3 D2 HiFi input select 0, 0 = Sound multiplex 0, 1 = Ext.1 1, 0 = Ext.2 1, 1 = Ext.3 D1 D0 NOR input select 0, 0 = ×××× 0, 1 = R-ch. 1, 0 = L-ch. 1, 1 = R/L-mix. Line out gain 0 = −6.0 dBS 1 = −7.5 dBS Nor detection 0, 0 = High 0, 1 = MID 1, 0 = Low 1, 1 = Off Rec. FM mix. ratio 0, 0 = 11 dB 0, 1 = 10 dB 1, 0 = 9 dB 1, 1 = 8 dB Power save Rec. mode 0 = Off 0, 0 = NOR (0 dB) 1 = On 0, 1 = S-VHS (−2 dB) 1, 0 = Over rec. (2 dB) 1, 1 = ×××× Output mode select Output channel select 0, 0 = HiFi 0, 0 = Stereo 0, 1 = Mix. 0, 1 = L-ch. 1, 0 = NOR 1, 0 = R-ch. 1, 1 = BS mon 1, 1 = ×××× DOC select ENV select VCC2 select 0 = On 0 = ENV 0=9V 1 = Off (linear) 1 = 12 V 1 = FORCE NOR (0/5 V) HSW polarity 0 = Normal 1 = Reverse fO-adj. start fSC-SEL 0 = Off 0, 0 = 3.58 MHz 0, 1 = 4.43 MHz 1 = On 1, 0 = 7.16 MHz 1, 1 = 8.86 MHz HOLD-TEST ENC/sound multiplex test 0 = Off 0, 0 = Off 1 = On 0, 1 = Sound multiplex 1, 0 = ENC 1, 1 = Off fO-check 0 = Off 1 = On FM-test 0 = Off 1 = On 04 05 06 07 ZAP-mode 0 = DAC 1 = PROM fO monitor 0 = Off 1 = On 0 fixed INSW-mute 0 = Off 1 = On 08 09 A B TEST1 0 = Off 1 = On Adj 0 = Off 1 = On Bilingual mode CTL 0, 0 = BOTH 1, 0 = Sub 0,1 = Main 1,1 = ×××× Forced MON Sound mute 0 = Off 0 = Off 1 = On 1 = On Input select 0 = 4.5 MHz 1 = Base band 21 AN3672NFBP ICs for VCR ■ Application Notes (continued) 3. I2C bus of this IC (continued) 3) Auto increment function S SLAVE ADDR Start condition Sub ADDR * A A Data 0 A Data 1 A Data 2 Acknowledge bit A P Stop condition Sub ADDR Contents 10000000 00 to 03 data of sub ADDR can be (HEX: 80) 11000000 controlled by the above format. 00 to 05 data of sub ADDR can be (HEX: C0) controlled by the above format. Once the data is inputted as shown above, the specified sub-address data is set to Data 0, one increment data to Data 1, further one increment data to Data 2. In this way, the plural data can be controlled at one time. 4) VCO fO auto adjusting manual 1. Power on 2. Setting 1 (INSW mute = On) IC mode setting: Rec. (*0 D7 = 1) Power save = Off (*3 Except for D6 and D7 = 1) INSW Mute Serial Wait 1.5 s or more *6 D1 0→1 Ex. *6 0 0 0 0 0 0 1 0 3. Setting 2 (Selection of fSC frequency to be used.) Sub-address *6 D5 D4 fSC frequency 0 0 3.58 MHz Wait 0.1 s or more 0 1 1 0 4.43 MHz 7.16 MHz 1 1 8.86 MHz When you use fSC = 7.16 MHz, *6 0 0 1 0 0 0 1 0 Ex. fSC select INSW mute continues 4. Adjustment start (fO adj. start = On) fO adj. start Ex. Serial *6 D6 0→1 *6 Max. within 0.5 s 01100010 Setting hitherto continues 5. Adjustment completion Approx. 4 V ENV det. output (pin 28) potential Informs of completion with low to high Approx. 0.5 V 6. Setting cancellation fO adj. start = Off INSW mute. = Off Serial Serial *6 *6 D6 1 → 0 D1 1 → 0 7. Transmission of normal data Note) Input level of fSC is 100 mV[p-p] to 500 mV[p-p]. 22 ICs for VCR AN3672NFBP ■ Application Notes (continued) 3. I2C bus of this IC (continued) 5) Serial mode of sound multiplex Broadcasting signal Serial setting Sub address (B) D4 D3 Bilingual CTL Bilingual Stereo Mono Line out D2 Forced monaural LED-PORT (Pin 56) L-ch. R-ch. Contents 0 0 0 Main Sub Both min. 2.7 V to 0 1 0 Main Main Main (typ. 3.1 V) 1 0 0 Sub Sub Sub * * * * * * * * 1 Main Main Mono 0 L R Stereo min. 1.3 V to max. 1.9 V 1 L+R L+R Mono (typ. 1.6 V) * L+R L+R Mono max. 0.4 V (typ. 0.1 V) 6) Precautions on MTS application circuit (1) When an external input is selected with large amplitude noise into an input pin of television sound multiplex block, an appropriate signal to noise ratio is not always guaranteed. On use of SIF input, you can counter this problem by switching the setting from SIF to base band input through a serial control when using an external input. In this time, however, a timing control is required to return it to SIF in advance so as not to cause any shock noise which is likely to come out when HiFi input selector returns to television sound multiplex side. On use of a base band input, it is recommended that you perform muting outside to prevent from noise being inputted into television sound multiplex. (2) On use of television sound multiplex with a base band input, if you adjust an input level for 106 mV[rms] (= 300 mV[p-p]) with mono 100% modulation pre-emphasis off, the IC is in a state of an optimum separation. When you can not obtain an appropriate separation due to deviation of input signal frequency characteristics, however, you can adjust separation by fitting a volume of 100 kΩ between pin 47 and GND. As the IC is already adjusted for an optimum separation with the above reference input, you can substitute the input level adjusting volume for a separation adjustment. In this case, do not forget to set pin 47 to open. (3) On use of sound multiplex with SIF input, an SIF input level from a tuner be set to 90 dBµV ±10 dBµV against a typical RF electric field input. To get an appropriate separation without adjustment, you are required to use the flattest possible SIF-BPF band width that does not cause any delay time difference between main and sub in the range of 4.5 MHz ±42 kHz. Likewise, use the gain band width which is broad enough not to attenuate cue signal carrier where a main component of 4.5 MHz ±55 kHz. (4) In the tuner characteristics, a demodulation linearity must be set to 250% or more modulation to prevent the sub-carrier signal from being damaged by over-modulation of pre-emphasis in a higher band width. (5) The stereo modulator must be used with good characteristics and well-calibrated equipment at measurement of separation. When using SIF input, FM modulation factor must be tuned exactly so as to be ±25 kHz at mono 100% modulation and pre-emphasis off. At the same time, measurement must be done by using the LPF which can attenuate 20 dB or more at 30 kHz between line-out and AC level-meter. 23 AN3672NFBP ICs for VCR ■ Application Notes (continued) 3. I2C bus of this IC (continued) 6) Precaution on MTS application circuit (continued) (6) The case without adjustment (SIF mode) IC inside Input signal selection 47 3.3 µF 4.5 MHz BPF output 48 Tuner 4.5 MHz BPF 0.1 µF SIFDEMO VCA To sound multiplex circuit (7) The case adjustment is necessary (Base band mode) Separation adjustment 100 kΩ IC inside 47 Tuner To separation adjustment Base band signal 1 µF SIF-DEM A point 4.5 MHz BPF Input signal selection 48 SIFDEMO VCA To sound multiplex circuit Input level adjustment "A point" 106 mV[rms] (at 1 kHz, mono 100% Mod.) Note) Pin 47 must be open when separation is adjusted with the potentiometer of input level adjustment. 24 ICs for VCR AN3672NFBP ■ Application Notes (continued) 3. I2C bus of this IC (continued) 7) Descriptions on data bit function (1) Sub address 00000000 Note) The underlined values are for the initial status at power on. Function Rec./PB changeover HiFi input changeover NOR input changeover Value Conditions 0 HiFi-PB Mode 1 HiFi-EE (Rec.) Mode 00 Sound multiplex select 01 Ext.1 select (pin 9, pin 14 input) 10 Ext.2 select (pin 10, pin 15 input) 11 Ext.3 select (pin 2, pin 4 input) 00 Setting is disable. 01 R-channel selection of HiFi input signal 10 L-channel selection of HiFi input signal 11 L+R mixed selection of HiFi input signal (2) Sub address 00000001 Note) The underlined values are for the initial status at power on. Function Value Conditions 0 Line output 1 (typ. −6.0 dBS for typical input) 1 Line output 2 (typ. −7.5 dBS for typical input) Noise det. threshold value 00 High (Least to be NOR) (Normal det. level) 01 MID 10 Low 11 Off 00 HiFi select 01 HiFi + NOR mix. select 10 NOR select 11 BS monitor select 00 Stereo selection 01 L-ch. BPF monitor selection at L-ch. selection and PB 10 R-ch. BPF monitor selection at R-ch. selection and PB 11 Setting is disable. Output gain changeover Output mode changeover Output channel chengeover 25 AN3672NFBP ICs for VCR ■ Application Notes (continued) 3. I2C bus of this IC (continued) 7) Descriptions on data bit function (continued) (3) Sub address 00000010 Note) The underlined values are for the initial status at power on. Function FM mix. ratio at recording DOC select ENV select VCC2 selection Value Conditions 00 FM carrier R/L = 11 dB 01 FM carrier R/L = 10 dB 10 FM carrier R/L = 9 dB 11 FM carrier R/L = 8 dB 0 DOC on 1 DOC off 0 ENV on 1 Force NOR (0/5 V) 0 Select at using VCC2 = 9 V (output DC = 4.5 V) 1 Select at using VCC2 = 12 V (output DC = 6.0 V) (4) Sub address 00000011 Note) The underlined values are for the initial status at power on. Function Power save Rec. amp. mode HEAD SW mode 26 Value Conditions 0 Power save off 1 Power save on 00 Normal mode (0 dB) 01 S-VHS mode (−2 dB) 10 Over rec. mode (2 dB) 11 Prohibited 0 Normal mode AFF = H1, Ch.1 1 Turn over mode AFF = H1, Ch.2 ICs for VCR AN3672NFBP ■ Application Notes (continued) 3. I2C bus of this IC (continued) 7) Descriptions on data bit function (continued) (5) Sub address 00000110 Note) The underlined values are for the initial status at power on. Function Value Conditions ZAP mode 0 DAC mode (use for the inspection) 1 PROM mode VCO fO-adj. 0 fO-adj. off 1 fO-adj. start on 00 3.58 MHz select 01 4.43 MHz select 10 7.16 MHz select 11 8.86 MHz select 0 Check off 1 Check on INSW-mute 0 INSW-mute off (SW30, SW31) 1 INSW-mute on fSC select VCO fO-check (6) Sub address 00000111 Note) The underlined values are for the initial status at power on. Function Value Conditions fO monitor 0 Monitor off Pin 29 1 Monitor on Hold-test 0 Test mode off (use for the inspection) 1 Test mode on ENC/sound multiplex-test 00 Test mode off (use for the inspection) 01 Sound multiplex test mode on 10 ENC test mode on 11 Test mode off FM-test 0 Test mode off (use for the inspection) 1 Test mode on 27 AN3672NFBP ICs for VCR ■ Application Notes (continued) 3. I2C bus of this IC (continued) 7) Descriptions on data bit function (continued) (7) Sub address 00001011 Note) The underlined values are for the initial status at power on. Function Value Conditions Sound multiplex test 1 0 Test mode off (use for the inspection) 1 Test mode on (L-ch.: SIFOUT, R-ch.: 3.5fH BPF) Sound multiplex adj. test 0 Test mode off (use for the inspection) 1 Test mode on (L-ch.: 952 BPF, R-ch.: Sub De-emph.) Bilingual mode select 00 Both 01 Main 10 Sub 11 Setting is disable. 0 Forced mono off 1 Forced mono on 0 Sound multiplex mute off 1 Sound multiplex mute on 0 SIF 4.5 MHz input 1 Base band input Forced mono Sound multiplex mute Sound multiplex input select 8) Usage notes of I2C bus • Serial data transmission When transmitting one line of data, it is necessary to send the Start and Stop conditions at each transmission. To change a serial mode setting, you can change it by sending one line of the changed data. 28 Stop ACK Data ACK Sub address 3rd line of data 4th line of data Stop ACK Data ACK Sub address ACK Address Stop Start ACK Data ACK Sub address ACK Address 2nd line of data Start 1st line of data ACK Address Stop Start ACK Data ACK Sub address ACK Address Start < Example: In case of sending all data of four lines > 52 62 63 64 0.47 µF 1 µF Sub REF Comp. Normal in Normal out 1 kHz, −20 dBS 60 61 22 µF 53 N.C. 54 55 56 100 Ω 10 µF 57 58 10 µF 59 100 Ω 10 µF 0.1 µF 1 kHz, −20 dBS 10 µF RFC AGC det. RFC AGC out GND2 LED PORT (Multi-values output) Line out (L) VCC2 (12 V) Line out (R) DC out 1 µF 51 0.1 µF MTS VCC (5 V) SIF IN Base band IN 50 Open 10 µF 3.3 µF SIF input 1 µF Main out 46 Main REF DEM REF 49 37 38 39 40 41 42 43 44 45 33 kΩ 1 µF Rec. AGC adj. GND1 (R) PE VCC1 (5 V) Logic GND I2C clock I2C data Logic VCC REG 10 µF fSC MTS mute CTL (H1 = Mute on) SIF input 10 µF 34 16 15 35 N.R. det. 1 (R) 33 µF Mute CTL (High = Mute on) 36 12 11 10 9 8 7 6 100 kΩ 48 33 µF N.R. det. 1 (L) Ext.2-IN (L) 14 13 4.7 µF Sound multiplex output L Ext.1-IN (L) Zero bias input 1 kHz, −26.8 dBS 10 µF IN-REF (L) GND1 (L) Ext.2-IN (R) Ext.1-IN (R) Sound multiplex 4.7 µF output R IN-REF (R) 10 µF VREF Zero bias input 1 kHz, −26.8 dBS N.R. det. 2 (R) Base band N.R. REF (R) VCC (Pin 51) Sub-level det. (Serial setting at 33k: NOR→25 mA[p-p]/ch. SVHS→20 mA[p-p]/ch. Over-rec.→30 mA[p-p]/ch.) Can be adjusted also at base-band input 0.01 µF P/R GND 17 18 10 µF HEAD2 HEAD1 N.R. det. 2 (L) N.R. REF (L) CCA out (L) Rec. DC1 COMMON 10 µF 19 0.015 µF 20 0.1 µF 21 22 23 32 0.015 µF CCA out (R) 31 Noise det./ Rec. AGC det. Rec. mute (L) 30 0.22 µF FM in (Mute-off H1) 29 HA out (fO / BPF monitor) 28 Force NOR(NOR = L) common use for ENV-det. output 27 0.01 µF Audio FF input 26 Rec. DC2 25 0.1 µF P/R VCC 0.01 µF 24 ICs for VCR AN3672NFBP ■ Application Circuit Example 33 47 5 0.1 µF CUE det. 4 Ext.3-IN (L) 3 BS-IN (L) 2 Ext.3-IN R) 1 BS-IN (R) 29