CXA1518S

CXA1518Q/S EIAJ Sound Multiplexing Decoder Description The CXA1518Q/S are bipolar ICs designed for EIAJ TV sound multiplexing decoders. These ICs provide various functions including sound multiplexing demodulation, broadcast mode discrimination (stereo/bilingual discrimination display), mode display, and muting. Features • External parts greatly reduced with a built-in active filter. • Count down can be used for broadcast mode discrimination so that adjustment for discrimination system (Q-OSC) is not required. • Output level of 380 mVrms (1 kHz, MONO, 100 %) • Forced monaural operates with both stereo and bilingual broadcasts. • Built-in digital facsimile interference elimination filter. • Low supply voltage (VCC=5 V) • The pin configuration of the CXA1518S is identical to that of the CXA1138AS. Applications • Color TVs • Hi-Fi VCRs • Liquid crystal TVs Structure Bipolar silicon monolithic IC CXA1518Q 32 pin QFP (Plastic) CXA1518S 22 pin SDIP (Plastic) Absolute Maximum Ratings (Ta=25 °C) [Pin numbers shown are for the CXA1518S.] • Supply voltage VCC 10 • Input signal (Pin 6) VIS 0.6 • Control voltage (Pins 12, 13, 14) VIC VCC • Operating temperature Topr • Storage temperature Tstg • Allowable power dissipation PD –20 to +75 –65 to +150 900 470 • LED drive current Operating Voltage 6.0 to 4.5 Iled 10 V Vp-p V °C °C mW (SDIP) mW (QFP) mA V Sony reserves the right to change products and specifications without prior notice. This information does not convey any license by any implication or otherwise under any patents or other right. Application circuits shown, if any, are typical examples illustrating the operation of the devices. Sony cannot assume responsibility for any problems arising out of the use of these circuits. —1— E92604A79-TE CXA1518Q/S MCOUT 24 23 22 21 20 19 18 17 TEST MAIN DEEM MATRIX SCIN 25 SCOUT 26 NC 27 FM SUBI 28 BIAS DEMOD GND 29 CURRENT FLAJ 30 REFL 31 VCC 32 IBIAS VOLTAGE REGULATOR BUFFER BIAS VOLTAGE INAMP 1 NC 2 NC 3 MPXIN MPX SIGNAL 4 NC 5 NC 6 NC 7 CUBI 8 NC SUB BPF 4.5fH TRAP CUE BPF 3.5fH VCO AM DEMOD 952HZ BPF SUB DET SUB DEEM MAIN SUB L R OUTPUTAMP & OUTPUT SW CUE CARRIER MOUT MAIN OUT 16 FOMO CONT 15 MUTE 14 MODE 13 NC 12 NC LED DRIVE 11 LEDMAIN 10 LEDSUB 9 COMP LEDST M OUT FOMO Block Diagram CXA1518Q I 2 L LOGIC 3.5fH 952HZ CLOCK CLOCK CXA1518S MC OUT SC OUT R OUT MODE 12 CONT MAIN FM DEMOD SUB BPF BIAS CURRENT BUFFER MAIN DEEM CUE CARRIER 11 LEDMAIN L OUT MUTE 13 I 2 L LOGIC 3.5fH 952HZ CLOCK CLOCK 10 LEDSUB MC IN SC IN SUBI 22 21 20 19 TEST L 18 17 ROUT LOUT MCIN NC NC NC 16 15 14 SUB DEEM MATRIX R SUB OUTPUTAMP & OUTPUT SW MAINOUT SUB DET 4.5fH TRAP BIAS VOLTAGE IN AMP CUE BPF MPX SIGNAL 5 NC 6 MPX IN 7 NC AM DEMOD 3.5fH VCO 952HZ BPF COMP IBIAS VOLTAGE REGULATOR LED DRIVE 1 GND 2 FLAJ 3 REFL 4 VCC 8 CUBI 9 LEDST —2— CXA1518Q/S Pin Description Pin No. Symbol SDIP QFP 1 29 GND (Ta=25 °C, VCC=5 V) Pin voltage 0 Equivalent circuit Pin numbers in brackets are for the CXA1518Q. Description GND VCC VCC 10k 2 30 FLAJ 2.4 V 147 2 (30) 40µ GND 80k Filter adjustment pin VCC 54k 1.5k VCC 14k 14k 3 3 31 REFL 2.5 V (31) Connects noise elimination filter of internal reference power supply. 20k 4 32 VCC — VCC 147 90k 30k 80µ 2.5V GND Power supply pin 6 3 MPXIN 2.5 V 6 (3) 25k Sound multiplexing signal input. Standard input level=70 mVrms (MONO 100 %) VCC 1k 147 8 (7) 40k 40k VCC 8 7 CUBI 2.4 V 11k 2k 2.5V Connects bias capacitor for Cue pulse generator. —3— CXA1518Q/S Pin No. Symbol SDIP QFP 9 9 LEDST Pin voltage Equivalent circuit VCC VCC VCC 147 9 147 10 Description 10 10 LEDSU — 147 11 64k 64k 16k Connects the LEDs to display each mode. Pin 9: Stereo Pin 10: Sub Pin 11: Main 64k 16k GND 11 11 LEDM 16k VCC 147 16k 2.4V 8k 16k VCC 20µA 12 14 MODE — 12 (14) Switches the output mode with the DC voltage during bilingual broadcasting. GND VCC 8k VCC 13 15 MUTE — 13 (15) 147 32k 160k GND Output mute pin. When set to high, only DC is output from Pins 15, 16 and 17 (Pins 17, 18 and 20). VCC 147 1k 14 (16) 80k VCC 40µ 14 16 FOMO — GND Forced monaural pin. When set to high, monaural function (main) is forcibly set regardless of stereo and bilingual broadcasts and LEDs are extinguished. VCC VCC 147 14k 15 17 MOUT 2.4 V 15 (17) 32k 32k GND Main signal output pin. Always outputs the main signal component regardless of the broadcast mode. —4— CXA1518Q/S Pin No. Symbol SDIP QFP Pin voltage Equivalent circuit Description VCC VCC 147 14k 16 18 ROUT 2.4 V 16 (18) R-ch output pin 32k 32k GND VCC VCC 147 14k 17 20 LOUT 2.4 V 17 (20) 32k 32k GND L-ch output pin. During “TEST”, outputs the Cue signal component passed through the Cue BPF. VCC VCC VCC 147 18 22 MCIN 2.5 V 19 (24) 18 147 20P 147 147 16k 160µ 80µ GND Connects DC cut capacitor of the main signal. 19 24 MCOUT 1.7 V (22) 2.5V 80µ 20 25 SCIN 2.5 V 21 (26) 20 (25) VCC VCC 147 147 VCC 18p 147 5k 147 12k 2.5V 160µA 80µA 80µA GND Connects DC cut capacitor of the sub signal. 21 26 SCOUT 1.7 V VCC 80µ VCC 20µ 16k 15k 1k 2.5V 8k 1.4V 64k 8k 147 22 28 SUBI 2.4 V 22 (28) 147 Connects bias capacitor of the sub FM detector. Grounding this pin enables the TEST mode for filter adjustment. —5— CXA1518Q/S Pin No. Symbol SDIP QFP 1, 2 4, 5 6, 8 5, 7 NC 12, 13 19, 21 23, 27 Pin voltage Equivalent circuit Description — — Keep these pins open (They are not connected to the chip.) Electrical Characteristics Measurement Circuit (CXA1518S) SW1 C10 10µF MAIN OUT ON OFF SW6 15kHZ LPF SW2 CCIR FILTER MEASUREMENT SYSTEM RMS DISTORTION DC VOLT R OUT L OUT TEST (ON) SW4 NORM (OFF) C9 1µF SW3 C10 1µF E2 E3 E4 22 21 20 19 18 17 16 15 14 13 12 1 VR1 20K 2 3 4 A C1 10µF 5 6 7 C3 10µF 8 9 10 11 C4 10µF STEREO SUB MAIN R4 470 R1 22K C2 47µF SIGNAL SIG ATT E1 5V R2 470 R3 470 SW5 ∗ Set ATT such that the stereo separation (L → R) to minimum. —6— CXA1518Q/S Electrical Characteristics (Ta=25 °C, VCC=5 V) No. 1 Item Current consumption Symbol ICC SW conditions 1 Bias conditions 1 to Pin 4. Pin numbers shown in conditions are for the CXA1518S. Conditions Test point SDIP Pin 4 QFP Pin 32 Min. 14 Typ. 20 Max. 26 Unit mA Measures the input current Input signal: SIG1 2 Sub output level 400 Hz 2 VS1 4 and 3 Measures output amplitude at Pins 16 and 17 (400 Hz, sine wave) : Vs1 (15 k LPF) Input signal: SIG2 Measures output amplitude Pins 16 Pins 18 and 17 ∗1 and 20 330 380 480 mVrms Sub frequency 3 response characteristics 1 kHz FS1 4 2 and 3 at Pins 16 and 17 (1kHz, sine wave) : Vs2 Fs1=20 log Vs2 Vs1 (15 k LPF) Input signal: SIG3 Measures output amplitude Pins 16 Pins 18 and 17 ∗1 and 20 –1.6 –0.6 0 dB Sub frequency 4 response characteristics 10 kHz FS2 4 2 and 3 at Pins 16 and 17 (10 kHz, sine wave) : Vs3 Fs2=20 log Vs3 Vs1 (15 k LPF) Input signal: SIG2 Pins 16 Pins 18 and 17 ∗1 and 20 –19.0 –17.0 –14.7 dB 5 Sub distortion factor 2 DS 4 and 3 Measures output signal distortion factor at Pins 16 and 17 (1 kHz, sine wave). (15 k LPF) Input signal: SIG2 Pins 16 Pins 18 and 17 ∗1 and 20 — 1 2 % 2 6 Sub S/N NS 4 and 3 Measures S/N ratio of the outputs (1 kHz) at Pins 16 and 17. (15 k LPF. RMS) Input signal: SIG4 Pins 16 Pins 18 and 17 ∗1 and 20 58 62 — dB Stereo 7 distortion factor L ch Dst1 4 2 Measures output signal distortion factor at Pin 17 (1 kHz, sine wave). (15 k LPF) Input signal: SIG5 Pin 17 Pin 20 — 0.2 1.5 % Stereo 8 distortion factor R ch Dstr 4 2 Measures output signal distortion factor at Pin 16 (1 kHz, sine wave) (15 k LPF) Pin 16 Pin 18 — 0.2 1.5 % Stereo 9 output level L ch 1 kHz Vst1 4 2 Input signal: SIG4 Measures output amplitude at Pin 17 (1 kHz, sine wave). (15 k LPF) Pin 17 Pin 20 310 360 440 mVrms ∗1 When bias condition is [3], the test point is Pin 16 only. —7— CXA1518Q/S No. Item Stereo Symbol SW conditions Bias conditions Conditions Input signal: SIG5 Test point SDIP QFP Min. Typ. Max. Unit 10 output level R ch 1 kHz Main output Vstr 4 2 Measures output amplitude at Pin 16 (1 kHz, sine wave). (15 k LPF) Input signal: SIG6 Measures output signal at Pin 15 (400 Hz, sine wave). (15 k LPF) Input signal: SIG6 Measures output signal Pin 16 Pin 18 310 360 440 mVrms 11 level MAIN OUT Vm1 4 2 Pin 15 Pin 17 330 390 480 mVrms 12 Main output level Vm2 4 2 amplitude at Pins 16 and 17 (400 Hz, sine wave). (15 k LPF) Input signal: SIG7 Measures output amplitude at Pins 16 and 17 (1kHz, Pins 16 Pins 18 and 17 and 20 330 390 480 mVrms Main frequency 13 response characteristics 1 kHz Fm1 4 2 sine wave) : Vm3 Fm1=20 log Vm3 Vm2 (15 k LPF) Input signal: SIG8 Measures output amplitude at Pins 16 and 17 (10 kHz, Pins 16 Pins 18 and 17 and 20 –1.6 –0.6 0 dB Main frequency 14 response characteristics 10 kHz Fm2 4 2 sine wave): Vm4 Fm2=20 log Vm4 Vm2 (15 k LPF) Input signal: SIG7 Pin 15 Pin 17 –16.5 –14.5 –12.5 dB Main distortion 15 factor MAIN OUT Dm1 4 2 Measures output signal distortion factor at Pin 15 (1 kHz, sine wave). (15 k LPF) Input signal: SIG7 Measures output signal Dm2 4 2 distortion factor at Pins 16 and 17 (1 kHz, sine wave). (15 k LPF) Input signal: SIG9 Pins 16 Pins 18 and 17 and 20 — 0.2 1 % 16 Main distortion factor Pins 16 Pins 18 and 17 and 20 — 0.2 1 % Main distortion 17 factor at maximum input Dm3 4 2 Measures output signal distortion factor at Pins 16 and 17 (1 kHz, sine wave). (15 k LPF) Input signal: SIG7 Measures S/N ratio of Pins 16 Pins 18 and 17 and 20 — 0.3 3 % 18 Main S/N ratio Nm 4 2 outputs at Pins 16 and 17 (1 kHz). (15 k LPF. RMS) Pins 16 Pins 18 and 17 and 20 65 69 — dB —8— CXA1518Q/S No. Item Symbol SW conditions Bias conditions Sstr= Conditions Input signal: SIG4 Test point SDIP QFP Min. Typ. Max. Unit Stereo 19 separation L→R Sstr 4 2 20 log Pin17 output amplitude Pin 16 output amplitude (15 k LPF) Input signal: SIG5 Sstl= Pins 16 Pins 18 (dB) and 17 and 20 35 50 — dB Stereo 20 separation R→L Sstl 4 2 20 log Pin16 output amplitude Pin17 output amplitude (15 k LPF) Input signal: SIG15 Calculates the level difference between the output amplitude at Pins 16 and 17 Pins 16 Pins 18 (dB) and 17 and 20 35 50 — dB 21 Cross talk Main → Sub Cms1 2 2 (Vms1) and the measured value in measurement No. 13 (Vm3). Cms1=20 log Vm3 Vms1 (dB) Pins 16 Pins 18 and 17 and 20 52 59 — dB (15 k LPF, 1 k BPF) Input signal: SIG2 Calculates the level difference between the output amplitude at Pins 16 and 17 22 Cross talk Sub → Main Csm1 2 1 (Vsm1) and the measured value in measurement No. 3 (Vs2). Csm1=20 log VS2 Vsm1 (dB) Pins 16 Pins 18 and 17 and 20 59 66 — dB (15 k LPF, 1 k BPF) Input signal: SIG15 Calculates the level differCross talk 23 Main → Sub BOTH MODE Cms2 2 3 ence between the output amplitudes at Pin 16 (Vms2) and at Pin 17 (Vms3) Cms2=20 log Vms3 Vms2 (dB) Pins 16 Pins 18 and 17 and 20 52 58 — dB (15 k LPF, 1 k BPF) —9— CXA1518Q/S No. Item Symbol SW conditions Bias conditions Conditions Input signal: SIG2 Calculates the level difference between the output Test point SDIP QFP Min. Typ. Max. Unit Cross talk 24 Sub → Main BOTH MODE Csm2 2 3 amplitude at Pin 17 (Vsm2) and at Pin 16 (Vsm3). Csm2=20 log Vsm3 Vsm2 (dB) Pins 16 Pins 18 and 17 and 20 59 64 — dB (15 k LPF, 1 k BPF) Input signal: SIG11 25 Residual carrier Sub Lcs 3 2 Measures the amplitude of the subcarrier component of the output at Pins 16 and 17. Input signal: SIG11 26 Residual carrier Main Lcm 3 1 Measures the amplitude of the subcarrier component of the output at Pins 16 and 17. Input signal: SIG7 Calculate the level difference between the output amplitude at Pins 16 and 17 27 Mute volume Main Mm 2 4 (VMm) and the measured value in measurement No. 13 (Vm3). Mm=20 log Vm3 VMm (dB) Pins 16 Pins 18 and 17 and 20 70 80 — dB Pins 16 Pins 18 and 17 and 20 — 10 20 mVrms Pins 16 Pins 18 and 17 and 20 — 14 30 mVrms (1 k BPF, 15 k LPF) Input signal: SIG2 Calculates the level difference between the output amplitude at Pins 16 and 17 28 Mute volume Sub Ms 2 4 (VMs) and the measured value in measurement No. 3 (Vs2). Ms=20 log Vs2 VMs (dB) Pins 16 Pins 18 and 17 and 20 70 80 — dB (1 k BPF, 15 k LPF) Input signal: SIG4 and 5 Measures output signal level difference at Pins 16 and 17 under bias conditions 2 and 4. Mute volume Stereo 2 Mst 2 and 4 20 log Mst= measured value (mVrms) measured value under bias condition 4 (mVrms) (1 k BPF, 15 k LPF) Pins 16 Pins 18 and 20 ∗2 under bias condition 2 and 17 70 80 — dB 29 ∗2 Measure Pin 17 when input signal is SIG4, and Pin 16 when input signal is SIG5. —10— CXA1518Q/S No. Item Symbol SW conditions Bias conditions 2 Conditions Input signal: SIG18 Measures output DC level fluctuation at Pin 17 under bias conditions 2 and 4. Input signal: SIG18 Measures output DC level fluctuation at Pin 16 under bias conditions 2 and 4. Input signal: No input Measures output DC level fluctuation at Pin 15 under bias conditions 2 and 4. Input signal: SIG12 Varying SIG12, measures Test point SDIP QFP Min. Typ. Max. Unit 30 DC offset Stereo L ch Ostl 3 and 4 2 Pin 17 Pin 20 — 20 100 mV 31 DC offset Stereo R ch Ostr 3 and 4 2 Pin 16 Pin 18 — 20 100 mV 32 DC offset Main out Om 3 and 4 Pin 15 Pin 17 — 20 100 mV 33 Cue detector sensitivity CD 4 2 attenuation while switching from monaural to sound multiplexing mode. Input signal: SIG13 Varying SIG13, measures — — 8 11 17 dB 34 Sub detector sensitivity SD 4 2 attenuation while switching from monaural to sound multiplexing mode. Input signal: SIG14 — — 9 12 17 dB 35 Cue BPF gain CG 5 2 Measures output amplitude at Pin 17 Input signal: SIG16 and SIG17 Measuring output amplitude at Pin 22, measure the output signal level difference Pin 17 Pin 20 125 190 290 mVrms 36 4.5 fH trap attenuation level TG 6 2 when inputting SIG16 and when inputting SIG17. TG= measured value 20 log for SIG16 (mVrms) measured value for SIG17 (mVrms) Pin 22 Pin 28 20 35 — dB —11— CXA1518Q/S SW Condition Table SW No. 1 2 3 4 5 6 1 off off off on off off 2 off on off off off off 3 off off on off on on 4 off off off off on off 5 off off off off on on 6 off off off off off on BIAS Condition Table SW No. 1 2 3 4 E1 5V 5V 5V 5V E2 0.5 V 4.5 V 2.5 V 4.5 V E3 0.5 V 0.5 V 0.5 V 4.5 V E4 0.5 V 0.5 V 0.5 V 0.5 V —12— CXA1518Q/S Input Signal Definitions SIG1 : Sound MPX signal Main : 0 % Sub : 400 Hz, 100 % MOD Cue : Bilingual SIG2 : Sound MPX signal Main : 0 % Sub : 1 kHz, 100 % MOD Cue : Bilingual SIG3 : Sound MPX signal Main : 0 % Sub : 10 kHz, 100 % MOD Cue : Bilingual SIG4 : Sound MPX signal L ch : 1 kHz, 100 % R ch : 0 % Cue : Stereo SIG5 : Sound MPX signal L ch : 0 % R ch : 1 kHz, 100 % Cue : Stereo SIG6 : Sound MPX signal Main : 400 Hz, 100 % Sub : Carrier OFF Cue : Cue signal OFF SIG7 : Sound MPX signal Main : 1 kHz, 100 % Sub : Carrier OFF Cue : Cue signal OFF SIG8 : Sound MPX signal Main : 10 kHz, 100 % Sub : Carrier OFF Cue : Cue signal OFF SIG9 : Sound MPX signal Main : 1 kHz, 250 % Sub : Carrier OFF Cue : Cue signal OFF SIG10 : Sound MPX signal L ch : 1 kHz, 100 % R ch : 0 % Cue : Cue signal OFF SIG11 : Sound MPX signal Main : 0 % Sub : 0 % (carrier only) Cue : Bilingual SIG12 : Sound MPX signal Main : 0 % Sub : 0 % (carrier only) Cue : Bilingual (Level adjusted to the minimum) SIG13 : Sound MPX signal Main : 0 % Sub : 0 % (level adjusted to the minimum) Cue : Bilingual SIG14 : 55.069 kHz sine wave 5.6 mVrms SIG15 : Sound MPX signal Main : 1 kHz, 100 % Sub : 0 % (carrier only) Cue : Bilingual SIG16 : 31.47 kHz sine wave 42 mVrms SIG17 : 70.80 kHz sine wave 42 mVrms SIG18 : Sound MPX signal L ch : 0 % R ch : 0 % Cue : Stereo ∗ Sound MPX signal level is defined as monaural 100 % at 1 Vp-p. —13— CXA1518Q/S Output and LED ON/OFF Table MODE SW Broadcast status Stereo SUB BOTH MAIN × × × on × × × on Bilingual × × × × × × on × × × × × × Forced monaural off on × off off off on × × × Output status MUTE off off on off off off off on off on L R LED ON/OFF conditions SUB off off off on on off off off off off MAIN off off off off on on off off off off MAIN STEREO on off off off off off off off off off Monaural × : No response L R L+R L+R L+R L+R DC DC DC SUB SUB MAIN MAIN SUB MAIN MAIN MAIN MAIN MAIN MAIN MAIN DC DC DC MONO MONO MONO DC DC DC Control Voltage Range MODE SW Pin 12 (Pin 14) FORCED MONO Pin 14 (Pin 16) MUTE Pin 13 (Pin 15) SUB BOTH MAIN on off on off Pin numbers in brackets are for the CXA1518Q. Voltage range 4.0 V to VCC 2 V to 3 V 0 V to 0.5 V 3 V to VCC 0 V to 0.5 V (or OPEN) 3 V to VCC 0 V to 0.5 V (or OPEN) Description of Operation Pin numbers in brackets are for the CXA1518Q. The sound multiplexing signal input from Pin 6 (Pin 3) passes through IN AMP, and is added to the Cue BPF, SUB BPF and the MAIN de-emphasis circuits. 1 Discrimination system The Cue BPF passes only the Cue signal component of the multiplexing signal. The AM demodulator detects the amplitude modulation of the Cue signal (AM wave) and generates a sine wave of either 922.5 Hz (for bilingual) or 982.5 Hz (for stereo sound). COMP shapes the carrier-stripped Cue signal into a waveform, transforming it into pulses of either 922.5 Hz or 982.5 Hz, after which it is added to the LOGIC unit. A 3.5fH VCO generates a 3.5fH pulse locked to the Cue signal carrier wave (3.5fH), and sends it to the LOGIC unit. The LOGIC unit performs broadcast mode discrimination using the countdown method. From this result, and the existence/absence of a SUB signal from the SUB Detector, MUTE ON/OFF from CONT, MODE Switch, and the FOMO ON/OFF commands, the logic unit generates an output switchover control signal to control the output statuses of OUTPUT SW and MAIN OUT. —14— CXA1518Q/S 2 Main system MAIN DEEM applies de-emphasis on the MAIN signal component and removes the SUB and Cue components. After having passed through MAIN DEEM, the MAIN signal is added to MARTIX, OUTPUT AMP, and MAIN OUT. Sub system SUB BPF passes the SUB signal component of the multiplexed signal. A 4.5fH trap filter then removes the digital facsimile signal component. FM demodulation frequency demodulates the Sub signal. The SUB DEEM applies de-emphasis on the FM demodulated Sub signal and removes the carrier wave component. After passing through SUB DEEM, the SUB signal is added to MATRIX and OUTPUT AMP. Matrix and output system When broadcasting in stereo, MATRIX generates L and R signals by adding and subtracting the MAIN signal from MAIN DEEM and the SUB signal from SUB DEEM. OUTPUT AMP & OUTPUT SW switch the output signals as instructed by LOCIG. Note that MAIN OUT always outputs the MAIN signal component regardless of the broadcast mode. 3 4 Adjustment Methods 1. Preset before filter adjustment Japan sound multiplexing encoder MPX IN Application circuit VR2 TP1 Oscilloscope Fig. 1 Procedure 1) Connect as shown in Fig. 1 2) Set the encoder to MONO MODE, and input a 1 kHz signal to MPX IN. 3) Adjust VR2 until the level on TP1 (Pin 6) is 0.2 Vp-p (70 mVrms). (Pin 3 for the CXA1518Q) —15— CXA1518Q/S 2. Filter adjustment Japan sound multiplexing encoder MPX IN TEST SW4 VR1 L OUT Oscilloscope Application circuit Fig. 2 Procedure 1) Connect as shown in Fig. 2. 2) Set SW4 to TEST. (Turn SW6 OFF) 3) Put the encoder in stereo mode, and input only a modulated Q signal into MPX IN of the board. 4) Observing L.OUT with the oscilloscope, adjust VR1 until the Q signal output to be maximum. 3 Separation adjustment Japan sound multiplexing encoder Application circuit MPX IN R L Oscilloscope AC voltmeter VR2 L.OUT R.OUT CH1 CH2 1kHz BPF Switch Fig. 3 Procedure 1) Connect as shown in Fig. 3. (Set SW4 to NORM) 2) • Set the encoder to stereo mode and perform 100 % modulation of a 1 kHz signal. • Output only the L ch. 3) Observing the oscilloscope and the AC voltmeter, adjust VR2 until the R ch to be minimum. (Separation standard 35 dB or more) —16— CXA1518Q/S Application Circuit CXA1518Q MAIN OUT 17 16 15 SW3 SW2 OFF ON OFF ON MAIN BOTH SUB 29 30 31 C1 10µ A 32 1 2 3 4 5 6 7 8 12 11 10 9 MAIN SUB R6 2.4k R5 2.4k R4 470 R3 470 14 SW1 13 L OUT C8 1µ C7 10µ C6 C5 10µ 10µ 24 C9 1µ C10 NORM 10µ (OFF) 25 26 27 SW4 28 TEST (ON) R1 22k VR1 20k 23 22 21 20 19 18 R OUT R2 STEREO 470 C2 47µ VR2 1k C3 10µ 70mVRMS (MONO 100%) C4 10µ VCC 5V MPX IN ∗ Non-polar capacitor is recommended for C8 and C9. ∗ NC pin is left open. Application circuits shown are typical examples illustrating the operation of the devices. Sony cannot assume responsibility for any problems arising out of the use of these circuits or for any infringement of third party patent and other right due to same. —17— CXA1518Q/S CXA1518S C10 10µF TEST (ON) SW4 NORM (OFF) C9 1µF MAIN OUT R OUT L OUT R6 2.4k ON OFF C5 10µF ON MAIN R5 2.4k BOTH SUB C8 1µF C6 10µF C7 10µF 18 17 16 15 OFF SW3 SW2 SW1 13 12 22 21 20 19 14 1 VR1 20k 2 3 4 A C1 10µF 5 6 7 C3 10µF 8 9 10 11 C4 10µF STEREO SUB MAIN R4 470 R1 22k C2 47µF VR2 1K R2 470 R3 470 70mVRMS (MONO 100%) VCC 5V MPX IN ∗ Non-polar capacitor is recommended for C8 and C9. ∗ NC pin is left open. Application circuits shown are typical examples illustrating the operation of the devices. Sony cannot assume responsibility for any problems arising out of the use of these circuits or for any infringement of third party patent and other right due to same. —18— CXA1518Q/S De-emphasis characteristics SUB BPF frequency characteristics Output level (dB) Output level (dB) MAIN SUB 100 1k Frequency (Hz) 10k 0 –20 –40 –60 10 20 30 40 50 60 70 80 90 100 0 –5 –10 –15 Frequency (Hz) Cue BPF frequency characteristics 3 MAIN distortion characteristics Attenuation (dB) 2 0 –20 Distortion (%) 1 0.5 0 3.5fH–40k 3.5fH–20k 3.5fH 3.5fH+20k 3.5fH+40k Frequency (Hz) 100 200 300 MAIN degree of modulation factor (%) –40 –60 —19— CXA1518Q/S Package Outline CXA1518Q Unit : mm 32PIN QFP (PLASTIC) 9.0 ± 0.2 + 0.3 7.0 – 0.1 24 17 + 0.35 1.5 – 0.15 0.1 25 16 32 9 + 0.2 0.1 – 0.1 1 0.8 + 0.15 0.3 – 0.1 8 + 0.1 0.127 – 0.05 0° to 10° 0.24 M PACKAGE MATERIAL SONY CODE EIAJ CODE JEDEC CODE QFP-32P-L01 QFP032-P-0707 LEAD TREATMENT LEAD MATERIAL PACKAGE MASS EPOXY RESIN SOLDER PLATING 42 ALLOY 0.2g CXA1518S + 0.4 19.2 – 0.1 22PIN SDIP (PLASTIC) + 0.1 0.05 0.25 – 12 22 + 0.3 6.4 – 0.1 1 1.778 11 0.5 ± 0.1 + 0.15 0.9 – 0.1 + 0.15 3.25 – 0.2 0.51 MIN + 0.4 3.9 – 0.1 7.62 0° to 15° Two kinds of package surface: 1.All mat surface type. 2.All mirror surface type. PACKAGE STRUCTURE MOLDING COMPOUND SONY CODE EIAJ CODE JEDEC CODE SDIP-22P-01 SDIP022-P-0300 LEAD TREATMENT LEAD MATERIAL PACKAGE MASS EPOXY RESIN SOLDER PLATING COPPER ALLOY 0.95g —20— 0.50 (8.0)