NTE1860 Integrated Circuit TV Stereo Multiplexing Decoder Description: The NTE1860 is a bipolar IC for use in TV stereo multiplexing decoding, filters for stereo, and SAP (Separate Audio Program) demodulation applications. Features: D Low number of external parts D Excellent channel separation characteristics for stereo applications. Min. 46dB at 1kHz. D Selection of individual modes of MAIN/SAP/BOTH. D Direct driving mode for LED display. Absolute Maximum Ratings: (TA = 25°C) Power Supply Voltage, VCC . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 17V Allowed Power Dissipation, PD . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1800mW Individual Controlling Pins, V14 to 17, V20 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . VCC + 0.3V LED Driving Current, ILED . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 25mA Operating Temperature, Topr . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . −10° to +65°C Storage Temperature, Tstg . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . −55° to +150°C Recommended Operating Condition: Power Supply Voltage, VCC . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 9.0 ± 0.5V Electrical Characteristics: (VCC = 9V, dBs = 0.775Vrms, TA = 25°C) Parameter Symbol Test Conditions Min Typ Max Unit SAP Noise Level VSAP,N Pin1 Input 5fH (−14.4dBs) Pin25 Output 15kHz LPF is attached. − −40 −36 dB SAP Carrier Leakage CLSAP Pin1 Input 5fH (−14.4dBs) Pin25 Output − −33 −30 dB SAP Carrier Detecting Sensitivity SCARR Pin1 Input 5fH −29.0 −25.0 −21.5 Input level during LED of Pin18 is lighting on dB Pin1 Input SAP 10kHz 100% (−14.4dBs) Pin25 Output 15kHz lPF is attached dB SAP Frequency Characteristics 10kHz ASAP −4.0 −1.5 2.0 Electrical Characteristics (Cont’d): (VCC = 9V, dBs = 0.775Vrms, TA = 25°C) Parameter SAP Output Level SAP Distortion Ratio Symbol Test Conditions Min Typ Max Unit VSAP Pin1 Input SAP 1kHz 100% (−14.4dBs) Pin25 Output 15kHz LPF is attached −0.8 −0.1 0.6 dB THDSAP Pin1 Input SAP 1kHz 100% (−14.4dBs) Pin25 Output 15kHz LPF is attached − 4.0 8.0 % SAP BPF Frequency Characteristics 5fH A BPF 5fH Pin1 Input 5fH (−14.4dBs) Pin6 Output −16 −13.5 −12.5 dB SAP BPF Frequency Characteristics 3fH A BPF 3fH Pin1 Input 3fH (−14.4dBs) Pin6 Output − −32.5 −29.5 dB − −31.6 −29.5 dB SAP BPF Frequency Characteristics 6.5fH SAP Detecting Characteristics A BPF 6.5fH Pin1 Input 6.5fH (−14.4dBs) Pin6 Output VSAP FM Pin8 Input 63.37kHz (−14.4dBs) 93.67kHz (−14.4dBs) Pin25 Output 100 110 118 mV/kHz SAP Muting Attenutation Amount ATSAP Pin8 Input SAP 1kHz 100% (−14.4dBs) Pin25 Output − −68 −65 dB MONAURAL Noise Level VST NM Non−input Pin23 Output 15kHz LPF is attached − −75 −70 dB STEREO Noise Level VST NS Pin1 fH (−24dBs) Pin40 to Pin41 −6dB ATT Pin24 Output 15kHz LPF is attached − −70 −66 dB MAIN Output Level VMAIN Pin1 Input 1kHz (−10dBs) 75µs de−emphasis is attached Pin23 Output 15kHz LPF is attached −5.6 −5.0 −4.6 dB SUB Detecting Level VSUB Pin1 Input SUB 1kHz 100% Pin40 to Pin41 −6dB ATT Pin24 Output 15kHz LPF is attached −12 − −9 dB THDMONO Pin1 Input 1kHz (−10dBs) Pin23 Output 15kHz LPF is attached − 0.25 0.50 % STEREO Distortion THDSTE Pin1 Input SUB 1kHz 100% Pin24 Output 15kHz LPF is attached − 0.75 1.20 % Pilot Cancel (L + R) PCL + R Pin1 Input fH (−24dBs) 75µs de−emphasis is attached Pin23 Output fH BPF is attached − −57.0 −51.5 Pilot Cancel (L − R) PCL − R Pin1 Input fH (−24dBs) Pin40 to Pin41 −6dB ATT Pin24 Output fH BPF is attached − MONAURAL Distortion Ratio −41 −35 dB dB Electrical Characteristics (Cont’d): (VCC = 9V, dBs = 0.775Vrms, TA = 25°C) Parameter Symbol Test Conditions Min Typ Max Unit MAIN Balance Between Channels CBMAIN Pin34 Input fH (−18dBs) Input 1kHz (−4dBs) to Pin28 and find the output level difference between Pin22 and Pin23 by measuring the outputs of Pin22 and Pin23 independently −0.3 0 0.3 dB SUB Balance Between Channels CBSUB Input 1kHz (−4dBs) to Pin27 and find the output level difference between Pin22 and Pin23 by measuring the outputs of Pin22 and Pin23 independently. The above applicable to Pin28 except that non−input to Pin28. −0.3 0 0.3 dB Separation Check 1kHz SEP1k Pin1 input L Ch 100% DSB 1kHz Measure phase difference between the outputs of Pin24 and Pin23. 46 60 − dB Crosstalk (L − R) ↔ (SAP) CTL−R SAP Pin26 and Pin41 Input 1kHz (−4dBs) Pin24 Output +1kHz BPF − −80 −67 dB Crosstalk L ↔ SAP CTLSAP Pin27 and Pin28 Output 1kHz (−4dBs) Pin23 Output + 1kHz BPF − −80 −74 dB Crosstalk R ↔ SAP CTRSAP Pin27 and Pin28 Input 1kHz (−4dBs) Pin22 Output + 1kHz BPF − −80 −74 dB − −45 −36 dB −5.2 −4.3 −2.8 dB − −52 −43 dB −6.5 −5.3 −4.0 dB Stereo LPF Frequency Characteristics (6fH) ALP1 6fH Pin1 Input 6fH (−10dBs) Pin37 Output (L + R) LPF Frequency Characteristics (12kHz) ALP2 12k Pin34 Input 12kHz (−4dBs) Pin29 Output (L + R) LPF Frequency Characteristics (2fH) ALP2 2fH Pin34 Input 2fH (−4dBs) Pin29 Output L − R LPF Frequency Characteristics (12kHz) ALP3 12k Pin26 Input 12kHz (−4dBs) Pin24 Output L − R LPF Frequency Characteristics (2fH) ALP3 2fH Pin26 Input 2fH (−4dBs) Pin24 Output − −52 −43 dB Stereo Capture Range LOW CRLO Pin34 Input fH vicinity (−18dBs) Measure the input frequency when the LED of Pin19 goes on and off by changing the burst signal frequency − − 14.95 kHz Stereo Capture Range HIGH CRHI Pin35 and Pin36, 1µF and 4.7µF 16.52 560Ω − − kHz Parameter Symbol During Forced Monaural Crosstalk (L) CTL During Forced Monaural Crosstalk (R) CTR Test Conditions Min Typ Max Unit Pin27 Input 1kHz (−4dBs) Pin23 Output +1kHz BPF − −80 −74 dB Pin27 Input 1kHz (−4dBs) Pin22 Output +1kHz BPF − −80 −74 dB Electrical Characteristics (Cont’d): (VCC = 9V, dBs = 0.775Vrms, TA = 25°C) Parameter Symbol Test Conditions Pin27 Input 1kHz (−4dBs) Pin22 and Pin23 Output +15kHz LPF Min Typ Max Unit − −80 −74 dB Muting SW V15 High Muting Attenuation Amount (L) (R) ATST L DC Offset Voltage while Muting and Stereo are turned on VOMU ST During no−input −50 5 50 mV DC Offset Voltage while Muting and SAP are turned on VOMU SAP During no−input −120 −20 120 mV DC Offset Voltage while SAP and Monaural are turned on VOSAP MO During no−input −50 0 50 mV DC Offset Voltage while SAP and Stereo are turned on VOSAP ST During no−input −120 0 120 mV DC Offset Voltage while Stereo and Monaural are turned on VOST MO During no−input −120 −20 120 mV 25 36 48 mA Circuit Current ICC V14, V15, V16 and V17 Controlling Voltage (L) VX L GND − 1.0 V V14, V15, V16, and V17 Controlling Voltage (H) VX H 2.5 − VCC V V13 and V20 Controlling Voltage (L) VZ L GND − 1.0 V V13 and V20 Controlling Voltage (M) VZ M 2.5 − 5.5 V V13 and V20 Controlling Voltage (H) VZ H 8.0 − VCC V Pin30 and Pin31 10µF fH level is variable 12 26 39 mVrms Pin9 DC 6.7 − − V Stereo Discriminating Level Regulator Voltage STE Vth VREG Value of inflowing current into Pin42 Note 1. This device is for REPLACEMENT ONLY! No design information is available. Pin Connection Diagram MPX Input 1 42 VCC N.C. 2 41 (L+R) Switch Input Stereo Filter Adjust 3 40 (L+R) Detector Output SAP Filter Adjust 4 39 TP Bias 5 38 N.C. SAP BPF Output 6 37 Stereo LPF Output N.C. 7 36 Phase Det (+) SAP Detector Input 8 35 Phase Det (−) Reg Out 6.7V 9 34 Stereo Input SAP VCO Adjust 10 33 Stereo GND Car Det 11 32 ST VCO Adjust SAP GND 12 31 Pilot Det (+) SAP SQU Inhibit 13 30 Pilot Det (−) SAP Mute 14 29 L+R Output Mute 15 28 Matrix L+R Input MS 1 16 27 Matrix L+R/SAP Input MS 0 17 26 SAP Switch Input SAP Ind Drive 18 Stereo Ind Drive 19 25 SAP Det Output 24 (L+R) SAP Output Forced Monaural 20 23 Line Output L LED GND 21 22 Line Output R 42 22 1 21 1.503 (38.2) Max .519 (13.2) .217 (5.5) .070 (1.78) .119 (3.0) .600 (15.24)