SL1019P

d Semiconductor SL1019P AM TUNER SYSTEM Description The SL1019P is a AM electronic tuner IC with high performance. It is greatly improved cross modulation characteristics. Function • RF wide-band AGC, Attenuator Driver, Local OSC with ALC, Local OSC Buffer, Mixer, IF Amp, IF AGC, Detector, Signal Meter. Features • Low noise. • VCC variation compensation. • The local OSC buffer output facilitates designing of electronic tuner system, frequency display and etc. • The narrow band signal meter output is usable as auto search stop signal. • The excellent cross modulation characteristics prevent not only adjacent-channel interference but also interference caused by all channels with in broadcast band. • The OSC with ALC improves tracking error. • Double balanced differential MIX. • Recommended supply voltage : VCC = 8V • Operating Supply Voltage range : VCC = 7.5V ~ 12V Application • The AM car radios and the home receivers . Ordering Information Type NO. SL1019P Marking SL1019 Package Code DIP20 Outline Dimensions 10 1 unit : mm 0.89R 7.62 11 26.14 20 7o 7o 0.51 1.52 3.30 7.62 7.11 2.54 22.84 0.46 5o-7 o 0.25 KSI-W020-000 1 SL1019P Absolute Maximum Ratings Characteristics Supply Voltage Supply Current MIX Output and IF Amp Output Voltage MIX Input and RF Amp 1 Input Voltage Local OSC Current Power Dissipation Operating Temperature Storage Temperature (Ta = 25° C) Symbol VCC ICC VOUT VIN IOSC PD T opr T stg Rating 16 41 24 5.6 2 730 - 20 ~ + 70 - 40 ~ + 125 Unit V mA V V mA mW ℃ ℃ Block Diagram Local OSC Buffer Out 20 LOCAL OSC BUFFER ALC RF DETECTOR ATTENU ATOR DRIVER Local OSC2 19 Local OSC1 18 IF AGC 17 Signal Meter Out 16 Signal Meter In 15 V CC Detector Out 13 GND 12 Detector In 11 14 LOCAL OSC IF AGC SIGNAL METER IF DETEC TOR RF AGC RF AMP2 RF AMP2 MIX IF AMP 1 RF AGC Out 2 RF Amp2 In 3 RF AGC 4 ANT Damping Driver 5 GND 6 Mix In & RF Amp1 In 7 Mix Out 8 V CC 9 IF Amp In 10 IF Amp Out KSI-W020-000 2 SL1019P Test Circuit V V CC SM 7.5K 82 BFU 450CN V CC =8V 100uF + 2.7K IHF B.P.F Distortion meter Value voltmeter VO =8V, f r=1MHz, fm=400Hz 100K VT SVC 430pF 321 0.047uF ~20P 10K + 10K 3.3uF 0.047uF + 15 0.01uF 14 13 0.033uF + 4 7 u F0 . 4 7 u F (200~15kHz) V OSC 20 19 18 17 16 12 11 100 DBL1019 SL1019P 0.022uF =8V AM S.S.G Ant Dummy 15pF 30 50 65pF Vcc=8V 22uF 1 + 2 3 + 1uF 4 5 6 7 8 47uF + 9 0.0022uF 10 0.022uF 20pF 0.022uF x2 20pF 75 SBC536 0.0022uF 100uH 0.022uFx2 V 3.3mH 51 2SC5345 100K 2SK 315 T 100Kx2 V CC =8V V CC 0.022uF Electrical Characteristics (Unless otherwise specified, Ta=25℃ , VCC =8V, fr =1MHz,fm =400Hz ) Characteristics Quiescent Current Supply Current Detector Output Signal to Noise Ratio Symbol ICCQ ICC VOD1 VOD2 S/N THD1 Test Condition 130dB input μ 16dB input 30% mod. μ 74dB input 30% mod. μ 74dB input 30% mod. μ 74dB input 30% mod. μ 74dB input 80% mod. μ 130dB input 80% mod. μ Quiescent 130dB input μ Min. 13.5 20 -29 -15 51 3.5 Typ. 22.5 30 -25 -12 56 0.3 0.3 0.4 0 5 Max. 32.5 41 -21 -9 1 2 2 0.3 7.5 Unit mA mA dBm dBm dB % % % V V Total Harmonic Distortion THD2 THD3 Signal Meter Output VSM1 VSM2 KSI-W020-000 3 SL1019P Electrical Characteristics(continued) Characteristics Input Voltage at Signal Meter Output 1V Local OSC Buffer Output Quieting sensitivity Detection Output Variation Wide-Band AGC On State Input Local OSC Variation within broadcast band Symbol VIN Test Condition VSM = 1V Min. 18 320 - Typ. Max. Unit 24 380 25 0.2 30 dB μ mVrms dB μ dB VOSC (BUF) QS ΔVOD S/N = 20dB Input 74dB →130dB μ μ Interference1.4MHz Non mod. Reception 1MHz quiescent. Input for ANT Damping ON. VOSCL - V OSCH 74dB input, frequency μ at which output is reduced to 1/2 74dB input, frequency μ at which output is reduced to 1/10 30% mod ± 10kHz, WBAGC : “ OFF” fr = 600kHz, WBAGC : “ OFF” fr = 1400KHz, WBAGC : “ OFF” WBAGC - 82 - dB μ ΔVosc - 15 - mVrms VSM-BW1 Signal Meter Band VSM-BW2 - ±1.5 - KHz - 4.5/+7 43 77.5 52 - KHz Selectivity IF Interference Image Frequency Interference SEL IF.I. IM.I. - - dB dB dB Information in using IC 1. Use the bias condition in “RF VCC IF V CC “ 2. Avoid coupling between the antenna tuning circuit and the local OSC. 3. Connect detection capacitor (C15) between pin13(output) and pin14(VCC ) so that no leakage of the IF signal to the GND line occurs. If the capacitor C15 is connected to GND, the S/N ratio and the usable sensitivity may get worse. Radiation from C15 may cause harmonics in the IF signal to return to the RF stage, and the result may lead to more tweet interference. So, connect C 15 as close to pin 13,14 as possible. Consider the direction of the capacitor and separate it from the ANT circuit. 4. Use a semi-fixed resistor for R9 with VSM considered. 5. Consider the following conditions when designing the coils. The table is the input level at each pin at which the detection output at fm =400Hz 30% mod becomes -25 dBm. KSI-W020-000 4 SL1019P Information in using IC(Continued) Table. Stage Input level (dB ) μ ANT 16 MIX 28 IF 45 DET 61 * Each stage is applied input as shown below. ANT Stage MIX Stage 0.1uF 6 SL1019 SL1019P 50 1MHz 400Hz 30%mod 50 ANT Dummy 50 1MHz 400Hz 30%mod IF Stage 0.1uF 9 SL1019 SL1019P 50 450KHz 400Hz 30%mod 50 Det Stage 0.1uF 100 11 SL1019P SL1019 50 450KHz 400Hz 30%mod 50 6. To make the ANT damping constant within the receiving band, change the application circuit as shown below. ※Reference Circuit V CCRF ※Changing Circuit V CCRF R3 Double Tuning C8 2 R3 Double Tuning C8 2 ANT ANT + 1 C1 C2 CD L1 4 L2 +1 C7 R2 L2 C 1 C2 C7 R1 L1 R2 4 KSI-W020-000 5 Information in using IC(Continued) C D is 2000pF to 3000pF or there abouts L2 Damping(600kHz ~ 1400kHz) Reference Circuit: -15dB Changing Circuit : -4dB 7. The L2 is used to remove the SW band. SL1019P If the RF stage is double-tuned, the difference in sensitivity within the RF band almost disappears. thereby leading to worse spurious characteristic. 16 Signal 16Meter Output Vcc Wide Bend 2 AFC Input 6 Wide Bend AGC Vref Ge RF AGC 1 R C9 B 8. The SL1019P contains 2-channel wide-band AGC. The pin 6 detects and undesired signal within the RF band and wide-band AGC is applied. This detection sensitivity is determined inside the IC. The pin 2 detects and undesired signal outside the RF band. This detection sensitivity is determined by R3 . When 1mVrms(f=1MHz) signal is applied to pin 2, AGC operates. 9. In the AGC circuit of the test circuit the presence of an undesired signal of high strength within the receiving band may cause the desired signal to be suppressed when the desired signal is low or medium in strength. Shown below is the circuit configuration where the necessary measures are taken against this suppression. 10.The circuit shown below is available to stabilize the transient response of the signal meter output at the search stop mode. ANT Damping 4 ANT Damping Driver R 9 R A R A =4.3K R B =3.0K 13 R 10 R 11 17 RF AGC C1 9 + C18 10K 1K + Signal during searching from PLL 11. When using MW, no additional resistor is required But when using LW(approximately 50 ℃ or greater), additionally connect a resistor of 27KΩ across pins 18 and 19 against increase in local OSC level. 12. For improvement in image frequency interference change the RF double tuning coil as follows, and the image frequency interference becomes 63dB at fr = 1400KHz (Q point of the tuning circuit must not be decreased with tuning resistor 100K ) Ω KSI-W020-000 6 SL1019P Information in using IC (Continued) 8V 75 Pin2 0.022uF 100K + 22uF 100K Pin1 V 0.022uF T T1 T2 0.022uF Pin6 13. Shown below is cross modulation characteristic. Output A 80 A: Desired signal 83dB 400Hz 30% μ 80 B mod. The strength of an undesired signal (non mod) causes the desired signal to be suppressed. B: Desired signal 80dB non-mod. μ 16 50 16 16 0.1uF 30 15pF 65pF Testing Method 50 The strength of an undesired signal (40Hz 80% mod) causes interference to occur. 2-Signal Pad Dummy ANT KSI-W020-000 7 SL1019P COIL DATA (for test circuit) 1. RF double Tuning Primary (T1) 3 4 Item Pin No. Value L(µ H) 1-3 224 1-2 2 Turns 2-3 82 4-6 37 2 1 6 Bottom View Secondary (T2) 3 4 Item Pin No. Value L(µ H) 1-3 224 1-2 2 Turns 2-3 82 4-6 15 2 1 6 Bottom View 2. IFT(1) Coil (T3) 3 4 Item 2 CO(pF) 1-3 180 f(KHz) 450 QO 1-3 115 1-2 69 Turns 2-3 77 4-6 14 Pin No. 1 6 Value Bottom View High Selectivity Type 3 4 Item 2 CO(pF) 1-3 180 f(KHz) 450 QO 1-3 45 1-2 49 Turns 2-3 103 4-6 27 Pin No. 6 1 Value Bottom View 3. IFT(2) Coil (T4) 3 4 Item 2 CO(pF) 1-3 180 f(KHz) 455 QO 1-3 110 1-2 115 Turns 2-3 37 4-6 6 Pin No. Value 6 1 Bottom View 4. OSC Coil (T5) 3 4 Item 2 L(µ H) 1-3 118 1-2 29 f(MHz) 2-3 29 Pin No. Value 1 6 Bottom View KSI-W020-000 8 SL1019P Typical Performance Characteristics Overall Characteristic 0 (dBm) fT=1MHz fm=400Hz Vcc=8V Icc - Vcc 35 7 (V) 6 5 4 V 3 SM Detection output at 30% mod 130dBu Quiescent 130dBu Quiescent f T = 1 MHz Total 30 25 20 Current Dissipation,Icc(mA) 15 10 5 0 4 6 8 10 12 14 Supply Voltage, Vcc(V) V 7 SM OD -20 Noise -40 Detection Output V V SM I10 +I 14 I 7 +I8 THD 80% mod 30% mod THD (%) -60 -80 2 1 0 120 140 Quiescent130dBu 0 20 40 60 80 IN 100 (dBu) 16 18 Input Voltage V SEL - Δf 10 0 -10 -20 Selectivity SEL(dB) -30 -40 -50 -60 -70 -30 fT=1MHz fm=400Hz 30% mod Vcc=8V - Δf Vcc=8V fT=1MHz non mod Using narrow band filter R8 = 82 Ω R9 = 7.5KΩ SM (V) 6 5 130dBu 4 S Meter Output V 3 2 1 0 -8 30dBu -6 -4 -2 0 4 6 2 Frequency Deviation Δf (KHz) Cross Modulation Characteristic 2 0 Desired 1.4MHz 400Hz 30% mod Undesired 1.44MHz non mod R1 = 100Ω R3 = 75Ω Desired input 90dBu 74dBu Difference in input at -25 dBm output W.B.AGC operation -20 -10 0 10 20 Frequency Deviation Δf (KHz) 30 8 Cross Modulation Characteristic 1 0 Desired 1.0MHz 400Hz 30% mod Undesired 1.4MHz non mod R1 = 100Ω R3 = 75Ω Desired input 80dBu -10 -10 80dBu -20 40dBu 70dBu -20 40dBu 70dBu 60dBu Output (dBu) -30 UnDesired input 40dBu 50dBu 60dBu Output (dBu) -30 Desired input 40dBu 50dBu -40 -40 -50 50dBu -50 50dBu -60 70dBu 60dBu 110dBu -60 70dBu 60dBu 120dBu -70 -80 50 80dBu 90dBu 100dBu 120dBu Desired 1.0MHz non mod Undesired 1.4MHz 400Hz 80% mod -70 -80 80dBu Desired 1.4MHz 90dBu 100dBu 110dBu non mod Undesired 1.44MHz 400Hz 80% mod 60 70 80 90 100 110 120 130 140 50 60 70 80 90 100 110 120 130 140 Interference Input (dBu) Interference Input (dBu) KSI-W020-000 9 V SM 7.5K 82 + 2.7K 100uF BFU 450CN VCC=8V Distortion meter 100K 10K + + 47uF 0 . 4 7 u F 20 19 18 17 16 15 14 13 12 11 100 + 0.01uF 3.3uF 0.047uF 10K VT 0.047uF ~20P ~20P Value IHF voltmeter B.P.F VO 0.033uF (200~15KHz) Application Circuit SVC 321 430pF V OSC DBL SL1019P 1 0 1 9 SL1019 0.022uF 8 47uF 0.0022uF + 9 10 0.0022uF V CC 1 22uF Vcc=8V 20pF 0.022uF x2 100Kx2 20pF 75 + 1uF + 2 3 4 5 6 7 AM S.S.G Ant Dummy 0.022uF KSI-W020-000 SBC546 2SC 536 V T 15pF 50 30 65pF 100uH 0.022uFx2 2SC 315 =8V V CC =8V 3.3mH 51 100K 2SC5345 2SC930 0.022uF SL1019P 10