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| 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-7o 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 = 25C) Symbol VCC ICC VOUT VIN IOSC PD Topr Tstg Rating 16 41 24 5.6 2 730 - 20 ~ + 70 - 40 ~ + 125 Unit V mA V V mA mW Block Diagram Lo c a l O S C Bu f f e r O u t 20 LO CA L OSC BUF F ER A LC R F DET ECT O R A T T ENU ATOR DR I V ER Lo c a l O S C2 19 Lo c a l O S C1 18 IF AGC 17 S ignal Me t e r Out 16 S ignal Me t e r In 15 V CC De t e c t o r Out 13 G ND 12 De t e c t o r In 11 14 LO C A L OSC IF AGC S I G NA L MET ER IF D E TE C TO R RF AGC RF A MP 2 RF A MP 2 MIX IF A MP 1 RF AGC Out 2 RF A mp 2 In 3 RF AGC 4 A NT Da mp i n g Dr i v e r 5 G ND 6 Mi x In & R F A mp 1 In 7 Mi x Out 8 V CC 9 IF A mp In 10 IF A mp Out KSI-W020-000 2 SL1019P Test Circuit V V C C =8V SM 7.5K 82 BF U 450CN V C C =8V , f r =1M Hz , f m=400Hz 100K VT SV C 430p F 321 0.047u F ~20P 100u F + 2.7K 0.033uF IHF B.P .F Di s t o r t i o n me t e r V alu e v o l t me t e r VO 10K + + 47u F0.47u F 10K 3.3u F 0.047u F + 15 0.01u F 14 13 (200~15k Hz ) V OSC 20 19 18 17 16 12 11 100 DBL1019 SL1019P 0.022uF A M S .S .G A n t Du mmy 22u F 15p F 30 50 65p F V c c =8V 1 0.022uF + 2 3 + 1u F 4 5 6 7 8 47u F + 9 0.0022uF 10 20p F 0.022u F x2 20pF 75 S BC536 0.0022u F 100u H 0.022u F x 2 V 3.3mH 51 2S C5345 100K 2S K 315 T 100Kx 2 V C C =8V V C C =8V 0.022u F 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 16dB input 30% mod. 74dB input 30% mod. 74dB input 30% mod. 74dB input 30% mod. 74dB input 80% mod. 130dB input 80% mod. Quiescent 130dB input 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. Typ. Max. Unit 18 320 24 380 25 0.2 30 dB mVrms dB dB VOSC (BUF) QS VOD S/N = 20dB Input 74dB 130dB Interference1.4MHz Non mod. Reception 1MHz quiescent. Input for ANT Damping ON. VOSCL - VOSCH WBAGC - 82 - dB Vosc - 15 - mVrms VSM-BW1 Signal Meter Band VSM-BW2 74dB input, frequency at which output is reduced to 1/2 74dB input, frequency at which output is reduced to 1/10 30% mod 10kHz, WBAGC : "OFF" fr = 600kHz, WBAGC : "OFF" fr = 1400KHz, WBAGC : "OFF" - 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 VCC" 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 C15 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 ) ANT 16 MIX 28 IF 45 DET 61 * Each stage is applied input as shown below. ANT Stage MIX Stage 0.1u F 6 S SL1019P L1019 50 1MHz 400Hz 30%mo d 50 A NT Du mmy 50 1M Hz 400Hz 30%mo d IF Stage 0.1u F 9 S L1019 SL1019P 50 450KHz 400Hz 30%mo d 50 Det Stage 0.1u F 100 11 SL1019P S L1019 50 450KHz 400Hz 30%mo d 50 6. To make the ANT damping constant within the receiving band, change the application circuit as shown below. Reference Circuit V C C RF Changing Circuit V C C RF R3 Do u b l e Tu ning C8 2 R3 Do u b l e Tuning C8 2 A NT A NT + 1 C1 C2 CD L1 4 L2 +1 C7 R2 4 L2 C1 R1 C2 C7 L1 R2 KSI-W020-000 5 Information in using IC(Continued) CD 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 S ignal 16M e t e r O u t p u t V cc W i d e Be n d 2 A FC In p u t 6 W ide Be n d AGC V re f Ge RF AGC 1 RB C9 RA R9 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. A NT D a mp i n g 4 A NT D a mp i n g Dr i v e r R A=4.3K R B=3.0K 13 R10 R11 17 RF AGC C1 9 + C1 8 10K 1K + S ignal du ring s e arc h ing f r o m P LL 11. When using MW, no additional resistor is required But when using LW(approximately 50 or greater), additionally connect a resistor of 27K 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 ) KSI-W020-000 6 SL1019P Information in using IC (Continued) 8V 75 Pin2 0.022u F 100K + 22u F 100K P in1 V 0.022u F T T1 T2 0.022u F Pin6 13. Shown below is cross modulation characteristic. O u tpu t A 80 A: Desired signal 83dB 400Hz 30% 80 B mod. The strength of an undesired signal (non mod) causes the desired signal to be suppressed. B: Desired signal 80dB non-mod. 16 50 16 16 0.1u F 30 15p F 65p F T e s t i n g Me t h o d 50 The strength of an undesired signal (40Hz 80% mod) causes interference to occur. 2-S i g n a l P a d Du mmy A NT KSI-W020-000 7 SL1019P COIL DATA (for test circuit) 1. RF double Tuning P r i ma r y (T 1) 3 4 Item Pin No. Value L(H) 1-3 224 1-2 2 Turns 2-3 82 4-6 37 2 1 6 Bo t t o m V i e w S e c o n d a r y (T 2) 3 4 Item Pin No. Value L(H) 1-3 224 1-2 2 Turns 2-3 82 4-6 15 2 1 6 Bo t t o m V i e w 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 Bo t t o m V i e w Hi gh S e le c t i v i t y T y p e 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 Bo t t o m V i e w 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 Bo t t o m V i e w 4. OSC Coil (T5) 3 4 Item Pin No. Value L(H) 1-3 118 1-2 29 f(MHz) 2-3 29 2 1 6 Bo t t o m V i e w KSI-W020-000 8 SL1019P Typical Performance Characteristics O v e r a l l Ch a r a c t e ri s t i c OD (dBm) Ic c - V c c 35 7 6 5 4 3 THD (%) 130dBu Quies cent 130dBu Quies cent I10+I14 I7+I8 Quies cent130dBu fT = 1MHz Total 30 Current Dissipation,Icc(mA) 25 20 15 10 5 0 4 6 8 10 12 14 S u p p l y V o l t a g e , V c c (V ) V 7 SM (V) SM 0 -20 -40 Detection Output V -60 -80 T HD 8 0 % mo d 3 0 % mo d 2 1 0 120 140 0 20 40 60 80 IN 100 (d Bu ) V No i s e V SM SM (V) f T = 1 MH z f m= 4 0 0 H z V cc= 8 V D et ect i o n o ut p ut a t 3 0 % mo d 16 18 In pu t V olta ge V S EL - f 10 0 -10 Selectivity SEL(dB) -20 -30 -40 -50 -60 -70 -30 f T = 1 MH z f m= 4 0 0 H z 3 0 % mo d V cc= 8 V - f V cc= 8 V f T = 1 MH z n o n mo d U si n g n a r r o w b a n d f i l t er 6 5 130d Bu 4 3 2 1 0 -8 74d Bu D i f f er en ce i n i n p ut a t - 2 5 d Bm o ut p ut W . B. AG C o p er a t i o n S Meter Output V R8 = 8 2 R9 = 7 . 5 K -20 -10 0 10 20 F r e q u e n c y De v i a t i o n f (KH z ) 30 30d Bu -6 -4 -2 0 4 6 2 F r e q u e n c y De v i a t i o n f (KH z ) C r o s s Mo d u l a t i o n C h a r a c t e r i s t i c 2 8 Cr o s s M o d u l a t i o n Ch a r a c t e r i s t i c 1 0 -10 D es i r ed 1 . 0 MH z 4 0 0 H z 3 0 % mo d U n d es i r ed 1 . 4 MH z n o n mo d R1 = 1 0 0 R3 = 7 5 D es i r ed i n p ut 8 0 d Bu 0 -10 D es i r ed 1 . 4 MH z 4 0 0 H z 3 0 % mo d U n d es i r ed 1 . 4 4 MH z n o n mo d R1 = 1 0 0 R3 = 7 5 D es i r ed i n p ut 9 0 d Bu 8 0 d Bu -20 Output (dBu) 4 0 d Bu 7 0 d Bu -20 Output (dBu) 4 0 d Bu 7 0 d Bu 6 0 d Bu -30 U n D es i r ed i n p ut 4 0 d Bu 5 0 d Bu 6 0 d Bu -30 D es i r ed i n p ut 4 0 d Bu 5 0 d Bu -40 -40 -50 5 0 d Bu -50 5 0 d Bu 1 1 0 d Bu 7 0 d Bu 6 0 d Bu D es i r ed 1 . 0 MH z n o n mo d U n d es i r ed 1 . 4 MH z 4 0 0 H z 8 0 % mo d 1 2 0 d Bu -60 -60 70dBu 6 0 d Bu -70 -80 50 8 0 d Bu 9 0 d Bu -70 -80 8 0 d Bu 9 0 d Bu 1 0 0 d Bu 1 0 0 d Bu 1 2 0 d Bu D es i r ed 1 . 4 MH z 1 1 0 d Bu n o n mo d U n d es i r ed 1 . 4 4 MH z 4 0 0 H z 8 0 % mo d 60 70 80 90 100 110 120 130 140 50 60 70 80 90 100 110 120 130 140 I n t e r f e r e n c e I n p u t (d Bu ) I n t e r f e r e n c e I n p u t (d Bu ) KSI-W020-000 9 V SM 7.5K 100u F 82 + 2.7K IHF B .P .F BFU 450C N VCC =8V D is tor ti on me te r 100K 10K + + 47uF 0.47u F 20 19 18 17 16 15 14 13 12 11 100 + 0.01u F 3.3u F 0.047uF 0.033u F (200~15K Hz) 10K VT 0.047uF Valu e vol t met er VO S VC 321 430pF ~20P ~20P V O SC Application Circuit DBL1019 SL1019 SL1019P 0. 022u F 8 47u F 0.0022uF + 9 10 0. 0022u F V CC 1 22uF Vc c=8V 20pF 0.022u F x2 100K x2 20pF 75 + 1u F + 2 3 4 5 6 7 AM S .S.G An t Du mmy 0.022u F KSI-W020-000 SBC546 2SC 536 V T 15pF 30 50 65pF 100u H 0.022u Fx2 2S C 315 =8V V CC =8V 3.3mH 51 100K 2S C930 2SC5345 0.022u F SL1019P 10 |
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