LA1260 Sanyo Semiconductor Corporation, LA1260 Datasheet
LA1260
Available stocks
Related parts for LA1260
LA1260 Summary of contents
Page 1
... Pins 6+7+ Pin Pin max Ta≤70°C Topr Tstg at Ta=25°C Symbol Conditions N2897HA (KT)/33194HO/O067KI/8225MW/4045KI/8084KI, TS No.1506-1/14 Monolithic Linear IC LA1260 FM/AM Tuner System [LA1260] SANYO : DIP16 Ratings Unit 0.1 mA 450 mW –20 to +70 °C –40 to +125 °C Ratings Unit 4.5 V 3.0 to 8.0 V ...
Page 2
... V Demodulation output V S/N ratio S/N3 S/N4 Total harmonic distortion THD3 THD4 LED lighting voltage V AM rejection ratio AMR Equivalent Circuit Block Diagram LA1260 at Ta=25°C, V =4.5V, See specified Test Circuit CC Conditions V =No input =23dBµ, 400Hz-30% mod =23dBµ, 400Hz-30% mod. ...
Page 3
... S/N, THD, etc.) than the LED drive characteristic remain almost unaffected. • For applications where a double tuning coil is used, refer to "Applications where a double coil is used" on page 13. LA1260 Figure B Bad example Value increased Value decreased • ...
Page 4
... Figures 2 and 3. Figure 1 AM local oscillation Since the LA1260 contains an ALC circuit, the oscillation level at pin 16 can be limited 150mV in the following applications where a coil is used. Stable oscillation occurs at a coil impedance of 5kΩ or greater viewed from across pins 16 and 15. Turn ratio n and ...
Page 5
... The LED unlighted time is 200ms at this value (Approximately 400ms at 22µF). FM-AM selection and dc level at pin 12 Unit (capacitance : F) LA1260 Receiving frequency, f Generally speaking, the following should be noted. Winding with loose coupling between 1 and 2 and between 1 and 3 must be avoided. (Particularly SW1, SW2) ...
Page 6
... FM IF/MW Test Circuit [FM Characteristics] MW input char. 1MHz reception Antenna input voltage, V Attenuation Modulation frequency – Hz LA1260 Voltage at pin 11 – dB fidelity char. Input 30% mod. Distortion L1 TN10896 (Mitsumi) T1 YT-30194 (Mitsumi), 2153-4095-239 (Sumida) T2 KW-30011 (Mitsumi) T3 YT-30105 (Mitsumi) Unit (resistance : Ω, capacitance : F) Current drain LED lighted Antenna input voltage, V – ...
Page 7
... IC injection end V16 Receiving frequency, ∆f – kHz Detection output (400Hz-30% mod.) Whistle max Input voltage – dB/m [FM Characteristics] Detection output AM output IF input voltage – dBµ LA1260 MW detuning char. Max. sensitivity 400Hz-75kHz dev Noise voltage MW receiving char. Tracking adjust at each freq. IF interference ...
Page 8
... Supply voltage OSC frequency (20MHz) Injection voltage V16 Supply voltage, V – OSC frequency OSC voltage Ambient temperature, Ta – °C LA1260 Detection output Sensitivity output 20mV LED light sensitivity Supply voltage, V Detection output –3dB limiting sensitivity LED lighted sensitivity Voltage at pin 11 Supply voltage, V Input 60dBµ ...
Page 9
... OSC frequency Ambient temperature, Ta – °C Voltage at pin 15 Output voltage V18 Quiescent Ambient temperature, Ta – °C Sample Application Circuit 1 LA1260 Detection output Noise voltage OSC voltage Distortion THD min, –3dB limiting sensitivity Ambient temperature, Ta – ° IF/SW2 (7.2 to 24.0MHz) T1 YT-30194 (Mitsumi), 2153-4095-339 (Sumida) ...
Page 10
... Usable sensitivity S/N=20dB Max. sensitivity Image interference Receiving frequency, f – OSC char. No tap Receiving frequency, f – LA1260 SW2 input char. Noise voltage Voltage at pin 11 LED lighted IEC input voltage – dBµ Detection output 30% mod. Noise voltage SW2 input char. Voltage ...
Page 11
... Output –39dBm (referenced to ANT input 24.5dBµ, 8.5MHz) Frequency, f – MHz SW input/output char. 30% detection output ANT input voltage – dB/m LA1260 8.5MHz to 9.4MHz spurious response Receiving frequency, f Detection output LED lighted AM mod. output Noise voltage Distortion ANT input voltage – dBµ ...
Page 12
... Sample Application Circuit 2 [Circuit Diagram] (The sample printed circuit pattern is shown on page 13 YT-30224 (Mitsumi LA1260 : FM (band in US) /MW/SW1 (2.2 to 7.5MHz) /SW2 (7.2 to 24.0MHz) Application where the LA1185 and LA1260 are used Internal 100pF, external 5pF No.1506-12/14 ...
Page 13
... ANT input voltage – dBµ • Applications where a double tuning coil is used (See page 3.) The use of the following coil improves the distortion approximately 0.1% at 100% modulation. LA1260 (The circuit diagram is shown on page 12.) Distortion LED lighting sensitivity 11.5dBµ (Korin Giken) ...
Page 14
... SANYO believes information herein is accurate and reliable, but no guarantees are made or implied regarding its use or any infringements of intellectual property rights or other rights of third parties. This catalog provides information as of November, 1997. Specifications and information herein are subject to change without notice. LA1260 No.1506-14/14 ...