Ordering number: EN1272E
Monolithic Linear IC
LA1135, 1135M AM Tuner System for Car Radios and Home Stereos
Overview The LA1135 is a high-performance AM electronic tuner IC that is greatly improved in cross modulation characteristics. It is especially suited for use in car radio and home stereo (antenna: loop) applications.
Package Dimensions unit : mm
. MIX . OSC (with ALC) . IF amplifier . Detector . AGC (normal) . RF wide-band AGC . Auto search stop signal (signal meter output) . Local oscillation buffer output . Others
SANYO : DIP20S unit : mm
. Excellent cross modulation characteristics: Meets the . . . . . . . . .
requirements for preventing not only adjacent-channel interference but also interference caused by all channels within broadcast band. Narrow-band signal meter output: Usable as auto search stop signal. Has linearity up to 80 dBµ. Local oscillation buffer output: Facilitates designing of electronic tuner system, frequency display, etc. OSC (with ALC): Improves tracking error because oscillation output is stabilized at a low level (380 mVrms) for varactor diode. MIX: Double-balanced differential MIX meeting the requirements for preventing spurious interference, IF interference. Good characteristics at high input: 130 dBµ input fm = 400 Hz 80% mod THD = 0.4% typ Low noise: Good S/N at medium input (56 dB typ) Usable sensitivity: (S/N = 20 dB input): 25 dBµ (2SK315 IDSS = 11mA) VCC variation compensation: Less variation in gain, distortion: 8 to 12 V Reduced pop noise: Capable of reducing pop noise at the time of VCC ON, mode select by adjusting AGC time constant.
SANYO Electric Co.,Ltd. Semiconductor Bussiness Headquarters TOKYO OFFICE Tokyo Bldg., 10, 1 Chome, Ueno, Taito-ku, TOKYO, 110 JAPAN 93097HA(II)/D0994JN/O217KI/4034KI.TS(KOTO) No.1272-1/18