80608 MS PC/93097HA(II)/D0994JN/O217KI/4034KI.TS(KOTO) No.1272-1/20
Specifications of any and all SANYO Semiconductor Co.,Ltd. products described or contained herein stipulate
the performance, characteristics, and functions of the described products in the independent state, and are not
guarantees of the performance, characteristics, and functions of the described products as mounted in the
customer
's products or equipment. To verify symptoms and states that cannot be evaluated in an independent
device, the customer should always evaluate and test devices mounted in the customer
'sproductsor
equipment.
Any and all SANYO Semiconductor Co.,Ltd. products described or contained herein are, with regard to
"standard application", intended for the use as general electronics equipment (home appliances, AV equipment,
communication device, office equipment, industrial equipment etc.). The products mentioned herein shall not be
intended for use for any "special application" (medical equipment whose purpose is to sustain life, aerospace
instrument, nuclear control device, burning appliances, transportation machine, traffic signal system, safety
equipment etc.) that shall require extremely high level of reliability and can directly threaten human lives in case
of failure or malfunction of the product or may cause harm to human bodies, nor shall they grant any guarantee
thereof. If you should intend to use our products for applications outside the standard applications of our
customer who is considering such use and/or outside the scope of our intended standard applications, please
consult with us prior to the intended use. If there is no consultation or inquiry before the intended use, our
customer shall be solely responsible for the use.
Overview
The LA1135 and LA1135M are 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.
Features
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 80dBμ.
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 (380mVrms) for varactor
diode.
MIX : Double-balanced differential MIX meeting the requirements for preventing spurious interference, IF interference.
Good characteristics at high input : 130dBμ input, fm = 400Hz 80% mod THD = 0.4% typ
Low noise : Good S/N at medium input (56dB typ)
Usable sensitivity : (S/N = 20dB input) : 25dBμ (2SK315 IDSS = 11mA)
VCC variation compensation : Less variation in gain, distortion : 8 to 12V
Reduced pop noise : Capable of reducing pop noise at the time of VCC ON, mode select by adjusting AGC time constant.
Functions
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
Monolithic Linear IC
For Car Radios and Home Stereos
AM Tuner System
Ordering number : EN1272G
LA1135
LA1135M